/* styles.css */
:root {
    --primary: #6366F1; /* Indigo */
    --secondary: #EC4899; /* Pink */
    --accent: #06B6D4; /* Cyan */
    --bg-light: #F8FAFC;
    --bg-dark: #0F172A;
    --text-light: #1E293B;
    --text-dark: #E2E8F0;
    --border: 1px solid #E2E8F0;
    --shadow: 0 10px 25px rgba(0,0,0,0.1);
    --radius: 12px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg-light: #0F172A;
    --bg-dark: #F8FAFC;
    --text-light: #E2E8F0;
    --text-dark: #1E293B;
    --border: 1px solid #334155;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.7;
    color: var(--text-light);
    background: var(--bg-light);
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: var(--border);
    transition: var(--transition);
}

[data-theme="dark"] .header {
    background: rgba(15,23,42,0.95);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: var(--transition);
}

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

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    cursor: pointer;
    width: 50px;
    height: 25px;
    background: var(--border);
    border-radius: 50px;
    padding: 3px;
    transition: var(--transition);
}

.toggle-slider {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 19px;
    height: 19px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

[data-theme="dark"] .toggle-slider {
    transform: translateX(25px);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    transition: var(--transition);
}

/* Hero */
.hero {
    position: relative;
    height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    text-align: center;
    z-index: 2;
    max-width: 800px;
    padding: 0 1.5rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.2s forwards;
}

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

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: white;
    color: var(--primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary);
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary);
}

.section p {
    font-size: 1.1rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.stat-card {
    background: white;
    padding: 2rem;
    text-align: center;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

[data-theme="dark"] .stat-card {
    background: var(--bg-dark);
}

.stat-card:hover {
    transform: scale(1.05);
}

.stat-card h3 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

/* Platforms Grid */
.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.platform-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

[data-theme="dark"] .platform-card {
    background: var(--bg-dark);
    border: var(--border);
}

.platform-card:hover {
    transform: translateY(-10px);
}

.card-header {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    padding: 1.5rem;
    position: relative;
}

.rank {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255,255,255,0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.card-header h3 {
    margin: 0;
    font-size: 1.4rem;
}

.card-body {
    padding: 1.5rem;
}

.card-body ul {
    list-style: none;
    padding: 0;
}

.card-body li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
}

[data-theme="dark"] .card-body li {
    border-bottom-color: #334155;
}

.platform-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--secondary);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.platform-link:hover {
    border-bottom-color: var(--secondary);
}

/* Tips */
.tips-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin: 3rem 0;
}

.tip-column h3 {
    color: var(--secondary);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.tip-column ol {
    list-style-position: inside;
}

.tip-column li {
    margin-bottom: 1rem;
    padding-left: 1rem;
}

/* Conclusion */
.conclusion {
    background: var(--bg-light);
    text-align: center;
}

[data-theme="dark"] .conclusion {
    background: var(--bg-dark);
}

.cta-wrapper {
    margin-top: 2rem;
}

.large {
    padding: 1.5rem 3rem;
    font-size: 1.2rem;
}

/* Footer */
.footer {
    background: var(--primary);
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: var(--bg-light);
        flex-direction: column;
        justify-content: center;
        gap: 1rem;
        transition: var(--transition);
    }

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

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

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

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