/* ============================================================ tokens ==== */

:root {
  --bg: #0b0f13;
  --surface: #141a21;
  --surface-2: #1b232c;
  --raised: #232d38;
  --line: rgba(255, 255, 255, .08);
  --line-strong: rgba(255, 255, 255, .14);

  --text: #e8eef4;
  --muted: #8595a6;
  --faint: #5d6b7a;

  --mint: #4cc38a;
  --mint-soft: rgba(76, 195, 138, .14);
  --red: #ef6a63;
  --red-soft: rgba(239, 106, 99, .13);

  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-pill: 999px;

  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);

  --ease: cubic-bezier(.22, .8, .3, 1);
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overscroll-behavior: none;
}

body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

/* Nothing in this app should ever be selected by a stray long-press except
   the things people actually need to copy. */
body { -webkit-user-select: none; user-select: none; }
input, .bubble, .selectable { -webkit-user-select: text; user-select: text; }

svg { display: block; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
[hidden] { display: none !important; }

/* =========================================================== buttons ==== */

button {
  font: inherit;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 12px 18px;
  cursor: pointer;
  transition: transform .12s var(--ease), background .16s, border-color .16s, opacity .16s;
}
button:active:not(:disabled) { transform: scale(.96); }
button:disabled { opacity: .4; cursor: not-allowed; }
@media (hover: hover) {
  button:hover:not(:disabled) { background: var(--raised); }
}

.btn-primary {
  background: var(--mint);
  border-color: transparent;
  color: #04140c;
  font-weight: 650;
}
@media (hover: hover) { .btn-primary:hover:not(:disabled) { background: #62d69c; } }

.btn-ghost { background: transparent; }
.btn-danger { background: var(--red-soft); border-color: transparent; color: var(--red); }

.btn-block { width: 100%; justify-content: center; }

.icon-btn {
  width: 42px;
  height: 42px;
  padding: 0;
  display: grid;
  place-items: center;
  border-radius: var(--r-md);
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}
.icon-btn svg { width: 21px; height: 21px; }
@media (hover: hover) { .icon-btn:hover { background: var(--surface-2); color: var(--text); } }

/* Segmented pill picker — replaces <select> everywhere. Far better on touch. */
.segmented {
  display: flex;
  gap: 6px;
  padding: 5px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  overflow-x: auto;
  scrollbar-width: none;
}
.segmented::-webkit-scrollbar { display: none; }
.segmented button {
  flex: 1 0 auto;
  padding: 11px 14px;
  border: none;
  background: transparent;
  border-radius: var(--r-pill);
  color: var(--muted);
  font-size: 15px;
  font-weight: 550;
  white-space: nowrap;
}
.segmented button[aria-pressed="true"] {
  background: var(--mint);
  color: #04140c;
}

/* ========================================================== landing ===== */

.landing {
  min-height: 100%;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 28px;
  padding: calc(var(--safe-t) + 40px) 22px calc(var(--safe-b) + 26px);
  max-width: 480px;
  margin: 0 auto;
}

.hero { display: flex; flex-direction: column; justify-content: center; text-align: center; }

/* No tile, no gradient, no glow — just the mark. The bubble is drawn in the
   text colour so the keyhole is the only saturated thing on the page. */
.hero .mark {
  width: 74px;
  height: 74px;
  margin: 0 auto 24px;
  color: var(--text);
}
.hero .mark svg { width: 100%; height: 100%; }
.hero .mark path,
.hero .mark circle { fill: var(--mint); stroke: none; }
.hero .mark .bubble { fill: none; stroke: var(--text); stroke-width: 1.35; }

.hero h1 {
  margin: 0 0 10px;
  font-size: 31px;
  line-height: 1.15;
  letter-spacing: -.025em;
  font-weight: 680;
}
.hero p { margin: 0 auto; color: var(--muted); max-width: 20em; }

/* No chip chrome: three quiet labels sit better under a monoline mark, and
   they stay on one line down to 320px. */
.badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 26px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}
.badge svg { width: 14px; height: 14px; color: var(--mint); flex: none; }

.setup { display: grid; gap: 14px; }
.setup .label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 13.5px;
  color: var(--muted);
  padding: 0 4px;
}
.setup .btn-primary { padding: 16px; font-size: 17px; }

.disclose {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  margin-top: 2px;
}
.disclose summary {
  list-style: none;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px;
}
.disclose summary::-webkit-details-marker { display: none; }
.disclose summary svg { width: 15px; height: 15px; transition: transform .2s var(--ease); }
.disclose[open] summary svg { transform: rotate(90deg); }
.disclose .body { font-size: 14px; color: var(--muted); padding: 10px 4px 0; display: grid; gap: 10px; }

