/* ClimbBuddy Modern Landing Page Design System */

/* ========================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ======================================== */
:root {
    /* Color Palette */
    --color-primary: #0F172A;
    --color-primary-light: #1E3A5F;
    --color-accent: #FF6B35;
    --color-accent-light: #FF8F5E;
    --color-background: #F1F5F9;
    --color-surface: #FFFFFF;
    --color-surface-variant: #F8FAFC;
    --color-text-primary: #1E293B;
    --color-text-secondary: #64748B;
    --color-text-muted: #94A3B8;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-info: #3B82F6;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Display Sizes */
    --text-display-1: 48px;
    --text-display-2: 36px;
    --text-display-3: 28px;
    
    /* Headline Sizes */
    --text-headline-1: 24px;
    --text-headline-2: 20px;
    --text-headline-3: 18px;
    
    /* Body Sizes */
    --text-body-1: 16px;
    --text-body-2: 14px;
    
    /* Label Sizes */
    --text-label-1: 14px;
    --text-label-2: 12px;
    --text-label-3: 10px;

    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.12);
    --shadow-nav: 0 2px 12px rgba(0, 0, 0, 0.06);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    --transition-bounce: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
}

body.landing-page {
    font-family: var(--font-family);
    font-size: var(--text-body-1);
    color: var(--color-text-primary);
    background-color: var(--color-background);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   TYPOGRAPHY UTILITIES
   ======================================== */
.landing-page .text-display-1 {
    font-size: var(--text-display-1);
    font-weight: 700;
    letter-spacing: -1.5px;
    line-height: 1.1;
}

.landing-page .text-display-2 {
    font-size: var(--text-display-2);
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.2;
}

.landing-page .text-display-3 {
    font-size: var(--text-display-3);
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.3;
}

.landing-page .text-headline-1 {
    font-size: var(--text-headline-1);
    font-weight: 600;
    line-height: 1.3;
}

.landing-page .text-headline-2 {
    font-size: var(--text-headline-2);
    font-weight: 600;
    line-height: 1.4;
}

.landing-page .text-headline-3 {
    font-size: var(--text-headline-3);
    font-weight: 600;
    line-height: 1.4;
}

.landing-page .text-body-1 {
    font-size: var(--text-body-1);
    font-weight: 400;
    line-height: 1.6;
}

.landing-page .text-body-2 {
    font-size: var(--text-body-2);
    font-weight: 400;
    line-height: 1.5;
}

.landing-page .text-label {
    font-size: var(--text-label-1);
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* ========================================
   NAVIGATION
   ======================================== */
.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-lg);
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.landing-nav.scrolled {
    background-color: var(--color-surface);
    box-shadow: var(--shadow-nav);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-decoration: none;
}

.nav-logo {
    width: 48px;
    height: 48px;
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.nav-logo:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.nav-logo img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.nav-brand-text {
    display: flex;
    flex-direction: column;
}

.nav-brand-name {
    font-size: var(--text-headline-3);
    font-weight: 700;
    color: var(--color-surface);
    letter-spacing: -0.5px;
    transition: color var(--transition-base);
}

.nav-brand-tagline {
    font-size: var(--text-label-2);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: color var(--transition-base);
}

.landing-nav.scrolled .nav-brand-name {
    color: var(--color-text-primary);
}

.landing-nav.scrolled .nav-brand-tagline {
    color: var(--color-text-secondary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-size: var(--text-body-2);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    transition: color var(--transition-base), background-color var(--transition-base);
}

.nav-link:hover {
    color: var(--color-surface);
    background-color: rgba(255, 255, 255, 0.1);
}

.landing-nav.scrolled .nav-link {
    color: var(--color-text-secondary);
}

.landing-nav.scrolled .nav-link:hover {
    color: var(--color-text-primary);
    background-color: var(--color-surface-variant);
}

.nav-cta {
    background-color: var(--color-accent);
    color: var(--color-surface) !important;
    padding: var(--space-sm) var(--space-lg) !important;
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.nav-cta:hover {
    background-color: var(--color-accent-light) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.35);
}

