/**
 * OMINOUS LEAGUE - Main Stylesheet
 * Warframe Tournament Organization
 * Color Scheme: Purple/Smoke with Teal and Gold accents
 */

/* =====================================================
   CSS CUSTOM PROPERTIES (Variables)
   ===================================================== */
:root {
    /* Primary Colors - Purple/Smoke */
    --color-primary: #2D1B4E;
    --color-primary-light: #4A2C6A;
    --color-primary-dark: #1A0F2E;
    --color-secondary: #1A1A2E;
    --color-secondary-light: #252538;

    /* Accent Colors */
    --color-accent-teal: #00D4AA;
    --color-accent-teal-light: #33E0BC;
    --color-accent-teal-dark: #00A888;
    --color-accent-gold: #FFD700;
    --color-accent-gold-light: #FFE44D;
    --color-accent-gold-dark: #CCAC00;

    /* Smoke/Background Colors */
    --color-smoke: #0D0D14;
    --color-smoke-light: #16161F;
    --color-smoke-lighter: #1E1E2A;

    /* Text Colors */
    --color-text: #E8E8F0;
    --color-text-muted: #A0A0B0;
    --color-text-dark: #6A6A7A;

    /* Status Colors */
    --color-success: #00D4AA;
    --color-warning: #FFD700;
    --color-danger: #FF4757;
    --color-info: #5B9FFF;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-accent-teal) 0%, var(--color-accent-gold) 100%);
    --gradient-hero: linear-gradient(180deg, rgba(45, 27, 78, 0.95) 0%, rgba(13, 13, 20, 0.98) 100%);
    --gradient-card: linear-gradient(180deg, var(--color-smoke-light) 0%, var(--color-smoke) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow-teal: 0 0 20px rgba(0, 212, 170, 0.3);
    --shadow-glow-gold: 0 0 20px rgba(255, 215, 0, 0.3);
    --shadow-glow-purple: 0 0 30px rgba(74, 44, 106, 0.5);

    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-heading: 'Rajdhani', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

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

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-smoke);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(45, 27, 78, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(0, 212, 170, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(74, 44, 106, 0.15) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

a {
    color: var(--color-accent-teal);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-teal-light);
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }

/* =====================================================
   LAYOUT
   ===================================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

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

.section-title {
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

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

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

/* =====================================================
   NAVIGATION
   ===================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 13, 20, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(74, 44, 106, 0.3);
    padding: var(--spacing-md) 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    list-style: none;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1rem;
    color: var(--color-text);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent-teal);
    background: rgba(0, 212, 170, 0.1);
}

.nav-link.btn-nav {
    border: 1px solid var(--color-accent-teal);
}

.nav-link.btn-accent {
    background: var(--color-accent-teal);
    color: var(--color-smoke);
    border-color: var(--color-accent-teal);
}

.nav-link.btn-accent:hover {
    background: var(--color-accent-teal-light);
    color: var(--color-smoke);
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    position: relative;
    transition: var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--color-text);
    left: 0;
    transition: var(--transition-fast);
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(80px + var(--spacing-3xl)) var(--container-padding) var(--spacing-3xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent-gold);
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid var(--color-accent-gold);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

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

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
}

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

/* Animated background elements */
.hero-bg-element {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.hero-bg-element:nth-child(1) {
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.hero-bg-element:nth-child(2) {
    width: 300px;
    height: 300px;
    background: var(--color-accent-teal);
    bottom: 20%;
    right: -5%;
    animation-delay: -7s;
}

.hero-bg-element:nth-child(3) {
    width: 250px;
    height: 250px;
    background: var(--color-accent-gold);
    top: 50%;
    left: 50%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-md) var(--spacing-xl);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: transparent;
    color: var(--color-accent-teal);
    box-shadow: var(--shadow-glow-teal);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

.btn-secondary:hover {
    border-color: var(--color-accent-gold);
    color: var(--color-accent-gold);
}

.btn-gold {
    background: var(--color-accent-gold);
    color: var(--color-smoke);
    border-color: var(--color-accent-gold);
}

.btn-gold:hover {
    background: transparent;
    color: var(--color-accent-gold);
    box-shadow: var(--shadow-glow-gold);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.1rem;
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

/* =====================================================
   CARDS
   ===================================================== */
.card {
    background: var(--gradient-card);
    border: 1px solid rgba(74, 44, 106, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
}

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

.card-header {
    margin-bottom: var(--spacing-lg);
}

.card-title {
    font-family: var(--font-display);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

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

/* Tournament Card */
.tournament-card {
    position: relative;
    overflow: hidden;
}

.tournament-card .card-image {
    position: relative;
    height: 200px;
    margin: calc(var(--spacing-xl) * -1);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.tournament-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tournament-card .card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(transparent, var(--color-smoke));
}

.tournament-status {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
}

.tournament-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.tournament-info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.tournament-info-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent-teal);
}

/* =====================================================
   BADGES
   ===================================================== */
.badge {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.badge-primary { background: var(--color-primary); color: var(--color-text); }
.badge-success { background: var(--color-success); color: var(--color-smoke); }
.badge-warning { background: var(--color-warning); color: var(--color-smoke); }
.badge-danger { background: var(--color-danger); color: var(--color-text); }
.badge-info { background: var(--color-info); color: var(--color-smoke); }
.badge-secondary { background: var(--color-smoke-lighter); color: var(--color-text-muted); }

