/* --- 1. General Settings & Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&display=swap');

:root {
    --bg-main: #0D0D1A;
    --text-main: #D1D1E0;
    --text-heading: #FFFFFF;
    --accent: #00A9FF;
    --mouse-x: 50%;
    --mouse-y: 50%;
    --scroll-percent: 0;
}

* { box-sizing: border-box; }
html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: 'Poppins', sans-serif;
    margin: 0;
    margin-bottom: 2rem;
    overflow-x: hidden;
    cursor: auto; 
}

a {
    text-decoration: none;
}

/* --- 2. Aurora Background --- */
.aurora-background {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    background: radial-gradient(circle 600px at var(--mouse-x) var(--mouse-y),
        rgba(0, 169, 255, 0.15), transparent 80%);
}

/* --- 3. Glassmorphism --- */
.glass {
    background: rgba(18, 18, 30, 0.5);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
}

/* --- 4. Sidebar --- */
.sidebar {
    width: 260px; height: 100vh;
    position: fixed; right: 0; top: 0;
    z-index: 2000;
    padding: 1rem;
    display: flex; flex-direction: column;
    transform: translateX(0);
    transition: transform 0.4s ease-in-out;
}
.sidebar-header {
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 1rem;
    text-align: center;
    display: flex; align-items: center; justify-content: center;
    gap: 10px;
}
.sidebar-header h2 { margin: 0; font-weight: 600; }
.sidebar nav { padding-top: 1rem; flex-grow: 1; }
.sidebar nav a {
    display: flex; align-items: center; gap: 15px;
    color: var(--text-main); text-decoration: none;
    padding: 0.8rem 1.2rem; border-radius: 8px;
    transition: all 0.3s ease;
}
.sidebar nav a:hover, .sidebar nav a.active {
    background-color: var(--accent); color: #fff;
}

.close-sidebar-btn {
    background: transparent;
    border: none;
    color: var(--text-heading);
    font-size: 2rem;
    cursor: pointer;
    position: absolute;
    top: 5px;
    left: 20px;
    line-height: 1;
    padding: 0;
}

/* --- 5. Main Content --- */
.main-content { margin-right: 260px; padding: 3rem; }
.main-page-header { text-align: center; margin-bottom: 4rem; }
.main-page-header h1 { font-size: 3rem; color: var(--text-heading); font-weight: 600; min-height: 120px;}
.main-page-header p { font-size: 1.2rem; }

/* --- 6. Cards --- */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem; perspective: 1000px;
    margin-bottom: 3rem;
}
.card {
    padding: 2rem;
    text-align: center;
    transition: transform 0.2s ease-out;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 120px;
}
.card .card-link {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.card-content { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.card-icon { font-size: 2.5rem; color: var(--accent); }
.card h3 { margin: 0; color: var(--text-heading); font-size: 1.2rem; }
.card p { margin: 0; font-size: 0.9rem; line-height: 1.4; }

.department-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.2rem;
    padding: 1rem;
}
.department-cards-container .card {
    padding: 1.2rem;
    border-radius: 0.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.department-cards-container .card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 169, 255, 0.08);
}
.department-cards-container .card-icon {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}
.department-cards-container .card h3 {
    font-size: 1rem;
    font-weight: 500;
}

/* --- 7. Resources Section --- */
.resources-section {
    padding: 1.5rem 2rem;
    position: relative; 
    overflow: hidden;
    margin-top: 2rem;
    margin-bottom: 2rem;
}
.resources-section::before {
    content: ''; position: absolute; z-index: 0;
    width: 300px; height: 300px;
    top: var(--mouse-y-local, 50%); left: var(--mouse-x-local, 50%);
    background: radial-gradient(circle, rgba(0, 169, 255, 0.15), transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
}
.resources-section h3 {
    color: var(--text-heading); margin: 0 0 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 1rem; display: flex; align-items: center; gap: 10px;
}
.resources-section ul { list-style: none; padding: 0; margin: 0; }
.resources-section ul li a {
    display: flex; justify-content: space-between; align-items: center;
    color: var(--text-main); text-decoration: none;
    padding: 1rem 1.5rem; border-radius: 8px;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.resources-section ul li a:hover {
    background-color: rgba(0, 169, 255, 0.1); color: #fff;
}
.resources-section .link-arrow {
    font-size: 1rem; opacity: 0; transform: translateX(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.resources-section ul li a:hover .link-arrow { opacity: 1; transform: translateX(0); }
.resources-section ul li a div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.resources-section ul li a small {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-top: 5px;
}

/* --- 8. Animations & Effects --- */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s, transform 0.6s; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.dashboard-cards.fade-in.visible .card:nth-child(1){transition-delay:0.1s;}
.dashboard-cards.fade-in.visible .card:nth-child(2){transition-delay:0.2s;}
.dashboard-cards.fade-in.visible .card:nth-child(3){transition-delay:0.3s;}
.dashboard-cards.fade-in.visible .card:nth-child(4){transition-delay:0.4s;}
.resources-section.fade-in.visible{transition-delay:0.5s;}

@keyframes slideIn { from { opacity: 0; transform: translateX(-20px);} to { opacity: 1; transform: translateX(0);} }

/* --- 9. GPA Calculator Page --- */
.gpa-command-center {
    padding: 1.5rem; max-width: 900px; margin: 0 auto;
    border: 1px solid rgba(0,169,255,0.3);
    box-shadow: 0 0 30px rgba(0,169,255,0.1);
    border-radius: 12px;
}
.gpa-settings {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 1.5rem; padding: 0.8rem 1rem;
    background: rgba(0,0,0,0.1); border-radius: 8px;
}
.gpa-settings label { font-size: 0.95rem; font-weight: 500; }

.toggle-switch { position: relative; width: 50px; height: 28px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0,0,0,0.3); border-radius: 34px; transition: .4s;
}
.slider:before {
    content: ""; position: absolute; height: 20px; width: 20px;
    left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: .4s;
}
input:checked + .slider { background-color: var(--accent); }
input:checked + .slider:before { transform: translateX(22px); }

.previous-gpa-section {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
    margin-bottom: 1.5rem; max-height: 0; overflow: hidden; opacity: 0;
    transition: max-height 0.5s, opacity 0.5s, margin-bottom 0.5s;
}
.previous-gpa-section.visible { max-height: 200px; opacity: 1; }

.gpa-input-field {
    width: 100%; padding: 0.7rem 0.9rem;
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-main);
    border-radius: 8px; font-size: 0.9rem;
}
.gpa-input-field:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 10px rgba(0,169,255,0.3); }
.input-group { display: flex; flex-direction: column; gap: 0.5rem; }
.input-group label { font-size: 0.85rem; font-weight: 500; color: var(--text-main); }

.course-card, .retake-course-card {
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 1.2rem;
    display: grid; grid-template-columns: 1fr auto;
    gap: 1.2rem;
    animation: slideIn 0.5s ease-out forwards;
    margin-bottom: 1rem;
}
.course-card-main { display: flex; flex-direction: column; gap: 1rem; flex-grow: 1; }
.course-card-actions { display: flex; align-items: flex-start; justify-content: center; padding-top: 0.5rem; }

.retake-course-card {
    border-left: 4px solid #ff6b6b;
    background: rgba(255,107,107,0.05);
}

.interactive-selector {
    display: flex; flex-wrap: wrap; gap: 0.4rem;
    background: rgba(0,0,0,0.2);
    padding: 0.5rem; border-radius: 8px;
}
.selector-btn {
    flex: 1; min-width: 35px;
    padding: 0.4rem 0.5rem;
    border: 1px solid transparent; background: transparent;
    color: var(--text-main);
    border-radius: 6px; cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}
.selector-btn:hover { background: rgba(255,255,255,0.1); }
.selector-btn.active {
    background-color: var(--accent); color: #fff; font-weight: 600;
    transform: scale(1.05); box-shadow: 0 0 10px rgba(0,169,255,0.5);
}

.remove-course-btn {
    background: rgba(255,71,87,0.1); color: #ff4757;
    border: 1px solid rgba(255,71,87,0.3);
    border-radius: 6px; padding: 0.5rem;
    cursor: pointer; transition: all 0.3s ease;
}
.remove-course-btn:hover { background: rgba(255,71,87,0.2); transform: scale(1.1); }

.gpa-actions { text-align: center; margin-bottom: 1.5rem; }
.gpa-btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.7rem 1.2rem; border-radius: 50px;
    border: 1px solid var(--accent); background: transparent;
    color: var(--accent); font-size: 0.9rem;
    cursor: pointer; transition: all 0.3s ease;
}
.gpa-btn:hover { background: rgba(0,169,255,0.15); transform: translateY(-2px); }

.calculate-btn {
    width: 100%; padding: 0.9rem; margin-top: 1.5rem;
    border-radius: 10px; border: 1px solid var(--accent);
    background: var(--accent); color: #fff;
    font-size: 1rem; font-weight: 600;
    cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 10px;
    transition: all 0.3s ease;
}
.calculate-btn:hover { box-shadow: 0 0 20px var(--accent); transform: scale(1.02); }

