/* ============================================================
   Kin — on-device face guard
   Design language: calm, trustworthy, near-black; one warm
   family accent; an alarm state that is impossible to ignore.
   Type roles: eyebrow / display+title / lede+sub / body.
   ============================================================ */

:root{
  --bg:#0b0f14;
  --bg-2:#0e141b;
  --surface:#131b24;
  --surface-2:#18222d;
  --line:#22303d;
  --line-soft:#1a2530;

  --ink:#eef4f9;
  --ink-mid:#9db0c0;
  --ink-dim:#6b7d8c;

  --safe:#34d9a3;      /* recognised / all-clear */
  --safe-glow:rgba(52,217,163,.28);
  --warn:#f5b23d;      /* an unknown face is building */
  --alarm:#ff3b3b;     /* intruder */
  --alarm-deep:#7f0f14;
  --brand:#7cc0ff;     /* primary actions */
  --brand-ink:#06121f;

  --r-lg:22px;
  --r-md:16px;
  --r-sm:11px;
  --shadow:0 18px 50px -20px rgba(0,0,0,.75);
  --safe-top:env(safe-area-inset-top,0px);
  --safe-bot:env(safe-area-inset-bottom,0px);
  font-synthesis:none;
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
/* The `hidden` attribute must always win over component display rules
   (.boot/.alarm/.sheet/.pinpad set display:flex, which would otherwise
   override [hidden] and leave overlays stuck on screen). */
[hidden]{display:none!important}
html,body{height:100%}
body{
  margin:0;
  background:radial-gradient(120% 80% at 50% -10%, #101a24 0%, var(--bg) 55%) fixed;
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  overscroll-behavior:none;
  -webkit-user-select:none;
  user-select:none;
}

/* ---- Type roles ---- */
.eyebrow{
  margin:0 0 10px;
  font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--brand);
}
.display{
  margin:0 0 16px;
  font-size:clamp(30px,8.2vw,40px);line-height:1.06;letter-spacing:-.02em;font-weight:800;
}
.title{margin:0 0 10px;font-size:clamp(23px,6.4vw,30px);line-height:1.1;letter-spacing:-.01em;font-weight:750}
.lede{margin:0 0 26px;font-size:16.5px;line-height:1.5;color:var(--ink-mid);max-width:30ch}
.sub{margin:0 0 22px;font-size:15px;line-height:1.5;color:var(--ink-mid);max-width:34ch}
.hint{margin:10px 0 0;font-size:13px;color:var(--ink-dim);text-align:center}

/* ---- Layout ---- */
.screen{position:fixed;inset:0;display:none;animation:fade .4s ease both}
.screen[data-active]{display:block}
.wrap{
  max-width:520px;margin:0 auto;min-height:100%;
  padding:calc(30px + var(--safe-top)) 24px calc(28px + var(--safe-bot));
  display:flex;flex-direction:column;
}
.wrap-center{justify-content:center;text-align:left}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---- Marks ---- */
.brand-mark,.boot-mark{
  width:60px;height:60px;border-radius:17px;margin-bottom:22px;
  background:
    radial-gradient(120% 120% at 30% 20%, #1e2c3a, #0e161f);
  border:1px solid var(--line);
  position:relative;box-shadow:inset 0 1px 0 rgba(255,255,255,.05), var(--shadow);
}
.brand-mark::after,.boot-mark::after{
  content:"";position:absolute;inset:0;border-radius:inherit;
  background:
    radial-gradient(circle at 50% 42%, var(--safe) 0 5px, transparent 6px),
    radial-gradient(circle at 38% 40%, var(--ink) 0 2.4px, transparent 3px),
    radial-gradient(circle at 62% 40%, var(--ink) 0 2.4px, transparent 3px);
  opacity:.9;
  -webkit-mask:radial-gradient(70% 70% at 50% 45%, #000 60%, transparent 72%);
          mask:radial-gradient(70% 70% at 50% 45%, #000 60%, transparent 72%);
}
.brand-mark::before{
  content:"";position:absolute;inset:0;border-radius:inherit;
  box-shadow:0 0 26px -4px var(--safe-glow);
}

/* ---- Assurances ---- */
.assurances{list-style:none;margin:0 0 30px;padding:0;display:grid;gap:12px}
.assurances li{display:flex;align-items:center;gap:12px;font-size:14.5px;color:var(--ink-mid)}
.assurances .dot{width:7px;height:7px;border-radius:50%;background:var(--safe);box-shadow:0 0 12px var(--safe-glow);flex:0 0 auto}

