/* PassPhrase — iOS-native minimalism. System type, generous touch targets,
   light/dark aware, safe-area respectful. */

:root {
  --bg: #f2f2f7;
  --card: #ffffff;
  --ink: #1c1c1e;
  --ink-2: #6e6e73;
  --line: rgba(60, 60, 67, 0.12);
  --tint: #0a66ff;
  --danger: #e63b30;
  --hue: 216; /* per-contact accent, set from JS */
  --accent: hsl(var(--hue) 72% 46%);
  --accent-soft: hsl(var(--hue) 72% 46% / 0.14);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --card: #1c1c1e;
    --ink: #f2f2f7;
    --ink-2: #98989f;
    --line: rgba(84, 84, 88, 0.5);
    --tint: #3d86ff;
    --danger: #ff5f57;
    --accent: hsl(var(--hue) 80% 62%);
    --accent-soft: hsl(var(--hue) 80% 62% / 0.16);
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: none;
}

[hidden] { display: none !important; }
.screen {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  max-width: 520px;
  margin: 0 auto;
  padding: env(safe-area-inset-top) max(16px, env(safe-area-inset-right))
           calc(96px + env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  animation: screen-in 0.28s ease both;
}
@keyframes screen-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .screen, .word { animation: none !important; transition: none !important; }
}

/* ---- headers ---- */
.top { padding: 18px 4px 12px; }
.top h1 { font-size: 32px; font-weight: 800; letter-spacing: -0.4px; }
.top.nav {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 0 12px;
}
.nav-title {
  flex: 1; text-align: center;
  font-size: 17px !important; font-weight: 600 !important;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.back {
  border: 0; background: none; color: var(--tint);
  font-size: 34px; line-height: 1; font-weight: 500;
  width: 44px; height: 44px; border-radius: 22px;
  cursor: pointer; flex: none;
  display: flex; align-items: center; justify-content: center;
  padding-bottom: 4px;
}
.nav-spacer { width: 44px; flex: none; }

/* ---- home list ---- */
.list { display: flex; flex-direction: column; gap: 10px; }
.contact {
  display: flex; align-items: center; gap: 14px;
  background: var(--card);
  border-radius: 16px;
  padding: 18px 16px;
  min-height: 64px;
  border: 0; width: 100%; text-align: left;
  font: inherit; color: inherit; cursor: pointer;
}
.contact:active { filter: brightness(0.96); }
.contact .dot {
  width: 14px; height: 14px; border-radius: 50%;
  background: hsl(var(--h) 72% 50%);
  flex: none;
}
.contact .c-name { flex: 1; font-size: 19px; font-weight: 600; }
.contact .c-lang { color: var(--ink-2); font-size: 13px; }
.contact .chev { color: var(--ink-2); font-size: 22px; }

.empty { text-align: center; margin: auto 12px; padding-bottom: 40px; }
.empty h2 { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.empty p { color: var(--ink-2); font-size: 16px; line-height: 1.45; }
.empty-art {
  display: flex; gap: 10px; justify-content: center; margin-bottom: 22px;
}
.empty-art span {
  display: block; height: 18px; border-radius: 9px;
  background: var(--accent-soft);
}
.empty-art span:nth-child(1) { width: 84px; }
.empty-art span:nth-child(2) { width: 56px; background: var(--accent); opacity: 0.35; }

/* ---- buttons ---- */
.bottom-bar {
  position: fixed; left: 0; right: 0; bottom: 0;
  padding: 12px max(16px, env(safe-area-inset-right))
           calc(12px + env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  display: flex; flex-direction: column; gap: 8px;
  max-width: 520px; margin: 0 auto;
  background: linear-gradient(to top, var(--bg) 70%, transparent);
}
.bottom-bar.in-form { position: static; padding: 24px 0 0; background: none; margin: 0; width: 100%; }
button.primary, button.secondary {
  font: inherit; font-size: 18px; font-weight: 600;
  min-height: 54px; border-radius: 16px; border: 0;
  cursor: pointer; width: 100%;
}
button.primary { background: var(--tint); color: #fff; }
button.primary:active { filter: brightness(0.9); }
button.secondary { background: var(--card); color: var(--tint); }
button.secondary:active { filter: brightness(0.94); }
button.quiet {
  font: inherit; font-size: 16px; font-weight: 500;
  background: none; border: 0; color: var(--tint);
  min-height: 44px; cursor: pointer;
}
button.quiet.danger { color: var(--danger); }

