/* ============================================
   AI Tech College - Main Stylesheet
   Modern, Dark-themed, AI-inspired design
   ============================================ */

/* === CSS Variables === */
:root {
    --primary: #6C63FF;
    --primary-light: #8B83FF;
    --primary-dark: #5A52D5;
    --accent: #00D4AA;
    --accent-light: #33DDBB;
    --accent-dark: #00B892;

    --bg-dark: #0A0A1A;
    --bg-darker: #060612;
    --bg-card: #12122A;
    --bg-card-hover: #1A1A3A;
    --bg-glass: rgba(18, 18, 42, 0.8);

    --text-primary: #FFFFFF;
    --text-secondary: #B0B0CC;
    --text-muted: #6B6B8D;

    --border: rgba(108, 99, 255, 0.15);
    --border-hover: rgba(108, 99, 255, 0.4);

    --gradient-primary: linear-gradient(135deg, #6C63FF 0%, #00D4AA 100%);
    --gradient-dark: linear-gradient(135deg, #0A0A1A 0%, #1A1A3A 100%);
    --gradient-card: linear-gradient(145deg, rgba(108, 99, 255, 0.05) 0%, rgba(0, 212, 170, 0.05) 100%);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.15);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    --container-width: 1280px;
    --nav-height: 80px;
}

/* === Reset & Base === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-secondary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    color: var(--text-primary);
    line-height: 1.2;
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    display: block;
}

ul { list-style: none; }

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 120px 0;
    position: relative;
}

/* === Gradient Text === */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === Preloader === */
#preloader {
    position: fixed;
    inset: 0;
    background: var(--bg-darker);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s, visibility 0.5s;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    position: relative;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader-ring {
    position: absolute;
    inset: 0;
    border: 3px solid transparent;
    border-top-color: var(--primary);
    border-right-color: var(--accent);
    border-radius: 50%;
    animation: loaderSpin 1s linear infinite;
}

.loader-text {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 18px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* === Custom Cursor === */
.cursor-dot, .cursor-outline {
    pointer-events: none;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    border-radius: 50%;
    transition: opacity 0.3s;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
}

.cursor-outline {
    width: 36px;
    height: 36px;
    border: 2px solid rgba(108, 99, 255, 0.4);
    transition: width 0.3s, height 0.3s, border-color 0.3s;
}

body:hover .cursor-dot,
body:hover .cursor-outline {
    opacity: 1;
}

@media (max-width: 768px) {
    .cursor-dot, .cursor-outline { display: none; }
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-xl);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(108, 99, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108, 99, 255, 0.5);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    border-color: var(--primary);
    background: rgba(108, 99, 255, 0.1);
}

.btn-white {
    background: white;
    color: var(--bg-dark);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.3);
}

.btn-sm { padding: 10px 20px; font-size: 13px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-full { width: 100%; justify-content: center; }

.btn-play {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(108, 99, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
    z-index: 101;
}

.logo-text { letter-spacing: -0.5px; }
.logo-highlight { color: var(--accent); }

.logo-svg {
    height: 70px;
    width: auto;
    transition: var(--transition);
}

.nav-logo:hover .logo-svg {
    filter: brightness(1.1);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 10px 18px;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.05); }
.nav-link i { font-size: 10px; transition: var(--transition); }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    z-index: 101;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 4px;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.lang-btn.active { color: var(--text-primary); background: rgba(255, 255, 255, 0.1); }
.lang-divider { color: var(--text-muted); font-size: 12px; }

.btn-nav {
    padding: 10px 24px;
    font-size: 14px;
}

/* Dropdown / Mega Menu */
.nav-item { position: relative; }

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 100;
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-item:hover .nav-link i { transform: rotate(180deg); }

/* Small dropdown menu (non-mega) */
.dropdown-menu:not(.mega-menu) {
    min-width: 260px;
    padding-top: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 12px 0;
    overflow: hidden;
}

