/* style.css - Educational Platform Design */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #764ba2;
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    --success: #10b981;
    --danger: #ef4444;
    --dark: #1e293b;
    --dark-light: #334155;
    --light: #f8fafc;
    --gray: #64748b;
    --gray-light: #cbd5e1;
    --gradient-start: #667eea;
    --gradient-end: #764ba2;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

body {
    font-family: 'Cairo', 'Segoe UI', 'Tahoma', 'Tajawal', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

/* Animated background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '🧪';
    position: fixed;
    font-size: 80px;
    opacity: 0.05;
    bottom: 5%;
    right: 5%;
    pointer-events: none;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(10deg); }
}

.container {
    width: 100%;
    max-width: 550px;
    position: relative;
    z-index: 1;
    animation: slideUp 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Card */
.card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 48px;
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    transition: all 0.3s ease;
    position: relative;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.3);
}

/* Teacher Profile */
.teacher-profile {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.teacher-profile::before {
    content: '⚛️';
    position: absolute;
    font-size: 150px;
    opacity: 0.08;
    bottom: -30px;
    right: -30px;
    transform: rotate(-15deg);
    pointer-events: none;
}

.teacher-profile::after {
    content: '🔬';
    position: absolute;
    font-size: 100px;
    opacity: 0.08;
    top: -20px;
    left: -20px;
    transform: rotate(10deg);
    pointer-events: none;
}

.teacher-avatar-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

.teacher-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-xl);
    transition: transform 0.3s ease;
}

.teacher-avatar:hover {
    transform: scale(1.05);
}

.teacher-badge {
    position: absolute;
    bottom: 5px;
    right: 5px;
    background: var(--accent);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    border: 3px solid white;
    box-shadow: var(--shadow);
}

.teacher-badge i {
    font-size: 16px;
}

.teacher-info {
    color: white;
    position: relative;
    z-index: 1;
}

.teacher-name {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.teacher-title {
    font-size: 0.95rem;
    opacity: 0.95;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.teacher-school {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.teacher-bio {
    font-size: 0.85rem;
    opacity: 0.85;
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 15px;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(5px);
}

/* Decorative Elements */
.decorative-elements {
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 20px 0 10px;
    background: white;
}

.chem-icon {
    font-size: 28px;
    color: var(--primary);
    opacity: 0.6;
    animation: bounce 3s ease-in-out infinite;
}

.chem-icon:nth-child(2) {
    animation-delay: 0.2s;
    color: var(--secondary);
}

.chem-icon:nth-child(3) {
    animation-delay: 0.4s;
    color: var(--accent);
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.divider {
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--secondary), var(--accent), transparent);
    margin: 0 30px;
}

/* Title Section */
.title-section {
    padding: 30px 30px 20px;
    text-align: center;
    background: white;
}

.section-title {
    font-size: 1.5rem;
    color: var(--dark);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.section-title i {
    color: var(--primary);
}

.section-subtitle {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Input Group */
.input-group {
    padding: 0 30px 20px;
    background: white;
}

.input-wrapper {
    position: relative;
    margin-bottom: 15px;
}

.input-icon {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
    font-size: 18px;
    transition: all 0.3s ease;
}

.input-wrapper input {
    width: 100%;
    padding: 16px 50px 16px 20px;
    font-size: 1rem;
    border: 2px solid var(--gray-light);
    border-radius: 60px;
    background: var(--light);
    font-family: inherit;
    text-align: right;
    letter-spacing: 2px;
    font-weight: 500;
    transition: all 0.3s ease;
    direction: rtl;
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-wrapper input.error {
    border-color: var(--danger);
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.play-button {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    border: none;
    border-radius: 60px;
    color: white;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all 0.3s ease;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.play-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.play-button:hover::before {
    width: 300px;
    height: 300px;
}

.play-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.play-button:active {
    transform: translateY(0);
}

.play-button i {
    font-size: 1.2rem;
}

.play-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Info Message */
.info-message {
    padding: 0 30px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--gray);
}

.info-message i {
    color: var(--accent);
}

/* Message */
.message {
    margin: 0 30px 30px;
    padding: 12px 16px;
    border-radius: 16px;
    text-align: center;
    font-size: 0.9rem;
    display: none;
}

.message.error {
    display: block;
    background: #fee2e2;
    color: var(--danger);
    border-right: 3px solid var(--danger);
}

.message.success {
    display: block;
    background: #d1fae5;
    color: var(--success);
    border-right: 3px solid var(--success);
}

/* Video Overlay */
.video-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 10000;
    display: none;
    flex-direction: column;
}

.video-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}

#video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: none;
}

/* Loading Container */
.loading-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10001;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    color: white;
    font-size: 1.2rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
}

