/* ========================================
   GLOBAL STYLES & VARIABLES
   ======================================== */

:root {
    --primary: #0a3a47;
    --primary-dark: #1d5a6e;
    --secondary: #0f4c5c;
    --accent-1: #FF8A4C;
    --accent-2: #FFA726;
    --accent-3: #4CAF50;
    --accent-4: #4A9FE0;
    --dark: #0a3a47;
    --darker: #05232b;
    --light: #f8f9fa;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-600: #6c757d;
    --gray-800: #343a40;
    --teal-solid: #0a3a47;
    --teal-light: #1d5a6e;
    --teal-dark: #0f4c5c;
    --teal-gradient: linear-gradient(165deg, #0a3a47 0%, #1d5a6e 40%, #0f4c5c 100%);
    --shadow-sm: 0 5px 15px rgba(0,0,0,0.1);
    --shadow-md: 0 10px 30px rgba(0,0,0,0.15);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.2);
    --shadow-primary: 0 10px 30px rgba(0,0,0,0.25);
    --shadow-primary-lg: 0 20px 50px rgba(0,0,0,0.3);
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--secondary));
    --gradient-accent: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    --border-radius-sm: 12px;
    --border-radius-md: 20px;
    --border-radius-lg: 30px;
    --border-radius-xl: 50px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    color: var(--white);
    line-height: 1.6;
    background: linear-gradient(165deg, #0a3a47 0%, #1d5a6e 40%, #0f4c5c 100%);
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   TYPOGRAPHY & SECTION HEADERS
   ======================================== */

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-subtitle {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 8px 20px;
    border-radius: var(--border-radius-lg);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
    box-shadow: var(--shadow-primary);
    text-transform: uppercase;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 15px;
    line-height: 1.2;
}

.highlight {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    color: rgba(255,255,255,0.9);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ========================================
   BUTTONS & LINKS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 30px;
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--white);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary-lg);
}

.btn-secondary {
    background: var(--teal-light);
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: var(--shadow-primary);
}

.btn-secondary:hover {
    background: var(--teal-dark);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

.btn-outline:hover {
    background: var(--gradient-accent);
    color: var(--white);
    border-color: transparent;
}

.btn-lg {
    padding: 15px 40px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* ========================================
   NAVBAR
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 1000;
    transition: all 0.3s ease;
    background: transparent;
}

.navbar.scrolled {
    background: var(--teal-solid);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    padding: 15px 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
    transition: all 0.3s ease;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    transition: color 0.3s ease;
}

.logo-text span {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.theme-toggle {
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    transition: all 0.3s ease;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: all 0.3s ease;
    border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ========================================
   PAGE LOADER
   ======================================== */

.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--teal-solid);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-circle {
    width: 80px;
    height: 80px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top: 4px solid var(--white);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

.loader-logo {
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
}

.loader-logo span {
    background: var(--white);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-accent);
    border: none;
    color: var(--white);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
    box-shadow: var(--shadow-primary);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-primary-lg);
}

.back-to-top i {
    font-size: 1.2rem;
}

.back-to-top-text {
    font-size: 0.6rem;
    font-weight: 600;
}

/* ========================================
   ANIMATIONS
   ======================================== */

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scrollWheel {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(20px); }
}

@keyframes scrollArrow {
    0% { opacity: 0; transform: rotate(45deg) translate(-5px, -5px); }
    50% { opacity: 1; }
    100% { opacity: 0; transform: rotate(45deg) translate(5px, 5px); }
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-240px * 4 - 30px * 4)); }
}

/* ========================================
   VIDEO SLIDER SECTION
   ======================================== */

.video-slider-section {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.owl-carousel.video-carousel {
    height: 100%;
}

.video-slide {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.slider-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10,58,71,0.8) 0%, rgba(15,76,92,0.6) 100%);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 1200px;
    padding: 0 20px;
    color: var(--white);
    z-index: 10;
}

.content-wrapper {
    max-width: 800px;
    animation: slideInLeft 1s ease;
}

.video-badges {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.video-badges .badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(0,0,0,0.4);
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--white);
}

.video-badges .badge i {
    color: var(--accent-1);
}

.video-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typing-text {
    display: inline-block;
    min-width: 200px;
}

.cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background: var(--white);
    animation: blink 1s infinite;
    vertical-align: middle;
}

.video-description {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.video-cta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 15px 35px;
    border-radius: var(--border-radius-xl);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    background: var(--gradient-accent);
    color: var(--white);
    box-shadow: var(--shadow-primary);
}

.cta-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.cta-primary:hover::before {
    left: 100%;
}

.cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 15px 35px;
    border-radius: var(--border-radius-xl);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    background: rgba(0,0,0,0.4);
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: var(--shadow-primary);
}

.cta-secondary:hover {
    background: rgba(0,0,0,0.5);
    transform: translateY(-3px);
}

.cta-badge {
    background: #FFD700;
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
}

.video-controls {
    position: absolute;
    bottom: 50px;
    right: 50px;
    display: flex;
    gap: 15px;
    z-index: 20;
}

.video-controls button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: rgba(0,0,0,0.4);
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: var(--shadow-primary);
}

.video-controls button:hover {
    background: rgba(0,0,0,0.6);
    transform: scale(1.1);
}

.slider-controls {
    position: absolute;
    bottom: 50px;
    left: 50px;
    z-index: 20;
}

.custom-nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.custom-nav button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.3);
    background: rgba(0,0,0,0.4);
    color: var(--white);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
}

.custom-nav button:hover {
    background: rgba(0,0,0,0.6);
    border-color: var(--white);
}

.slide-counter {
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 600;
}

.scroll-indicator {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    text-align: center;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 20px;
    margin: 0 auto 10px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--white);
    border-radius: 2px;
    animation: scrollWheel 2s infinite;
}

.arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.arrow span {
    display: block;
    width: 10px;
    height: 10px;
    border-bottom: 2px solid var(--white);
    border-right: 2px solid var(--white);
    transform: rotate(45deg);
    animation: scrollArrow 2s infinite;
    opacity: 0;
}

.arrow span:nth-child(1) { animation-delay: 0s; }
.arrow span:nth-child(2) { animation-delay: 0.2s; }
.arrow span:nth-child(3) { animation-delay: 0.4s; }

/* ========================================
   WHY CHOOSE US CARDS
   ======================================== */

.features-glass {
    padding: 100px 0;
    background: linear-gradient(165deg, #0a3a47 0%, #1d5a6e 40%, #0f4c5c 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 50px;
    background: linear-gradient(165deg, #0a3a47 0%, #1d5a6e 40%, #0f4c5c 100%);
    
}

.glass-card {
    background: var(--teal-light);
    border-radius: var(--border-radius-md);
    padding: 40px 30px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: var(--shadow-primary);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.glass-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-primary-lg);
    border-color: rgba(255,255,255,0.2);
    background: var(--teal-dark);
}

.glass-card:hover::before {
    transform: scaleX(1);
}

.glass-card.partnership-card {
    background: var(--teal-light);
    border-left: 4px solid var(--accent-1);
}

.card-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
    background: var(--gradient-accent);
}

.glass-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
}

.card-icon i {
    font-size: 36px;
    color: var(--white);
}

.glass-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--white);
    line-height: 1.3;
}

.glass-card p {
    color: rgba(255,255,255,0.9);
    line-height: 1.7;
    margin-bottom: 20px;
    font-size: 1rem;
    flex-grow: 1;
}

.free-badge-card {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 30px;
    margin-left: 10px;
    vertical-align: middle;
    animation: pulse 2s infinite;
}

.partnership-badge {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 30px;
    margin-left: 8px;
    vertical-align: middle;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.tag {
    background: rgba(0,0,0,0.3);
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 5px 15px;
    border-radius: 30px;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
}

.tag:hover {
    background: var(--gradient-accent);
    color: var(--white);
    transform: translateY(-2px);
}

.card-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    margin-top: 10px;
}

.card-link:hover {
    gap: 12px;
    color: var(--accent-1);
}

/* ========================================
   ACHIEVEMENT COUNTER
   ======================================== */

.achievement-counter {
    padding: 80px 0;
    background: var(--teal-dark);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.achievement-counter::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

.counter-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.counter-item {
    padding: 20px;
    background: var(--teal-light);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255,255,255,0.1);
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
}

