:root {
  color-scheme: dark;
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1c232d;
  --line: #263040;
  --ink: #e6edf3;
  --ink-dim: #93a1b0;
  --ink-faint: #66727f;
  --accent: #4c8fbd;
  --accent-ink: #06121b;
  --accent-soft: rgba(76, 143, 189, 0.22);
  --accent-line: rgba(76, 143, 189, 0.6);
  --ok: #57a773;
  --ok-line: rgba(87, 167, 115, 0.55);
  --warn: #c9a227;
  --warn-line: rgba(201, 162, 39, 0.55);
  --err: #cf6a6a;
  --err-line: rgba(207, 106, 106, 0.55);
  --err-soft: rgba(207, 106, 106, 0.14);
  --radius: 12px;
  --app-h: 100vh;
  --vv-top: 0px;
  --sat: env(safe-area-inset-top, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
  --sal: env(safe-area-inset-left, 0px);
  --sar: env(safe-area-inset-right, 0px);
}
@supports (height: 100dvh) { :root { --app-h: 100dvh; } }

[hidden] { display: none !important; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
html, body { margin: 0; min-height: 100%; }
body {
  background: radial-gradient(1200px 600px at 50% -10%, #131a22 0%, var(--bg) 60%) fixed;
  background-color: var(--bg);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.in-app { overflow: hidden; overscroll-behavior: none; }

.app {
  min-height: var(--app-h);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(16px + var(--sat)) calc(16px + var(--sar)) calc(16px + var(--sab)) calc(16px + var(--sal));
}

.card {
  width: 100%;
  max-width: 560px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
}

button {
  font: inherit;
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
button:disabled { opacity: .6; cursor: default; }
button:focus-visible, select:focus-visible, summary:focus-visible, input[type=range]:focus-visible, input[type=checkbox]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.field input, .field select, .composer textarea {
  width: 100%;
  min-height: 46px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 10px;
  padding: 11px 12px;
  font: inherit;
  font-size: 16px; outline: none;
}
.field input, .composer textarea { -webkit-appearance: none; appearance: none; }
.field input::placeholder, .composer textarea::placeholder { color: var(--ink-faint); }
.field input:focus, .field select:focus, .composer textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.primary { background: var(--accent); color: var(--accent-ink); font-weight: 600; padding: 0 16px; border: none; }
.ghost { background: transparent; color: var(--ink-dim); border-color: var(--line); padding: 0 14px; }
.ghost:hover { color: var(--ink); border-color: var(--accent); }

.login { padding: 28px 24px 24px; gap: 4px; }
.brandmark {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), #2f6a90);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .08);
  margin-bottom: 14px;
}
.title { margin: 0; font-size: 22px; font-weight: 620; letter-spacing: -0.01em; }
.subtitle { margin: 6px 0 18px; color: var(--ink-dim); font-size: 14px; max-width: 46ch; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field .label { font-size: 13px; color: var(--ink-dim); }
.hint { font-size: 12px; color: var(--ink-faint); margin: 0; line-height: 1.45; }
.error { color: var(--err); font-size: 13px; margin: 2px 0 8px; }
#loginBtn { width: 100%; margin-top: 4px; min-height: 48px; }

.channel {
  height: min(760px, calc(var(--app-h) - 32px - var(--sat) - var(--sab)));
  overflow: hidden;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas: "who lock" "status status";
  align-items: center;
  gap: 8px 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  flex: 0 0 auto;
}
.who { grid-area: who; min-width: 0; font-size: 14px; color: var(--ink-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.who strong { color: var(--ink); }
.lock { grid-area: lock; min-height: 40px; }
.status {
  grid-area: status;
  justify-self: start;
  max-width: 100%;
  font-size: 13px;
  color: var(--ink-dim);
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.status.ok { color: var(--ok); border-color: var(--ok-line); }
.status.warn { color: var(--warn); border-color: var(--warn-line); }
.status.err { color: var(--err); border-color: var(--err-line); }