/* ---- Buttons ---- */
.btn{
  appearance:none;border:0;cursor:pointer;font:inherit;font-weight:650;
  border-radius:var(--r-md);padding:15px 20px;font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  transition:transform .12s ease, background .2s ease, opacity .2s ease;
  color:var(--ink);
}
.btn:active{transform:scale(.975)}
.btn:disabled{opacity:.4;cursor:default}
.btn-lg{padding:17px 22px;font-size:17px}
.btn-block{width:100%}
.btn-primary{background:linear-gradient(180deg,#8ecaff,#6bb2f7);color:var(--brand-ink);box-shadow:0 12px 30px -12px rgba(124,192,255,.6)}
.btn-outline{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink-mid)}
.btn-ghost.danger{color:#ff8080}
.plus{font-size:20px;line-height:1;margin-top:-2px}

/* ---- Roster ---- */
.roster{display:grid;gap:10px;margin:6px 0 16px}
.person{
  display:flex;align-items:center;gap:14px;padding:12px 14px;
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--r-md);
  animation:fade .35s ease both;
}
.person .avatar{
  width:48px;height:48px;border-radius:13px;object-fit:cover;flex:0 0 auto;
  background:var(--surface-2);border:1px solid var(--line);
}
.person .who{flex:1;min-width:0}
.person .who b{display:block;font-size:16px;font-weight:650}
.person .who span{font-size:13px;color:var(--ink-dim)}
.person .remove{background:none;border:0;color:var(--ink-dim);font-size:22px;padding:4px 8px;cursor:pointer}
.roster-footer{margin-top:auto;padding-top:18px}

/* ---- Camera screens ---- */
.screen-camera{background:#05080b}
.cam-stage{position:absolute;inset:0;overflow:hidden;background:#05080b}
.cam-stage video{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transform:scaleX(-1); /* mirror front camera for a natural selfie feel */
}
.cam-stage.no-mirror video{transform:none} /* room-facing back camera is not flipped */
.overlay-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none} /* mirror handled in JS so labels stay readable */
.cam-veil{position:absolute;inset:0;background:
  radial-gradient(120% 90% at 50% 30%, transparent 40%, rgba(3,6,9,.72) 100%)}

/* capture reticle */
.reticle{position:absolute;left:50%;top:38%;transform:translate(-50%,-50%);width:min(72vw,300px);aspect-ratio:1}
.reticle-ring{width:100%;height:100%;transform:rotate(-90deg)}
.ring-track{fill:none;stroke:rgba(255,255,255,.14);stroke-width:4}
.ring-progress{fill:none;stroke:var(--safe);stroke-width:5;stroke-linecap:round;
  stroke-dasharray:578;stroke-dashoffset:578;filter:drop-shadow(0 0 8px var(--safe-glow));
  transition:stroke-dashoffset .3s ease}

.cam-panel{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 24px calc(26px + var(--safe-bot));
  background:linear-gradient(180deg,transparent,rgba(5,8,11,.9)28%);
}
.cam-panel .title{font-size:22px}
.samples{display:flex;gap:8px;margin:4px 0 20px}
.samples .pip{width:100%;height:5px;border-radius:3px;background:rgba(255,255,255,.14)}
.samples .pip.on{background:var(--safe);box-shadow:0 0 10px var(--safe-glow)}
.cam-actions{display:flex;gap:12px}
.cam-actions .btn{flex:1}

/* name step */
.face-chip{width:96px;height:96px;border-radius:24px;margin-bottom:22px;background-size:cover;background-position:center;border:1px solid var(--line);box-shadow:var(--shadow)}
.field{
  width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px;font:inherit;font-size:18px;color:var(--ink);margin-bottom:16px;
}
.field:focus{outline:none;border-color:var(--brand)}
.role-row{display:flex;gap:10px;margin-bottom:26px}
.chip{
  flex:1;padding:12px;border-radius:var(--r-sm);background:var(--surface);
  border:1px solid var(--line);color:var(--ink-mid);font:inherit;font-size:14px;cursor:pointer;
}
.chip[data-on]{border-color:var(--brand);color:var(--ink);background:var(--surface-2)}