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

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

.landing-nav.scrolled .nav-toggle span {
    background-color: var(--color-text-primary);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    padding: 120px var(--space-lg) var(--space-3xl);
    overflow: hidden;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.05;
    background-image: 
        radial-gradient(circle at 25% 25%, var(--color-surface) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, var(--color-surface) 2px, transparent 2px);
    background-size: 60px 60px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    text-align: center;
    animation: fadeInUp 0.8s 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: var(--space-sm);
    background-color: rgba(255, 107, 53, 0.15);
    border: 1px solid rgba(255, 107, 53, 0.3);
    color: var(--color-accent);
    font-size: var(--text-label-2);
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-lg);
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.2);
    }
}

.hero-title {
    color: var(--color-surface);
    margin-bottom: var(--space-lg);
}

.hero-title-accent {
    color: var(--color-accent);
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-headline-2);
    font-weight: 400;
    max-width: 700px;
    margin: 0 auto var(--space-xl);
    line-height: 1.6;
}

.hero-cta-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-family);
    font-size: var(--text-body-1);
    font-weight: 600;
    text-decoration: none;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-surface);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background-color: var(--color-accent-light);
    border-color: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-surface);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgba(255, 107, 53, 0.15);
    border: 1px solid rgba(255, 107, 53, 0.3);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    min-width: 140px;
}

.hero-stat-value {
    font-size: var(--text-display-3);
    font-weight: 700;
    color: var(--color-surface);
    letter-spacing: -0.5px;
}

.hero-stat-label {
    font-size: var(--text-label-2);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Hero Wave */
.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    overflow: hidden;
}

.hero-wave svg {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 80px;
}

/* ========================================
   EVENTS SECTION
   ======================================== */
.events-section {
    padding: var(--space-3xl) var(--space-lg);
    background-color: var(--color-background);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-badge {
    display: inline-block;
    font-size: var(--text-label-2);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section-title {
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--text-headline-3);
    max-width: 600px;
    margin: 0 auto;
}

/* Event Tabs */
.event-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.event-tab {
    font-family: var(--font-family);
    font-size: var(--text-body-2);
    font-weight: 600;
    color: var(--color-text-secondary);
    background-color: var(--color-surface);
    border: 1px solid transparent;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}

.event-tab:hover {
    color: var(--color-text-primary);
    background-color: var(--color-surface-variant);
}

.event-tab.active {
    color: var(--color-surface);
    background-color: var(--color-primary);
}

/* Event Cards Grid */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-lg);
}

.event-card {
    position: relative;
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.event-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-card-hover);
}

.event-card-image {
    position: relative;
    height: 100px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.event-card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.4), transparent);
}

.event-card-icon {
    font-size: 40px;
    opacity: 0.3;
}

.event-card-status {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    z-index: 1;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--text-label-3);
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: var(--radius-full);
}

.status-badge.live {
    background-color: var(--color-success);
    color: var(--color-surface);
}

.status-badge.live::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--color-surface);
    border-radius: 50%;
    animation: pulse 1.5s ease-in-out infinite;
}

.status-badge.upcoming {
    background-color: var(--color-warning);
    color: var(--color-surface);
}

.status-badge.completed {
    background-color: var(--color-text-muted);
    color: var(--color-surface);
}

.event-card-content {
    padding: var(--space-lg);
}

.event-card-title {
    font-size: var(--text-headline-2);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.event-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    color: var(--color-text-secondary);
    font-size: var(--text-body-2);
    margin-bottom: var(--space-md);
}

.event-card-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.event-card-action {
    display: flex;
    gap: var(--space-sm);
}

.event-card-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    font-family: var(--font-family);
    font-size: var(--text-body-2);
    font-weight: 600;
    text-decoration: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.event-card-btn-primary {
    background-color: var(--color-accent);
    color: var(--color-surface);
}

.event-card-btn-primary:hover {
    background-color: var(--color-accent-light);
}

.event-card-btn-secondary {
    background-color: var(--color-surface-variant);
    color: var(--color-text-primary);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.event-card-btn-secondary:hover {
    background-color: var(--color-background);
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features-section {
    padding: var(--space-3xl) var(--space-lg);
    background-color: var(--color-surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    position: relative;
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    background-color: var(--color-surface-variant);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all var(--transition-slow);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 107, 53, 0.2);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    font-size: 24px;
    color: var(--color-surface);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.25);
}

.feature-title {
    font-size: var(--text-headline-2);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.feature-description {
    color: var(--color-text-secondary);
    font-size: var(--text-body-1);
    line-height: 1.7;
}

/* ========================================
   HOW IT WORKS SECTION
   ======================================== */
.how-section {
    padding: var(--space-3xl) var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    position: relative;
    overflow: hidden;
}