.counter-item:hover {
    transform: translateY(-10px);
    background: var(--teal-dark);
    box-shadow: var(--shadow-primary-lg);
    border-color: rgba(255,255,255,0.2);
}

.counter-item i {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--accent-1);
}

.counter-number {
    font-size: 3.5rem;
    font-weight: 800;
    display: inline-block;
    line-height: 1;
}

.counter-plus {
    font-size: 2.5rem;
    font-weight: 800;
    margin-left: 5px;
    display: inline-block;
    color: var(--accent-1);
}

.counter-item p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-top: 15px;
    font-weight: 500;
}

/* ========================================
   COURSES SECTION
   ======================================== */

.courses-premium {
    padding: 100px 0;
    background: linear-gradient(165deg, #0a3a47 0%, #1d5a6e 40%, #0f4c5c 100%);
    
}

.course-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 30px;
    border: 2px solid rgba(255,255,255,0.2);
    background: var(--teal-light);
    color: var(--white);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    box-shadow: var(--shadow-primary);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-accent);
    color: var(--white);
    border-color: transparent;
    box-shadow: var(--shadow-primary-lg);
    transform: translateY(-2px);
}

.free-filter {
    background: var(--gradient-accent);
    color: var(--white);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    margin-left: 5px;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.course-card {
    background: var(--teal-light);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    border: 1px solid rgba(255,255,255,0.1);
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-primary-lg);
    border-color: rgba(255,255,255,0.2);
    background: var(--teal-dark);
}

.course-media {
    position: relative;
    padding: 40px 20px 30px;
    text-align: center;
    background: rgba(0,0,0,0.2);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.course-icon {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    color: var(--white);
    font-size: 36px;
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
}

.course-card:hover .course-icon {
    transform: scale(1.1) rotate(5deg);
}

.course-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 6px 18px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-primary);
}

.course-badge.free {
    background: var(--gradient-accent);
    color: var(--white);
}

.course-badge.professional {
    background: linear-gradient(135deg, #4CAF50, #2E7D32);
    color: var(--white);
}

.course-badge.advanced {
    background: linear-gradient(135deg, #003366, #001a33);
    color: var(--white);
}

.course-content {
    padding: 30px 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.course-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--white);
}

.course-content p {
    color: rgba(255,255,255,0.9);
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
    font-size: 0.95rem;
}

.course-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--white);
    flex-wrap: wrap;
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0,0,0,0.3);
    padding: 5px 15px;
    border-radius: 30px;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
}

.course-card:hover .course-meta span {
    background: rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.2);
}

.course-meta span i {
    color: var(--accent-1);
}

.course-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    margin-top: auto;
    padding: 12px 0 0;
    border-top: 1px solid rgba(255,255,255,0.2);
}

.course-link:hover {
    gap: 12px;
    color: var(--accent-1);
}

.course-card.featured {
    border: 2px solid var(--accent-1);
    position: relative;
}

.course-card.featured::before {
    content: '⭐ Featured';
    position: absolute;
    top: -12px;
    left: 20px;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 4px 20px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 2;
    box-shadow: var(--shadow-primary);
}

.view-all-container {
    text-align: center;
    margin-top: 60px;
}

.btn-view-all {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 15px 45px;
    background: var(--gradient-accent);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
    font-size: 1.1rem;
}

.btn-view-all:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-primary-lg);
    gap: 15px;
}

/* ========================================
   MEDIA GALLERY SECTION
   ======================================== */

.media-showcase {
    padding: 100px 0;
    background: linear-gradient(165deg, #0a3a47 0%, #1d5a6e 40%, #0f4c5c 100%);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(220px, auto);
    gap: 25px;
    margin-top: 50px;
}

.gallery-item-large {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-primary-lg);
    border-color: rgba(255,255,255,0.2);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 220px;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.gallery-item:hover .video-thumbnail img {
    transform: scale(1.1);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 28px;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    z-index: 2;
    box-shadow: var(--shadow-lg);
}

.gallery-item:hover .play-button {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.play-button:hover {
    background: var(--gradient-accent);
    color: var(--white);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--white);
    padding: 25px;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.gallery-overlay h3 i {
    color: var(--accent-1);
}

