:root {
  --bg: #12141a; --card: #1b1f2a; --text: #e8eaf0; --muted: #9aa3b5;
  --accent: #4f8cff; --good: #3ecf8e; --warn: #ffb454; --bad: #ff6b6b; --border: #2a3040;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: var(--accent); }
.container { max-width: 860px; margin: 0 auto; padding: 0 16px 48px; }

.site-nav { display: flex; justify-content: space-between; align-items: center; padding: 14px 24px; border-bottom: 1px solid var(--border); }
.site-nav .brand { color: var(--text); text-decoration: none; font-weight: 700; }
.site-nav .links a { margin-left: 18px; text-decoration: none; }

.hero { text-align: center; padding: 48px 16px 24px; }
.hero h1 { margin: 0 0 8px; font-size: 2rem; }
.hero p { color: var(--muted); max-width: 640px; margin: 0 auto; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px 24px; margin: 20px 0; }
.card h2 { margin-top: 0; font-size: 1.25rem; }

.field { margin: 14px 0; }
.field label { display: block; font-weight: 600; margin-bottom: 4px; }
.field input[type="text"], .field textarea {
  width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 10px; font: inherit;
}

.mode-row { display: flex; gap: 12px; flex-wrap: wrap; }
.mode { flex: 1 1 240px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 12px; cursor: pointer; }
.mode:has(input:checked) { border-color: var(--accent); }

.q-section { border-top: 1px solid var(--border); margin-top: 18px; padding-top: 12px; }
.q-section h3 { margin: 0 0 8px; }
.badge { background: var(--warn); color: #000; font-size: 0.7rem; border-radius: 4px; padding: 2px 6px; vertical-align: middle; }
.q { padding: 10px 0; border-bottom: 1px dashed var(--border); }
.q-text { margin: 0 0 6px; }
.q-answers { display: flex; gap: 14px; flex-wrap: wrap; }
.ans { cursor: pointer; color: var(--muted); }
.ans:has(input:checked) { color: var(--good); font-weight: 700; }
.hint { color: var(--muted); font-size: 0.95rem; }

.btn-primary { background: var(--accent); color: #fff; border: 0; border-radius: 8px; padding: 12px 28px; font-size: 1.05rem; font-weight: 700; cursor: pointer; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-ai { background: transparent; color: var(--accent); border: 2px solid var(--accent); border-radius: 8px; padding: 11px 24px; font-size: 1.05rem; font-weight: 700; cursor: pointer; margin-left: 10px; }
.btn-ai:hover { background: rgba(79,140,255,0.12); }
.btn-ai:disabled { opacity: 0.5; cursor: wait; }
.good { color: var(--good); font-weight: 700; }
.bad { color: var(--bad); font-weight: 700; }
.warn2 { color: var(--warn); }

.hidden { display: none; }
.result { margin-top: 20px; }
.score-big { font-size: 3rem; font-weight: 800; color: var(--good); }
.score-big span { font-size: 1.4rem; color: var(--text); }
.mode-note { color: var(--muted); }
.score-table { width: 100%; border-collapse: collapse; margin: 12px 0; }
.score-table th, .score-table td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.score-table th { background: var(--bg); }
.warn { color: var(--warn); }
.fixes li { margin: 6px 0; }
.verdict { border-left: 3px solid var(--accent); padding-left: 12px; color: var(--muted); }

footer { text-align: center; color: var(--muted); padding: 24px; border-top: 1px solid var(--border); }