:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0b1210;--surface:#141d1b;--surface2:#1b2724;--line:#26332f;--ink:#ebf1ed;--muted:#9baba4;--accent:#4bc9b5;--accent-ink:#06201b;--danger:#ff7183;--warn:#e8ac4b;--radius:16px;font-family:system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--ink);margin:0}body{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);-webkit-tap-highlight-color:transparent}#root{flex-direction:column;gap:16px;max-width:640px;min-height:100dvh;margin:0 auto;padding:16px;display:flex}h1{margin:8px 0 0;font-size:28px}h2{margin:0 0 8px;font-size:18px}p{margin:0;line-height:1.45}.muted{color:var(--muted);font-size:14px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;gap:12px;padding:16px;display:flex}.row{align-items:center;gap:12px;display:flex}.row.between{justify-content:space-between}.grid2{grid-template-columns:1fr 1fr;gap:12px;display:grid}button,.btn{font:inherit;background:var(--surface2);color:var(--ink);cursor:pointer;border:0;border-radius:14px;width:100%;min-height:56px;padding:16px 18px;font-size:17px;font-weight:600}button.primary{background:var(--accent);color:var(--accent-ink)}button.big{flex-direction:column;justify-content:center;gap:4px;min-height:96px;font-size:22px;display:flex}button.big small{color:inherit;opacity:.75;font-size:13px;font-weight:400}button:disabled{opacity:.5;cursor:default}button.ghost{border:1px solid var(--line);background:0 0}input,textarea,select{font:inherit;background:var(--surface2);width:100%;color:var(--ink);border:1px solid var(--line);border-radius:12px;min-height:56px;padding:14px;font-size:18px}textarea{resize:vertical;min-height:96px}.error{color:var(--danger);font-size:15px}.warn{color:var(--warn);font-size:15px}.meter{background:var(--surface2);border-radius:99px;height:10px;overflow:hidden}.meter>div{background:var(--accent);border-radius:99px;height:100%;transition:width .3s}.meter.over>div{background:var(--danger)}.result{font-size:24px;line-height:1.35}.result[dir=rtl]{text-align:right}.tag{background:var(--surface2);color:var(--muted);border-radius:99px;padding:3px 8px;font-size:12px;display:inline-block}.list{color:var(--muted);flex-direction:column;gap:6px;font-size:13px;display:flex}.topbar{justify-content:space-between;align-items:center;display:flex}.link{color:var(--accent);background:0 0;border:0;width:auto;min-height:0;padding:8px 0;font-size:16px}.converse{background:var(--bg);padding:env(safe-area-inset-top) 0 env(safe-area-inset-bottom);grid-template-rows:1fr auto 1fr;display:grid;position:fixed;inset:0}.half{flex-direction:column;gap:6px;min-height:0;padding:10px 14px;display:flex}.half-local{background:var(--surface);transform:rotate(180deg)}.half-head{justify-content:space-between;align-items:center;font-size:14px;display:flex}.half-list{flex-direction:column;flex:1;justify-content:flex-end;gap:8px;min-height:0;display:flex;overflow-y:auto}.line{color:var(--muted);font-size:17px;line-height:1.35}.line.last{color:var(--ink);font-size:28px;line-height:1.3}.line.last.faint{color:var(--muted);font-size:20px}.line .note{margin-top:4px;font-size:13px}.typebox{gap:8px;display:flex}.typebox input{min-height:48px;padding:10px 12px}.bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg);flex-direction:column;gap:8px;padding:8px 12px;display:flex}.bar-row{justify-content:space-between;align-items:center;gap:8px;display:flex}.bar-row button{flex:1;width:auto}.status{color:var(--muted);font-size:14px}.status-listening{color:var(--accent)}.status-processing{color:var(--warn)}.status-speaking{color:var(--ink)}.status-error{color:var(--danger)}.small-btn{min-height:44px;padding:8px 10px;font-size:14px}.tiny{touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;width:auto;min-height:36px;padding:6px 12px;font-size:14px}.ghost.active{border-color:var(--accent);color:var(--accent)}.error.small{font-size:13px}.phrase .result{font-size:20px}.field{flex-direction:column;gap:4px;display:flex}.field select{min-height:48px}.learn{flex-direction:column;flex:1;gap:12px;min-height:0;display:flex}.chips{flex-wrap:wrap;gap:8px;display:flex}.chat{flex-direction:column;flex:1;gap:10px;display:flex}.bubble{border-radius:16px;max-width:92%;padding:12px 14px;font-size:17px;line-height:1.4}.bubble.me{background:var(--accent);color:var(--accent-ink);border-bottom-right-radius:4px;align-self:flex-end}.bubble.tutor{background:var(--surface);border:1px solid var(--line);border-bottom-left-radius:4px;flex-direction:column;align-self:flex-start;gap:6px;display:flex}.bubble.tutor .reply-ms{font-size:20px}.bubble.tutor .tiny{align-self:flex-start}.tutor-block{flex-direction:column;gap:8px;display:flex}.card.correction{gap:8px;padding:12px 14px}.card.correction.ok{border-color:var(--good-line,#1c4531)}.card.correction .result{font-size:20px}.strike{text-decoration:line-through}.registers{gap:8px}.registers p{margin-top:4px}.tag.formal{color:#8fb6ff;background:#1c2d45}.tag.casual{color:var(--warn);background:#3a2a12}.tag.mixed{background:var(--surface2)}.tag.good{color:#54d08f;background:#0f2a1d}.tag.fix{color:var(--danger);background:#2c1519}.composer{padding:8px 0 env(safe-area-inset-bottom);background:var(--bg);gap:8px;display:flex;position:sticky;bottom:0}.composer input{min-height:48px;padding:10px 12px}.composer button{width:auto;min-width:72px}.version{text-align:center;opacity:.7;margin-top:auto;font-size:12px}.diag{color:var(--muted);background:var(--surface);border:1px solid var(--line);white-space:pre-wrap;border-radius:10px;max-height:160px;margin:0;padding:8px 10px;font:12px/1.4 ui-monospace,Menlo,monospace;overflow:auto}.link.tiny{min-height:0;padding:0 4px;font-size:13px}.mic{touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;border-radius:14px;width:64px;min-width:64px;min-height:48px;font-size:14px}.mic.holding{background:var(--accent);color:var(--accent-ink)}.mic.call{opacity:.5}.pron{border-top:1px solid var(--line);padding-top:8px}.pron:first-of-type{border-top:0;padding-top:0}.practice{border-color:#1c4531}.small{font-size:12px}