.result-display {
    margin-top: 1.5rem; padding: 1rem; text-align: center;
    border-top: 1px solid rgba(0,169,255,0.3);
    display: none; position: relative; overflow: hidden;
}
.gpa-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
    align-items: center; margin-bottom: 1rem;
    padding: 0.8rem; background: rgba(0,0,0,0.1); border-radius: 8px;
}
.gpa-grid h3 { margin: 0; font-size: 0.95rem; color: var(--text-main); }
.gpa-value {
    font-size: 1.8rem; font-weight: 700;
    color: var(--accent); text-shadow: 0 0 20px var(--accent);
}
.gpa-grade {
    font-size: 1.2rem; font-weight: 600; margin-top: 5px; letter-spacing: 1px;
}
.gpa-grade-إمتياز, .gpa-grade-ممتاز { color: #4CAF50; text-shadow: 0 0 10px #4CAF50; }
.gpa-grade-جيدجداً { color: #2196F3; text-shadow: 0 0 10px #2196F3; }
.gpa-grade-جيد { color: #FFC107; text-shadow: 0 0 10px #FFC107; }
.gpa-grade-مقبول { color: #FF9800; text-shadow: 0 0 10px #FF9800; }
.gpa-grade-إنذار { color: #F44336; text-shadow: 0 0 10px #F44336; }

.honor-roll-message {
    margin-top: 1.5rem; padding: 1rem; border-radius: 8px;
    background: rgba(0, 169, 255, 0.1); border: 1px solid rgba(0, 169, 255, 0.3);
    color: var(--accent); font-weight: bold; font-size: 1.2rem; animation: slideIn 0.5s ease;
}

/* --- 10. Courses Page --- */
.accordion-container {
    width: 100%; max-width: 900px; margin: 2rem auto;
    display: flex; flex-direction: column; gap: 1rem;
}
.accordion-item {
    border-radius: 15px; overflow: hidden;
    transition: all 0.3s ease; border: 1px solid rgba(255, 255, 255, 0.1);
}
.accordion-header {
    width: 100%; background: transparent; border: none;
    padding: 1rem 1.5rem; display: flex; justify-content: space-between; align-items: center;
    cursor: pointer; font-size: 1.2rem; font-weight: 600; color: #fff;
}
.accordion-header:hover { background-color: rgba(255, 255, 255, 0.1); }
.accordion-header span { display: flex; align-items: center; gap: 0.75rem; }
.accordion-icon { transition: transform 0.3s ease; }
.accordion-item.active .accordion-icon { transform: rotate(180deg); }
.accordion-content {
    max-height: 0; overflow: hidden; transition: max-height 0.4s ease-out, padding 0.4s ease-out;
    padding: 0 1.5rem; background-color: rgba(0, 0, 0, 0.2);
}
.semester-title {
    color: #fff; padding-top: 1.5rem; margin-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2); padding-bottom: 0.5rem; font-size: 1.1rem;
}
.course-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem; padding-bottom: 1.5rem;
}
.course-card-item {
     background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1.2rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.course-card-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.course-card-item h4 { 
    margin: 0.5rem auto 0.5rem auto; 
    color: #fff; 
    font-size: 1.1rem; 
}
.course-card-item p { 
    margin: 0 auto 0.75rem auto; 
    font-size: 0.9rem; 
    color: #ccc; 
    font-family: monospace; 
}
.course-card-item:hover {
    transform: translateY(-5px) scale(1.02); background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}
.course-hours {
    display: inline-block; background-color: rgba(0, 0, 0, 0.3); color: #fff;
    padding: 0.25rem 0.8rem; border-radius: 20px; font-size: 0.8rem; font-weight: 500;
}
.course-category {
    position: absolute; top: 10px; right: 10px; width: 12px; height: 12px;
    border-radius: 50%; border: 2px solid #fff;
}
.course-category.programming { background-color: #0d6efd; }
.course-category.electronics { background-color: #ffc107; }
.course-category.mechanics { background-color: #dc3545; }
.course-category.math { background-color: #198754; }
.course-category.physics { background-color: #fd7e14; }
.course-category.ai { background-color: #6f42c1; }
.course-category.general { background-color: #6c757d; }
.course-card-link { text-decoration: none; color: inherit; }

/* --- 11. Progress Tracker --- */
.progress-controls {
    padding: 1rem 1.5rem; margin-bottom: 2rem; border: 1px solid rgba(0,169,255,0.2);
}
.progress-tracker {
    display: flex; justify-content: space-around; flex-wrap: wrap; gap: 1rem;
    padding-top: 1rem; margin-top: 1rem; border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.progress-item { text-align: center; }
.progress-item span { font-size: 0.8rem; display: block; margin-bottom: 0.25rem; }
.progress-item strong { font-size: 1.2rem; color: var(--accent); }
.progress-item.gpa-display small { font-size: 0.8rem; font-weight: 400; opacity: 0.8; }
.progress-item.elective-progress strong { color: #ffc107; }

/* --- 12. Teacher Cards Page --- */
.teacher-cards-container {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}
.teacher-card {
    display: flex; flex-direction: row; align-items: center;
    padding: 1.2rem; gap: 1.5rem; transition: all 0.3s ease;
}
.teacher-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 25px rgba(0, 169, 255, 0.15);
    border-color: rgba(0, 169, 255, 0.3);
}
.teacher-photo img {
    width: 85px; height: 85px; border-radius: 50%;
    border: 3px solid var(--accent); object-fit: cover;
    transition: transform 0.3s ease;
}
.teacher-card:hover .teacher-photo img { transform: scale(1.1); }
.teacher-info { flex: 1; text-align: right; }
.teacher-info .teacher-name {
    color: var(--text-heading); margin: 0 0 0.25rem 0; font-size: 1.2rem;
}
.teacher-info .teacher-rank {
    color: var(--accent); margin: 0 0 0.75rem 0; font-size: 0.9rem;
}
.teacher-contact p {
    display: flex; align-items: center; justify-content: flex-start;
    gap: 10px; margin: 0.2rem 0; font-size: 0.9rem;
}
.head-of-department { grid-column: span 2; }
.head-of-department .teacher-photo { width: 100px; height: 100px; }
.head-of-department .teacher-rank { font-size: 1em; }


/* --- 13. Course Details Page --- */
.meta-box-container {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem; max-width: 900px; margin: 0 auto 2rem auto;
}
.meta-box { text-align: center; padding: 1.5rem 1rem; border-radius: 16px; }
.meta-box i { font-size: 2.2rem; color: var(--accent); display: block; margin-bottom: 0.75rem; }
.meta-box span { font-size: 0.9rem; display: block; margin-bottom: 0.25rem; }
.meta-box strong { font-size: 1.1rem; font-weight: 600; color: var(--text-heading); }
.course-info-btn { display: block; width: fit-content; margin: 0 auto 2.5rem auto; }

.video-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    padding-top: 1rem;
}
.video-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    width: 320px;
    max-width: 100%;
}
.video-title {
    color: var(--text-heading); margin: 0 0 1rem 0;
    text-align: center; font-size: 1.1rem; font-weight: 500;
}
.video-container {
    position: relative; padding-bottom: 56.25%;
    height: 0; overflow: hidden; border-radius: 8px; flex-grow: 1;
}
.video-container iframe {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%; max-width: 100%;
}

/* --- 14. Modals (Grade Input, Images) --- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(13, 13, 26, 0.7); backdrop-filter: blur(5px);
    display: flex; align-items: center; justify-content: center;
    z-index: 5000; opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}
.modal-overlay.visible { opacity: 1; pointer-events: auto; }
.modal-content {
    padding: 2rem; width: 90%; max-width: 500px;
    text-align: center; transform: scale(0.95); transition: transform 0.3s ease;
}
.modal-overlay.visible .modal-content { transform: scale(1); }
.modal-content h3 { margin: 0 0 0.5rem 0; color: var(--text-heading); }
#modal-grade-selector {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(50px, 1fr));
    gap: 0.5rem; margin: 1.5rem 0;
}
.modal-actions {
    display: flex; justify-content: center; gap: 1rem; margin-top: 1.5rem;
}
.gpa-btn.secondary {
    background: rgba(255, 255, 255, 0.1); border-color: transparent; color: var(--text-main);
}
.gpa-btn.secondary:hover { background: rgba(255, 255, 255, 0.2); }

/* --- 15. App Download Buttons --- */
.app-download-buttons {
    display: flex; justify-content: center; align-items: center;
    gap: 1rem; flex-wrap: wrap;
}
.app-download-btn {
    display: flex; align-items: center; gap: 12px; padding: 10px 20px;
    background-color: #000; color: #fff; text-decoration: none;
    border-radius: 8px; border: 1px solid #555;
    transition: all 0.3s ease; min-width: 200px; 
}
.app-download-btn:hover {
    background-color: #222; transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
.app-download-btn i { font-size: 2rem; }
.app-download-btn div {
    display: flex; flex-direction: column;
    text-align: left; line-height: 1.2;
}
.app-download-btn span { font-size: 0.8rem; opacity: 0.8; }
.app-download-btn strong { font-size: 1.2rem; font-weight: 600; }

/* --- 16. Mobile Responsive (@media query) --- */
@media (max-width: 768px) {
    body {
        -webkit-tap-highlight-color: transparent;
    }
    .main-content {
        margin-right: 0;
        padding: 1.5rem;
    }
    .main-page-header h1 { font-size: 2.2rem; line-height: 1.3; min-height: 150px; }
    .main-page-header p { font-size: 1rem; }