.dots {
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { opacity: 0; }
    40% { opacity: 1; }
    100% { opacity: 1; }
}

.loading-subtitle {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

.close-video {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    color: white;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10002;
}

.close-video:hover {
    background: var(--danger);
    transform: scale(1.1);
}

.no-scroll {
    overflow: hidden;
}

/* ==================== */
/* RESPONSIVE DESIGN */
/* ==================== */

/* Tablets (768px and up) */
@media (min-width: 768px) and (max-width: 1023px) {
    .container {
        max-width: 650px;
    }
    
    .teacher-avatar {
        width: 140px;
        height: 140px;
    }
    
    .teacher-name {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .input-wrapper input {
        padding: 18px 55px 18px 25px;
        font-size: 1.1rem;
    }
    
    .play-button {
        padding: 18px;
        font-size: 1.2rem;
    }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
    .container {
        max-width: 600px;
    }
    
    .card:hover {
        transform: translateY(-8px);
    }
    
    .teacher-avatar {
        width: 130px;
        height: 130px;
        transition: transform 0.3s ease;
    }
    
    .teacher-avatar:hover {
        transform: scale(1.08);
    }
}

/* Mobile Landscape (max-width: 767px) */
@media (max-width: 767px) {
    body {
        padding: 15px;
    }
    
    .card {
        border-radius: 32px;
    }
    
    .teacher-profile {
        padding: 30px 20px;
    }
    
    .teacher-avatar {
        width: 90px;
        height: 90px;
    }
    
    .teacher-badge {
        width: 28px;
        height: 28px;
    }
    
    .teacher-badge i {
        font-size: 12px;
    }
    
    .teacher-name {
        font-size: 1.4rem;
    }
    
    .teacher-title, .teacher-school {
        font-size: 0.8rem;
    }
    
    .teacher-bio {
        font-size: 0.75rem;
        padding: 6px 12px;
    }
    
    .chem-icon {
        font-size: 22px;
    }
    
    .divider {
        margin: 0 20px;
    }
    
    .title-section {
        padding: 20px 20px 15px;
    }
    
    .section-title {
        font-size: 1.2rem;
    }
    
    .section-subtitle {
        font-size: 0.8rem;
    }
    
    .input-group {
        padding: 0 20px 15px;
    }
    
    .input-wrapper input {
        padding: 14px 45px 14px 15px;
        font-size: 0.9rem;
    }
    
    .input-icon {
        right: 15px;
        font-size: 16px;
    }
    
    .play-button {
        padding: 14px;
        font-size: 1rem;
    }
    
    .play-button i {
        font-size: 1rem;
    }
    
    .info-message {
        padding: 0 20px 15px;
        font-size: 0.7rem;
    }
    
    .message {
        margin: 0 20px 20px;
        font-size: 0.85rem;
    }
    
    .close-video {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .spinner {
        width: 50px;
        height: 50px;
    }
    
    .loading-text {
        font-size: 1rem;
    }
}

/* Small Mobile (max-width: 480px) */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .card {
        border-radius: 24px;
    }
    
    .teacher-profile {
        padding: 25px 15px;
    }
    
    .teacher-avatar {
        width: 80px;
        height: 80px;
    }
    
    .teacher-name {
        font-size: 1.2rem;
    }
    
    .chem-icon {
        font-size: 18px;
        gap: 20px;
    }
    
    .decorative-elements {
        gap: 20px;
    }
    
    .section-title {
        font-size: 1.1rem;
    }
    
    .input-wrapper input {
        padding: 12px 40px 12px 12px;
        font-size: 0.85rem;
        letter-spacing: 1px;
    }
    
    .play-button {
        padding: 12px;
        font-size: 0.95rem;
    }
}

/* Handle notched phones */
@supports (padding: max(0px)) {
    .close-video {
        top: max(20px, env(safe-area-inset-top));
        right: max(20px, env(safe-area-inset-right));
    }
    
    body {
        padding: max(20px, env(safe-area-inset-top)) max(15px, env(safe-area-inset-right)) max(15px, env(safe-area-inset-bottom)) max(15px, env(safe-area-inset-left));
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ==================== */
/* CUSTOM VIDEO CONTROLS */
/* ==================== */

.video-container {
    position: relative;
    width: 100%;
    height: 100%;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

#video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: none;
    cursor: pointer;
}

/* Disable native controls */
#video::-webkit-media-controls {
    display: none !important;
}

#video::-webkit-media-controls-enclosure {
    display: none !important;
}

/* Custom Controls */
.custom-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0) 100%);
    padding: 20px 25px 25px;
    opacity: 0;
    transform: translateY(100%);
    transition: all 0.3s ease;
    z-index: 10001;
}