.gallery-overlay p {
    font-size: 0.95rem;
    margin-bottom: 15px;
    opacity: 0.9;
}

.watch-link {
    color: var(--accent-1);
    text-decoration: none;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    font-weight: 600;
}

.watch-link:hover {
    gap: 12px;
    color: var(--white);
}

/* ========================================
   PARTNERS SECTION
   ======================================== */

.partners-section {
    padding: 80px 0;
    background: var(--teal-dark);
    overflow: hidden;
}

.partners-slider {
    width: 100%;
    overflow: hidden;
    padding: 30px 0;
}

.slider-track {
    display: flex;
    animation: scroll 40s linear infinite;
    gap: 30px;
}

.partner-logo-card {
    flex: 0 0 auto;
    width: 240px;
    text-align: center;
    padding: 35px 25px;
    background: var(--teal-light);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
}

.partner-logo-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: var(--shadow-primary-lg);
    border-color: rgba(255,255,255,0.2);
    background: var(--teal-dark);
}

.logo-wrapper {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
    background: var(--gradient-accent);
}

.partner-logo-card:hover .logo-wrapper {
    transform: scale(1.1) rotate(8deg);
    box-shadow: var(--shadow-primary-lg);
}

.logo-wrapper i {
    font-size: 3rem;
    color: var(--white);
}

.partner-logo-card span {
    font-weight: 700;
    color: var(--white);
    font-size: 1.2rem;
    display: block;
    transition: var(--transition);
}

.partner-logo-card:hover span {
    color: var(--accent-1);
}

.partners-slider:hover .slider-track {
    animation-play-state: paused;
}

/* ========================================
   RESEARCH SECTION
   ======================================== */

.research-section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    background: linear-gradient(165deg, #0a3a47 0%, #1d5a6e 40%, #0f4c5c 100%);
}

.research-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
    animation: rotate 40s linear infinite;
}

.research-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.research-content {
    padding-right: 30px;
}

.research-badge {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 8px 25px;
    border-radius: var(--border-radius-lg);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 25px;
    box-shadow: var(--shadow-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.research-content h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 25px;
    color: var(--white);
    line-height: 1.2;
}

.research-content > p {
    color: rgba(255,255,255,0.9);
    line-height: 1.8;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.research-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin: 40px 0;
}

.research-feature-card {
    background: var(--teal-light);
    border-radius: var(--border-radius-md);
    padding: 30px 25px;
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.1);
}

.research-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--gradient-accent);
    transition: height 0.4s ease;
}

.research-feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-primary-lg);
    background: var(--teal-dark);
    border-color: rgba(255,255,255,0.2);
}

.research-feature-card:hover::before {
    height: 100%;
}

.feature-card-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
}

.research-feature-card:hover .feature-card-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card-icon i {
    font-size: 28px;
    color: var(--white);
}

.research-feature-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--white);
}

.research-feature-card p {
    color: rgba(255,255,255,0.9);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

.feature-card-number {
    position: absolute;
    bottom: 15px;
    right: 20px;
    font-size: 3.5rem;
    font-weight: 800;
    color: rgba(255,255,255,0.05);
    line-height: 1;
}

.research-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 15px 40px;
    background: var(--gradient-accent);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
    font-size: 1.1rem;
    margin-top: 20px;
}

.research-cta:hover {
    gap: 18px;
    transform: translateY(-5px);
    box-shadow: var(--shadow-primary-lg);
}

.research-visual {
    position: relative;
    height: 450px;
    background: var(--teal-light);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.1);
}

.research-animation {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
}

.research-animation i {
    font-size: 5rem;
    color: var(--accent-1);
    opacity: 0.3;
    animation: float 4s ease-in-out infinite;
}

.research-animation i:nth-child(1) { animation-delay: 0s; }
.research-animation i:nth-child(2) { animation-delay: 0.5s; }
.research-animation i:nth-child(3) { animation-delay: 1s; }

/* ========================================
   RESEARCH TEAM SECTION
   ======================================== */

.testimonials-premium {
    padding: 100px 0;
    background: var(--teal-dark);
    position: relative;
    overflow: hidden;
}

