/* Layout: a vault workbench. The lock screen is one centered card under a combination dial;
   once unlocked, tabs switch between Encrypt / Decrypt / Vault / Keys, each an input -> result
   bench that stacks to one column on narrow screens. Light by default, dark when the system is. */

@font-face { font-family: 'Bricolage Grotesque'; font-weight: 600; font-display: swap; src: url('fonts/bricolage-grotesque-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Bricolage Grotesque'; font-weight: 700; font-display: swap; src: url('fonts/bricolage-grotesque-latin-700-normal.woff2') format('woff2'); }
@font-face { font-family: 'Public Sans'; font-weight: 400; font-display: swap; src: url('fonts/public-sans-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'Public Sans'; font-weight: 500; font-display: swap; src: url('fonts/public-sans-latin-500-normal.woff2') format('woff2'); }
@font-face { font-family: 'Public Sans'; font-weight: 600; font-display: swap; src: url('fonts/public-sans-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Martian Mono'; font-weight: 400; font-display: swap; src: url('fonts/martian-mono-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'Martian Mono'; font-weight: 500; font-display: swap; src: url('fonts/martian-mono-latin-500-normal.woff2') format('woff2'); }

:root {
  color-scheme: light;
  --bg: #ECEFEA;
  --surface: #FBFCFA;
  --sunken: #E2E7E0;
  --ink: #14191A;
  --muted: #56615C;
  --line: #CBD2CA;
  --vault: #1E5A48;        /* primary: vault-door green */
  --vault-ink: #F3F7F4;
  --brass: #A9741F;        /* the dial's brass */
  --ok: #1F6B45;
  --warn: #93570A;
  --danger: #A3261D;
  --info: #2A5B8A;
  --display: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --body: 'Public Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'Martian Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0E1312;
    --surface: #151B19;
    --sunken: #0B100E;
    --ink: #E3EAE5;
    --muted: #8D9993;
    --line: #28312E;
    --vault: #5BBF9C;
    --vault-ink: #04110C;
    --brass: #D8A24C;
    --ok: #5CC28C;
    --warn: #E2A54C;
    --danger: #F07D72;
    --info: #80B3E6;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh;
  background: var(--bg); color: var(--ink);
  font-family: var(--body); font-size: 15px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
button, input, textarea, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--display); font-weight: 700; letter-spacing: -0.015em; line-height: 1.15; margin: 0; text-wrap: balance; }

/* ---------- top bar ---------- */
.bar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  max-width: 1080px; margin: 0 auto; padding: 18px 20px;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 700; font-size: 19px; letter-spacing: -0.01em; }
.brand-mark { width: 28px; height: 28px; }
.brand-mark circle { fill: var(--vault); }
.brand-mark .ring { fill: none; stroke: var(--vault-ink); stroke-width: 5; }
.brand-mark .notch { fill: var(--brass); }
.session { display: flex; align-items: center; gap: 12px; }
.status { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.status > span:first-of-type { color: var(--ink); font-weight: 600; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); display: inline-block; }

/* ---------- buttons and fields ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 40px; padding: 8px 16px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  font-weight: 600; font-size: 14px; cursor: pointer;
  transition: border-color .15s, background .15s, transform .1s;
}
.btn:hover { border-color: var(--muted); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn.primary { background: var(--vault); border-color: var(--vault); color: var(--vault-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, var(--line)); }
.btn.danger.armed, .btn.danger.solid { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn.wide { width: 100%; }
.btn.busy { cursor: progress; }
.link { background: none; border: 0; padding: 0; color: var(--muted); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; font-size: 13px; }
.link:hover { color: var(--ink); }

.label { display: block; font-size: 12.5px; font-weight: 600; letter-spacing: .02em; color: var(--muted); margin: 0 0 6px; }
.field {
  width: 100%; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
}
.field:focus { outline: none; border-color: var(--vault); box-shadow: 0 0 0 3px color-mix(in srgb, var(--vault) 22%, transparent); }
.field.bad { border-color: var(--danger); }
.area { resize: vertical; line-height: 1.5; min-height: 120px; }
.area.out, .mono { font-family: var(--mono); font-size: 12.5px; }
.area.out { background: var(--sunken); }
.err { min-height: 0; margin: 8px 0 0; font-size: 13px; color: var(--danger); }
.err:empty { margin: 0; }
.hint, .fine, .meta { font-size: 13px; color: var(--muted); }
.meta { font-variant-numeric: tabular-nums; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.row > .field { flex: 1 1 180px; min-width: 0; }
.row .meta { flex: 1; }
.row.end { justify-content: flex-end; }