.messages {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.msg { display: flex; }
.msg.me { justify-content: flex-end; }
.msg .bubble {
  max-width: 82%;
  padding: 8px 12px;
  border-radius: 16px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  line-height: 1.4;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.msg.me .bubble { background: var(--accent-soft); border-color: var(--accent-line); }
.msg.sys { justify-content: center; }
.msg.sys .bubble { background: transparent; border: none; color: var(--ink-faint); font-size: 12.5px; text-align: center; max-width: 92%; }
.locked-note { text-align: center; color: var(--ink-faint); font-size: 13px; padding: 10px 16px; margin: 0; flex: 0 0 auto; }

.call-bar {
  flex: 0 0 auto;
  border-top: 1px solid var(--line);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.call-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; }
.call-label { flex: 1 1 100%; color: var(--ink-dim); font-size: 14px; }
.call-label.pulse { color: var(--ok); }
.call-row > button { flex: 1 1 0; min-width: 0; padding: 0 14px; }
.call-start { background: var(--ok); color: #06140b; font-weight: 600; }
.call-end { background: transparent; color: var(--err); border-color: var(--err-line); }
.call-end:hover { background: var(--err-soft); }

.morph { border: 1px solid var(--line); border-radius: 12px; background: var(--panel-2); }
.morph > summary {
  list-style: none;
  cursor: pointer;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  font-size: 14px;
  color: var(--ink-dim);
  -webkit-tap-highlight-color: transparent;
}
.morph > summary::-webkit-details-marker { display: none; }
.morph > summary b { color: var(--ink); font-weight: 600; }
.morph > summary::after { content: "Adjust"; margin-left: auto; color: var(--accent); font-size: 13px; }
.morph[open] > summary::after { content: "Close"; }
.morph-body { padding: 2px 14px 14px; display: flex; flex-direction: column; gap: 12px; }
.presets { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.preset { background: var(--panel); color: var(--ink-dim); border-color: var(--line); padding: 0 6px; font-size: 14px; }
.preset[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent-line); color: var(--ink); }
.slider { display: flex; flex-direction: column; gap: 2px; font-size: 13px; color: var(--ink-dim); }
.slider span { display: flex; justify-content: space-between; }
.slider b { color: var(--ink); font-weight: 600; }
.slider input[type=range] { width: 100%; height: 32px; margin: 0; accent-color: var(--accent); background: transparent; }
.check { display: flex; align-items: center; gap: 10px; min-height: 40px; font-size: 14px; color: var(--ink-dim); }
.check input { width: 22px; height: 22px; margin: 0; accent-color: var(--accent); }
.test-voice { width: 100%; }
.test-voice[aria-pressed="true"] { color: var(--ok); border-color: var(--ok-line); }

.composer {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--line);
}
.composer textarea { flex: 1 1 auto; min-width: 0; resize: none; max-height: 120px; line-height: 1.4; }
.send { flex: 0 0 auto; min-height: 46px; padding: 0 18px; }

@media (max-width: 599px), (max-height: 520px) and (orientation: landscape) {
  .app { padding: 0; align-items: stretch; }
  .card { max-width: none; border-radius: 0; border: 0; }
  .login {
    min-height: var(--app-h);
    justify-content: center;
    padding: calc(24px + var(--sat)) calc(20px + var(--sar)) calc(24px + var(--sab)) calc(20px + var(--sal));
  }
  body.in-app .channel {
    position: fixed;
    left: 0; right: 0;
    top: var(--vv-top);
    height: var(--app-h);
  }
  .topbar { padding: calc(10px + var(--sat)) calc(12px + var(--sar)) 10px calc(12px + var(--sal)); }
  .messages { padding: 12px calc(12px + var(--sar)) 12px calc(12px + var(--sal)); }
  .call-bar { padding: 8px calc(12px + var(--sar)) 8px calc(12px + var(--sal)); }
  .composer { padding: 8px calc(10px + var(--sar)) calc(8px + var(--sab)) calc(10px + var(--sal)); }
  body.kb-open .composer { padding-bottom: 8px; }
  body.kb-open .locked-note { display: none; }
}
@media (max-width: 360px) {
  .presets { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-height: 520px) and (orientation: landscape) {
  .topbar { grid-template-columns: minmax(0, 1fr) auto auto; grid-template-areas: "who status lock"; padding-top: calc(6px + var(--sat)); padding-bottom: 6px; }
  .locked-note { padding: 6px 16px; }
  .morph-body { gap: 8px; }
}