.research-partners-showcase {
    text-align: center;
    margin-bottom: 60px;
}

.partner-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.research-partner-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 35px;
    background: var(--teal-light);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-primary);
    font-weight: 600;
    color: var(--white);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
    font-size: 1.1rem;
}

.research-partner-badge i {
    font-size: 1.3rem;
}

.research-partner-badge:nth-child(1) i { color: var(--accent-1); }
.research-partner-badge:nth-child(2) i { color: var(--accent-4); }
.research-partner-badge:nth-child(3) i { color: var(--accent-1); }
.research-partner-badge:nth-child(4) i { color: var(--accent-1); }

.research-partner-badge:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-primary-lg);
    background: var(--teal-dark);
    border-color: rgba(255,255,255,0.2);
}

.research-activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.activity-card {
    background: var(--teal-light);
    border-radius: var(--border-radius-md);
    padding: 45px 35px;
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255,255,255,0.1);
}

.activity-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-1), var(--accent-4));
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.activity-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-primary-lg);
    background: var(--teal-dark);
    border-color: rgba(255,255,255,0.2);
}

.activity-card:hover::before {
    transform: translateX(0);
}

.activity-icon {
    width: 90px;
    height: 90px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
    background: var(--gradient-accent);
}

.activity-card:hover .activity-icon {
    transform: scale(1.1) rotate(5deg);
}

.activity-icon i {
    font-size: 42px;
    color: var(--white);
}

.activity-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--white);
}

.activity-card p {
    color: rgba(255,255,255,0.9);
    line-height: 1.8;
    margin-bottom: 25px;
    flex-grow: 1;
    font-size: 1rem;
}

.activity-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    color: var(--white);
    font-size: 0.95rem;
    flex-wrap: wrap;
}

.activity-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,0,0,0.3);
    padding: 8px 20px;
    border-radius: 40px;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
}

.activity-card:hover .activity-meta span {
    background: rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.2);
}

.activity-meta span i {
    color: var(--accent-1);
}

.activity-link {
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    margin-top: auto;
    padding: 15px 0 0;
    border-top: 2px solid rgba(255,255,255,0.2);
    color: var(--white);
    font-size: 1.1rem;
}

.activity-link:hover {
    gap: 15px;
    color: var(--accent-1);
}

.join-team-container {
    margin-top: 80px;
    background: linear-gradient(165deg, #0a3a47 0%, #1d5a6e 40%, #0f4c5c 100%);
}

.join-team-card {
   
    border-radius: var(--border-radius-lg);
    padding: 60px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    color: var(--white);
    box-shadow: var(--shadow-primary-lg);
    position: relative;
    overflow: hidden;
}

.join-team-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

.join-team-content {
    position: relative;
    z-index: 1;
}

.join-team-content h3 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.join-team-content h3 i {
    color: #FFD700;
}

.join-team-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.95;
    line-height: 1.6;
}

.benefits-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 35px;
}

.benefits-list span {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    background: rgba(0,0,0,0.3);
    padding: 10px 20px;
    border-radius: 40px;
    border: 1px solid rgba(255,255,255,0.1);
}

.benefits-list i {
    color: #FFD700;
}

.join-button {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 18px 45px;
    background: var(--white);
    color: var(--primary);
    text-decoration: none;
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    font-size: 1.2rem;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.join-button:hover {
    gap: 20px;
    transform: translateY(-5px);
    box-shadow: var(--shadow-primary-lg);
    background: var(--gray-100);
}

.join-team-visual {
    position: relative;
    height: 300px;
    z-index: 1;
}

.floating-icons {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-icons i {
    position: absolute;
    font-size: 4rem;
    color: rgba(255,255,255,0.2);
    animation: float 4s ease-in-out infinite;
}

.floating-icons i:nth-child(1) { top: 20%; left: 10%; }
.floating-icons i:nth-child(2) { top: 50%; left: 30%; animation-delay: 0.5s; }
.floating-icons i:nth-child(3) { top: 30%; left: 70%; animation-delay: 1s; }
.floating-icons i:nth-child(4) { top: 70%; left: 50%; animation-delay: 1.5s; }