.dropdown-menu:not(.mega-menu) a {
    display: block;
    padding: 11px 24px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.dropdown-menu:not(.mega-menu) a:hover {
    background: rgba(108, 99, 255, 0.08);
    color: var(--accent);
    padding-left: 28px;
}

.mega-menu {
    width: 780px;
    padding-top: 16px;
}

.mega-menu-inner {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 32px;
    box-shadow: var(--shadow-lg);
}

.mega-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.mega-sub { margin-bottom: 16px; }

.mega-sub h5 {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.mega-sub a {
    display: block;
    padding: 6px 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.mega-sub a:hover { color: var(--accent); padding-left: 4px; }

.mega-cta { min-width: 200px; }

.mega-cta-card {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
}

.mega-cta-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    margin: 0 auto 16px;
}

.mega-cta-card h4 { font-size: 16px; margin-bottom: 8px; }
.mega-cta-card p { font-size: 13px; margin-bottom: 16px; }

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: var(--nav-height);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% 20%, rgba(108, 99, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 70% 60%, rgba(0, 212, 170, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 50% 30% at 20% 80%, rgba(108, 99, 255, 0.08) 0%, transparent 50%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(108, 99, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 99, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black, transparent);
    -webkit-mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black, transparent);
}

.hero-particles {
    position: absolute;
    inset: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 0 24px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    background: rgba(108, 99, 255, 0.1);
    border: 1px solid rgba(108, 99, 255, 0.2);
    border-radius: 100px;
    font-size: 14px;
    color: var(--primary-light);
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: clamp(42px, 7vw, 80px);
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.hero-line { display: block; }

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-ctas {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-item { text-align: center; }

.stat-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 42px;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-plus {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 30px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: var(--gradient-primary);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* === Partners Banner === */
.partners-banner {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    overflow: hidden;
}

.partners-track {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.partner-item { text-align: center; }

.partner-label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.partner-item strong {
    color: var(--text-primary);
    font-size: 14px;
}

.partner-divider {
    color: var(--primary);
    font-size: 10px;
    opacity: 0.5;
}

/* === Section Headers === */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(108, 99, 255, 0.1);
    border: 1px solid rgba(108, 99, 255, 0.2);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.section-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* === Features Grid (About) === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-card);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.feature-card:hover::before { opacity: 1; }

.feature-icon {
    position: relative;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--primary-light);
}

.icon-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0.1;
    border-radius: var(--radius-md);
}

.feature-card h3 {
    position: relative;
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    position: relative;
    font-size: 15px;
    line-height: 1.6;
}

/* === Programs Section === */
.programs-section {
    background: var(--bg-darker);
}

.program-tabs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.tab-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-secondary);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    border-color: var(--primary);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.program-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.program-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.program-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.program-card:hover::after { transform: scaleX(1); }

.program-badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(108, 99, 255, 0.15);
    color: var(--primary-light);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.program-badge.diploma {
    background: rgba(0, 212, 170, 0.15);
    color: var(--accent);
}

.program-badge.hot {
    background: rgba(255, 107, 53, 0.15);
    color: #FF6B35;
}

.program-icon {
    font-size: 28px;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.program-school {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.program-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    line-height: 1.3;
}

.program-card p {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.program-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.program-tags span {
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 100px;
    font-size: 12px;
    color: var(--text-muted);
}

.program-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-light);
}

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

.program-card.hidden {
    display: none;
}

/* === Career Section === */
.career-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.career-content .section-tag { margin-bottom: 16px; }
.career-content .section-title { text-align: left; margin-bottom: 16px; font-size: clamp(28px, 3.5vw, 42px); }
.career-content > p { font-size: 16px; margin-bottom: 32px; line-height: 1.7; }

.career-features { display: flex; flex-direction: column; gap: 24px; }

.career-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.cf-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(108, 99, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--primary-light);
    flex-shrink: 0;
}

.career-feature h4 { font-size: 16px; margin-bottom: 4px; }
.career-feature p { font-size: 14px; }