    .aurora-background {
        background: radial-gradient(circle 600px at calc(var(--scroll-percent) * 100%) -20%, rgba(0,169,255,0.2), transparent 80%);
        transition: background 0.5s ease-out;
    }
    .mobile-header { 
        display: flex; align-items: center; justify-content: space-between; 
        padding: 1rem; position: sticky; top: 0; z-index: 1000; 
        background: rgba(18, 18, 30, 0.8);
        backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .sidebar {
        width: 80%; max-width: 300px;
        transform: translateX(100%);
        background: rgba(18, 18, 30, 0.8);
    }
    body.sidebar-open .sidebar { transform: translateX(0); }
    .hamburger-btn { display: flex; flex-direction: column; justify-content: space-around; width: 30px; height: 25px; background: transparent; border: none; cursor: pointer; }
    .hamburger-btn span { width: 100%; height: 3px; background: var(--text-heading); border-radius: 5px; transition: all .3s ease; }
    .page-overlay {
        position: fixed; top: 0; left: 0; width: 100%; height: 100%;
        background-color: rgba(0, 0, 0, 0.5); z-index: 1500;
        display: none; opacity: 0; transition: opacity 0.3s ease;
    }
    .page-overlay.active { display: block; opacity: 1; }

    .progress-tracker { grid-template-columns: 1fr 1fr; }
    .previous-gpa-section, .gpa-grid { grid-template-columns: 1fr; }
    .course-card, .retake-course-card { grid-template-columns: 1fr; }
    .teacher-cards-container { grid-template-columns: 1fr; }

    .teacher-card {
        flex-direction: column !important;
        text-align: center; gap: 1rem;
    }
    .teacher-info, .teacher-contact p { text-align: center; justify-content: center; }

    .video-item { padding: 0.75rem; }
    .video-container { min-width: 0; }
    .video-title { font-size: 1rem; margin-bottom: 0.75rem; }

    .resources-section h3 { font-size: 1.3rem; padding-bottom: 0.75rem; }
    .selector-btn { padding: 0.6rem; min-width: 40px; font-size: 0.9rem; }
    .gpa-btn, .calculate-btn { padding: 0.8rem 1.5rem; font-size: 1rem; }
}

@media (min-width: 769px) {
    .mobile-header, .close-sidebar-btn { display: none; }
}
/* --- 17. Grade Badge Styles --- */
.course-card-item {
    position: relative;
}

.grade-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
    background-color: #6c757d;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.2);
}

.grade-badge.grade-excellent { background-color: #28a745; }
.grade-badge.grade-good { background-color: #198754; }
.grade-badge.grade-average { background-color: #fd7e14; }
.grade-badge.grade-fail { background-color: #dc3545; }

/* --- 18. Dynamic Border Colors for Completed Courses --- */
.course-card-link.completed .course-card-item {
    opacity: 0.7;
    background: rgba(40, 167, 69, 0.1);
    border-color: #28a745;
}
.course-card-link.completed .course-card-item h4 { 
    text-decoration: line-through; 
}
.course-card-link.grade-excellent .course-card-item {
    border-color: #28a745;
    background-color: rgba(40, 167, 69, 0.1);
}
.course-card-link.grade-good .course-card-item {
    border-color: #b3e86e;
    background-color: rgba(25, 135, 84, 0.1);
}
.course-card-link.grade-average .course-card-item {
    border-color: #fd7e14;
    background-color: rgba(253, 126, 20, 0.1);
}
.course-card-link.grade-fail .course-card-item {
    border-color: #dc3545;
    background-color: rgba(220, 53, 69, 0.1);
}

/* --- 19. Custom WhatsApp Button & About Page Cards --- */
.whatsapp-btn {
    color: #fff !important;
    border: none;
    background: linear-gradient(90deg, var(--accent) 0%, #25D366 100%);
    box-shadow: 0 4px 15px rgba(0, 169, 255, 0.2);
    transition: all 0.3s ease;
}
.whatsapp-btn:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}
.story-card {
    padding: 2rem;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.story-card .story-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
}
.story-card h2 {
    color: var(--text-heading);
    margin-top: 0;
    margin-bottom: 1rem;
}
.story-card p {
    max-width: 600px;
    line-height: 1.8;
}
.developer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.developer-info .social-links {
    display: flex;
    gap: 1.5rem;
    margin: 1rem 0;
}
.developer-info .social-links a {
    font-size: 1.5rem;
    color: var(--text-main);
    transition: color 0.3s ease, transform 0.3s ease;
}
.developer-info .social-links a:hover {
    color: var(--accent);
    transform: scale(1.1);
}
.robotics-info-block {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    padding: 2.5rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    background: rgba(18, 18, 30, 0.5) !important;
    backdrop-filter: blur(15px) !important;
    -webkit-backdrop-filter: blur(15px) !important;
    border-radius: 16px !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.robotics-info-block:hover {
    transform: translateY(-5px); 
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}
.robotics-info-block.reverse-layout {
    flex-direction: row-reverse;
}
.robotics-info-block .info-content {
    flex: 1;
}
.robotics-info-block .info-visual i {
    font-size: 5rem;
    color: var(--accent);
    opacity: 0.5;
}
.styled-list {
    list-style: none;
    padding: 0;
}
.styled-list li {
    padding-right: 1.5rem;
    position: relative;
    margin-bottom: 1rem;
}
.styled-list li::before {
    content: ''; 
    position: absolute;
    right: 0;
    top: 50%; 
    transform: translateY(-50%);
    width: 8px;
    height: 8px; 
    background-color: var(--accent); 
    border-radius: 50%; 
    box-shadow: 0 0 8px var(--accent); 
}
@media (max-width: 768px) {
    .robotics-info-block, 
    .robotics-info-block.reverse-layout {
        flex-direction: column-reverse;
        text-align: center;
    }
    .styled-list li {
        padding-right: 2rem;
    }
}
.robotics-info-block::before,
.robotics-info-block::after {
    display: none !important;
}

/* --- Styles for Teacher Search Bar --- */
.search-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem 1.2rem;
    margin: -2rem auto 3rem auto;
    max-width: 600px;
    border-radius: 50px;
    border-color: rgba(0, 169, 255, 0.2);
}
.search-container i {
    font-size: 1.2rem;
    color: var(--accent);
}
.search-input {
    flex-grow: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-heading);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    width: 100%;
}
.search-input::placeholder {
    color: var(--text-main);
    opacity: 0.7;
}

/* === Futuristic Holographic GPA Result Card === */
.gpa-result-card {
    position: relative;
    padding: 1.5rem 2rem;
    border-radius: 16px;
    border: 1px solid;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(0, 0, 0, 0.2));
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    overflow: hidden;
    margin-bottom: 1.5rem;
    animation: fadeInResult 0.8s ease-out;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: 160px;
}
@keyframes fadeInResult {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
.gpa-result-card::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, currentColor 0%, transparent 45%);
    transform-origin: center;
    opacity: 0.1;
    animation: rotateGlow 20s linear infinite;
}
@keyframes rotateGlow {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}
.result-numerical {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1;
    text-shadow: 0 0 20px currentColor;
    flex-shrink: 0;
}
.result-details-group {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
}
.result-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.7;
    margin-bottom: 0.5rem;
}
.result-rank {
    font-size: 2.2rem;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}
.result-symbol {
    font-size: 1rem;
    font-family: monospace;
    opacity: 0.8;
    background-color: rgba(0,0,0,0.2);
    padding: 0.2rem 0.6rem;
    border-radius: 5px;
}
.gpa-result-card.excellent,
.gpa-result-card.very-good {
    border-color: #28a745;
    color: #28a745;
    box-shadow: 0 0 25px rgba(40, 167, 69, 0.3);
}
.gpa-result-card.good,
.gpa-result-card.passable {
    border-color: #a0d911;
    color: #a0d911;
    box-shadow: 0 0 25px rgba(160, 217, 17, 0.3);
}
.gpa-result-card.pass {
    border-color: #ffc107;
    color: #ffc107;
    box-shadow: 0 0 25px rgba(255, 193, 7, 0.3);
}
.gpa-result-card.warning {
    border-color: #dc3545;
    color: #dc3545;
    box-shadow: 0 0 25px rgba(220, 53, 69, 0.3);
}
@media (max-width: 768px) {
    .gpa-result-card {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        padding: 1.5rem;
    }
    .result-details-group {
        align-items: center;
    }
    .result-numerical {
        font-size: 4rem;
    }
    .result-rank {
        font-size: 1.8rem;
        margin-bottom: 0.25rem;
    }
}

/* ======================================================= */
/* ====== التحسينات الجديدة المضافة للواجهة (V2) ====== */
/* ======================================================= */

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 2rem;
    padding: 12px 25px;
    border-radius: 50px;
    background-color: var(--accent);
    color: #fff;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 169, 255, 0.2);
}
.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 169, 255, 0.3);
    background-color: #00BFFF;
}

.portal-card:hover {
    border-color: rgba(0, 169, 255, 0.5) !important;
}
.portal-card .card-icon {
    transition: color 0.3s ease, text-shadow 0.3s ease;
}
.portal-card:hover .card-icon {
    color: #fff;
    text-shadow: 0 0 15px var(--accent);
}