.custom-controls.show {
    opacity: 1;
    transform: translateY(0);
}

/* Progress Container */
.progress-container {
    margin-bottom: 15px;
}

.video-progress {
    position: relative;
    height: 5px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    cursor: pointer;
    transition: height 0.2s ease;
}

.video-progress:hover {
    height: 8px;
}

.progress-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--gradient-start) 0%, var(--accent) 100%);
    border-radius: 5px;
    width: 0%;
    transition: width 0.1s linear;
}

.progress-handle {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.video-progress:hover .progress-handle {
    opacity: 1;
}

/* Controls Wrapper */
.controls-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.controls-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.controls-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.controls-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Control Buttons */
.control-btn {
    background: transparent;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.control-btn:active {
    transform: scale(0.95);
}

/* Volume Control */
.volume-container {
    position: relative;
    display: flex;
    align-items: center;
}

.volume-slider-container {
    position: absolute;
    bottom: 45px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    padding: 10px;
    border-radius: 10px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.volume-container:hover .volume-slider-container {
    opacity: 1;
    visibility: visible;
}

.volume-slider {
    width: 100px;
    height: 4px;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    outline: none;
    cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
}

.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Speed Control */
.speed-container {
    position: relative;
}

.speed-btn {
    width: auto;
    padding: 8px 15px;
    border-radius: 30px;
    gap: 5px;
    background: rgba(0, 0, 0, 0.5);
}

.speed-text {
    font-size: 0.9rem;
    font-weight: 600;
}

.speed-menu {
    position: absolute;
    bottom: 45px;
    left: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 8px 0;
    min-width: 80px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s ease;
    z-index: 10002;
}

.speed-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.speed-option {
    padding: 10px 20px;
    color: white;
    cursor: pointer;
    text-align: center;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.speed-option:hover {
    background: rgba(255, 255, 255, 0.1);
}

.speed-option.active {
    color: var(--accent);
    font-weight: bold;
}

/* Time Display */
.time-display {
    color: white;
    font-size: 0.85rem;
    font-family: monospace;
    background: rgba(0, 0, 0, 0.5);
    padding: 6px 12px;
    border-radius: 20px;
    letter-spacing: 1px;
}

/* Close Button */
.close-video {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    color: white;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10002;
}

.close-video:hover {
    background: var(--danger);
    transform: scale(1.1);
}

/* Loading Container */
.loading-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10001;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    color: white;
    font-size: 1.2rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
}

.dots {
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { opacity: 0; }
    40% { opacity: 1; }
    100% { opacity: 1; }
}

.loading-subtitle {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

/* Fullscreen adjustments */
.video-container:fullscreen {
    width: 100%;
    height: 100%;
}

.video-container:fullscreen .custom-controls {
    bottom: 0;
}

/* Mobile Responsive for Controls */
@media (max-width: 767px) {
    .custom-controls {
        padding: 15px 15px 20px;
    }
    
    .controls-wrapper {
        gap: 10px;
    }
    
    .control-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .speed-btn {
        padding: 6px 12px;
    }
    
    .speed-text {
        font-size: 0.8rem;
    }
    
    .time-display {
        font-size: 0.7rem;
        padding: 4px 8px;
    }
    
    .close-video {
        width: 35px;
        height: 35px;
        font-size: 1rem;
        top: 10px;
        right: 10px;
    }
    
    .volume-slider {
        width: 80px;
    }
}

/* Prevent text selection on controls */
.custom-controls,
.control-btn,
.speed-btn,
.close-video {
    user-select: none;
    -webkit-user-select: none;
}

/* Disable right-click on video */
#video {
    pointer-events: auto;
}

/* Loading state */
.no-scroll {
    overflow: hidden;
}


/* Force controls to always be visible */
.custom-controls {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
}

.custom-controls.hide {
    opacity: 1 !important;
    visibility: visible !important;
}

/* Make buttons more visible */
.control-btn {
    background: rgba(0, 0, 0, 0.8) !important;
    border-radius: 50% !important;
}

.control-btn:hover {
    background: var(--primary) !important;
}

/* Make custom controls always visible */
.custom-controls {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.8) 50%, rgba(0,0,0,0) 100%) !important;
}

.custom-controls.hide {
    opacity: 1 !important;
    visibility: visible !important;
}

/* Make buttons more visible */
.control-btn {
    background: rgba(0, 0, 0, 0.8) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.control-btn:hover {
    background: var(--primary) !important;
    transform: scale(1.1);
}

/* Progress bar */
.video-progress {
    cursor: pointer;
    background: rgba(255, 255, 255, 0.3);
}

.progress-fill {
    background: linear-gradient(90deg, #667eea, #f59e0b);
}