/* ============================================
   FRONTEND SUMMIT 2025 - PROFESSIONAL STYLES
   Design System: Neo-Glassmorphism Tech
   ============================================ */

/* ===== CSS RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* === Accessibility === */
.skip-link {
    position: absolute;
    left: -9999px;
    z-index: 9999;
    padding: 1rem 1.5rem;
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-family: var(--font-primary);
}

.skip-link:focus {
    left: 1rem;
    top: 1rem;
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

:root {
    /* === Color Palette === */
    --color-primary: #6366F1;
    --color-primary-dark: #4F46E5;
    --color-primary-light: #818CF8;

    --color-secondary: #8B5CF6;
    --color-secondary-dark: #7C3AED;

    --color-accent: #EC4899;
    --color-accent-dark: #DB2777;

    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;

    /* Backgrounds Light Mode */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-hover: rgba(255, 255, 255, 0.85);

    /* Text Light Mode */
    --text-primary: #1F2937;
    --text-secondary: #4B5563;
    --text-tertiary: #6B7280;
    --text-inverse: #FFFFFF;

    /* Borders & Shadows */
    --border-light: rgba(0, 0, 0, 0.05);
    --border-medium: rgba(0, 0, 0, 0.1);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-index Scale */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* === Dark Mode Colors === */
[data-theme="dark"] {
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-tertiary: #334155;
    --bg-glass: rgba(30, 41, 59, 0.7);
    --bg-glass-hover: rgba(30, 41, 59, 0.85);

    --text-primary: #F9FAFB;
    --text-secondary: #E2E8F0;
    --text-tertiary: #CBD5E1;
    --text-inverse: #1F2937;

    --border-light: rgba(255, 255, 255, 0.05);
    --border-medium: rgba(255, 255, 255, 0.1);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
}

/* === Base HTML Elements === */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

body {
    font-family: var(--font-secondary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-overflow-scrolling: touch;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    -webkit-transition: background-color var(--transition-slow), color var(--transition-slow);
    -moz-transition: background-color var(--transition-slow), color var(--transition-slow);
    -ms-transition: background-color var(--transition-slow), color var(--transition-slow);
    -o-transition: background-color var(--transition-slow), color var(--transition-slow);
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

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

h1 { font-size: clamp(1.8rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* === Utility Classes === */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
}

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary), var(--color-accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.glass-card {
    background: var(--bg-glass);
    -webkit-backdrop-filter: blur(20px);
    -moz-backdrop-filter: blur(20px);
    -ms-backdrop-filter: blur(20px);
    -o-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    -webkit-transition: all var(--transition-base);
    -moz-transition: all var(--transition-base);
    -ms-transition: all var(--transition-base);
    -o-transition: all var(--transition-base);
    transition: all var(--transition-base);
}

.glass-card:hover {
    background: var(--bg-glass-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* === Scroll to Top === */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-full);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-fixed);
    font-size: 1.25rem;
    transition: all var(--transition-base);
    opacity: 0;
    visibility: hidden;
    transform: translateY(100px);
}

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

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border-color: transparent;
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    max-width: 100%;
    z-index: var(--z-sticky);
    padding: 1rem 0;
    -webkit-transform: translateZ(0);
    -moz-transform: translateZ(0);
    -ms-transform: translateZ(0);
    -o-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-transition: all var(--transition-base);
    -moz-transition: all var(--transition-base);
    -ms-transition: all var(--transition-base);
    -o-transition: all var(--transition-base);
    transition: all var(--transition-base);
    box-sizing: border-box;
}

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

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    flex-shrink: 0;
    max-width: calc(100% - 3rem);
}

.logo span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.logo i {
    color: var(--color-primary);
    font-size: 2rem;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-primary);
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: width var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.375rem;
    width: 2rem;
    height: 2rem;
    background: none;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
}