.quick-links-section {
    padding: 1.5rem 2rem;
    text-align: center;
    margin-top: 2rem;
}
.quick-links-section h3 {
    color: var(--text-heading); margin: 0 0 1.5rem 0;
    display: flex; align-items: center; justify-content: center; gap: 10px;
    border-bottom: none;
}
.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}
.link-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    text-decoration: none;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}
.link-card i {
    font-size: 2rem;
    color: var(--accent);
    transition: all 0.3s ease;
}
.link-card span {
    font-weight: 500;
}
.link-card:hover {
    background: rgba(0, 169, 255, 0.1);
    border-color: rgba(0, 169, 255, 0.3);
    color: #fff;
    transform: translateY(-5px);
}
.link-card:hover i {
    transform: scale(1.1);
    text-shadow: 0 0 10px var(--accent);
}

.app-download-cards-container {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}
.download-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 1.2rem 2.5rem;
    border-radius: 15px;
    background: rgba(18, 18, 30, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    text-decoration: none;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}
.download-card:before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 169, 255, 0.2) 0%, transparent 60%);
    transition: transform 0.6s ease;
    transform: rotate(0deg) scale(0);
    z-index: 0;
    opacity: 0;
}
.download-card:hover:before {
    transform: rotate(360deg) scale(1);
    opacity: 1;
}
.download-card i {
    font-size: 3.5rem;
    color: #fff;
    z-index: 1;
    transition: transform 0.3s ease;
}
.download-card:hover i {
    transform: scale(1.1);
}
.download-card .card-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    z-index: 1;
}
.download-card .card-text span {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: -5px;
}
.download-card .card-text strong {
    font-size: 1.5rem;
    font-weight: 600;
}
.app-store-card:hover i { color: var(--accent); }
.google-play-card:hover i { color: var(--accent); }
@media (max-width: 600px) {
    .app-download-cards-container {
        flex-direction: column;
        align-items: center;
    }
    .download-card {
        width: 90%;
        max-width: 350px;
        padding: 1rem 2rem;
    }
    .download-card i { font-size: 3rem; }
    .download-card .card-text strong { font-size: 1.3rem; }
}
@keyframes section-highlight-glow {
    0% { box-shadow: 0 0 0 rgba(0, 169, 255, 0); }
    50% { box-shadow: 0 0 40px rgba(0, 169, 255, 0.5); }
    100% { box-shadow: 0 0 0 rgba(0, 169, 255, 0); }
}
.highlight-section {
    animation: section-highlight-glow 1.5s ease-out;
}

.tabs-section {
    padding: 0;
    overflow: hidden;
}
.tabs-container {
    display: flex;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 0.5rem;
    gap: 0.5rem;
    overflow-x: auto;
}
.tabs-container::-webkit-scrollbar {
    display: none;
}
.tab-btn {
    flex-shrink: 0;
    padding: 0.8rem 1.5rem;
    border: none;
    background: transparent;
    color: var(--text-main);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 3px solid transparent;
}
.tab-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}
.tab-btn.active {
    background-color: var(--accent) !important;
    color: #fff !important;
    box-shadow: 0 4px 15px rgba(0, 169, 255, 0.2);
    transform: translateY(-2px);
}
.tab-content-container {
    padding: 2rem;
}
.tab-content {
    display: none;
    animation: fadeInContent 0.5s ease-out;
}
.tab-content.active {
    display: block;
}
@keyframes fadeInContent {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 768px) {
    .tabs-container {
        justify-content: flex-start;
    }
    .tab-btn {
        padding: 0.7rem 1rem;
        font-size: 0.9rem;
    }
    .tab-content-container {
        padding: 1.5rem;
    }
}

.progress-accordion-header {
    justify-content: space-between;
    width: 100%;
}
.progress-header-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.progress-header-bar-container {
    flex-grow: 1;
    height: 20px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    margin: 0 2rem;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.progress-header-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent), #00c3ff);
    border-radius: 20px;
    transition: width 0.8s ease-out;
}
.progress-header-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}
@media (max-width: 768px) {
    .progress-header-bar-container {
        display: none;
    }
}

.delete-options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 2rem 0;
}
.delete-option-btn {
    width: 100%;
    justify-content: center;
}
.delete-option-btn.danger {
    background: rgba(220, 53, 69, 0.2);
    border-color: rgba(220, 53, 69, 0.4);
    color: #dc3545;
}
.delete-option-btn.danger:hover {
    background: rgba(220, 53, 69, 0.3);
    color: #ff4757;
}
@media (max-width: 600px) {
    .delete-options-grid {
                text-align: center;

        grid-template-columns: 1fr;
    }
}


/* ============================================= */
/* --- Styles for Completed Courses Modal (CLEANED) --- */
/* ============================================= */

#completed-courses-modal .modal-content {
    max-width: 90%;
    width: 1200px;
}
#completed-courses-modal .modal-content .close-modal-btn {
    position: absolute;
    top: 20px;
    left: 20px;
}

.completed-list-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    padding-top: 1rem;
    width: 100%;
}

.completed-list-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    font-size: 1.1rem;
    opacity: 0.8;
}

.completed-group-card {
    display: flex;
    flex-direction: column;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    background: rgba(18, 18, 30, 0.5);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.completed-group-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.completed-group-header {
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.completed-group-header h3 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--accent);
}

.completed-group-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.completed-group-box-content {
    padding: 0.75rem 1.25rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex-grow: 1;
}

.completed-course-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.completed-course-row:last-child {
    border-bottom: none;
}

.completed-course-row .course-title {
    font-size: 0.95rem;
    flex-grow: 1;
}

.completed-course-grade {
    font-weight: bold;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    font-size: 0.9rem;
    min-width: 50px;
    text-align: center;
}
.completed-course-grade.grade-excellent { background-color: #28a745; }
.completed-course-grade.grade-good { background-color: #198754; }
.completed-course-grade.grade-average { background-color: #fd7e14; }
.completed-course-grade.grade-fail { background-color: #dc3545; }
/* --- تصميم مخصص لزر مسح الإنجاز --- */
.delete-btn-custom {
    background-color: rgba(220, 53, 69, 0.15);
    border-color: rgba(220, 53, 69, 0.4);      
    color: #f85b6a;            
}           

.delete-btn-custom:hover {
    background-color: rgba(220, 53, 69, 0.3);
    border-color: rgba(220, 53, 69, 0.6);
    color: #ff7b88;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.2);
}

.delete-btn-custom:active {
    transform: translateY(0);
}
/* --- تنسيق وسم العلامة على بطاقة المادة --- */
.course-card-item {
    position: relative; 

}
.grade-badge-on-card {
    position: absolute;
    top: 10px;
    right: 10px; /* تغيير موضع العلامة إلى اليمين */
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem; /* تصغير حجم الخط */
    font-weight: 600;
    color: #fff;
    background-color: #6c757d; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1; /* يجب أن يكون أقل من زر الحذف */
}

.grade-badge-on-card.grade-excellent {
    background: linear-gradient(45deg, #28a745, #28a745);
}
.grade-badge-on-card.grade-good {
    background: linear-gradient(45deg, #1eff00, #1eff00);
}
.grade-badge-on-card.grade-average {
    background: linear-gradient(45deg, #ffc107, #fd7e14);
    color: #111;
}
.grade-badge-on-card.grade-fail {
    background: linear-gradient(45deg, #ff0000, #ff0000);
}

.course-card-link.completed .course-card-item {
    opacity: 0.8; 
}
.course-card-link.completed:hover .course-card-item {
    opacity: 1;
}
/* ======================================================= */
/* ====== ✨ تحسينات تصميم صفحة حساب المعدل (V3) ✨ ====== */
/* ======================================================= */

/* --- 1. تحديث لوحة التحكم الرئيسية --- */
.gpa-command-center {
    background: linear-gradient(145deg, rgba(28, 28, 48, 0.6), rgba(18, 18, 30, 0.7));
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 169, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    transition: all 0.3s ease-in-out;
}

.gpa-command-center:hover {
    box-shadow: 0 0 40px rgba(0, 169, 255, 0.25);
}

/* --- 2. تحسين حقول إدخال المعدل السابق --- */
.gpa-input-field {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.gpa-input-field:focus {
    background: rgba(0, 0, 0, 0.2);
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(0, 169, 255, 0.4);
    transform: scale(1.02);
}

/* --- 3. تصميم جديد لبطاقات المواد --- */
.course-card, .retake-course-card {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card:hover, .retake-course-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    border-color: rgba(0, 169, 255, 0.3);
}

/* --- تأثير إضاءة عند المرور --- */
.course-card::before, .retake-course-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 169, 255, 0.15) 0%, transparent 50%);
    transform: scale(0);
    transition: transform 0.5s ease;
    pointer-events: none;
    opacity: 0;
}

.course-card:hover::before, .retake-course-card:hover::before {
    transform: scale(1);
    opacity: 1;
}

/* --- 4. تحديث أزرار الإجراءات --- */
.gpa-btn {
    border-radius: 8px;
    border: 1px solid transparent;
    background: rgba(0, 169, 255, 0.1);
    color: var(--accent);
    font-weight: 500;
    transition: all 0.3s ease;
}

.gpa-btn:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 169, 255, 0.3);
}

/* --- 5. زر الحساب الرئيسي --- */
.calculate-btn {
    position: relative;
    background: linear-gradient(90deg, var(--accent) 0%, #00BFFF 100%);
    border: none;
    box-shadow: 0 0 20px rgba(0, 169, 255, 0.3);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.calculate-btn:hover {
    transform: scale(1.03);
    box-shadow: 0 0 35px rgba(0, 169, 255, 0.6);
}

.calculate-btn .bi-lightning-charge-fill {
    transition: transform 0.3s ease;
}