/* =====================================================
   LEADERBOARD / TABLES
   ===================================================== */
.leaderboard {
    background: var(--gradient-card);
    border: 1px solid rgba(74, 44, 106, 0.3);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.leaderboard-header {
    background: var(--color-primary);
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.leaderboard-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
}

.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
}

.leaderboard-table th,
.leaderboard-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid rgba(74, 44, 106, 0.2);
}

.leaderboard-table th {
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    background: rgba(45, 27, 78, 0.3);
}

.leaderboard-table tr:hover {
    background: rgba(0, 212, 170, 0.05);
}

.leaderboard-rank {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    width: 60px;
}

.leaderboard-rank.top-1 { color: var(--color-accent-gold); }
.leaderboard-rank.top-2 { color: #C0C0C0; }
.leaderboard-rank.top-3 { color: #CD7F32; }

.leaderboard-player {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.leaderboard-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary);
    overflow: hidden;
}

.leaderboard-points {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-accent-teal);
}

/* =====================================================
   FORMS
   ===================================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-smoke-light);
    border: 2px solid rgba(74, 44, 106, 0.3);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent-teal);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-dark);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-hint {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.form-error {
    color: var(--color-danger);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

/* =====================================================
   ALERTS
   ===================================================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
}

.alert-success {
    background: rgba(0, 212, 170, 0.1);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-warning {
    background: rgba(255, 215, 0, 0.1);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-danger {
    background: rgba(255, 71, 87, 0.1);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

.alert-info {
    background: rgba(91, 159, 255, 0.1);
    border-color: var(--color-info);
    color: var(--color-info);
}

/* =====================================================
   GRID LAYOUTS
   ===================================================== */
.grid {
    display: grid;
    gap: var(--spacing-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.grid-auto {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    background: var(--color-secondary);
    border-top: 1px solid rgba(74, 44, 106, 0.3);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    color: var(--color-accent-gold);
    font-family: var(--font-heading);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--color-text-muted);
    line-height: 1.7;
}

.footer-heading {
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

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

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

.footer-links a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-smoke-light);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

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

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(74, 44, 106, 0.2);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-disclaimer {
    font-size: 0.8rem;
    color: var(--color-text-dark);
    margin-top: var(--spacing-sm);
}

/* =====================================================
   NEWSLETTER SECTION
   ===================================================== */
.newsletter-section {
    background: var(--gradient-primary);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-md);
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form .form-input {
    flex: 1;
}

/* =====================================================
   STATS SECTION
   ===================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-xl);
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

/* =====================================================
   CALENDAR STYLES
   ===================================================== */
.calendar-section {
    padding: var(--spacing-3xl) 0;
}

.calendar-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.calendar-current-month {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
}

.calendar-nav-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.calendar-nav-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-smoke-light);
    border: 1px solid rgba(74, 44, 106, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.calendar-nav-btn:hover:not(:disabled) {
    border-color: var(--color-accent-teal);
    color: var(--color-accent-teal);
}

.calendar-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    background: rgba(74, 44, 106, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.calendar-header {
    background: var(--color-primary);
    padding: var(--spacing-md);
    text-align: center;
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.calendar-day {
    background: var(--color-smoke-light);
    padding: var(--spacing-md);
    min-height: 100px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.calendar-day:hover {
    background: var(--color-smoke-lighter);
}

.calendar-day.empty {
    background: var(--color-smoke);
    cursor: default;
}

.calendar-day-number {
    font-family: var(--font-display);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.calendar-event-indicator {
    width: 8px;
    height: 8px;
    background: var(--color-accent-teal);
    border-radius: 50%;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }

    body {
        padding-top: 70px;
    }

    /* Mobile Navigation */
    .nav-toggle {
        display: block;
        z-index: 1001;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-secondary);
        flex-direction: column;
        align-items: stretch;
        padding: 80px var(--spacing-xl) var(--spacing-xl);
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }

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

    .nav-link {
        display: block;
        padding: var(--spacing-md);
        border-radius: 0;
        border-bottom: 1px solid rgba(74, 44, 106, 0.2);
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding: calc(100px + var(--spacing-2xl)) var(--container-padding) var(--spacing-2xl);
    }

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

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

    /* Grids */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    /* Stats */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Forms */
    .newsletter-form {
        flex-direction: column;
    }

    /* Tables */
    .leaderboard-table th,
    .leaderboard-table td {
        padding: var(--spacing-sm);
        font-size: 0.85rem;
    }

    /* Calendar */
    .calendar-day {
        min-height: 60px;
        padding: var(--spacing-sm);
    }

    .calendar-header {
        padding: var(--spacing-sm);
        font-size: 0.7rem;
    }
}

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

    .calendar-grid {
        font-size: 0.8rem;
    }
}

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

.text-primary { color: var(--color-primary); }
.text-teal { color: var(--color-accent-teal); }
.text-gold { color: var(--color-accent-gold); }
.text-muted { color: var(--color-text-muted); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

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

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.animate-slide-up {
    animation: slideUp 0.5s ease forwards;
}

.animate-pulse {
    animation: pulse 2s infinite;
}