/* ---------- lock screen ---------- */
.lock { max-width: 460px; margin: 0 auto; padding: 8px 20px 60px; display: grid; justify-items: center; gap: 4px; }
.dial { width: 168px; height: 168px; margin: 8px 0 -18px; position: relative; z-index: 1; }
.dial svg { width: 100%; height: 100%; overflow: visible; }
.dial-face { fill: var(--surface); stroke: var(--line); stroke-width: 2; }
.dial-rotor { transform-origin: 100px 100px; transition: transform .9s cubic-bezier(.3,.7,.2,1); }
.dial-tick { stroke: var(--muted); stroke-width: 1.5; }
.dial-tick.major { stroke: var(--ink); stroke-width: 2.5; }
.dial-hub { fill: var(--vault); }
.dial-grip { fill: var(--vault-ink); }
.dial-index { fill: var(--brass); }
.dial.turning .dial-rotor { animation: turn 1.6s linear infinite; }
.dial.open .dial-rotor { transform: rotate(270deg); }
@keyframes turn { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.lock-card {
  width: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: 20px;
  padding: 40px 26px 26px; box-shadow: 0 1px 0 var(--line), 0 18px 40px -28px rgba(10, 30, 22, .45);
}
.lock-card h1 { font-size: 30px; text-align: center; }
.lock-card .lead { text-align: center; color: var(--muted); margin: 8px 0 20px; }
.lock-card form { display: grid; gap: 4px; }
.lock-card form .label { margin-top: 10px; }
.lock-card .btn.primary { margin-top: 16px; }
.lock-card .fine { text-align: center; margin: 14px 0 0; }
.lock-card .link { display: block; margin: 12px auto 0; }
.notice {
  font-size: 13.5px; padding: 12px 14px; border-radius: 10px; margin: 0 0 8px;
  background: color-mix(in srgb, var(--brass) 14%, var(--surface)); border: 1px solid color-mix(in srgb, var(--brass) 40%, var(--line));
}
.erase { margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--line); font-size: 13.5px; color: var(--muted); }
.erase .btn { margin-top: 10px; }

/* ---------- app shell ---------- */
.app { max-width: 1080px; margin: 0 auto; padding: 0 20px 64px; }
.tabs {
  display: flex; gap: 4px; padding: 4px; margin-bottom: 18px; width: fit-content; max-width: 100%; overflow-x: auto;
  background: var(--sunken); border: 1px solid var(--line); border-radius: 12px;
}
.tab {
  border: 0; background: transparent; padding: 8px 16px; border-radius: 9px; cursor: pointer;
  font-weight: 600; font-size: 14px; color: var(--muted); white-space: nowrap;
}
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.12); }
.count { display: inline-block; min-width: 20px; padding: 0 6px; margin-left: 4px; border-radius: 999px; background: var(--line); color: var(--ink); font-size: 12px; text-align: center; font-variant-numeric: tabular-nums; }

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.bench { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 24px; }
.bench-in, .bench-out { min-width: 0; }
.bench-out { border-left: 1px dashed var(--line); padding-left: 24px; }
.out-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }

/* method picker */
.methods { border: 0; margin: 0 0 14px; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.methods legend { padding: 0; margin-bottom: 6px; }
.method { position: relative; display: block; cursor: pointer; }
.method input { position: absolute; opacity: 0; pointer-events: none; }
.method .card {
  display: block; height: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg);
  transition: border-color .15s, background .15s;
}
.method:hover .card { border-color: var(--muted); }
.method input:checked + .card { border-color: var(--vault); background: color-mix(in srgb, var(--vault) 9%, var(--surface)); box-shadow: inset 0 0 0 1px var(--vault); }
.method input:focus-visible + .card { outline: 2px solid var(--brass); outline-offset: 2px; }
.method .name { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 4px 6px; font-weight: 600; font-size: 14px; }
.method .desc { display: block; margin-top: 3px; font-size: 12.5px; color: var(--muted); line-height: 1.4; }
.badge { font-size: 10.5px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; padding: 2px 6px; border-radius: 6px; white-space: nowrap; }
.badge.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 14%, transparent); }
.badge.warn { color: var(--warn); background: color-mix(in srgb, var(--warn) 14%, transparent); }
.badge.muted { color: var(--muted); background: color-mix(in srgb, var(--muted) 16%, transparent); }
.badge.info { color: var(--info); background: color-mix(in srgb, var(--info) 14%, transparent); }

