:root {
  --bg: #121418;
  --card: #22262c;
  --edge: rgba(255, 255, 255, .08);
  --text: #edeef0;
  --muted: #b8bec8;
  --accent: #3ccfc0;
  --on-accent: #00201d;
  --focus: #e8eef5;
  --warn: #f7c948;
  color-scheme: dark;
}
* { 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; }
body { padding: env(safe-area-inset-top) 16px calc(24px + env(safe-area-inset-bottom)); max-width: 560px; margin: 0 auto; }
.bar { display: flex; align-items: center; gap: 10px; padding: 18px 0 8px; }
.mark { width: 28px; height: 28px; color: var(--accent); }
.word { font-weight: 650; letter-spacing: -.01em; font-size: 19px; }
h1 { font-size: 26px; line-height: 1.2; margin: 18px 0 6px; font-weight: 650; }
h2 { font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin: 28px 0 10px; font-weight: 600; }
p { margin: 6px 0 12px; }
.note { color: var(--muted); font-size: 15px; }
.card { background: var(--card); border: 1px solid var(--edge); border-radius: 14px; padding: 16px; margin: 10px 0; }
label { display: block; font-size: 14px; color: var(--muted); margin: 12px 0 6px; }
input, select { width: 100%; min-height: 48px; padding: 0 14px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, .16); background: #171a1f; color: var(--text); font: inherit; }
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
button { min-height: 48px; padding: 0 20px; border-radius: 12px; border: 0; font: inherit; font-weight: 600; cursor: pointer; }
button.primary { background: var(--accent); color: var(--on-accent); width: 100%; margin-top: 16px; }
button.ghost { background: transparent; color: var(--text); border: 1px solid rgba(255, 255, 255, .35); }
button[disabled] { opacity: .5; cursor: default; }
.row { display: flex; gap: 10px; align-items: center; }
.row > input { flex: 1; }
.row > button { flex: none; }
.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--edge); }
.list li:first-child { border-top: 0; }
.list .meta { color: var(--muted); font-size: 14px; }
.fp { font: 600 24px/1.3 ui-monospace, "SF Mono", Consolas, monospace; letter-spacing: .04em; text-align: center; padding: 14px; border-radius: 10px; background: #171a1f; margin: 10px 0; }
.ok { color: var(--accent); }
.err { color: var(--warn); }
.seg { display: flex; background: #1a1d24; border-radius: 10px; padding: 4px; gap: 4px; }
.seg button { flex: 1; min-height: 40px; background: transparent; color: var(--muted); }
.seg button[aria-pressed="true"] { background: var(--focus); color: #0e1116; }
.check { display: flex; align-items: center; gap: 10px; min-height: 44px; color: var(--text); font-size: 16px; margin: 0; }
.check input { width: 22px; min-height: 22px; accent-color: var(--accent); }
.wide { width: 100%; margin-top: 10px; }
.wide.far { margin-top: 24px; }
.gap-top { margin-top: 12px; }
fieldset.plain { border: 0; padding: 0; margin: 14px 0 0; }

.mono { font-family: ui-monospace, Consolas, monospace; word-break: break-all; user-select: all; }