.calculate-btn:hover .bi-lightning-charge-fill {
    transform: scale(1.2) rotate(15deg);
}

/* --- 6. إعادة تصميم عرض النتائج (Holographic/Futuristic) --- */
/* استخدم التصميم الحالي .gpa-result-card فهو ممتاز، لكن سنضيف له بعض اللمسات */

.gpa-result-card {
    background: linear-gradient(145deg, rgba(28, 28, 48, 0.5), rgba(18, 18, 30, 0.6));
    border: 1px solid; /* اللون يحدده كلاس التقدير */
    transition: all 0.4s ease-out;
}

.gpa-result-card:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}

/* --- إضافة خطوط مسح ضوئي للتأثير المستقبلي --- */
.result-display {
    position: relative;
}

.result-display::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 98%, currentColor 100%);
    background-size: 100% 4px;
    opacity: 0.2;
    animation: scanlines 5s linear infinite;
    pointer-events: none;
}

@keyframes scanlines {
    from { background-position: 0 0; }
    to { background-position: 0 100px; }
}

/* --- تحسين رسالة لوحة الشرف --- */
.honor-roll-message {
    background: linear-gradient(45deg, rgba(0, 169, 255, 0.1), rgba(40, 167, 69, 0.15));
    border: 1px solid rgba(0, 169, 255, 0.4);
    box-shadow: 0 0 20px rgba(0, 169, 255, 0.2);
    font-size: 1.1rem;
    padding: 1.2rem;
}
.honor-roll-message {
    /* الخصائص الموجودة مسبقاً */
    background: linear-gradient(45deg, rgba(0, 169, 255, 0.1), rgba(40, 167, 69, 0.15));
    border: 1px solid rgba(0, 169, 255, 0.4);
    box-shadow: 0 0 20px rgba(0, 169, 255, 0.2);
    font-size: 1.1rem;
    padding: 1.2rem;
    
    display: flex; 
    justify-content: center; 
    align-items: center; 
    text-align: center; 
    min-height: 80px; 
    border-radius: 12px; 
    margin-top: 20px; 
    color: #E0E0FF; 
}
/* =================================================================== */
/* =================================================================== */

/* 1. إعداد البطاقات للتأثيرات ثلاثية الأبعاد والتفاعلية */
.about-page-main .story-card {
    perspective: 1500px; /* تفعيل المنظور الثلاثي الأبعاد */
    position: relative;
    overflow: hidden; /* لإخفاء الضوء الزائد عن الحواف */
}

/* 2. تأثير الضوء الموجه الذي يتبع الفأرة */
.about-page-main .story-card::before {
    content: '';
    position: absolute;
    top: var(--mouse-y-local, 50%);
    left: var(--mouse-x-local, 50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 169, 255, 0.2) 0%, transparent 60%);
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none; /* لمنع التأثير من اعتراض نقرات الفأرة */
}

.about-page-main .story-card:hover::before {
    opacity: 1; /* إظهار الضوء عند المرور */
}

/* 3. حركة دخول متقدمة للعناصر عند التمرير */
.story-card.fade-in {
    opacity: 0;
    transform: perspective(1000px) rotateX(-20deg) translateY(50px);
    transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.story-card.fade-in.visible {
    opacity: 1;
    transform: perspective(1000px) rotateX(0deg) translateY(0);
}

/* تأخير ظهور البطاقات بشكل متسلسل */
.story-card.fade-in:nth-child(2) { transition-delay: 0.1s; }
.story-card.fade-in:nth-child(3) { transition-delay: 0.2s; }
.story-card.fade-in:nth-child(4) { transition-delay: 0.3s; }


/* 4. إعداد بطاقة المطور للتأثير ثلاثي الأبعاد (الـ JavaScript سيتحكم بها) */
#developer-card { /* سنعطي بطاقة المطور ID مميز */
    transition: transform 0.1s linear; /* حركة ميلان سلسة وسريعة */
}
/* =================================================================== */
/* =================================================================== */
/* في نهاية ملف 1.index.css */

/* 1. الحالة الافتراضية للجسم (يبدأ شفاف) */
body {
    transition: opacity 0.4s ease-in-out;
}

body.page-fade-in {
    opacity: 1;
}

body.page-fade-out {
    opacity: 0;
}
/* --- Final Fix for Double Cursor --- */
.typed-cursor {
  /* Reset all properties that might cause duplication */
  border: none !important;
  outline: none !important;
  text-shadow: none !important;
  box-shadow: none !important;
  
  /* Ensure stable rendering and font style */
  display: inline-block;
  vertical-align: middle;
  font-weight: normal !important;
  font-style: normal !important;
  
  /* Prevent any pseudo-elements from appearing */
  content: "" !important;
}

/* =================================================================== */
/* --- ✨ تعديلات التصميم الجديدة لنافذة عرض الصور ✨ --- */
/* =================================================================== */

/* 1. القاعدة الأساسية المشتركة للنافذتين */
#image-modal-tree .image-modal-content,
#image-modal-grades .image-modal-content {
    all: unset; /* إلغاء كل التنسيقات القديمة المتعارضة */
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: auto;
    max-width: 90%;
    max-height: 95vh;
    padding: 60px 20px 80px 20px; /* مساحة داخلية للزر العلوي والسفلي */

    /* التصميم الزجاجي */
    background: rgba(18, 18, 30, 0.7);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

/* 2. تنسيق الصورة داخل الإطار */
#image-modal-tree .image-modal-content img,
#image-modal-grades .image-modal-content img {
    all: unset;
    display: block;
    width: 100%;
    max-height: calc(95vh - 140px); /* حساب الارتفاع المتاح للصورة */
    object-fit: contain;
    border-radius: 8px;
}

/* 3. تصميم زر الإغلاق (X) الموحد */
#image-modal-tree .close-modal-btn,
#image-modal-grades .close-modal-btn {
    all: unset;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 15px;
    left: 15px; /* RTL friendly */
    z-index: 10;
    width: 40px;
    height: 40px;
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    line-height: 1;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
}

#image-modal-tree .close-modal-btn:hover,
#image-modal-grades .close-modal-btn:hover {
    background-color: rgba(220, 53, 69, 1);
    transform: rotate(90deg);
}

/* 4. تصميم أزرار الإجراءات السفلية (التحميل) */
#image-modal-tree .modal-actions,
#image-modal-grades .modal-actions {
    all: unset;
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 15px;
}

/* 5. تصميم موحد للزر السفلي gpa-btn داخل النافذة */
#image-modal-tree .modal-actions .gpa-btn,
#image-modal-grades .modal-actions .gpa-btn {
    all: unset;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border-radius: 50px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: #fff;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: rgba(30, 30, 50, 0.5);
}

#image-modal-tree .modal-actions .gpa-btn:hover,
#image-modal-grades .modal-actions .gpa-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    background-color: var(--accent);
    border-color: var(--accent);
}

@media (max-width: 768px) {
 
    .tabs-section {
        display: flex;
        flex-direction: column;
        gap: 0.5rem; 
    }

    .tabs-section::before {
        content: '⟷ اسحب لتصفح السنوات ⟷'; 
        display: block; 
        text-align: center; 
        font-size: 0.8rem; 
        font-weight: 500;
        color: var(--text-main);
        opacity: 0.8;
        padding-bottom: 0.25rem; 
        animation: subtle-pulse 2.5s infinite ease-in-out; 
    }
    
   
    .tab-content-container {
       padding-top: 1rem; 
    }


    @keyframes subtle-pulse {
        0%, 100% {
            opacity: 0.6;
        }
        50% {
            opacity: 1;
        }
    }
}
@media (max-width: 768px) {
    /* إظهار شريط التقدم على الشاشات الصغيرة */
    .progress-header-bar-container {
        display: block !important;
        width: 100%;
        margin: 1rem 0;
        order: 3; /* وضعه في نهاية العناصر */
    }

    /* تحسين تخطيط عناصر التقدم */
    .progress-accordion-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .progress-header-title {
        margin-bottom: 0.5rem;
    }

    /* تحسين حجم النص المعروض داخل شريط التقدم */
    .progress-header-text {
        font-size: 0.7rem;
        white-space: nowrap;
    }

    /* تحسين تخطيط عدادات الساعات */
    .progress-tracker {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .progress-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 8px;
    }
}
/* تحسينات للعرض على الجوال */
@media (max-width: 768px) {
    /* منع العناصر من الإختفاء */
    .progress-item, 
    .gpa-settings,
    .input-group,
    .course-card {
        opacity: 1 !important;
        visibility: visible !important;
        display: flex !important;
    }
    
    /* تحسين مساحة العناصر */
    .main-content {
        padding: 1rem;
    }
    
    .gpa-command-center {
        padding: 1rem;
    }
    
    /* تحسين حجم الخطوط للجوال */
    .progress-item span {
        font-size: 0.9rem;
    }
    
    .progress-item strong {
        font-size: 1.1rem;
    }
    
    /* تحسين الأزرار للجوال */
    .gpa-btn, 
    .calculate-btn {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }
}
/* ======================================================= */
/* ====== تنسيقات صفحة دليل التخصصات المحسّنة ====== */
/* ======================================================= */

.main-page-header h1 {
    font-size: 3.5rem; /* حجم أكبر للعنوان الرئيسي */
    text-shadow: 0 0 15px rgba(var(--accent-rgb), 0.7); /* ظل حول النص */
    color: var(--accent); /* لون مميز */
    margin-bottom: 0.5rem;
}

