:root{color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;--bg: #ffffff;--text: #0f172a;--muted-text: #475569;--accent: #0ea5e9;--chip-border: #e5e7eb;--soft-bg: #f8fafc;--soft-border: #e5e7eb;--btn-bg: #0ea5e9;--btn-text: #ffffff}@media (prefers-color-scheme: dark){:root{--bg: #0b1220;--text: #e2e8f0;--muted-text: #94a3b8;--accent: #38bdf8;--chip-border: #334155;--soft-bg: #1f2937;--soft-border: #334155;--btn-bg: #0ea5e9;--btn-text: #0b1220}}body,html,#app{margin:0;padding:0;height:100%}.app{min-height:100%;padding:16px;background:var(--bg);color:var(--text)}.header{max-width:960px;margin:0 auto 12px}.head-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.left{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.header h1{font-size:22px;margin:0}.header a{color:inherit;text-decoration:none}.lang{display:flex;gap:6px}.lang button{padding:4px 8px;border-radius:8px;border:1px solid var(--chip-border);background:transparent;cursor:pointer;color:var(--text)}.lang button.active{border-color:var(--accent);color:var(--accent)}.back{padding:4px 8px;border-radius:8px;border:1px solid var(--soft-border);background:var(--soft-bg);color:var(--text);cursor:pointer}.back.large{font-size:16px;padding:8px 12px}.subhead{margin-top:20px;display:flex;align-items:center;gap:8px}.route-chip{font-weight:700;border:1px solid var(--chip-border);padding:2px 8px;border-radius:999px;color:var(--text)}button{padding:8px 12px;border-radius:8px;border:1px solid var(--btn-bg);background:var(--btn-bg);color:var(--btn-text);cursor:pointer}