.nav-toggle span {
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
    border-radius: var(--radius-full);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), 0 0 30px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
    background: var(--bg-glass-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 6rem;
    padding-bottom: 3rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    top: -200px;
    left: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -50px) scale(1.1); }
    66% { transform: translate(-30px, 30px) scale(0.9); }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.hero-title {
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.highlight-text {
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

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

.stat-number {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.feature-tag {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    color: var(--text-secondary);
    box-shadow: var(--shadow-sm);
}

.feature-tag i {
    color: var(--color-primary);
}

/* === Countdown === */
.countdown-container {
    margin-top: var(--spacing-2xl);
    width: 100%;
}

.countdown-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-primary);
}

.countdown {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    max-width: 100%;
}

.countdown-item {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 1.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    min-width: 100px;
}

.countdown-value {
    display: block;
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    transition: transform 0.2s ease;
}

.countdown-label {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* === Section Headers === */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* === About Section === */
.about-section {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.about-card {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.about-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.about-card p,
.about-card .feature-list {
    flex: 1;
}

.about-card.highlight-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 2px solid var(--color-primary);
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .about-card {
        height: auto;
    }
}

.card-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

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

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.feature-list i {
    color: var(--color-primary);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

/* === Benefits === */
.benefits-section {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.benefits-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 2rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    transform: translateX(8px);
    border-color: var(--color-primary);
}

.benefit-item i {
    font-size: 1.5rem;
    color: var(--color-primary);
    flex-shrink: 0;
}

.benefit-item span {
    font-weight: 500;
    color: var(--text-secondary);
}

/* === Program Section === */
.program-timeline {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.timeline-day {
    position: relative;
}

.day-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.day-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-md);
}

.day-header h3 {
    margin-bottom: 0.5rem;
}

.day-header p {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.timeline-sessions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    position: relative;
    padding-left: 2rem;
}

.timeline-sessions::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
    opacity: 0.3;
}

.session-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    position: relative;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.session-card::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 2rem;
    width: 1rem;
    height: 1rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--bg-primary);
}

.session-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-xl);
}

.session-card.break-card {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.05));
    border-color: var(--color-success);
}

.session-card.break-card::before {
    background: var(--color-success);
}

.session-card.highlight-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 2px solid var(--color-primary);
}

.session-time {
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1rem;
    flex-shrink: 0;
    min-width: 120px;
}

.session-content {
    flex: 1;
}

.session-content h4 {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.125rem;
}

.session-content h4 i {
    color: var(--color-primary);
}

.session-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.session-speaker {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.session-speaker img {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-primary);
}

.session-speaker span {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* === Speakers Section === */
.speakers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 992px) {
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .speakers-grid {
        grid-template-columns: 1fr;
    }
}

.speaker-card {
    padding: 0;
    overflow: hidden;
}

.speaker-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
}

.speaker-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.speaker-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.speaker-card:hover .speaker-overlay {
    opacity: 1;
}

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

.social-links a {
    width: 2.5rem;
    height: 2.5rem;
    background: white;
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    transition: all var(--transition-base);
}

.social-links a:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.speaker-content {
    padding: var(--spacing-lg);
}

.speaker-content h3 {
    margin-bottom: 0.25rem;
    font-size: 1.5rem;
}

.speaker-role {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.speaker-bio {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
}

.speaker-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--border-light);
}

/* === Testimonials Section === */
.testimonials-section {
    background: var(--bg-secondary);
}

.testimonials-slider {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
    padding: 0 3.5rem;
}

.slider-container {
    display: grid;
    grid-template-columns: repeat(6, calc(33.333% - var(--spacing-lg) * 2 / 3));
    gap: var(--spacing-lg);
    transition: transform var(--transition-slow);
}

.testimonial-card {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stars {
    display: flex;
    gap: 0.25rem;
    color: #F59E0B;
    font-size: 1.125rem;
}

.testimonial-text {
    color: var(--text-secondary);
    line-height: 1.7;
    font-style: italic;
    flex: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.testimonial-author img {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-primary);
}