/* ---- Watch ---- */
.watch-top{
  position:absolute;top:calc(16px + var(--safe-top));left:16px;right:16px;
  display:flex;align-items:center;justify-content:space-between;z-index:3;
}
.status-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:9px 15px 9px 12px;border-radius:999px;
  background:rgba(10,16,22,.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);font-size:14px;font-weight:600;
  transition:border-color .3s, background .3s;
}
.status-led{width:9px;height:9px;border-radius:50%;background:var(--safe);box-shadow:0 0 12px var(--safe-glow);transition:background .3s, box-shadow .3s}
.status-pill[data-state="idle"] .status-led{background:var(--ink-dim);box-shadow:none}
.status-pill[data-state="known"]{border-color:rgba(52,217,163,.5)}
.status-pill[data-state="known"] .status-led{background:var(--safe)}
.status-pill[data-state="unknown"]{border-color:rgba(245,178,61,.6)}
.status-pill[data-state="unknown"] .status-led{background:var(--warn);box-shadow:0 0 12px rgba(245,178,61,.5);animation:blink .6s steps(2) infinite}
@keyframes blink{50%{opacity:.25}}

.icon-btn{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:rgba(10,16,22,.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--line);
  color:var(--ink-mid);cursor:pointer;
}
.icon-btn:active{transform:scale(.94)}
.watch-top-actions{display:flex;gap:10px}
.scanline{
  position:absolute;left:0;right:0;height:2px;top:0;z-index:2;
  background:linear-gradient(90deg,transparent,var(--safe),transparent);
  opacity:.5;animation:scan 3.2s linear infinite;
}
@keyframes scan{0%{top:8%}100%{top:88%}}

.watch-bottom{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  padding:20px 20px calc(22px + var(--safe-bot));
  display:flex;flex-direction:column;gap:14px;align-items:center;
  background:linear-gradient(180deg,transparent,rgba(5,8,11,.82));
}
.threat-meter{width:100%;max-width:320px;height:6px;border-radius:4px;background:rgba(255,255,255,.12);overflow:hidden}
.threat-fill{height:100%;width:0;background:linear-gradient(90deg,var(--warn),var(--alarm));transition:width .2s linear}
.btn-disarm{background:rgba(10,16,22,.7);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--line);color:var(--ink-mid);padding:12px 26px;border-radius:999px;font-size:15px}
.watch-actions{display:flex;gap:8px;width:100%;max-width:440px}
.wbtn{flex:1;background:rgba(10,16,22,.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--line);color:var(--ink);padding:12px 8px;border-radius:14px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:transform .1s,border-color .2s,background .2s}
.wbtn:active{transform:scale(.96)}
.wbtn[data-on]{border-color:var(--warn);color:var(--warn);background:rgba(245,178,61,.1)}
.wbtn-disarm{color:var(--ink-mid);flex:0 0 auto;padding:12px 18px}

/* Review card — the calm first stage before any siren */
.peek{position:absolute;left:12px;right:12px;top:calc(64px + var(--safe-top));z-index:6;
  display:flex;gap:12px;padding:12px;border-radius:18px;
  background:rgba(18,26,35,.92);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid rgba(245,178,61,.5);box-shadow:var(--shadow);animation:peekin .3s cubic-bezier(.2,.9,.25,1) both}
@keyframes peekin{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
.peek-shot{width:66px;height:66px;border-radius:13px;object-fit:cover;flex:0 0 auto;background:var(--surface-2);border:1px solid var(--line);transform:scaleX(-1)}
.peek-body{flex:1;min-width:0}
.peek-title{margin:0 0 3px;font-size:15px;font-weight:700}
.peek-sub{margin:0 0 10px;font-size:13px;color:var(--warn)}
.peek-sub b{font-variant-numeric:tabular-nums}
.peek-actions{display:flex;flex-wrap:wrap;gap:6px}
.peek-btn{border:1px solid var(--line);background:var(--surface-2);color:var(--ink);border-radius:9px;padding:8px 10px;font:inherit;font-size:12.5px;font-weight:600;cursor:pointer}
.peek-btn:active{transform:scale(.95)}
.peek-know{border-color:rgba(52,217,163,.5);color:var(--safe)}
.peek-alarm{border-color:rgba(255,59,59,.55);color:#ff6b6b}

/* Speak sheet */
.speak-hint{margin:0 0 16px;font-size:13.5px;color:var(--ink-dim)}
.speak-quick{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.quick-phrase{text-align:left;background:var(--surface);border:1px solid var(--line);color:var(--ink);border-radius:12px;padding:12px;font:inherit;font-size:13.5px;cursor:pointer;line-height:1.3}
.quick-phrase:active{transform:scale(.97);background:var(--surface-2)}
.speak-talking .speak-quick{opacity:.5}