/* ========================================
   TEAM CARDS
   ======================================== */

.team-card {
    text-align: center;
    padding: 40px 30px;
    border-radius: var(--border-radius-md) !important;
    background: var(--teal-light);
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1) !important;
    height: 100%;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-primary-lg);
    border-color: rgba(255,255,255,0.2) !important;
    background: var(--teal-dark);
}

.team-image {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    margin: 0 auto 25px;
    object-fit: cover;
    border: 5px solid var(--accent-1);
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
}

.team-card:hover .team-image {
    transform: scale(1.05);
    border-color: var(--accent-2);
}

.team-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--white);
}

.team-card p {
    color: var(--accent-1);
    font-weight: 500;
    margin-bottom: 20px;
    font-size: 1rem;
}

.team-social {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.team-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0,0,0,0.3);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    text-decoration: none;
    font-size: 1.1rem;
    border: 1px solid rgba(255,255,255,0.1);
}

.team-social a:hover {
    background: var(--gradient-accent);
    color: var(--white);
    transform: translateY(-5px);
    box-shadow: var(--shadow-primary);
}

/* ========================================
   STAT CARDS
   ======================================== */

.stat-card {
    background: var(--teal-light);
    color: var(--white);
    border-radius: var(--border-radius-md);
    padding: 35px 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
    border: 1px solid rgba(255,255,255,0.1);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    opacity: 0;
    transform: scale(0.5);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-primary-lg);
    background: var(--teal-dark);
}

.stat-card:hover::before {
    opacity: 1;
    transform: scale(1);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 10px;
    line-height: 1;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* ========================================
   TESTIMONIAL CARDS
   ======================================== */

.testimonial-card {
    background: var(--teal-light);
    border-radius: var(--border-radius-md);
    padding: 40px;
    position: relative;
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
    height: 100%;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-primary-lg);
    background: var(--teal-dark);
    border-color: rgba(255,255,255,0.2);
}

.testimonial-quote {
    position: absolute;
    top: 30px;
    right: 35px;
    font-size: 5rem;
    color: rgba(255,255,255,0.05);
    transition: var(--transition);
}

.testimonial-card:hover .testimonial-quote {
    color: rgba(255,255,255,0.1);
    transform: scale(1.1);
}

.testimonial-avatar {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent-1);
    transition: var(--transition);
    box-shadow: var(--shadow-primary);
}

.testimonial-card:hover .testimonial-avatar {
    transform: scale(1.05);
    box-shadow: var(--shadow-primary-lg);
}

.rating {
    color: #FFD700;
    margin-top: 5px;
}

.rating i {
    margin-right: 3px;
}

/* ========================================
   PRICING CARDS
   ======================================== */

.pricing-card {
    text-align: center;
    padding: 45px 35px;
    border-radius: var(--border-radius-md);
    background: var(--teal-light);
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-primary-lg);
    background: var(--teal-dark);
    border-color: rgba(255,255,255,0.2);
}

.pricing-card.featured {
    background: var(--gradient-accent);
    color: var(--white);
    transform: scale(1.05);
    border: none;
    box-shadow: var(--shadow-primary-lg);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
    box-shadow: var(--shadow-primary-lg);
}

.pricing-card h3 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--white);
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 20px 0;
    line-height: 1;
    color: var(--white);
}

.price small {
    font-size: 1rem;
    opacity: 0.7;
    font-weight: 400;
}

.pricing-card ul {
    list-style: none;
    padding: 0;
    margin: 25px 0;
    flex-grow: 1;
}

.pricing-card ul li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--white);
}

.pricing-card ul li i {
    color: var(--accent-1);
}

.pricing-card.featured ul li i {
    color: #FFD700;
}

.pricing-card .btn {
    margin-top: auto;
    padding: 15px 35px;
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    transition: var(--transition);
    font-size: 1.1rem;
}

.pricing-card.featured .btn {
    background: var(--white);
    color: var(--primary);
    border: none;
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured .btn:hover {
    transform: scale(1.05);
    background: var(--gray-100);
}

/* ========================================
   BLOG CARDS
   ======================================== */

.blog-card {
    height: 100%;
    border-radius: var(--border-radius-md) !important;
    overflow: hidden;
    background: var(--teal-light);
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1) !important;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-primary-lg);
    background: var(--teal-dark);
    border-color: rgba(255,255,255,0.2) !important;
}

