:root {
  --bg: var(--tg-theme-bg-color, #f4f5fb);
  --text: var(--tg-theme-text-color, #171827);
  --muted: var(--tg-theme-hint-color, #73758a);
  --card: var(--tg-theme-secondary-bg-color, #ffffff);
  --accent: var(--tg-theme-button-color, #6d5efc);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --border: color-mix(in srgb, var(--text) 10%, transparent);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); min-height: 100vh; }
button { color: inherit; font: inherit; }
.shell { width: min(100%, 680px); margin: auto; padding: calc(18px + env(safe-area-inset-top)) 16px calc(22px + env(safe-area-inset-bottom)); }
.hero { display: flex; justify-content: space-between; align-items: start; padding: 12px 2px 20px; }
.eyebrow { color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .14em; margin: 0; }
h1 { font-size: 28px; margin: 6px 0 3px; } h2 { font-size: 16px; margin: 0; }
.muted, .stage p { color: var(--muted); margin: 0; }
.icon-button { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--border); background: var(--card); font-size: 22px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 24px; }
.stats article { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 15px 8px; text-align: center; box-shadow: 0 8px 24px #00000008; }
.stats strong { display: block; font-size: 20px; }.stats span { color: var(--muted); font-size: 12px; }
.section-title { display: flex; justify-content: space-between; align-items: center; margin: 0 2px 10px; }.section-title span { color: var(--muted); font-size: 12px; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.feature-grid button { min-height: 112px; text-align: left; border: 1px solid var(--border); background: var(--card); border-radius: 20px; padding: 14px; transition: transform .15s, border-color .15s; }
.feature-grid button:active { transform: scale(.97); }.feature-grid button.active { border-color: var(--accent); }
.feature-grid b { font-size: 28px; display: block; margin-bottom: 9px; }.feature-grid strong { display: block; }.feature-grid span { color: var(--muted); font-size: 12px; }
.stage { background: var(--card); border: 1px solid var(--border); border-radius: 24px; min-height: 280px; margin-top: 14px; padding: 18px; box-shadow: 0 10px 32px #0000000a; }
.empty-state { text-align: center; padding: 54px 10px; }.empty-state div { font-size: 40px; }.empty-state h2 { margin: 10px 0 6px; }
.primary, .choice { border: 0; border-radius: 14px; min-height: 48px; padding: 0 18px; font-weight: 750; }.primary { background: var(--accent); color: var(--accent-text); }.secondary { background: transparent; border: 1px solid var(--border); border-radius: 14px; min-height: 48px; padding: 0 18px; }
.center { text-align: center; }.camera-box { position: relative; min-height: 220px; border-radius: 18px; background: #12131a; overflow: hidden; display: grid; place-items: center; color: white; }.camera-box video, .camera-box img { width: 100%; height: 250px; object-fit: cover; }.actions { display: flex; justify-content: center; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.result { margin-top: 12px; padding: 14px; border-radius: 16px; background: color-mix(in srgb, var(--accent) 9%, var(--card)); text-align: left; }.result h3 { margin: 0 0 4px; }.result p { margin: 3px 0; }
.word { font-size: 34px; font-weight: 800; margin: 42px 0 8px; }.choices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 24px; }.choice { border: 1px solid var(--border); background: transparent; }.correct { background: #1f9d64 !important; color: white; }.wrong { background: #d84b58 !important; color: white; }
.pill { display: inline-block; color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); border-radius: 999px; padding: 6px 10px; font-size: 12px; font-weight: 700; }
footer { display: flex; justify-content: center; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; padding: 16px 0 0; }footer span:first-child { width: 7px; height: 7px; background: #f0a11a; border-radius: 50%; }
body.manual-dark { --bg: #101116; --text: #f4f4f7; --muted: #999bad; --card: #191b23; --border: #2a2d38; }
input[type=file] { display: none; }