/* Voice notes */
.btn-record{width:100%;justify-content:center;gap:12px;background:var(--surface);border:1px solid var(--line);color:var(--ink);padding:16px;margin-bottom:14px}
.btn-record[data-rec]{border-color:var(--alarm);color:#ff8a8a}
.rec-dot{width:12px;height:12px;border-radius:50%;background:var(--ink-dim)}
.btn-record[data-rec] .rec-dot{background:var(--alarm);animation:recpulse 1s ease-in-out infinite}
@keyframes recpulse{50%{opacity:.3;transform:scale(1.25)}}
.note-live{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px;font-size:15px;line-height:1.45;min-height:64px;margin-bottom:12px;color:var(--ink)}
.note-actions{display:grid;grid-template-columns:1fr 2fr;gap:8px;margin-bottom:16px}
.notes-list{display:grid;gap:8px;margin:6px 0 14px;max-height:38vh;overflow-y:auto}
.note-item{background:var(--surface);border:1px solid var(--line-soft);border-radius:12px;padding:12px}
.note-item .note-time{font-size:11.5px;color:var(--ink-dim);margin-bottom:4px}
.note-item .note-text{font-size:14px;line-height:1.4}
.note-item .note-key{margin-top:6px;font-size:13px;color:var(--safe);line-height:1.4}
.note-item .note-row{display:flex;gap:8px;margin-top:8px}
.note-item .note-row button{flex:1;font-size:12.5px;padding:8px;border-radius:9px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);cursor:pointer}

/* ---- Alarm ---- */
.alarm{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(120% 120% at 50% 30%, var(--alarm-deep), #1c0405 70%, #000);
  animation:alarmflash 1s steps(1) infinite}
@keyframes alarmflash{50%{background:radial-gradient(120% 120% at 50% 30%, #b3161c, #2b0608 70%, #000)}}
.alarm-pulse{position:absolute;inset:0;border:0 solid var(--alarm);animation:pulsering 1.1s ease-out infinite}
@keyframes pulsering{0%{box-shadow:inset 0 0 0 0 rgba(255,59,59,.0)}30%{box-shadow:inset 0 0 90px 6px rgba(255,59,59,.55)}100%{box-shadow:inset 0 0 0 0 rgba(255,59,59,0)}}
.alarm-inner{position:relative;text-align:center;padding:26px;max-width:460px;width:100%}
.alarm-eyebrow{margin:0 0 8px;font-size:12px;font-weight:800;letter-spacing:.22em;text-transform:uppercase;color:#ffd0d0}
.alarm-title{margin:0 0 22px;font-size:clamp(26px,7vw,34px);font-weight:850;letter-spacing:-.01em;color:#fff;text-shadow:0 2px 20px rgba(0,0,0,.5)}
.alarm-shot{width:150px;height:150px;margin:0 auto 18px;border-radius:22px;overflow:hidden;border:2px solid rgba(255,255,255,.5);box-shadow:0 0 40px rgba(255,59,59,.5)}
.alarm-shot img{width:100%;height:100%;object-fit:cover;display:block}
.alarm-sub{margin:0 0 26px;font-size:15px;color:#ffe0e0;line-height:1.5}
.btn-000{width:100%;flex-direction:column;gap:2px;background:#fff;color:#b30000;padding:18px;border-radius:18px;text-decoration:none;
  box-shadow:0 14px 40px -10px rgba(0,0,0,.6);animation:btnpush 1.1s ease-in-out infinite}
@keyframes btnpush{50%{transform:scale(1.035)}}
.btn-000-big{font-size:21px;font-weight:850;letter-spacing:.01em}
.btn-000-small{font-size:12.5px;font-weight:600;opacity:.7}
.btn-hold{position:relative;width:100%;margin-top:14px;background:rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.35);color:#fff;overflow:hidden}
.hold-fill{position:absolute;left:0;top:0;bottom:0;width:0;background:rgba(255,255,255,.22)}
.hold-label{position:relative;z-index:1;font-size:15px}

