:root {
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --card-bg: rgba(240, 240, 240, 0.8);
    --card-border: rgba(0, 0, 0, 0.05);
    --accent: #3498db;
    --transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

[data-theme='dark'] {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --card-bg: rgba(30, 41, 59, 0.6);
    --card-border: rgba(255, 255, 255, 0.1);
    --accent: #60a5fa;
}

body { font-family: 'Inter', system-ui, -apple-system, sans-serif; background: var(--bg-color); color: var(--text-color); margin: 0; display: flex; flex-direction: column; min-height: 100vh; transition: var(--transition); }
.container { max-width: 800px; margin: 0 auto; padding: 20px; }
header { padding: 0.75rem 0; background: var(--bg-color); border-bottom: 1px solid var(--card-border); }
nav.container { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.logo { display: inline-flex; align-items: center; gap: 12px; color: var(--text-color); flex-shrink: 0; }
.logo img { display: block; max-height: 56px; width: auto; }
.brand-wordmark { display: inline-flex; align-items: baseline; gap: 0.2em; font-family: "Roboto Condensed", "Oswald", "Arial Narrow", "Segoe UI Condensed", Arial, sans-serif; font-size: 1.72rem; font-style: normal; font-weight: 700; line-height: 1; letter-spacing: 0.01em; white-space: nowrap; text-transform: uppercase; font-stretch: condensed; }
.brand-main { color: #3498DB; }
.brand-accent { color: #f04a14; }
.main-menu { display: flex; align-items: center; justify-content: center; gap: 18px; flex: 1; flex-wrap: wrap; }
.main-menu a { color: var(--text-color); font-size: 0.95rem; }
.main-menu a:hover { color: var(--accent); }
.site-search input { width: 130px; padding: 8px 10px; border: 1px solid var(--card-border); border-radius: 8px; background: var(--card-bg); color: var(--text-color); }
.news-grid { display: grid; gap: 30px; margin-top: 40px; }
.news-item { background: var(--card-bg); padding: 30px; border-radius: 24px; border: 1px solid var(--card-border); backdrop-filter: blur(12px); transition: var(--transition); }
.news-item:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
h1 { font-size: 2.4rem; letter-spacing: -0.05em; margin-bottom: 1.75rem; }
a { color: var(--accent); text-decoration: none; font-weight: 600; }
.btn-toggle { background: transparent; border: 0; color: var(--accent); padding: 6px; cursor: pointer; width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; }
.theme-icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.theme-icon-sun { display: block; }
.theme-icon-moon { display: none; }
[data-theme='dark'] .theme-icon-sun { display: none; }
[data-theme='dark'] .theme-icon-moon { display: block; }
footer { text-align: center; padding: 40px; color: #94a3b8; }
.footer-menu { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 14px; }
.footer-menu a { color: inherit; }
.footer-widgets { display: grid; gap: 16px; margin: 20px auto; max-width: 800px; }
.footer-widget { color: var(--text-color); }
.content { line-height: 1.8; font-size: 1.1rem; }
.meta { color: #94a3b8; margin-bottom: 1.5rem; }
.thumbnail { margin-bottom: 10px; border-radius: 8px; overflow: hidden; aspect-ratio: 16 / 9; }
.thumbnail a { display: block; width: 100%; height: 100%; }
.thumbnail img { width: 100%; height: 100%; object-fit: cover; display: block; }
.featured-image { margin: 1.5rem 0 2rem; }
.featured-image { border-radius: 8px; overflow: hidden; aspect-ratio: 16 / 9; }
.featured-image img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; display: block; }
.tag-helper { position: relative; }
.tag-chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.tag-chip { display: inline-flex; align-items: center; padding: 6px 10px; border: 1px solid var(--card-border); border-radius: 8px; background: var(--card-bg); font-size: 0.92rem; }
.tag-chip.is-existing { color: var(--text-color); }
.tag-chip.is-new { color: var(--accent); }
.tag-suggestions { position: absolute; left: 0; right: 0; top: calc(100% + 8px); z-index: 10; display: flex; flex-direction: column; gap: 6px; padding: 10px; border: 1px solid var(--card-border); border-radius: 8px; background: var(--bg-color); box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12); }
.tag-suggestion { text-align: left; width: 100%; background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 8px; padding: 8px 10px; color: var(--text-color); cursor: pointer; }
.tag-suggestion:hover { border-color: var(--accent); color: var(--accent); }
.pagination { display: flex; gap: 10px; margin-top: 30px; flex-wrap: wrap; }
.pagination a, .pagination span { padding: 8px 12px; border: 1px solid var(--card-border); border-radius: 8px; }
.pagination .current { background: var(--accent); color: #fff; }
.related-grid { display: grid; gap: 18px; margin-top: 20px; }
.related-reason { margin: 8px 0 10px; color: #7daee6; font-size: 0.92em; font-weight: 600; }
.comments { margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--card-border); }
.comments-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.comments-header h2 { margin: 0; font-size: 1.55rem; letter-spacing: 0; }
.comment-list { display: grid; gap: 14px; margin-bottom: 24px; }
.comment { padding: 16px; border: 1px solid var(--card-border); border-radius: 8px; background: var(--card-bg); }
.comment-author { font-weight: 800; margin-bottom: 6px; }
.comment p { margin: 0; line-height: 1.6; }
.comment-empty, .comment-notice { padding: 14px 16px; border-radius: 8px; border: 1px dashed var(--card-border); background: var(--card-bg); color: #94a3b8; }
.comment-notice { border-style: solid; color: var(--text-color); margin-bottom: 16px; }
.comment-form { display: grid; gap: 12px; padding: 16px; border: 1px solid var(--card-border); border-radius: 8px; background: var(--card-bg); }
.comment-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.comment-form input, .comment-form textarea { display: block; width: 100%; box-sizing: border-box; border: 1px solid var(--card-border); border-radius: 8px; padding: 12px 14px; background: var(--bg-color); color: var(--text-color); font: inherit; appearance: none; }
.comment-form textarea { resize: vertical; min-height: 120px; }
.comment-form-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.comment-form-actions span { color: #94a3b8; font-size: 0.92rem; }
.comment-form button { border: 0; border-radius: 8px; padding: 12px 18px; background: var(--accent); color: #fff; font: inherit; font-weight: 800; cursor: pointer; }
.comment-form button:hover { filter: brightness(0.95); }
.video-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; margin: 20px 0; border-radius: 12px; }
.video-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }
@media (max-width: 700px) {
    nav.container { align-items: flex-start; flex-wrap: wrap; }
    .brand-wordmark { font-size: 1.45rem; }
    .main-menu { order: 3; justify-content: flex-start; width: 100%; }
    .site-search { order: 4; width: 100%; }
    .site-search input { width: 100%; }
    .comment-fields { grid-template-columns: 1fr; }
}