.career-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.career-card-stack {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.floating-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-glow); }

.floating-card i {
    font-size: 24px;
    color: var(--primary-light);
}

.floating-card span {
    font-size: 14px;
    color: var(--text-secondary);
}

.floating-card strong {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-left: auto;
}

.fc-1 { top: 20px; left: 0; right: 40px; animation: float1 6s ease-in-out infinite; }
.fc-2 { top: 150px; left: 40px; right: 0; animation: float2 7s ease-in-out infinite; }
.fc-3 { top: 280px; left: 10px; right: 20px; animation: float3 8s ease-in-out infinite; }

@keyframes float1 { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes float2 { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-15px); } }
@keyframes float3 { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* === Infrastructure Section === */
.infra-section {
    background: var(--bg-darker);
}

.infra-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.infra-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
}

.infra-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.infra-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    margin: 0 auto 20px;
}

.infra-card h3 { font-size: 18px; margin-bottom: 10px; }
.infra-card p { font-size: 14px; }

/* === News Section === */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.news-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.news-img {
    height: 200px;
    background: var(--gradient-card);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.news-img-placeholder {
    font-size: 48px;
    color: rgba(108, 99, 255, 0.3);
}

.news-date {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: var(--bg-glass);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.news-body { padding: 24px; }

.news-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(0, 212, 170, 0.1);
    color: var(--accent);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.news-body h3 {
    font-size: 18px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-body p { font-size: 14px; margin-bottom: 16px; }

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-light);
}

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

/* === CTA Section === */
.cta-section {
    background: var(--gradient-primary);
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
}

.cta-particles {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
}

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

.cta-content h2 {
    font-size: clamp(28px, 4vw, 42px);
    margin-bottom: 16px;
    color: white;
}

.cta-content p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

/* === Contact Section === */
.contact-section {
    background: var(--bg-darker);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: flex-start;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 16px;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--border-hover);
}

.contact-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.contact-card-header i {
    font-size: 18px;
    color: var(--primary-light);
}

.contact-card-header h3 { font-size: 18px; }
.contact-card p { font-size: 14px; margin-bottom: 8px; }

.contact-phone, .contact-email {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-weight: 600;
    font-size: 15px;
}

.contact-phone:hover, .contact-email:hover { color: var(--accent-light); }

.contact-socials {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.contact-socials a {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 18px;
    transition: var(--transition);
}

.contact-socials a:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: rgba(108, 99, 255, 0.1);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-form { display: flex; flex-direction: column; gap: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 16px 0 8px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    outline: none;
    transition: var(--transition);
}

.form-group label {
    position: absolute;
    top: 16px;
    left: 0;
    font-size: 15px;
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -4px;
    font-size: 12px;
    color: var(--primary-light);
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line,
.form-group select:focus ~ .form-line {
    transform: scaleX(1);
}

.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-card); color: var(--text-primary); }

.form-group textarea { resize: vertical; min-height: 100px; }

/* === Footer === */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-tagline {
    font-size: 16px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 12px;
}

.footer-desc { font-size: 14px; line-height: 1.6; }

.footer-col h4 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.footer-col li { margin-bottom: 10px; }

.footer-col a {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-col a:hover { color: var(--accent); }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}

.footer-links a { color: var(--text-muted); }
.footer-links a:hover { color: var(--primary-light); }

/* === Back to Top === */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover { transform: translateY(-4px); }

/* === WhatsApp Float Button === */
.whatsapp-float {
    position: fixed;
    bottom: 96px;
    right: 32px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25D366;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    animation: whatsappPulse 2s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.6);
    color: white;
}

@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* === Cookie Consent === */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 20px 24px;
    z-index: 9000;
    transform: translateY(100%);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.cookie-consent.visible {
    transform: translateY(0);
}

.cookie-consent.hidden {
    transform: translateY(100%);
}

.cookie-content {
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.cookie-text {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 280px;
}