/* ---- verify ---- */
.words-stage {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 26px;
  text-align: center; padding-bottom: 30px;
}
.words { display: flex; flex-direction: column; gap: 6px; }
.word {
  font-family: ui-rounded, -apple-system, system-ui, sans-serif;
  font-size: clamp(40px, 11.5vw, 56px);
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--accent);
  line-height: 1.15;
  animation: word-in 0.45s ease both;
}
.word + .word { color: var(--ink); }
@keyframes word-in {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: none; }
}

.ring-wrap { position: relative; width: 72px; height: 72px; }
.ring-bg, .ring-fg {
  fill: none; stroke-width: 5; stroke-linecap: round;
}
.ring-bg { stroke: var(--accent-soft); }
.ring-fg {
  stroke: var(--accent);
  stroke-dasharray: 188.5;
  transform: rotate(-90deg); transform-origin: 36px 36px;
  transition: stroke-dashoffset 0.5s linear;
}
.ring-time {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink-2);
}
.prev-hint { color: var(--ink-2); font-size: 15px; }
.verify-hint { color: var(--ink-2); font-size: 15px; max-width: 300px; line-height: 1.4; }

.verify-actions {
  display: flex; justify-content: center; gap: 26px;
  padding-bottom: env(safe-area-inset-bottom);
}

/* ---- forms ---- */
.form { display: flex; flex-direction: column; gap: 10px; padding-top: 8px; }
.form label { font-size: 15px; font-weight: 600; color: var(--ink-2); margin-top: 14px; }
.form input[type="text"] {
  font: inherit; font-size: 19px;
  background: var(--card); color: var(--ink);
  border: 0; border-radius: 14px;
  padding: 16px; min-height: 54px;
  outline: none;
}
.form input:focus-visible { box-shadow: 0 0 0 2px var(--tint); }

.seg {
  display: flex; background: var(--card); border-radius: 14px; padding: 4px; gap: 4px;
}
.seg-btn {
  flex: 1; font: inherit; font-size: 16px; font-weight: 600;
  min-height: 46px; border-radius: 11px; border: 0;
  background: none; color: var(--ink-2); cursor: pointer;
}
.seg-btn.selected { background: var(--tint); color: #fff; }

/* ---- share ---- */
.share { display: flex; flex-direction: column; gap: 14px; padding-top: 6px; }
.share-step {
  background: var(--card); border-radius: 18px; padding: 18px;
  display: flex; flex-direction: column; gap: 12px;
}
.share-step h3 { font-size: 16px; font-weight: 600; line-height: 1.35; }
.pin-display {
  font-family: ui-rounded, -apple-system, system-ui, sans-serif;
  font-size: 54px; font-weight: 800; letter-spacing: 14px;
  text-align: center; text-indent: 14px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.note { color: var(--ink-2); font-size: 14px; line-height: 1.4; }
.qr-box { display: flex; flex-direction: column; align-items: center; gap: 10px; }
#qr-canvas {
  width: min(78vw, 300px); height: auto;
  border-radius: 12px; background: #fff; padding: 10px;
}

/* ---- backup ---- */
.words-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px;
  background: var(--accent-soft); border-radius: 14px; padding: 16px;
  counter-reset: w;
}
.words-grid span {
  font-size: 17px; font-weight: 600; counter-increment: w;
  overflow-wrap: anywhere;
}
.words-grid span::before {
  content: counter(w) ".\00a0";
  color: var(--ink-2); font-weight: 500;
  font-variant-numeric: tabular-nums;
}
textarea.words-input {
  font: inherit; font-size: 17px;
  background: var(--bg); color: var(--ink);
  border: 0; border-radius: 12px; padding: 14px;
  min-height: 92px; width: 100%; outline: none; resize: vertical;
}
textarea.words-input:focus-visible { box-shadow: 0 0 0 2px var(--tint); }
.note.stale { color: #c77700; font-weight: 600; }
@media (prefers-color-scheme: dark) { .note.stale { color: #ffb340; } }
.stale-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: #ff9f0a; margin-left: 7px; vertical-align: 2px;
}

/* ---- join ---- */
.join { text-align: center; align-items: center; }
.join p { font-size: 17px; line-height: 1.4; max-width: 320px; }
.pin-input {
  font-family: ui-rounded, -apple-system, system-ui, sans-serif;
  font-size: 44px; font-weight: 800;
  letter-spacing: 18px; text-indent: 18px; text-align: center;
  width: 240px; min-height: 72px;
  background: var(--card); color: var(--ink);
  border: 0; border-radius: 16px; outline: none;
  font-variant-numeric: tabular-nums;
}
.pin-input:focus-visible { box-shadow: 0 0 0 2px var(--tint); }
.error { color: var(--danger); font-size: 15px; font-weight: 600; }
.join .bottom-bar { width: 100%; }