/* ============================================
   BGNU BROWSER - Premium Website Styles
   Royal Blue & Gold Theme | 2026 Design
   ============================================ */

/* CSS Variables */
:root {
    /* Primary Colors - Royal Blue */
    --primary-blue: #111D5E;
    --primary-blue-light: #1E3A8A;
    --primary-blue-dark: #0A1647;
    --accent-blue: #3B82F6;
    --light-blue: #60A5FA;

    /* Gold Accent */
    --gold: #D4AF37;
    --gold-light: #F4D03F;
    --gold-dark: #B8860B;

    /* Neutrals */
    --bg-dark: #0A0E1A;
    --bg-darker: #050811;
    --surface: #111827;
    --surface-light: #1F2937;
    --glass-bg: rgba(17, 29, 94, 0.3);
    --glass-border: rgba(212, 175, 55, 0.2);

    /* Text */
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;

    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #F4D03F 50%, #D4AF37 100%);
    --gradient-blue: linear-gradient(135deg, #111D5E 0%, #3B82F6 100%);
    --gradient-royal: linear-gradient(135deg, #111D5E 0%, #1E3A8A 50%, #3B82F6 100%);

    /* Shadows */
    --shadow-gold: 0 0 40px rgba(212, 175, 55, 0.3);
    --shadow-blue: 0 0 40px rgba(59, 130, 246, 0.3);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.5);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

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

.gradient-text-blue {
    background: linear-gradient(135deg, #60A5FA 0%, #3B82F6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Particles Background */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particles-container::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 20%, rgba(212, 175, 55, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(17, 29, 94, 0.1) 0%, transparent 60%);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 2rem;
    transition: var(--transition-normal);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.75rem 2rem;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-img {
    width: 45px;
    height: 45px;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.5));
    transition: var(--transition-normal);
}

.nav-logo:hover .logo-img {
    transform: scale(1.1);
}

.logo-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 2px;
}

.logo-badge {
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--gold);
    background: rgba(212, 175, 55, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--text-primary);
}

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

.nav-link.nav-cta {
    background: var(--gradient-gold);
    color: var(--bg-dark);
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-weight: 600;
}

.nav-link.nav-cta::after {
    display: none;
}

.nav-link.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

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

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-normal);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 2rem 4rem;
    overflow: hidden;
}

.hero-bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 30% 30%, rgba(17, 29, 94, 0.4) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    font-size: 0.85rem;
    color: var(--gold);
    margin-bottom: 1.5rem;
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.4);
    }

    50% {
        box-shadow: 0 0 0 10px rgba(212, 175, 55, 0);
    }
}

.hero-badge i {
    font-size: 0.9rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--bg-dark);
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--gold);
}

.btn-glow {
    animation: glow-pulse 2s ease-in-out infinite;
}

@keyframes glow-pulse {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
    }

    50% {
        box-shadow: 0 0 40px rgba(212, 175, 55, 0.6);
    }
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Browser Mockup */
.browser-mockup {
    width: 100%;
    max-width: 550px;
    background: var(--surface);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--glass-border);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-15px);
    }
}

.browser-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--bg-darker);
    border-bottom: 1px solid var(--glass-border);
}

.browser-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background: #EF4444;
}

.dot.yellow {
    background: #F59E0B;
}

.dot.green {
    background: #10B981;
}

.browser-title-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.browser-title-bar i {
    color: var(--gold);
}

.browser-controls {
    display: flex;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.browser-content {
    padding: 0;
}

.browser-address-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--surface-light);
    border-bottom: 1px solid var(--glass-border);
}

.address-icon {
    color: var(--gold);
    font-size: 0.85rem;
}

.address-text {
    flex: 1;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.address-actions {
    display: flex;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.browser-screen {
    padding: 2rem;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--primary-blue-dark) 100%);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.screen-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
}

.screen-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.5));
}

.screen-welcome {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.screen-search {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    max-width: 350px;
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.screen-quick-links {
    display: flex;
    gap: 1rem;
}

.quick-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.quick-link:hover {
    background: var(--primary-blue);
    color: var(--text-primary);
}

/* Floating Cards */
.floating-card {
    position: absolute;
    padding: 0.75rem 1.25rem;
    background: rgba(17, 29, 94, 0.8);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    animation: float-card 3s ease-in-out infinite;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.floating-card i {
    color: var(--gold);
}

.card-1 {
    top: 10%;
    right: 0;
    animation-delay: 0s;
}

.card-2 {
    bottom: 30%;
    left: -10%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 10%;
    right: 5%;
    animation-delay: 2s;
}