.testimonial-author h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.testimonial-author p {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 3rem;
    height: 3rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    z-index: 10;
}

.slider-btn:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.prev-btn {
    left: 0;
}

.next-btn {
    right: 0;
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: var(--spacing-lg);
}

.slider-dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    background: var(--border-medium);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.slider-dot.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    transform: scale(1.3);
}

/* === FAQ Section === */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: none;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1.0625rem;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-base);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-question i {
    flex-shrink: 0;
    transition: transform var(--transition-base);
    color: var(--color-primary);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* === Location Section === */
.location-section {
    background: var(--bg-secondary);
}

.location-content {
    max-width: 900px;
    margin: 0 auto;
}

.location-info {
    padding: var(--spacing-xl);
}

.location-info h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
    font-size: 1.75rem;
}

.location-info h3 i {
    color: var(--color-primary);
}

.address {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.location-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.detail-item {
    display: flex;
    gap: 1rem;
}

.detail-item i {
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.detail-item strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.detail-item p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.hotel-info {
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}

.hotel-info h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.hotel-info h4 i {
    color: var(--color-primary);
}

.hotel-info ul {
    margin-bottom: var(--spacing-md);
}

.hotel-info li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-light);
}

.hotel-info li:last-child {
    border-bottom: none;
}

.discount-note {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: var(--spacing-sm);
    background: var(--color-success);
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
}


/* === Registration Section === */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.pricing-card {
    padding: var(--spacing-xl);
    position: relative;
}

.pricing-card.featured-pricing {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 2px solid var(--color-primary);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -0.75rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1.5rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--border-medium);
}

.pricing-badge.popular {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    box-shadow: var(--shadow-md);
}

.pricing-header {
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-light);
}

.price {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.amount {
    font-family: var(--font-primary);
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.currency-label {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.price-description {
    color: var(--text-tertiary);
    font-size: 0.9375rem;
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.pricing-features i {
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.pricing-features .fa-check {
    color: var(--color-success);
}

.pricing-features .fa-times {
    color: var(--text-tertiary);
}

.opacity-30 {
    opacity: 0.3;
}

/* === Registration Form === */
.registration-form-container {
    padding: var(--spacing-2xl);
}

.registration-form-container h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    font-size: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.required {
    color: var(--color-error);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-family: var(--font-secondary);
    font-size: 1rem;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input.error,
.form-group select.error {
    border-color: var(--color-error);
}

.error-message {
    display: block;
    margin-top: 0.5rem;
    color: var(--color-error);
    font-size: 0.875rem;
    font-weight: 500;
}

.payment-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.payment-option {
    position: relative;
    cursor: pointer;
}

.payment-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.payment-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-medium);
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: all var(--transition-base);
}

.payment-option input[type="radio"]:checked + .payment-label {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--color-primary);
}

.payment-label i {
    color: var(--color-primary);
    font-size: 1.25rem;
}

.checkbox-group {
    margin-top: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: 400;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
    flex-shrink: 0;
    cursor: pointer;
}

.link {
    color: var(--color-primary);
    text-decoration: underline;
}

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

.form-actions {
    margin-top: var(--spacing-xl);
    text-align: center;
}

.form-actions .btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-actions .btn .fa-spinner {
    animation: spin 1s linear infinite;
}

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

.success-message {
    text-align: center;
    padding: var(--spacing-2xl);
}

.success-icon {
    width: 5rem;
    height: 5rem;
    background: var(--color-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    animation: successPop 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes successPop {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.success-icon i {
    font-size: 3rem;
    color: white;
}

.success-message h3 {
    color: var(--color-success);
    margin-bottom: var(--spacing-md);
}

.success-message p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.next-steps {
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-primary);
    text-align: left;
    margin: var(--spacing-lg) auto;
    max-width: 500px;
}

/* === Footer === */
.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
}

.footer-logo i {
    color: var(--color-primary);
    font-size: 2rem;
}

.footer-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.footer-section .social-links {
    gap: 0.75rem;
}

