/* CSS Variables */
:root {
    /* Primary */
    --color-primary: #4A148C;
    --color-primary-light: #7E57C2;
    --color-primary-hover: #6A1B9A;

    /* Secondary */
    --color-secondary: #FFB74D;
    --color-gold: #D4A84B;

    /* Backgrounds */
    --color-bg: #FFFFFF;
    --color-bg-alt: #F5F5F5;
    --color-card: #FFFFFF;
    --color-card-border: rgba(0, 0, 0, 0.1);

    /* Rarity */
    --color-legendary: #FFD700;
    --color-epic: #9C27B0;
    --color-rare: #2196F3;
    --color-common: #9E9E9E;

    /* Elements (matching Flutter app) */
    --color-fire: #FF9800;
    --color-water: #2196F3;
    --color-nature: #4CAF50;
    --color-electric: #FFC107;
    --color-earth: #795548;
    --color-ice: #00BCD4;
    --color-air: #40C4FF;
    --color-light: #FFEB3B;
    --color-dark: #673AB7;
    --color-insect: #CDDC39;
    --color-normal: #9E9E9E;

    /* Text */
    --color-text: #212121;
    --color-text-secondary: #666666;
    --color-text-muted: rgba(0, 0, 0, 0.6);
    --color-text-inverse: #FFFFFF;

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #4A148C 0%, #7E57C2 100%);
    --gradient-accent: linear-gradient(135deg, #7E57C2 0%, #9C27B0 100%);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);

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

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

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
    --color-primary: #7E57C2;
    --color-primary-light: #9575CD;
    --color-primary-hover: #9575CD;

    --color-secondary: #FFCC80;

    --color-bg: #121212;
    --color-bg-alt: #1E1E1E;
    --color-card: #1E1E1E;
    --color-card-border: rgba(255, 255, 255, 0.1);

    --color-text: #FFFFFF;
    --color-text-secondary: #B0B0B0;
    --color-text-muted: rgba(255, 255, 255, 0.7);
    --color-text-inverse: #121212;

    --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);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-card-border);
    transition: background-color var(--transition-normal);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.logo-img {
    height: 40px;
    width: 40px;
    border-radius: 10px; /* Apple-style rounded corners */
    object-fit: cover;
}

.logo-text {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-primary);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-full);
    background-color: var(--color-bg-alt);
    color: var(--color-text);
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
}

.icon-moon {
    display: none;
}

[data-theme="dark"] .icon-sun {
    display: none;
}

[data-theme="dark"] .icon-moon {
    display: block;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 64px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    opacity: 0.05;
    z-index: -1;
}

[data-theme="dark"] .hero-bg {
    opacity: 0.15;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.store-badge img {
    height: 48px;
    width: auto;
    transition: transform var(--transition-fast);
}

.store-badge:hover img {
    transform: scale(1.05);
}

.store-badge.large img {
    height: 56px;
}

/* Phone Mockup */
.hero-image {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-lg);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    border-radius: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-lg);
}

.mockup-timer {
    text-align: center;
}

.timer-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    border: 4px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
}

.timer-text {
    font-size: 2rem;
    font-weight: 700;
    color: #FFFFFF;
}

.timer-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

.mockup-creature {
    text-align: center;
}

.creature-sprite {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    margin: 0 auto var(--spacing-sm);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.xp-bar {
    width: 120px;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: 0 auto;
}

.xp-fill {
    width: 65%;
    height: 100%;
    background: var(--color-gold);
    border-radius: var(--radius-full);
}

/* Section Styles */
section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

/* Features Section */
.features {
    background-color: var(--color-bg-alt);
}

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

.feature-card {
    background: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--gradient-accent);
    border-radius: var(--radius-lg);
    color: #FFFFFF;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.feature-desc {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

/* Creatures Section */
.elements-showcase {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
}

.element-badge {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: #FFFFFF;
}

.element-badge.fire { background-color: var(--color-fire); }
.element-badge.water { background-color: var(--color-water); }
.element-badge.nature { background-color: var(--color-nature); }
.element-badge.electric { background-color: var(--color-electric); color: #212121; }
.element-badge.earth { background-color: var(--color-earth); }
.element-badge.ice { background-color: var(--color-ice); }
.element-badge.air { background-color: var(--color-air); color: #212121; }
.element-badge.light { background-color: var(--color-light); color: #212121; }
.element-badge.dark { background-color: var(--color-dark); }
.element-badge.insect { background-color: var(--color-insect); color: #212121; }
.element-badge.normal { background-color: var(--color-normal); }

.rarity-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.rarity-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    border: 2px solid transparent;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.rarity-card:hover {
    transform: scale(1.02);
}

.rarity-card.legendary {
    border-color: var(--color-legendary);
}

.rarity-card.epic {
    border-color: var(--color-epic);
}

.rarity-card.rare {
    border-color: var(--color-rare);
}

.rarity-card.common {
    border-color: var(--color-common);
}

.rarity-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-sm);
}

.rarity-card.legendary .rarity-icon {
    background: linear-gradient(135deg, var(--color-legendary), #FFA000);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.rarity-card.epic .rarity-icon {
    background: linear-gradient(135deg, var(--color-epic), #7B1FA2);
    box-shadow: 0 0 20px rgba(156, 39, 176, 0.5);
}

.rarity-card.rare .rarity-icon {
    background: linear-gradient(135deg, var(--color-rare), #1976D2);
    box-shadow: 0 0 20px rgba(33, 150, 243, 0.5);
}

.rarity-card.common .rarity-icon {
    background: linear-gradient(135deg, var(--color-common), #757575);
}

.rarity-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.rarity-card p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* How It Works */
.how-it-works {
    background-color: var(--color-bg-alt);
}

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 200px;
    max-width: 300px;
    text-align: center;
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--gradient-hero);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #FFFFFF;
    margin: 0 auto var(--spacing-md);
}

.step-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.step-desc {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: var(--color-primary);
    margin-top: 28px;
    opacity: 0.3;
}

/* Download CTA */
.download-cta {
    background: var(--gradient-hero);
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.cta-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: var(--spacing-sm);
}

.cta-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xl);
}

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

/* Footer */
.footer {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-card-border);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.footer-tagline {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

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

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: var(--spacing-xl);
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-image {
        order: -1;
    }

    .phone-mockup {
        width: 240px;
        height: 480px;
    }

    .timer-circle {
        width: 100px;
        height: 100px;
    }

    .timer-text {
        font-size: 1.5rem;
    }

    .step-connector {
        display: none;
    }

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .step {
        max-width: 100%;
    }

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

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: auto;
        padding-top: 80px;
        padding-bottom: var(--spacing-xl);
    }

    .phone-mockup {
        width: 200px;
        height: 400px;
        border-radius: 30px;
    }

    .phone-screen {
        border-radius: 24px;
    }

    .store-badge img {
        height: 40px;
    }

    .store-badge.large img {
        height: 48px;
    }

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

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