.main-page-header p {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 2rem;
}

.comparison-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr)); /* مرونة أكبر للعرض */
    gap: 2.5rem; /* زيادة المسافة بين الأعمدة */
    max-width: 1500px; /* عرض أقصى أوسع قليلاً */
    margin: 3rem auto; /* زيادة المسافة العلوية */
    padding: 0 1rem; /* مسافة داخلية على الجوانب */
}

.specialization-column {
    background: rgba(255, 255, 255, 0.08); /* تأثير زجاجي شفاف ومضيء */
    border: 1px solid rgba(255, 255, 255, 0.2); /* حدود واضحة */
    border-radius: 20px; /* حواف أكثر دائرية */
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.8rem; /* زيادة المسافة بين الأقسام الداخلية */
    backdrop-filter: blur(15px); /* تأثير التعتيم الزجاجي */
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3); /* ظل عميق وواضح */
    transition: all 0.3s ease; /* انتقال سلس عند التحويم */
}

.specialization-column:hover {
    transform: translateY(-10px) scale(1.02); /* رفع وتكبير بسيط عند التحويم */
    box-shadow: 0 12px 40px 0 rgba(var(--accent-rgb), 0.4); /* ظل بلون مميز */
}

.column-header {
    text-align: center;
    color: var(--accent); /* لون مميز للعناوين الرئيسية */
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.column-header i {
    font-size: 4.5rem; /* أيقونات أكبر */
    margin-bottom: 1rem;
    display: block;
    text-shadow: 0 0 10px rgba(var(--accent-rgb), 0.5); /* ظل حول الأيقونات */
    transition: transform 0.3s ease;
}

.specialization-column:hover .column-header i {
    transform: scale(1.1) rotate(5deg); 
}
.column-header h2 {
    margin: 0;
    font-size: 2.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px; 
}
.column-header h2 i {
    font-size: 1.8rem; 
}

.column-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
    border-radius: 5px;
}

.topic {
    background: rgba(0, 0, 0, 0.3); /* خلفية أغمق  للأقسام الفرعية */
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 15px; /* حواف أكثر دائرية */
    padding: 1.5rem 2rem; /* زيادة المسافة الداخلية */
    transition: all 0.2s ease-in-out; /* انتقال سلس */
}

.topic:hover {
    border-color: var(--accent); 
    transform: translateY(-5px); 
    box-shadow: 0 5px 20px rgba(var(--accent-rgb), 0.2);
}

.topic-header {
    margin: 0 0 1rem 0;
    color: var(--text-color); /* لون نص طبيعي */
    font-size: 1.4rem; /* عنوان قسم أكبر */
    font-weight: 600;
    position: relative;
    padding-right: 2.5rem; /* مساحة للأيقونة */
}

/* أيقونة جانبية لعناوين الأقسام */
.topic-header::before {
    font-family: 'bootstrap-icons';
    content: '\F4DA'; /* أيقونة كتاب مفتوح - bi-book */
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--accent);
}

.topic:nth-child(2) .topic-header::before { content: '\F32C'; } /* مسارات وظيفية - bi-briefcase */
.topic:nth-child(3) .topic-header::before { content: '\F4DE'; } /* مهارات - bi-tools */
.topic:nth-child(4) .topic-header::before { content: '\F438'; } /* طبيعة العمل - bi-pc-display-horizontal */


.topic-content ul {
    list-style: none;
    padding-right: 0;
    margin: 0;
}

.topic-content li {
    padding-right: 2.2rem; /* مسافة أكبر لأيقونة Checkmark */
    position: relative;
    margin-bottom: 0.8rem;
    font-size: 1.05rem;
    line-height: 1.5;
    color: var(--text-color-light); /* لون نص أخف */
}

.topic-content li::before {
    content: '\F26E'; /* أيقونة Checkmark من Bootstrap Icons */
    font-family: 'bootstrap-icons';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent);
    font-weight: bold;
    font-size: 1.2rem;
}

.topic-content p {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--text-color-light);
    margin: 0;
}

/* تنسيق للكلمات البارزة (Strong) داخل القوائم */
.topic-content strong {
    color: var(--accent);
    font-weight: bold;
}

@media (max-width: 992px) {
    .comparison-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-top: 2rem;
    }
    .specialization-column {
        padding: 2rem;
    }
    .column-header i {
        font-size: 3.5rem;
    }
    .column-header h2 {
        font-size: 1.8rem;
    }
    .topic-header {
        font-size: 1.2rem;
    }
    .topic-content li, .topic-content p {
        font-size: 0.95rem;
    }
}
@media (max-width: 576px) {
    .main-page-header h1 {
        font-size: 2.5rem;
    }
    .main-page-header p {
        font-size: 1rem;
    }
    .specialization-column {
        padding: 1.5rem;
    }
    .column-header i {
        font-size: 3rem;
    }
    .column-header h2 {
        font-size: 1.5rem;
    }
}
/* ======================================================= */
/* ====== تنسيق قسم المشاريع للمبتدئين ====== */
/* ======================================================= */

.topic.starter-project {
    background: rgba(var(--accent-rgb), 0.1);
    border: 1px solid rgba(var(--accent-rgb), 0.4);
    box-shadow: 0 0 25px rgba(var(--accent-rgb), 0.15);
}

.topic.starter-project .topic-header::before {
    content: '\F586'; 
    font-size: 1.4rem;
}

.topic.starter-project .topic-content li::before {
    content: '\F560'; 
    font-size: 1.1rem;
}

.topic.starter-project .topic-content small {
    display: block;
    opacity: 0.7;
    font-size: 0.85rem;
    margin-right: 0.5rem; 
    margin-top: 4px;
}
/* ======================================================= */
/* ====== تصميم زر المصادر والنافذة المنبثقة ====== */
/* ======================================================= */

.resource-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-top: 1rem;
    padding: 10px 15px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    color: #fff;
    background: rgba(var(--accent-rgb), 0.25);
    border: 1px solid rgba(var(--accent-rgb), 0.5);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.resource-btn:hover {
    background: var(--accent);
    box-shadow: 0 5px 15px rgba(var(--accent-rgb), 0.4);
    transform: translateY(-3px);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 13, 26, 0.7);
    backdrop-filter: blur(10px);
    display: none; 
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.visible {
    display: flex;
    opacity: 1;
}

.modal-content {
    position: relative;
    padding: 2.5rem;
    width: 90%;
    max-width: 800px;
    border-top: 4px solid var(--accent);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal-overlay.visible .modal-content {
    transform: scale(1);
}

#modal-title {
    text-align: center;
    color: var(--text-heading);
    font-size: 2rem;
    margin-top: 0;
    margin-bottom: 2rem;
}

.resources-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.resource-category h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--accent);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 0.75rem;
    margin: 0 0 1rem 0;
}

.resource-category ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.resource-category a {
    display: block;
    padding: 12px 15px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    color: var(--text-main);
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.resource-category a:hover {
    background: rgba(var(--accent-rgb), 0.2);
    border-color: var(--accent);
    color: #fff;
    transform: translateX(-5px);
}

#close-modal-btn {
    position: absolute;
    top: 15px;
    left: 15px; 
    font-size: 2rem;
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
}

@media (max-width: 768px) {
    .resources-container {
        grid-template-columns: 1fr;
    }
    #modal-title {
        font-size: 1.5rem;
    }
}
/* --- ✨ أكواد خاصة بأنميشن حذف بطاقة المادة ✨ --- */
@keyframes fadeOutCard {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.9);
    }
}

.card-fade-out {
    animation: fadeOutCard 0.3s ease-out forwards;
}/* ================================================= */
/* ======   تصميم نافذة البحث المنبثقة الجديدة   ====== */
/* ================================================= */

/* 1. تصميم زر تشغيل البحث في القائمة الجانبية */
.sidebar-search-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    margin: 20px 0;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.sidebar-search-trigger:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.sidebar-search-trigger i {
    font-size: 1.1rem;
}

/* 2. تصميم خلفية النافذة المنبثقة */
.search-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 13, 26, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 10000;
    display: flex;
    justify-content: center;
    padding-top: 10vh; /* ترك مسافة من الأعلى */
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.search-modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* 3. تصميم محتوى النافذة */
.search-modal-content {
    width: 90%;
    max-width: 650px;
    height: fit-content;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    border-radius: 16px;
    padding: 1rem;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.search-modal-overlay.visible .search-modal-content {
    transform: scale(1);
}

/* 4. تصميم حقل البحث داخل النافذة */
.modal-search-input-container {
    display: flex;
    align-items: center;
    gap: 15px;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.modal-search-input-container i {
    font-size: 1.5rem;
    color: var(--accent);
}

#modal-search-input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-heading);
    font-family: 'Poppins', sans-serif;
    font-size: 1.2rem;
    padding: 0.5rem 0;
}

#modal-search-input::placeholder {
    color: var(--text-main);
    opacity: 0.6;
}

/* 5. تصميم حاوية النتائج داخل النافذة */
#modal-search-results {
    padding-top: 0.5rem;
    overflow-y: auto;
}

#modal-search-results::-webkit-scrollbar { width: 6px; }
#modal-search-results::-webkit-scrollbar-thumb { background-color: var(--accent); border-radius: 10px; }
#modal-search-results::-webkit-scrollbar-track { background-color: rgba(0,0,0,0.3); }