@keyframes float-card {

    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-10px) rotate(2deg);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    animation: bounce 2s ease-in-out infinite;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--gold);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {

    0%,
    100% {
        opacity: 1;
        top: 8px;
    }

    50% {
        opacity: 0.3;
        top: 20px;
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features-section {
    padding: 6rem 2rem;
    position: relative;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    margin-bottom: 1rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.gold-tag {
    color: var(--gold);
    background: rgba(212, 175, 55, 0.1);
}

.section-title {
    font-size: 2.75rem;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--gold);
    box-shadow: var(--shadow-gold);
}

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

.feature-card.feature-large {
    grid-column: span 1;
    grid-row: span 2;
    display: flex;
    flex-direction: column;
}

.feature-card.feature-large p {
    flex: 1;
}

.feature-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-icon-wrapper.gold {
    background: rgba(212, 175, 55, 0.15);
    color: var(--gold);
}

.feature-icon-wrapper.blue {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.feature-icon-wrapper.purple {
    background: rgba(139, 92, 246, 0.15);
    color: #8B5CF6;
}

.feature-icon-wrapper.green {
    background: rgba(16, 185, 129, 0.15);
    color: #10B981;
}

.feature-icon-wrapper.orange {
    background: rgba(245, 158, 11, 0.15);
    color: #F59E0B;
}

.feature-icon-wrapper.cyan {
    background: rgba(6, 182, 212, 0.15);
    color: #06B6D4;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.feature-tag {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    background: var(--gradient-gold);
    color: var(--bg-dark);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 20px;
    margin-top: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   EXAM MODE SECTION
   ============================================ */
.exam-section {
    padding: 6rem 2rem;
    position: relative;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--primary-blue-dark) 50%, var(--bg-darker) 100%);
    overflow: hidden;
}

.exam-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(212, 175, 55, 0.1) 0%, transparent 30%),
        radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.1) 0%, transparent 30%);
    pointer-events: none;
}

.exam-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.exam-text {
    position: relative;
    z-index: 1;
}

.exam-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.exam-features-list {
    list-style: none;
    margin-bottom: 2.5rem;
}

.exam-features-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid transparent;
    transition: var(--transition-normal);
}

.exam-features-list li:hover {
    background: rgba(212, 175, 55, 0.05);
    border-color: rgba(212, 175, 55, 0.2);
}

.check-icon {
    width: 28px;
    height: 28px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-dark);
    font-size: 0.75rem;
    flex-shrink: 0;
}

.exam-features-list li strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.exam-features-list li span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Exam Mockup */
.exam-visual {
    position: relative;
}

.exam-mockup {
    position: relative;
    perspective: 1000px;
}

.exam-screen {
    background: var(--surface);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    transform: rotateY(-5deg) rotateX(2deg);
    transition: var(--transition-normal);
}

.exam-screen:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.exam-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--primary-blue);
    border-bottom: 2px solid var(--gold);
}

.exam-logo {
    width: 40px;
    height: 40px;
}

.exam-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.exam-title {
    flex: 1;
}

.exam-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.exam-name {
    font-size: 1rem;
    font-weight: 600;
}

.exam-timer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    color: #EF4444;
    font-weight: 600;
}

.exam-body {
    padding: 1.5rem;
}

.question-card {
    background: var(--bg-dark);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.question-number {
    display: inline-block;
    background: var(--gradient-gold);
    color: var(--bg-dark);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.question-text {
    font-size: 1.05rem;
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.options-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--surface-light);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.option:hover {
    background: var(--surface);
    border-color: var(--glass-border);
}

.option.selected {
    background: rgba(212, 175, 55, 0.1);
    border-color: var(--gold);
}

.option-circle {
    width: 18px;
    height: 18px;
    border: 2px solid var(--text-muted);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.option-circle.filled {
    border-color: var(--gold);
    background: var(--gold);
}

.option-circle.filled::after {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--bg-dark);
    border-radius: 50%;
}

.exam-nav {
    display: flex;
    justify-content: space-between;
}

.exam-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--surface-light);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.exam-btn:hover {
    background: var(--primary-blue);
}

.exam-btn.next {
    background: var(--gradient-gold);
    color: var(--bg-dark);
    border: none;
}

.exam-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: var(--bg-darker);
    border-top: 1px solid var(--glass-border);
}

.progress-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.progress-bar {
    width: 200px;
    height: 6px;
    background: var(--surface-light);
    border-radius: 3px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-gold);
    border-radius: 3px;
}

.lockdown-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(16, 185, 129, 0.15);
    color: #10B981;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.exam-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.15) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