.keyzone { margin-bottom: 14px; }
.keyzone .note { margin: 0; font-size: 13px; color: var(--muted); padding: 10px 12px; border-radius: 10px; background: var(--bg); border: 1px dashed var(--line); }
.keyzone .note b { color: var(--ink); font-weight: 600; }
.keyzone .fp { font-family: var(--mono); font-size: 11.5px; color: var(--ink); overflow-wrap: anywhere; }

.verdict { margin-top: 10px; padding: 14px 16px; border-radius: 10px; font-weight: 600; }
.verdict.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, var(--surface)); border: 1px solid color-mix(in srgb, var(--ok) 40%, var(--line)); }
.verdict.bad { color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, var(--surface)); border: 1px solid color-mix(in srgb, var(--danger) 40%, var(--line)); }
.verdict small { display: block; font-weight: 400; color: var(--muted); margin-top: 2px; }

/* vault list */
.vault-head h2 { font-size: 22px; }
.vault-head .lead { color: var(--muted); max-width: 70ch; margin: 6px 0 18px; font-size: 14px; }
.items { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.item { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; background: var(--bg); }
.item-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.item-head .meta { flex: 1; }
.item-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.item-actions .btn { min-height: 32px; padding: 4px 10px; font-size: 13px; }
.item-body {
  margin-top: 8px; font-family: var(--mono); font-size: 12px; line-height: 1.6; overflow-wrap: anywhere; white-space: pre-wrap;
  max-height: 4.9em; overflow: hidden; color: var(--ink);
}
.item.expanded .item-body { max-height: none; }
.empty { padding: 26px; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 12px; }
.danger-zone { margin-top: 28px; padding-top: 18px; border-top: 1px dashed var(--line); }
.danger-zone h3 { font-size: 16px; color: var(--danger); }
.danger-zone p { margin: 4px 0 0; color: var(--muted); font-size: 13.5px; }

/* keys */
.keys { display: grid; gap: 22px; }
.keys h2 { font-size: 22px; }
.keys h3 { font-size: 16px; margin-bottom: 6px; }
.keys p { margin: 4px 0 0; color: var(--muted); font-size: 14px; max-width: 70ch; }
.keycard { display: grid; gap: 4px; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); }
.keycard .fp { font-family: var(--mono); font-size: 13px; overflow-wrap: anywhere; color: var(--ink); }
.keycard .spec { font-size: 13px; color: var(--muted); }
.warnbox { padding: 10px 12px; border-radius: 10px; font-size: 13.5px; color: var(--danger); background: color-mix(in srgb, var(--danger) 9%, var(--surface)); border: 1px solid color-mix(in srgb, var(--danger) 35%, var(--line)); margin-top: 10px; }
.cols2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 10px; }
.cols2 > * { min-width: 0; }

/* toast */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 50;
  max-width: calc(100% - 32px); padding: 10px 16px; border-radius: 12px;
  background: var(--ink); color: var(--bg); font-weight: 500; font-size: 14px; box-shadow: 0 10px 30px -10px rgba(0,0,0,.4);
}

@media (max-width: 820px) {
  .bench { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .bench-out { border-left: 0; padding-left: 0; border-top: 1px dashed var(--line); padding-top: 18px; }
  .panel { padding: 16px; }
  .cols2 { grid-template-columns: 1fr; }
  .status-sub { display: none; }
}
@media (max-width: 420px) {
  .tab { padding: 8px 10px; font-size: 13.5px; }
  .tabs { width: 100%; justify-content: space-between; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}