/* (نفس تصميم النتائج السابق ولكن بدون تعديل) */
.result-item { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 12px; text-decoration: none; color: var(--text-main); transition: all 0.2s ease-in-out; overflow: hidden; }
.result-item:hover, .result-item:focus { background-color: var(--accent); color: #fff; transform: scale(1.03); }
.result-item i { font-size: 1.5rem; color: var(--accent); transition: all 0.2s ease-in-out; flex-shrink: 0; }
.result-item:hover i { color: #fff; }
.result-text { display: flex; flex-direction: column; flex-grow: 1; min-width: 0; text-align: right; }
.result-name, .result-type { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.result-name { font-weight: 500; font-size: 0.95rem; }
.result-type { font-size: 0.8rem; opacity: 0.7; }
.result-item.no-results { justify-content: center; text-align: center; padding: 20px; opacity: 0.8; }
.result-item.no-results:hover { background-color: transparent; transform: none; color: var(--text-main); }/* ================================================= */
/* ======   تنسيق تظليل العنصر عند البحث   ====== */
/* ================================================= */

a.highlighted-from-search .teacher-card,
a.highlighted-from-search .course-card-item {
    transition: all 0.5s ease-in-out !important;
    box-shadow: 0 0 30px 8px var(--accent) !important;
    transform: scale(1.05) !important;
    border-color: var(--accent) !important;
}
/* ================================================= */
/* ======   تنسيق تظليل العنصر عند البحث   ====== */
/* ================================================= */

.highlighted-from-search .teacher-card,
a.highlighted-from-search .course-card-item {
    transition: all 0.5s ease-in-out !important;
    box-shadow: 0 0 30px 8px var(--accent) !important;
    transform: scale(1.05) !important;
    border-color: var(--accent) !important;
}
/* ================================================= */
/* ======   تصميم نافذة الاختيار للمواد المشتركة   ====== */
/* ================================================= */

.choice-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 13, 26, 0.7);
    backdrop-filter: blur(10px);
    z-index: 11000; /* يجب أن تكون فوق نافذة البحث */
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.choice-modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.choice-modal-content {
    width: 90%;
    max-width: 450px;
    padding: 2rem;
    text-align: center;
    border-radius: 16px;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.choice-modal-overlay.visible .choice-modal-content {
    transform: scale(1);
}

.choice-modal-content h3 {
    margin: 0 0 1.5rem 0;
    color: var(--text-heading);
}

.choice-modal-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.choice-modal-options .gpa-btn {
    width: 100%;
    justify-content: center;
    text-decoration: none;
}
/* ======================================================= */
/* ====== ✨ تحسينات احترافية للتصميم (V4) ✨ ====== */
/* ======================================================= */

/* --- 1. تحسينات عامة (Global Enhancements) --- */

/* تحسين قابلية القراءة للنصوص الطويلة */
body {
    line-height: 1.7;
}

/* تصميم موحد لشريط التمرير (Scrollbar) ليتناسب مع هوية الموقع */
::-webkit-scrollbar {
    width: 8px;
    background-color: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background-color: var(--accent);
    border-radius: 10px;
    border: 2px solid var(--bg-main);
}
::-webkit-scrollbar-thumb:hover {
    background-color: #00BFFF;
}

/* خطوط مرنة تتكيف مع حجم الشاشة بسلاسة (Fluid Typography) */
h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem); /* يتراوح بين 2.2rem و 3.5rem */
}
h2 {
    font-size: clamp(1.5rem, 4vw, 2.2rem);
}
h3 {
    font-size: clamp(1.1rem, 3vw, 1.4rem);
}


/* --- 2. تحسينات المرونة والاستجابة (Responsiveness) --- */

/* إضافة نقطة توقف (Breakpoint) للشاشات الكبيرة جداً (Large Desktops) */
@media (min-width: 1400px) {
    .main-content {
        padding: 4rem 6rem; /* زيادة المساحة على الشاشات الكبيرة */
    }
    .gpa-command-center,
    .accordion-container,
    .comparison-container {
        max-width: 1100px; /* زيادة العرض الأقصى للعناصر الرئيسية */
    }
}

/* تحسين عرض الشبكة على الشاشات اللوحية (Tablets) */
@media (max-width: 992px) and (min-width: 769px) {
    .dashboard-cards {
        grid-template-columns: repeat(2, 1fr); /* ضمان وجود عنصرين فقط في كل صف */
    }
    .teacher-cards-container {
        grid-template-columns: 1fr; /* عرض دكتور واحد في كل صف لتحسين القراءة */
    }
}


/* --- 3. لمسات احترافية على العناصر (UI Polish) --- */

/* تحسين تجربة النقر على جميع العناصر القابلة للتفاعل */
a, button, .course-card-link, .link-card, .sidebar-search-trigger {
    cursor: pointer;
}

/* إضافة تأثير "الضغط" عند النقر على الأزرار */
.gpa-btn:active, .cta-button:active, .tab-btn:active, .resource-btn:active {
    transform: translateY(1px) scale(0.98);
    box-shadow: none;
}

/* تحسين التركيز (Focus) للتنقل باستخدام لوحة المفاتيح (Accessibility) */
a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    box-shadow: 0 0 15px rgba(0, 169, 255, 0.5);
    border-radius: 6px;
}
/* إخفاء التحسين السابق عند استخدام الماوس لتجربة أنظف */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
input:focus:not(:focus-visible) {
    outline: none;
    box-shadow: none;
}

/* إضافة تدرج لوني خفيف على خلفية البطاقات الرئيسية لمزيد من العمق */
.card.glass, .resources-section.glass {
    background: linear-gradient(145deg, rgba(22, 22, 38, 0.5), rgba(18, 18, 30, 0.6));
}

/* تحسين تأثير الظل على البطاقات عند المرور */
.card:hover, .teacher-card:hover, .specialization-column:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
/* ======================================================= */
/* ====== ✨ تسريع حركة ظهور العناصر عند التمرير ✨ ====== */
/* ======================================================= */

/* 1. تقليل مدة الحركة الأساسية إلى النصف */
.fade-in {
    transition: opacity 0.3s ease-out, transform 0.3s ease-out; /* تقليل المدة من 0.6s إلى 0.3s */
}

/* 2. إلغاء التأخير المتسلسل بين البطاقات والعناصر */
.dashboard-cards.fade-in.visible .card,
.resources-section.fade-in.visible,
.story-card.fade-in {
    transition-delay: 0s !important; /* إلغاء التأخير تماماً */
}
@media (max-width: 600px) {
    .delete-options-grid {
                text-align: center;

        grid-template-columns: 1fr ;
    }
}
/* --- Styles for My Courses Page --- */.remove-course-btn {
    background: rgba(255,71,87,0.1);
    color: #ff4757;
    border: 1px solid rgba(255,71,87,0.3);
    border-radius: 6px;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}


.course-card-link.grade-mode .course-card-item {
    cursor: pointer;
}
.course-card-link:not(.grade-mode) .grade-badge-on-card {
    display: none;
}
/* --- Styles for My Courses Page Search --- */
.my-courses-search-section {
    position: relative; /* This is the key. Establishes a positioning context. */
    margin-bottom: 2rem;
}
.my-courses-search-section .search-container {
    max-width: 100%;
    margin: 0;
}
.my-courses-search-section #search-results-list {
    position: absolute;
    top: 100%; /* Positions the list right below the search bar */
    left: 0;
    right: 0;
    z-index: 100;
    margin-top: 10px;
    padding: 10px;
    border-radius: 12px;
}
.my-courses-search-section #search-results-list .result-item {
    cursor: pointer;
}
.my-courses-search-section #search-results-list .result-item:hover {
    background: rgba(0, 169, 255, 0.1);
}

@media (max-width: 768px) {
    .my-courses-search-section #search-results-list {
        max-width: 90%;
        left: 5%;
        right: 5%;
    }
}
/* --- 14. Modals (Grade Input, Images) --- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(13, 13, 26, 0.7); backdrop-filter: blur(5px);
    display: flex; align-items: center; justify-content: center;
    z-index: 5000; opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}
.modal-overlay.visible { opacity: 1; pointer-events: auto; }
.modal-content {
    padding: 2rem; width: 90%; max-width: 500px;
    text-align: center; transform: scale(0.95); transition: transform 0.3s ease;
}
.modal-overlay.visible .modal-content { transform: scale(1); }
.modal-content h3 { margin: 0 0 0.5rem 0; color: var(--text-heading); }
#modal-grade-selector {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(50px, 1fr));
    gap: 0.5rem; margin: 1.5rem 0;
}
.modal-actions {
    display: flex; justify-content: center; gap: 1rem; margin-top: 1.5rem;
}
.gpa-btn.secondary {
    background: rgba(255, 255, 255, 0.1); border-color: transparent; color: var(--text-main);
}
.gpa-btn.secondary:hover { background: rgba(255, 255, 255, 0.2); }

/* --- 17. Grade Badge Styles --- */
.course-card-item {
    position: relative;
}

.grade-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
    background-color: #6c757d;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.2);
}

.grade-badge.grade-excellent { background-color: #28a745; }
.grade-badge.grade-good { background-color: #198754; }
.grade-badge.grade-average { background-color: #fd7e14; }
.grade-badge.grade-fail { background-color: #dc3545; }