/* ---- Settings sheet ---- */
.sheet{position:fixed;inset:0;z-index:40;display:flex;align-items:flex-end;justify-content:center;
  background:rgba(0,0,0,.55);animation:fade .25s ease both}
.sheet-card{width:100%;max-width:520px;background:var(--bg-2);border:1px solid var(--line);
  border-radius:26px 26px 0 0;padding:12px 22px calc(22px + var(--safe-bot));box-shadow:0 -20px 60px -20px #000;
  animation:sheetup .32s cubic-bezier(.2,.9,.25,1) both}
@keyframes sheetup{from{transform:translateY(30px)}to{transform:none}}
.sheet-handle{width:40px;height:4px;border-radius:3px;background:var(--line);margin:6px auto 16px}
.sheet-title{margin:0 0 18px;font-size:20px;font-weight:750}
.set-row{display:flex;flex-direction:column;gap:10px;padding:14px 0;border-top:1px solid var(--line-soft)}
.set-row-inline{flex-direction:row;align-items:center;justify-content:space-between}
.set-label{font-size:15px;font-weight:600}
.set-label em{display:block;font-style:normal;font-size:12.5px;color:var(--ink-dim);font-weight:400;margin-top:3px}
input[type=range]{width:100%;accent-color:var(--brand)}
input[type=checkbox]{width:22px;height:22px;accent-color:var(--safe)}
.set-actions{display:grid;gap:8px;margin:18px 0}
.set-section{margin:24px 0 4px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand)}
.set-note{margin:0 0 4px;font-size:12.5px;color:var(--ink-dim);line-height:1.45}
.contacts{display:grid;gap:8px;margin:10px 0}
.contact{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--surface);border:1px solid var(--line-soft);border-radius:12px}
.contact b{font-size:14px;font-weight:650}
.contact .num{flex:1;font-size:12.5px;color:var(--ink-dim)}
.contact .remove{background:none;border:0;color:var(--ink-dim);font-size:20px;cursor:pointer;padding:2px 6px}
.contacts-empty{font-size:12.5px;color:var(--ink-dim);padding:2px}
.contact-add{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:10px 0}
.contact-add .field{margin:0;padding:12px;font-size:14px}
.contact-add #contact-add-btn{grid-column:1 / -1}
.btn-alert-now{margin-top:12px;background:rgba(0,0,0,.28);border:1px solid rgba(255,255,255,.4);color:#fff;font-size:15px}

/* ---- PIN pad ---- */
.pinpad{position:fixed;inset:0;z-index:55;display:flex;align-items:center;justify-content:center;
  background:rgba(4,7,10,.9);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);animation:fade .2s ease both}
.pinpad-card{width:100%;max-width:320px;padding:28px 24px;text-align:center}
.pinpad-title{margin:0 0 22px;font-size:18px;font-weight:650;color:var(--ink)}
.pin-dots{display:flex;gap:16px;justify-content:center;margin-bottom:28px}
.pin-dots span{width:14px;height:14px;border-radius:50%;border:2px solid var(--ink-dim);transition:background .15s,border-color .15s}
.pin-dots span.on{background:var(--brand);border-color:var(--brand)}
.pin-dots.shake{animation:shake .4s}
@keyframes shake{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-9px)}40%,80%{transform:translateX(9px)}}
.pin-keys{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:14px}
.pin-key{height:64px;border-radius:16px;border:1px solid var(--line);background:var(--surface);color:var(--ink);
  font-size:24px;font-weight:600;cursor:pointer;transition:transform .1s,background .2s}
.pin-key:active{transform:scale(.94);background:var(--surface-2)}
.pin-key-blank{background:transparent;border:0;pointer-events:none}

/* ---- Boot ---- */
.boot{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;background:var(--bg);z-index:100}
.boot-mark{animation:breathe 2.4s ease-in-out infinite}
@keyframes breathe{50%{transform:scale(1.06)}}
.boot-text{color:var(--ink-dim);font-size:14px;letter-spacing:.02em}

/* ---- Toast ---- */
.toast{position:fixed;left:50%;bottom:calc(26px + var(--safe-bot));transform:translateX(-50%);
  background:var(--surface-2);border:1px solid var(--line);color:var(--ink);
  padding:12px 18px;border-radius:12px;font-size:14px;z-index:60;box-shadow:var(--shadow);
  animation:fade .25s ease both;max-width:88vw;text-align:center}

@media (min-height:760px){.reticle{top:40%}}

/* ---- Error banner (visible diagnostics on real devices) ---- */
.errbar{
  position:fixed;left:0;right:0;top:0;z-index:200;
  padding:calc(10px + var(--safe-top)) 16px 10px;
  background:#3a0d10;color:#ffd9d9;border-bottom:1px solid #7f1d1d;
  font-size:13.5px;line-height:1.4;text-align:center;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}