.blog-image {
    height: 240px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.blog-card:hover .blog-image {
    transform: scale(1.1);
}

.blog-meta {
    display: flex;
    gap: 15px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 15px;
}

.blog-meta i {
    color: var(--accent-1);
}

.blog-card .card-body {
    padding: 25px;
}

.blog-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--white);
    line-height: 1.4;
    transition: var(--transition);
}

.blog-card:hover h3 {
    color: var(--accent-1);
}

.blog-card .card-text {
    color: rgba(255,255,255,0.9);
    line-height: 1.7;
    margin-bottom: 20px;
}

/* ========================================
   ACHIEVEMENT CARDS
   ======================================== */

.achievement-card {
    text-align: center;
    padding: 30px 25px;
    border-radius: var(--border-radius-md) !important;
    background: var(--teal-light);
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1) !important;
    height: 100%;
}

.achievement-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-primary-lg);
    background: var(--teal-dark);
    border-color: rgba(255,255,255,0.2) !important;
}

.achievement-icon {
    font-size: 3rem;
    color: var(--accent-1);
    margin-bottom: 20px;
    transition: var(--transition);
}

.achievement-card:hover .achievement-icon {
    transform: scale(1.2) rotate(8deg);
    color: var(--accent-2);
}

.achievement-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--white);
}

.achievement-card p {
    color: rgba(255,255,255,0.9);
    margin: 0;
    font-size: 0.95rem;
}

/* ========================================
   LIGHTBOX
   ======================================== */

.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.95);
    z-index: 9999;
    display: none;
    justify-content: center;
    align-items: center;
}

.lightbox-content {
    position: relative;
    width: 90%;
    max-width: 1000px;
    aspect-ratio: 16/9;
}

.lightbox-video {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
}

.lightbox-close {
    position: absolute;
    top: -45px;
    right: -45px;
    width: 45px;
    height: 45px;
    background: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.lightbox-close:hover {
    transform: rotate(90deg);
    background: #ff4444;
    color: var(--white);
}

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

@media (max-width: 992px) {
    .video-title {
        font-size: 3rem;
    }
    
    .research-container {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .research-content {
        padding-right: 0;
    }
    
    .research-visual {
        height: 350px;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .join-team-card {
        grid-template-columns: 1fr;
        padding: 50px;
        gap: 30px;
    }
    
    .join-team-visual {
        height: 200px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--teal-solid);
        flex-direction: column;
        padding: 100px 40px;
        transition: right 0.3s ease;
        box-shadow: var(--shadow-lg);
        border-left: 1px solid rgba(255,255,255,0.1);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        color: var(--white);
        font-size: 1.1rem;
    }

    .hamburger {
        display: flex;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .counter-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .counter-number {
        font-size: 2.5rem;
    }
    
    .counter-item i {
        font-size: 2.5rem;
    }
    
    .video-title {
        font-size: 2rem;
    }
    
    .video-description {
        font-size: 1.1rem;
    }
    
    .video-badges {
        flex-direction: column;
        gap: 10px;
    }
    
    .video-cta {
        flex-direction: column;
    }
    
    .cta-primary,
    .cta-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .slider-controls {
        bottom: 20px;
        left: 20px;
    }
    
    .video-controls {
        bottom: 20px;
        right: 20px;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .course-filters {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 100%;
        max-width: 280px;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-item-large {
        grid-column: span 1;
        grid-row: span 1;
    }
    
    .partner-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .research-partner-badge {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .research-activities-grid {
        grid-template-columns: 1fr;
    }
    
    .benefits-list {
        grid-template-columns: 1fr;
    }
    
    .lightbox-content {
        width: 95%;
    }
    
    .lightbox-close {
        top: -40px;
        right: 0;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
    }
    
    .research-features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .counter-grid {
        grid-template-columns: 1fr;
    }

    .partner-logos {
        gap: 25px;
    }

    .partner-logo {
        width: calc(50% - 25px);
    }

    .join-team-card {
        padding: 40px 25px;
    }

    .join-team-content h3 {
        font-size: 1.8rem;
    }

    .benefits-list span {
        font-size: 0.9rem;
    }
}