/* Crypto Digital News — site.css */
:root {
    --cdn-accent:   #f7931a;  /* Bitcoin orange */
    --cdn-dark:     #0d1117;
    --cdn-surface:  #161b22;
    --cdn-border:   #30363d;
    --cdn-text:     #e6edf3;
    --cdn-muted:    #8b949e;
    --cdn-radius:   8px;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--cdn-dark);
    color: var(--cdn-text);
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--cdn-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

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

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

.site-header .inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    height: 60px;
}

.site-logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--cdn-accent) !important;
    text-decoration: none !important;
    white-space: nowrap;
}

.site-nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.site-nav a { color: var(--cdn-muted); font-size: 0.875rem; }
.site-nav a:hover { color: var(--cdn-text); text-decoration: none; }

.search-form {
    margin-left: auto;
    display: flex;
    gap: 0.4rem;
}
.search-form input {
    background: var(--cdn-dark);
    border: 1px solid var(--cdn-border);
    color: var(--cdn-text);
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    font-size: 0.875rem;
    width: 180px;
}
.search-form input:focus { outline: none; border-color: var(--cdn-accent); }
.search-form button {
    background: var(--cdn-accent);
    border: none;
    color: #000;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
}

/* ── Main layout ─────────────────────────────────────────────────────────── */

.site-main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 2rem 1rem;
}

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

.hero {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--cdn-border);
}
.hero h1 { font-size: 2rem; font-weight: 800; line-height: 1.25; margin-bottom: 0.5rem; }
.hero p { color: var(--cdn-muted); max-width: 600px; }

/* ── Article grid ────────────────────────────────────────────────────────── */

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.article-card {
    background: var(--cdn-surface);
    border: 1px solid var(--cdn-border);
    border-radius: var(--cdn-radius);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    transition: border-color 0.15s;
}
.article-card:hover { border-color: var(--cdn-accent); }

.article-card-cats { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.article-card-cat {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--cdn-accent);
    background: rgba(247,147,26,.12);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.article-card h2 {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.35;
}
.article-card h2 a { color: var(--cdn-text); }
.article-card h2 a:hover { color: var(--cdn-accent); text-decoration: none; }

.article-card-excerpt { font-size: 0.875rem; color: var(--cdn-muted); flex: 1; }
.article-card-meta { font-size: 0.75rem; color: var(--cdn-muted); margin-top: auto; }

/* ── Pagination ──────────────────────────────────────────────────────────── */

.pagination { display: flex; gap: 0.4rem; justify-content: center; margin: 2rem 0; }
.pagination a, .pagination span {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--cdn-border);
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--cdn-text);
}
.pagination a:hover { border-color: var(--cdn-accent); text-decoration: none; }
.pagination .active { background: var(--cdn-accent); border-color: var(--cdn-accent); color: #000; font-weight: 700; }

/* ── Article page ────────────────────────────────────────────────────────── */

.article-header { margin-bottom: 2rem; }
.article-header h1 { font-size: 2rem; font-weight: 800; line-height: 1.25; margin-bottom: 0.75rem; }
.article-meta { font-size: 0.875rem; color: var(--cdn-muted); display: flex; gap: 1rem; flex-wrap: wrap; }

.article-body {
    max-width: 780px;
    font-size: 1.05rem;
    line-height: 1.8;
}
.article-body h2, .article-body h3 { margin: 1.5rem 0 0.75rem; font-weight: 700; }
.article-body p { margin-bottom: 1rem; }
.article-body a { color: var(--cdn-accent); }
.article-body ul, .article-body ol { padding-left: 1.5rem; margin-bottom: 1rem; }
.article-body blockquote {
    border-left: 4px solid var(--cdn-accent);
    padding: 0.5rem 1rem;
    color: var(--cdn-muted);
    margin: 1.5rem 0;
    font-style: italic;
}

/* ── Page title ──────────────────────────────────────────────────────────── */

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--cdn-border);
}

/* ── Search form (page) ──────────────────────────────────────────────────── */

.search-page-form { display: flex; gap: 0.5rem; margin-bottom: 2rem; }
.search-page-form input {
    flex: 1;
    background: var(--cdn-surface);
    border: 1px solid var(--cdn-border);
    color: var(--cdn-text);
    padding: 0.6rem 1rem;
    border-radius: 8px;
    font-size: 1rem;
}
.search-page-form button {
    background: var(--cdn-accent);
    border: none;
    color: #000;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
}

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

.site-footer {
    background: var(--cdn-surface);
    border-top: 1px solid var(--cdn-border);
    padding: 2rem 1rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--cdn-muted);
    margin-top: auto;
}
.site-footer a { color: var(--cdn-muted); }
.site-footer a:hover { color: var(--cdn-text); }

/* ── 404 ─────────────────────────────────────────────────────────────────── */

.error-page { text-align: center; padding: 4rem 1rem; }
.error-page h1 { font-size: 5rem; color: var(--cdn-accent); font-weight: 900; }
.error-page p { color: var(--cdn-muted); margin: 1rem 0 2rem; }
.error-page a { color: var(--cdn-accent); font-weight: 600; }

@media (max-width: 600px) {
    .site-header .inner { flex-wrap: wrap; height: auto; padding: 0.75rem 1rem; }
    .site-nav { display: none; }
    .search-form { margin-left: 0; }
    .articles-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 1.5rem; }
    .article-header h1 { font-size: 1.4rem; }
}