/* --- 18. Dynamic Border Colors for Completed Courses --- */
.course-card-link.completed .course-card-item {
    opacity: 0.7;
    background: rgba(40, 167, 69, 0.1);
    border-color: #28a745;
}
.course-card-link.completed .course-card-item h4 { 
    text-decoration: line-through; 
}
.course-card-link.grade-excellent .course-card-item {
    border-color: #28a745;
}
.course-card-link.grade-good .course-card-item {
    border-color: #b3e86e;
}
.course-card-link.grade-average .course-card-item {
    border-color: #ffc107;
}
.course-card-link.grade-fail .course-card-item {
    border-color: #dc3545;
}
/* --- تنسيق وسم العلامة على بطاقة المادة --- */
.course-card-item {
    position: relative; 
}
.grade-badge-on-card {
    position: absolute;
    top: 10px;
    right: 10px; /* تغيير موضع العلامة إلى اليمين */
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem; /* تصغير حجم الخط */
    font-weight: 600;
    color: #fff;
    background-color: #6c757d; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1; /* يجب أن يكون أقل من زر الحذف */
}

.grade-badge-on-card.grade-excellent {
    background: linear-gradient(45deg, #28a745, #28a745);
}
.grade-badge-on-card.grade-good {
    background: linear-gradient(45deg, #1eff00, #1eff00);
}
.grade-badge-on-card.grade-average {
    background: linear-gradient(45deg, #ffc107, #fd7e14);
    color: #111;
}
.grade-badge-on-card.grade-fail {
    background: linear-gradient(45deg, #ff0000, #ff0000);
}

.course-card-link.completed .course-card-item {
    opacity: 0.8; 
}
.course-card-link.completed:hover .course-card-item {
    opacity: 1;
}
/* Styling for the new buttons group */
@media (max-width: 768px) {
    .gpa-btn {
        width: 100%;
        text-align: center;
        padding-left: 0;
        padding-right: 0;
    }
    .main-page-header + div > .gpa-btn {
        flex-grow: 1;
    }
}
/* --- GPA Calculator Page --- */
.gpa-command-center {
    padding: 1.5rem; max-width: 900px; margin: 0 auto;
    border: 1px solid rgba(0,169,255,0.3);
    box-shadow: 0 0 30px rgba(0,169,255,0.1);
    border-radius: 12px;
}
.gpa-settings {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 1.5rem; padding: 0.8rem 1rem;
    background: rgba(0,0,0,0.1); border-radius: 8px;
}
.gpa-settings label { font-size: 0.95rem; font-weight: 500; }

.toggle-switch { position: relative; width: 50px; height: 28px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0,0,0,0.3); border-radius: 34px; transition: .4s;
}
.slider:before {
    content: ""; position: absolute; height: 20px; width: 20px;
    left: 4px; bottom: 4px; background-color: #fff; border-radius: 50%; transition: .4s;
}
input:checked + .slider { background-color: var(--accent); }
input:checked + .slider:before { transform: translateX(22px); }

.previous-gpa-section {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
    margin-bottom: 1.5rem; max-height: 0; overflow: hidden; opacity: 0;
    transition: max-height 0.5s, opacity 0.5s, margin-bottom 0.5s;
}
.previous-gpa-section.visible { max-height: 200px; opacity: 1; }

.gpa-input-field {
    width: 100%; padding: 0.7rem 0.9rem;
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-main);
    border-radius: 8px; font-size: 0.9rem;
}
.gpa-input-field:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 10px rgba(0,169,255,0.3); }
.input-group { display: flex; flex-direction: column; gap: 0.5rem; }
.input-group label { font-size: 0.85rem; font-weight: 500; color: var(--text-main); }

.course-card-actions .remove-course-btn {
    display: inline-block !important;
    opacity: 1 !important;   
    visibility: visible !important; 
}
/* تحسين تصميم مودال مسح الإنجاز على الشاشات الكبيرة */
@media (min-width: 992px) {
  #delete-modal .modal-content {
    max-width: 600px;
    padding: 2.5rem 3rem;
    border-radius: 16px;
    background: rgba(18, 18, 30, 0.85);
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 10px 40px rgba(0,0,0,0.4);
  }

  #delete-modal h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #fff;
  }

  #delete-modal .modal-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
  }

  #delete-modal .gpa-btn {
    min-width: 150px;
    font-size: 1rem;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
  }
}
/* 🎨 تصميم موحّد ومتجاوب لمودال مسح الإنجاز */

/* القاعدة العامة (تشتغل لكل الشاشات) */
#delete-modal .modal-content {
  padding: 2rem;
  width: 90%;
  max-width: 500px;
  background: rgba(18, 18, 30, 0.9);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 8px 25px rgba(0,0,0,0.4);
}

#delete-modal h3 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: #fff;
}

#delete-modal .modal-actions {
  display: flex;
  flex-direction: column; /* مبدئيًا الأزرار تحت بعض */
  gap: 0.8rem;
  margin-top: 1.5rem;
}

#delete-modal .gpa-btn {
  width: 100%;
  font-size: 0.95rem;
  padding: 0.7rem 1rem;
  border-radius: 8px;
}
/* زر مسح الإنجاز بحجم ثابت على كل الشاشات */
#clear-all-btn {
  min-width: 180px;   /* العرض الأدنى */
  max-width: 180px;   /* العرض الأقصى */
  height: 45px;       /* ارتفاع ثابت */
  font-size: 1rem;    /* حجم خط ثابت */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;        /* مسافة بين الأيقونة والنص */
  text-align: center;
}

/* ✅ تحسين العرض للشاشات الأكبر */
@media (min-width: 768px) {
  #delete-modal .modal-content {
    max-width: 600px;
    padding: 2.5rem 3rem;
    border-radius: 16px;
  }

  #delete-modal h3 {
    font-size: 1.5rem;
  }

  #delete-modal .modal-actions {
    flex-direction: row; /* الأزرار جنب بعض */
    justify-content: center;
    flex-wrap: wrap;
  }

  #delete-modal .gpa-btn {
    min-width: 150px;
    width: auto;
    font-size: 1rem;
  }
}
@media (max-width: 768px) {
    body {
        -webkit-tap-highlight-color: transparent;
    }
    .main-content {
        margin-right: 0;
        padding: 1.5rem;
    }
    .main-page-header h1 { font-size: 2.2rem; line-height: 1.3; min-height: 150px; }
    .main-page-header p { font-size: 1rem; }

    .aurora-background {
        background: radial-gradient(circle 600px at calc(var(--scroll-percent) * 100%) -20%, rgba(0,169,255,0.2), transparent 80%);
        transition: background 0.5s ease-out;
    }
    .mobile-header { 
        display: flex; align-items: center; justify-content: space-between; 
        padding: 1rem; position: sticky; top: 0; z-index: 1000; 
        background: rgba(18, 18, 30, 0.8);
        backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .sidebar {
        width: 80%; max-width: 300px;
        transform: translateX(100%);
        background: rgba(18, 18, 30, 0.8);
    }
    body.sidebar-open .sidebar { transform: translateX(0); }
    .hamburger-btn { display: flex; flex-direction: column; justify-content: space-around; width: 30px; height: 25px; background: transparent; border: none; cursor: pointer; }
    .hamburger-btn span { width: 100%; height: 3px; background: var(--text-heading); border-radius: 5px; transition: all .3s ease; }
    .page-overlay {
        position: fixed; top: 0; left: 0; width: 100%; height: 100%;
        background-color: rgba(0, 0, 0, 0.5); z-index: 1500;
        display: none; opacity: 0; transition: opacity 0.3s ease;
    }
    .page-overlay.active { display: block; opacity: 1; }

    .progress-tracker { grid-template-columns: 1fr 1fr; }
    .previous-gpa-section, .gpa-grid { grid-template-columns: 1fr; }
    .course-card, .retake-course-card { grid-template-columns: 1fr; }
    .teacher-cards-container { grid-template-columns: 1fr; }

    .teacher-card {
        flex-direction: column !important;
        text-align: center; gap: 1rem;
    }
    .teacher-info, .teacher-contact p { text-align: center; justify-content: center; }

    .video-item { padding: 0.75rem; }
    .video-container { min-width: 0; }
    .video-title { font-size: 1rem; margin-bottom: 0.75rem; }

    .resources-section h3 { font-size: 1.3rem; padding-bottom: 0.75rem; }
    .selector-btn { padding: 0.6rem; min-width: 40px; font-size: 0.9rem; }
    .gpa-btn, .calculate-btn { padding: 0.8rem 1.5rem; font-size: 1rem; }
    
    /* === التعديلات المضافة لتحسين مظهر الأزرار على الهاتف === */
    .gpa-command-center .my-courses-search-section + .gpa-settings,
    .progress-actions {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    .gpa-command-center .my-courses-search-section + .gpa-settings > div,
    .progress-actions > .gpa-btn {
        width: 100%;
    }
    .gpa-btn {
        width: 100%;
        text-align: center;
    }
    .delete-options-grid {
        text-align: center;
        grid-template-columns: 1fr;
    }
    
}

@media (max-width: 768px) {
    .progress-actions {
        flex-direction: column;
        align-items: center;
        gap: 1rem;

    }
    .progress-actions .gpa-btn {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .delete-options-grid {
        width: 50%;
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .delete-option-btn {
        width: 100%;
        text-align: center;
    }
}
/* --- إضافة كلاس جديد لإظهار نتائج المعدل --- */
.result-display.visible {
    display: block !important;
    animation: fadeInResult 0.8s ease-out;
}