.how-section::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.05;
    background-image: 
        radial-gradient(circle at 25% 25%, var(--color-surface) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, var(--color-surface) 2px, transparent 2px);
    background-size: 60px 60px;
}

.how-section .section-badge {
    color: var(--color-accent);
}

.how-section .section-title {
    color: var(--color-surface);
}

.how-section .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    position: relative;
    z-index: 1;
}

.step-card {
    position: relative;
    text-align: center;
    padding: var(--space-xl);
}

.step-number {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 107, 53, 0.15);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    margin: 0 auto var(--space-lg);
    font-size: var(--text-headline-1);
    font-weight: 700;
    color: var(--color-accent);
}

.step-title {
    font-size: var(--text-headline-2);
    font-weight: 600;
    color: var(--color-surface);
    margin-bottom: var(--space-sm);
}

.step-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-body-1);
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
    padding: var(--space-3xl) var(--space-lg);
    background-color: var(--color-background);
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.cta-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--text-headline-3);
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.btn-dark {
    background-color: var(--color-primary);
    color: var(--color-surface);
    border-color: var(--color-primary);
}

.btn-dark:hover {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.25);
}

/* ========================================
   FOOTER
   ======================================== */
.landing-footer {
    background-color: var(--color-primary);
    color: var(--color-surface);
    padding: var(--space-2xl) var(--space-lg) var(--space-xl);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.footer-logo-icon {
    width: 40px;
    height: 40px;
    background-color: var(--color-surface);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-logo-icon img {
    width: 28px;
    height: 28px;
}

.footer-logo-text {
    font-size: var(--text-headline-3);
    font-weight: 700;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--text-body-2);
    line-height: 1.7;
}

.footer-links {
    display: flex;
    gap: var(--space-3xl);
    flex-wrap: wrap;
}

.footer-links-column h4 {
    font-size: var(--text-body-2);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-md);
    color: rgba(255, 255, 255, 0.5);
}

.footer-links-column ul {
    list-style: none;
}

.footer-links-column li {
    margin-bottom: var(--space-sm);
}

.footer-links-column a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: var(--text-body-2);
    transition: color var(--transition-base);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-body-2);
}

.footer-socials {
    display: flex;
    gap: var(--space-md);
}

.footer-social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-surface);
    text-decoration: none;
    transition: background-color var(--transition-base), transform var(--transition-base);
}

.footer-social-link:hover {
    background-color: var(--color-accent);
    transform: translateY(-2px);
}

/* ========================================
   RESPONSIVE STYLES
   ======================================== */

/* Tablet (600-1200px) */
@media (max-width: 1200px) {
    :root {
        --text-display-1: 40px;
        --text-display-2: 32px;
        --text-display-3: 24px;
    }

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

    .hero-stat {
        min-width: 120px;
        padding: var(--space-sm) var(--space-md);
    }
}

/* Mobile (< 600px) */
@media (max-width: 600px) {
    :root {
        --text-display-1: 32px;
        --text-display-2: 26px;
        --text-display-3: 20px;
        --text-headline-1: 20px;
        --text-headline-2: 18px;
        --text-headline-3: 16px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-surface);
        padding: var(--space-md);
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links .nav-link {
        color: var(--color-text-primary);
        padding: var(--space-md);
        border-radius: var(--radius-sm);
    }

    .nav-links .nav-link:hover {
        background-color: var(--color-surface-variant);
    }

    .nav-toggle {
        display: flex;
    }

    .hero-section {
        padding: 100px var(--space-md) var(--space-2xl);
        min-height: auto;
    }

    .hero-subtitle {
        font-size: var(--text-body-1);
    }

    .hero-cta-group {
        flex-direction: column;
        width: 100%;
    }

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

    .hero-stats {
        flex-direction: column;
        width: 100%;
    }

    .hero-stat {
        width: 100%;
    }

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

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

    .footer-top {
        flex-direction: column;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--space-xl);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.animate-fade-in {
    animation: fadeIn 0.6s ease-out both;
}

.animate-slide-up {
    animation: fadeInUp 0.6s ease-out both;
}

.animate-slide-left {
    animation: slideInLeft 0.6s ease-out both;
}

.animate-slide-right {
    animation: slideInRight 0.6s ease-out both;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* ========================================
   UTILITY CLASSES
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.hidden { display: none !important; }