:root {
    --bg-primary: #0F0F0F;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #252525;
    --text-primary: #E8E8E8;
    --text-secondary: #A0A0A0;
    --accent: #F5A623;
    --accent-hover: #F5C564;
    --border: #333333;
    --max-width: 1100px;
    --radius: 8px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* ── Header ───────────────────────────────────────────── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.wordmark {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    font-size: 1.15rem;
    font-weight: 700;
    text-decoration: none;
}

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

.wordmark-icon {
    border-radius: 4px;
}

.site-header nav {
    display: flex;
    gap: 1.5rem;
}

.site-header nav a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.site-header nav a:hover {
    color: var(--accent);
}

/* ── Hero ─────────────────────────────────────────────── */

.hero {
    padding: 4rem 1.5rem 3rem;
}

.hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin: 0 0 1rem;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background-color: var(--accent);
    color: #0F0F0F;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    color: #0F0F0F;
}

.btn-secondary {
    background-color: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

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

/* ── Hero card ─────────────────────────────────────────── */

.hero-card {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    gap: 2.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

.hero-card-icon {
    flex-shrink: 0;
}

.hero-card-icon img {
    width: 180px;
    height: 180px;
    border-radius: var(--radius);
}

.hero-card-content {
    text-align: left;
    min-width: 0;
}

.hero-card-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.hero-card-tagline {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.hero-card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.hero-card-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.pill {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.pill:hover,
.pill.active {
    background-color: var(--accent);
    color: #0F0F0F;
    border-color: var(--accent);
    transform: translateY(-1px);
}

.hero-card-detail {
    min-height: 3.5rem;
    padding: 0.75rem 1rem;
    background-color: transparent;
    border-radius: 6px;
    border: 1px solid transparent;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.hero-card-detail.visible {
    background-color: var(--bg-tertiary);
    border-color: var(--border);
}

.detail-system {
    color: var(--accent);
    font-weight: 600;
}

.detail-ratings {
    font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.hero-card-sources {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ── Sections (shared) ────────────────────────────────── */

.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.section-inner h2 {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin: 0 0 2.5rem;
    letter-spacing: -0.01em;
}

/* ── Features ─────────────────────────────────────────── */

.features {
    background-color: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.feature-card {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius);
    padding: 1.75rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* ── Countries ────────────────────────────────────────── */

.countries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.country-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-align: center;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.country-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
}

.country-flag {
    font-size: 2rem;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.country-card strong {
    font-size: 1.05rem;
    color: var(--text-primary);
}

.country-system {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
}

.country-ratings {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;
    margin-top: 0.25rem;
}

/* ── Getting Started ──────────────────────────────────── */

.getting-started {
    background-color: var(--bg-secondary);
}

.steps-list {
    max-width: 640px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.start-step {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
}

.start-number {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: var(--accent);
    color: #0F0F0F;
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.start-text strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.start-text p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ── Footer ───────────────────────────────────────────── */

.site-footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
    text-align: center;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

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

.footer-author {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0 0 0.35rem;
}

.footer-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0;
    opacity: 0.7;
}

/* ── Responsive: tablet (768px) ───────────────────────── */

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.05rem;
    }

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

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

    .section-inner h2 {
        font-size: 1.75rem;
    }

    .hero-card {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
        padding: 2rem 1.5rem;
    }

    .hero-card-content {
        text-align: center;
    }

    .hero-card-pills {
        justify-content: center;
    }

    .hero-card-icon img {
        width: 140px;
        height: 140px;
    }
}

/* ── Responsive: small tablet (640px) ────────────────── */

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

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

/* ── Responsive: mobile (480px) ───────────────────────── */

@media (max-width: 480px) {
    .hero {
        padding: 2.5rem 1rem 2rem;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .hero p {
        font-size: 1rem;
    }

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

    .btn {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }

    .section-inner {
        padding: 3rem 1rem;
    }

    .section-inner h2 {
        font-size: 1.5rem;
    }

    .site-header nav {
        gap: 1rem;
    }

    .site-header nav a {
        font-size: 0.8rem;
    }
}