@media (min-width: 600px) {
  .topbar { grid-template-columns: minmax(0, 1fr) auto auto; grid-template-areas: "who status lock"; }
  .call-label { flex: 1 1 auto; }
  .call-row > button { flex: 0 0 auto; padding: 0 20px; }
  #call-idle > button { flex: 0 0 auto; }
}

@media (prefers-reduced-motion: no-preference) {
  .call-label.pulse { animation: breathe 2s ease-in-out infinite; }
}
@keyframes breathe { 0%, 100% { opacity: 1; } 50% { opacity: .55; } }

.contacts { min-height: 0; }
.linkbtn { display: inline-flex; align-items: center; text-decoration: none; min-height: 40px; }
.note { margin: 0; padding: 8px 14px 0; font-size: 13px; color: var(--ink-faint); min-height: 20px; }
.banner { margin: 10px 14px 0; padding: 12px 14px; border: 1px solid var(--accent-line); background: var(--accent-soft); border-radius: 12px; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.banner-actions { display: flex; gap: 10px; }
.banner-actions > button { flex: 1 1 0; padding: 0 14px; }
.contact-list { flex: 1 1 auto; min-height: 0; overflow-y: auto; padding: 10px 14px 14px; display: flex; flex-direction: column; gap: 8px; }
.contact { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel-2); }
.cname { min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 600; }
.cstate { font-size: 12.5px; color: var(--ink-faint); }
.cstate.on { color: var(--ok); } .cstate.busy { color: var(--warn); }
.open:disabled { background: var(--panel); color: var(--ink-faint); border: 1px solid var(--line); opacity: 1; }
.open { background: var(--accent); color: var(--accent-ink); font-weight: 600; padding: 0 16px; min-height: 40px; border: none; }
.hiddenbtn { display: none; }

.safety { flex: 0 0 auto; padding: 8px 14px 0; }
.small { min-height: 36px; font-size: 13px; }
.safety-panel { margin-top: 8px; padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel-2); }
.safety-words { font-size: 17px; font-weight: 600; letter-spacing: 0.02em; word-spacing: 0.35em; line-height: 1.5; margin-bottom: 8px; }

.manage { padding: 0; }
.manage .body { padding: 14px; display: flex; flex-direction: column; gap: 14px; overflow-y: auto; min-height: 0; flex: 1 1 auto; }
.row-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; align-items: end; }
.row-form .field { margin: 0; }
.member { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 12px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel-2); }
.member .meta { font-size: 12.5px; color: var(--ink-faint); }
.member .actions { grid-column: 1 / -1; display: flex; gap: 8px; flex-wrap: wrap; }
.member .actions > button { min-height: 38px; font-size: 13px; padding: 0 12px; }
.member.revoked { opacity: .6; }
.secret { padding: 12px; border: 1px solid var(--warn-line); border-radius: 12px; background: rgba(201,162,39,.12); font-size: 14px; }
.secret b { display: block; margin: 6px 0; font-size: 17px; word-spacing: .3em; }
.log { font-size: 12.5px; color: var(--ink-dim); display: flex; flex-direction: column; gap: 4px; }
@media (max-width: 599px) { .row-form { grid-template-columns: 1fr; } .row-form button { width: 100%; } }