.cookie-text i {
    font-size: 24px;
    color: var(--accent);
    flex-shrink: 0;
}

.cookie-text p {
    font-size: 14px;
    line-height: 1.5;
}

.cookie-text a {
    color: var(--primary-light);
    text-decoration: underline;
}

.cookie-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

/* === Form Response Messages === */
.form-message {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    display: none;
    align-items: center;
    gap: 10px;
}

.form-message.success {
    display: flex;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    color: var(--accent);
}

.form-message.error {
    display: flex;
    background: rgba(255, 71, 87, 0.1);
    border: 1px solid rgba(255, 71, 87, 0.3);
    color: #FF4757;
}

/* === AOS Animations (custom) === */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-down"] {
    opacity: 0;
    transform: translateY(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-down"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-right"] {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-right"].aos-animate {
    opacity: 1;
    transform: translateX(0);
}

[data-aos="fade-left"] {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-left"].aos-animate {
    opacity: 1;
    transform: translateX(0);
}

[data-aos="zoom-in"] {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="zoom-in"].aos-animate {
    opacity: 1;
    transform: scale(1);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .mega-menu { width: 600px; }
    .mega-menu-inner { grid-template-columns: 1fr 1fr; }
    .mega-cta { display: none; }
    .career-wrapper { grid-template-columns: 1fr; gap: 48px; }
    .career-visual { order: -1; }
    .career-card-stack { height: 300px; max-width: 350px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    :root { --nav-height: 70px; }

    .section { padding: 80px 0; }

    .nav-toggle { display: flex; }

    .nav-menu {
        position: fixed;
        inset: 0;
        background: var(--bg-darker);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 16px;
        transform: translateX(100%);
        transition: var(--transition);
        z-index: 100;
    }

    .nav-menu.active { transform: translateX(0); }

    .nav-link { font-size: 20px; padding: 12px 24px; }

    .dropdown-menu { display: none; }

    .btn-nav { display: none; }

    .logo-svg {
        height: 45px;
        width: auto;
    }

    .nav-logo {
        z-index: 101;
        max-width: 200px;
    }

    .hero-stats { gap: 24px; }
    .stat-number { font-size: 32px; }
    .stat-divider { display: none; }

    .programs-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }

    .contact-wrapper { grid-template-columns: 1fr; }
    .contact-form-wrapper { padding: 24px; }
    .form-row { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

    .career-card-stack { height: 250px; }
    .floating-card { padding: 16px; }
    .floating-card strong { font-size: 22px; }
}

@media (max-width: 480px) {
    .hero h1 { letter-spacing: -1px; }
    .hero-ctas { flex-direction: column; }
    .hero-ctas .btn { width: 100%; justify-content: center; }
    .program-tabs { gap: 6px; }
    .tab-btn { padding: 8px 16px; font-size: 13px; }
}

/* ============================================
   Image Additions
   ============================================ */

/* Program card images */
.program-img {
    height: 160px;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    margin: -32px -28px 20px -28px;
}
.program-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.program-card:hover .program-img img {
    transform: scale(1.05);
}

/* Infrastructure card images */
.infra-img {
    height: 180px;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    margin: -36px -28px 20px -28px;
}
.infra-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* News card images */
.news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

/* Partner logos */
.partner-logo {
    max-height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.8;
    transition: opacity 0.3s;
}
.partner-logo:hover { opacity: 1; }

/* Footer partner logos */
.footer-partners {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-top: 20px;
}
.footer-partners img {
    max-height: 30px;
    filter: brightness(0) invert(1);
    opacity: 0.6;
}

/* About section image */
.about-image {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 48px;
    max-height: 400px;
    position: relative;
}
.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.about-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, var(--bg-dark) 100%);
}

/* Career image */
.career-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}
.career-image img {
    width: 100%;
    border-radius: var(--radius-lg);
}
.career-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(108,99,255,0.3), rgba(0,212,170,0.2));
    border-radius: var(--radius-lg);
}