:root {
  --bg: #0f1115; --panel: #171a21; --panel2: #1f232d; --line: #2a2f3a;
  --text: #e8eaf0; --muted: #8b92a5; --accent: #c8f04a; --accent-ink: #0f1115;
  --danger: #ff5d5d; --ok: #57d38c; --warn: #ffb648;
  --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; -webkit-tap-highlight-color: transparent; }
body { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
a { color: var(--accent); }
h1 { font-size: 22px; margin: 0 0 12px; }
h2 { font-size: 17px; margin: 22px 0 8px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; font-weight: 600; }
main { padding: 18px 16px; max-width: 720px; margin: 0 auto; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.row { display: flex; gap: 10px; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.spacer { flex: 1; }

button, .btn { appearance: none; border: 0; border-radius: 12px; padding: 12px 16px; font: inherit; font-weight: 600; background: var(--panel2); color: var(--text); cursor: pointer; min-height: 44px; }
button.primary { background: var(--accent); color: var(--accent-ink); }
button.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); }
button:disabled { opacity: .45; cursor: default; }
button.block { width: 100%; }

input, select, textarea { width: 100%; font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px; min-height: 44px; }
textarea { min-height: 80px; resize: vertical; }
label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; margin: 10px 0; }
.card.tap { cursor: pointer; }
.card.tap:active { background: var(--panel2); }
.pill { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--panel2); color: var(--muted); }
.pill.ready { background: rgba(87,211,140,.15); color: var(--ok); }
.pill.busy { background: rgba(255,182,72,.15); color: var(--warn); }
.pill.error { background: rgba(255,93,93,.15); color: var(--danger); }
.pill.recording { background: rgba(255,93,93,.15); color: var(--danger); }
.tag { display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 12px; font-weight: 700; letter-spacing: .03em; }
.tag.ADD { background: rgba(87,211,140,.15); color: var(--ok); }
.tag.CHANGE { background: rgba(255,182,72,.15); color: var(--warn); }
.tag.CONFLICT { background: rgba(255,93,93,.15); color: var(--danger); }
.tag.IGNORE { background: var(--panel2); color: var(--muted); }

/* record screen */
.rec-wrap { display: flex; flex-direction: column; align-items: center; gap: 18px; padding: 26px 0 10px; }
.rec-btn { width: 150px; height: 150px; border-radius: 50%; background: var(--danger); color: #fff; font-size: 18px; font-weight: 700; box-shadow: 0 0 0 10px rgba(255,93,93,.12); }
.rec-btn.on { background: var(--panel2); color: var(--text); box-shadow: 0 0 0 10px rgba(255,93,93,.28); animation: pulse 1.6s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 8px rgba(255,93,93,.25);} 50% { box-shadow: 0 0 0 18px rgba(255,93,93,.06);} 100% { box-shadow: 0 0 0 8px rgba(255,93,93,.25);} }
.timer { font-size: 40px; font-variant-numeric: tabular-nums; font-weight: 700; letter-spacing: .02em; }
.level { width: 100%; max-width: 320px; height: 8px; background: var(--panel2); border-radius: 4px; overflow: hidden; }
.level > div { height: 100%; width: 0; background: var(--accent); transition: width 80ms linear; }
.status-line { font-size: 13px; color: var(--muted); min-height: 20px; text-align: center; }

/* markdown */
.md h1 { font-size: 20px; margin: 4px 0 12px; }
.md h2 { font-size: 15px; margin: 20px 0 6px; color: var(--accent); text-transform: none; letter-spacing: 0; }
.md ul { padding-left: 20px; margin: 6px 0; }
.md li { margin: 4px 0; }
.md p { margin: 6px 0; }
.md code { background: var(--panel2); padding: 1px 5px; border-radius: 4px; font-size: 13px; }
.md .tbl { overflow-x: auto; }
.md table { border-collapse: collapse; width: 100%; font-size: 14px; }
.md th, .md td { border: 1px solid var(--line); padding: 6px 8px; text-align: left; vertical-align: top; }
.md th { background: var(--panel2); }
.quote { border-left: 3px solid var(--accent); padding: 6px 10px; margin: 8px 0; color: var(--text); font-style: italic; background: var(--panel2); border-radius: 0 8px 8px 0; }
.rule { display: grid; grid-template-columns: 70px 1fr; gap: 4px 10px; font-size: 14px; margin: 8px 0; }
.rule b { color: var(--muted); font-weight: 600; }
.error-box { background: rgba(255,93,93,.1); border: 1px solid var(--danger); border-radius: 10px; padding: 10px; font-size: 13px; word-break: break-word; }
progress { width: 100%; height: 8px; }

/* tab bar */
nav.tabs { position: fixed; left: 0; right: 0; bottom: 0; display: flex; background: var(--panel); border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom); z-index: 10; }
nav.tabs a { flex: 1; text-align: center; padding: 12px 4px 10px; color: var(--muted); text-decoration: none; font-size: 12px; font-weight: 600; position: relative; }
nav.tabs a.active { color: var(--accent); }
nav.tabs a .badge { position: absolute; top: 6px; right: calc(50% - 26px); background: var(--danger); color: #fff; border-radius: 999px; font-size: 10px; padding: 1px 6px; }
.toast { position: fixed; left: 50%; bottom: 90px; transform: translateX(-50%); background: var(--panel2); border: 1px solid var(--line); color: var(--text); padding: 10px 16px; border-radius: 10px; font-size: 14px; z-index: 20; max-width: 90vw; }