.footer-section .social-links a {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
}

.footer-section .social-links a:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border-color: transparent;
}

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

.footer-links a {
    color: var(--text-secondary);
    transition: all var(--transition-base);
    padding: 0.25rem 0;
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: 0.5rem;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.footer-contact i {
    color: var(--color-primary);
    width: 1.25rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.footer-credits {
    margin-top: 0.5rem;
}

.footer-credits i {
    color: var(--color-error);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    10%, 30% { transform: scale(1.1); }
    20%, 40% { transform: scale(1); }
}

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

@media (max-width: 1024px) {
    .navbar {
        padding: 0.875rem 0;
    }

    .logo {
        font-size: 1.375rem;
    }

    .logo i {
        font-size: 1.75rem;
    }

    .nav-menu {
        gap: 1.25rem;
    }

    .nav-link {
        font-size: 0.9rem;
        padding: 0.5rem 0;
    }

    .slider-container {
        grid-template-columns: repeat(6, calc(50% - var(--spacing-lg) / 2));
    }

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

@media (max-width: 1100px) {
    :root {
        --spacing-3xl: 4rem;
        --spacing-2xl: 3rem;
    }

    .navbar {
        padding: 0.75rem 0;
    }

    .logo {
        font-size: 1.25rem;
        max-width: calc(100% - 3rem);
    }

    .logo i {
        font-size: 1.5rem;
    }

    .logo span {
        font-size: 1.125rem;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        max-width: 85%;
        height: 100vh;
        height: 100dvh;
        max-width: calc(100vw - 60px);
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem 1.5rem 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-slow);
        border-left: 1px solid var(--border-light);
        overflow-y: auto;
        box-sizing: border-box;
        z-index: 999;
    }

    /* Dark mode menu background */
    [data-theme="dark"] .nav-menu {
        background: rgba(30, 41, 59, 0.95);
    }

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

    .nav-toggle {
        display: flex;
        position: relative;
        z-index: 1000;
    }

    .nav-link {
        width: 100%;
        padding: 0.75rem 0;
        font-size: 1rem;
    }

    .nav-menu .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0.75rem 0;
    }

    .logo {
        font-size: 1.125rem;
    }

    .logo i {
        font-size: 1.375rem;
    }

    .logo span {
        font-size: 1rem;
    }

    .nav-menu {
        width: 280px;
        max-width: 85%;
        padding: 5.5rem 2rem 2rem;
    }

    .hero-stats {
        gap: var(--spacing-md);
    }

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

    .hero-cta .btn {
        width: 100%;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .payment-options {
        grid-template-columns: 1fr;
    }

    .slider-container {
        grid-template-columns: repeat(6, 100%);
    }

    .slider-btn {
        display: none;
    }

    .testimonials-slider {
        padding: 0;
    }

    .timeline-sessions {
        padding-left: 1.5rem;
    }

    .session-card {
        flex-direction: column;
    }

    .session-time {
        min-width: auto;
    }

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

    .pricing-card.featured-pricing {
        transform: scale(1);
    }

    .scroll-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 3rem;
        height: 3rem;
        font-size: 1rem;
    }

    .countdown-title {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0.5rem 0;
    }

    .logo {
        font-size: 1rem;
        gap: 0.375rem;
    }

    .logo i {
        font-size: 1.25rem;
    }

    .logo span {
        font-size: 1rem;
    }

    .nav-toggle {
        width: 1.75rem;
        height: 1.75rem;
        gap: 0.25rem;
    }

    .nav-menu {
        width: 260px;
        max-width: 90%;
        padding: 5rem 1.5rem 2rem;
        gap: 1.25rem;
    }

    .hero-features {
        flex-direction: column;
        align-items: stretch;
    }

    .countdown {
        gap: 0.5rem;
    }

    .countdown-item {
        padding: 1rem 1.5rem;
        min-width: 80px;
    }

    .countdown-value {
        font-size: 2rem;
    }

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

    .pricing-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 360px) {
    .navbar {
        padding: 0.5rem 0;
    }