/* ============================================
   AI SECTION
   ============================================ */
.ai-section {
    padding: 6rem 2rem;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.ai-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* AI Chat Mockup */
.ai-chat-mockup {
    background: var(--surface);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    max-width: 450px;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--primary-blue);
    border-bottom: 1px solid var(--glass-border);
}

.chat-avatar {
    width: 45px;
    height: 45px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-dark);
    font-size: 1.25rem;
}

.chat-info {
    flex: 1;
}

.chat-name {
    display: block;
    font-weight: 600;
    font-size: 1rem;
}

.chat-status {
    font-size: 0.8rem;
    color: #10B981;
}

.chat-status i {
    font-size: 0.5rem;
    margin-right: 0.25rem;
}

.chat-messages {
    padding: 1.5rem;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    max-width: 85%;
}

.message.bot {
    align-self: flex-start;
}

.message.user {
    align-self: flex-end;
}

.message-content {
    padding: 1rem 1.25rem;
    border-radius: 16px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.message.bot .message-content {
    background: var(--surface-light);
    border-bottom-left-radius: 4px;
}

.message.user .message-content {
    background: var(--primary-blue);
    border-bottom-right-radius: 4px;
}

.typing-indicator {
    display: flex;
    gap: 4px;
    margin-top: 0.5rem;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.6;
    }

    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

.chat-input {
    display: flex;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--bg-dark);
    border-top: 1px solid var(--glass-border);
}

.chat-input input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--surface-light);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
}

.chat-input input:focus {
    border-color: var(--gold);
}

.chat-input button {
    width: 45px;
    height: 45px;
    background: var(--gradient-gold);
    border: none;
    border-radius: 50%;
    color: var(--bg-dark);
    cursor: pointer;
    transition: var(--transition-fast);
}

.chat-input button:hover {
    transform: scale(1.1);
}

/* AI Text & Features */
.ai-text {
    padding-right: 2rem;
}

.ai-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.ai-features {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.ai-feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    transition: var(--transition-normal);
}

.ai-feature-item:hover {
    border-color: var(--accent-blue);
    transform: translateX(5px);
}

.ai-feature-icon {
    width: 50px;
    height: 50px;
    background: rgba(59, 130, 246, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
    font-size: 1.25rem;
}

.ai-feature-text strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.ai-feature-text span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ============================================
   DOWNLOAD SECTION
   ============================================ */
.download-section {
    padding: 8rem 2rem;
    position: relative;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--primary-blue-dark) 50%, var(--bg-dark) 100%);
    text-align: center;
}

.download-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.download-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.download-icon {
    width: 140px;
    height: 140px;
    margin: 0 auto 2rem;
    animation: float 6s ease-in-out infinite;
}

.download-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 40px rgba(212, 175, 55, 0.5));
}

.download-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.download-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.download-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2.5rem;
    text-align: left;
}

.btn-icon {
    font-size: 2rem;
}

.btn-text {
    display: flex;
    flex-direction: column;
}

.btn-label {
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.8;
}

.btn-platform {
    font-size: 1.1rem;
    font-weight: 700;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.info-item i {
    color: var(--gold);
}

.download-instructions {
    background: var(--surface);
    padding: 1.5rem 2rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    text-align: left;
    display: inline-block;
}

.download-instructions h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--gold);
}

.download-instructions ol {
    padding-left: 1.25rem;
    color: var(--text-secondary);
}

.download-instructions li {
    margin-bottom: 0.5rem;
}

.download-instructions code {
    background: var(--bg-dark);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: monospace;
    color: var(--gold);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--glass-border);
    padding: 4rem 2rem 2rem;
}

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

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.3));
}

.footer-name {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.footer-column h5 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--gold);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-bottom i {
    color: #EF4444;
}

.tech-stack {
    font-size: 0.8rem;
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 3rem;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-card.feature-large {
        grid-column: span 2;
        grid-row: span 1;
    }
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .browser-mockup {
        max-width: 400px;
    }

    .floating-card {
        display: none;
    }

    .exam-content {
        grid-template-columns: 1fr;
    }

    .exam-text {
        text-align: center;
    }

    .ai-content {
        grid-template-columns: 1fr;
    }

    .ai-text {
        padding-right: 0;
        text-align: center;
        order: -1;
    }

    .ai-chat-mockup {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card.feature-large {
        grid-column: span 1;
    }

    .download-title {
        font-size: 2.25rem;
    }

    .footer-links {
        gap: 2rem;
    }

    .scroll-indicator {
        display: none;
    }

    .exam-screen {
        transform: none;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 100px 1rem 3rem;
    }

    .hero-title {
        font-size: 1.85rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .download-info {
        flex-direction: column;
        gap: 0.75rem;
    }
}