    .logo {
        font-size: 0.9rem;
        gap: 0.25rem;
    }

    .logo i {
        font-size: 1.1rem;
    }

    .logo span {
        font-size: 0.875rem;
    }

    .nav-toggle {
        width: 1.5rem;
        height: 1.5rem;
        gap: 0.2rem;
    }

    .nav-toggle span {
        height: 1.5px;
    }

    .nav-menu {
        width: 100%;
        max-width: 95%;
        padding: 4.5rem 1.25rem 2rem;
        gap: 1rem;
    }

    .nav-link {
        padding: 0.625rem 0;
        font-size: 0.95rem;
    }
}

/* ===== ACCESSIBILITY ===== */

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
}

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

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===== LOADING STATES ===== */

.loading {
    pointer-events: none;
    opacity: 0.6;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== PRINT STYLES ===== */

@media print {
    .navbar,
    .theme-toggle,
    .floating-cta,
    .slider-btn,
    .footer {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .section {
        page-break-inside: avoid;
    }
}

/* ===== DESKTOP BREAKPOINTS (1440px+) ===== */

@media (min-width: 1440px) {
    .container {
        max-width: 1320px;
        padding: 0 var(--spacing-xl);
    }

    h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
    h2 { font-size: clamp(2.25rem, 4vw, 3.5rem); }

    .section {
        padding: var(--spacing-3xl) 0;
    }

    .testimonials-slider {
        max-width: 1320px;
    }

    .slider-container {
        grid-template-columns: repeat(6, calc(33.333% - var(--spacing-xl) * 2 / 3));
        gap: var(--spacing-xl);
    }

    .pricing-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-2xl);
        margin-bottom: 5rem;
    }

    .footer-content {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
        gap: var(--spacing-3xl);
    }
}

@media (min-width: 1920px) {
    .container {
        max-width: 1440px;
        padding: 0 var(--spacing-2xl);
    }

    :root {
        --spacing-3xl: 8rem;
        --spacing-2xl: 5rem;
    }

    h1 { font-size: clamp(3rem, 5vw, 5rem); }
    h2 { font-size: clamp(2.5rem, 4vw, 4rem); }

    .section {
        padding: calc(var(--spacing-3xl) * 1.2) 0;
    }

    .testimonials-slider {
        max-width: 1440px;
    }

    .slider-container {
        grid-template-columns: repeat(6, calc(33.333% - var(--spacing-2xl) * 2 / 3));
        gap: var(--spacing-2xl);
    }

    .pricing-cards {
        max-width: 900px;
        margin: 0 auto 6rem;
        gap: var(--spacing-3xl);
    }

    .program-timeline {
        max-width: 1200px;
    }

    .footer-content {
        gap: var(--spacing-3xl);
    }
}

@media (min-width: 2560px) {
    .container {
        max-width: 1680px;
        padding: 0 var(--spacing-3xl);
    }

    :root {
        --spacing-3xl: 10rem;
        --spacing-2xl: 6rem;
    }

    h1 { font-size: clamp(3.5rem, 5vw, 6rem); }
    h2 { font-size: clamp(3rem, 4vw, 5rem); }
    h3 { font-size: clamp(2rem, 3vw, 2.75rem); }

    .hero {
        padding-top: 8rem;
    }

    .testimonials-slider {
        max-width: 1680px;
    }

    .slider-container {
        grid-template-columns: repeat(6, calc(33.333% - var(--spacing-3xl) * 2 / 3));
        gap: var(--spacing-3xl);
    }

    .pricing-cards {
        max-width: 1000px;
        margin-bottom: 7rem;
    }

    .program-timeline {
        max-width: 1400px;
    }

    .countdown-item {
        padding: 2rem 3rem;
        min-width: 140px;
    }

    .countdown-value {
        font-size: 3.5rem;
    }
}