.err { color: var(--red); font-size: 14px; text-align: center; min-height: 1.2em; }

/* ---- join an existing room ---- */

/* An installed app does not reliably capture room links, so there has to be a
   way in from the landing page itself — but creating a room stays the one
   loud action on the page, and this sits quietly under it. */
.or {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--faint);
  font-size: 12.5px;
}
.or::before,
.or::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* Deliberately the same shell as the picker above it — one surface, one hair
   line, one pill — so the page reads as two ways into a room, not two widgets. */
.joinbox {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 5px 5px 15px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  transition: border-color .16s;
}
.joinbox:focus-within { border-color: var(--line-strong); }

.joinbox > .link {
  width: 17px;
  height: 17px;
  flex: none;
  color: var(--faint);
  transition: color .16s;
}
.joinbox:focus-within > .link { color: var(--mint); }

.joinbox input {
  flex: 1;
  min-width: 0;
  border: 0;
  padding: 0;
  background: none;
  color: var(--text);
  /* 16px keeps iOS from zooming the viewport on focus. */
  font: 16px/1.3 var(--font);
  outline: none;
}
.joinbox input::placeholder { color: var(--faint); }

/* An empty field offers the clipboard; a filled one offers the way in. The
   composer's mic/send button swaps on the same principle. */
.joinbox .go {
  width: 42px;
  height: 42px;
  flex: none;
  padding: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border-color: transparent;
  background: var(--mint-soft);
  color: var(--mint);
}
.joinbox .go svg { width: 19px; height: 19px; }
.joinbox .go[data-mode="go"] { background: var(--mint); color: #04140c; }
@media (hover: hover) {
  .joinbox .go:hover:not(:disabled) { background: var(--mint); color: #04140c; }
}

/* Empty error lines must not leave a hole in the layout. */
.err:empty { display: none; }

/* ============================================================= room ===== */

.app {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  height: 100dvh;
  max-height: 100dvh;
}
/* Grid items default to min-width:auto, so a row whose content refuses to
   shrink (a long recording's waveform) widens the whole column past the
   viewport instead of being clipped. Every row here must yield. */
.app > * { min-width: 0; }

/* ---- header ---- */

.topbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 8px 8px 12px;
  padding-top: calc(var(--safe-t) + 8px);
  background: rgba(11, 15, 19, .82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.topbar .who { margin-right: auto; min-width: 0; overflow: hidden; }
.topbar .who b,
.topbar .who > span {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar .who b { font-size: 15.5px; font-weight: 620; letter-spacing: -.01em; }
.topbar .who > span { font-size: 12.5px; color: var(--faint); }

.shield {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 11px 6px 8px;
  margin-right: 6px;
  border-radius: var(--r-pill);
  background: var(--mint-soft);
  border: none;
  color: var(--mint);
  font-size: 12.5px;
  font-weight: 600;
}
.shield svg { width: 14px; height: 14px; }

.timer { font-variant-numeric: tabular-nums; }
.timer[data-soon="true"] { color: var(--red); }

/* ---- people rail ---- */

.rail {
  display: flex;
  gap: 14px;
  padding: 12px 16px;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.rail::-webkit-scrollbar { display: none; }

.person {
  display: grid;
  justify-items: center;
  gap: 6px;
  flex: none;
  width: 62px;
  background: none;
  border: none;
  padding: 0;
  color: inherit;
}
.person .av {
  position: relative;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 16px;
  font-weight: 640;
  color: #08130d;
  background: hsl(var(--h) 52% 64%);
  transition: box-shadow .18s var(--ease), transform .18s var(--ease);
}
.person.speaking .av {
  box-shadow: 0 0 0 3px var(--surface), 0 0 0 6px var(--mint);
  transform: scale(1.06);
}
.person .name {
  font-size: 11.5px;
  color: var(--muted);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.person.me .name { color: var(--text); }

.person .flag {
  position: absolute;
  right: -3px;
  bottom: -3px;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--surface-2);
  border: 2px solid var(--surface);
  color: var(--muted);
}
.person .flag svg { width: 10px; height: 10px; stroke-width: 2.4; }
.person .flag.on-call { background: var(--mint); color: #04140c; }
.person .flag.muted { background: var(--raised); color: var(--red); }

/* ---- message log ---- */

.log {
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 16px 14px 8px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.msg { max-width: 82%; display: flex; flex-direction: column; }
.msg.grouped { margin-top: 0; }
.msg:not(.grouped) { margin-top: 12px; }

.msg .who {
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 4px 12px;
  font-weight: 550;
}
.msg .bubble {
  padding: 9px 14px;
  border-radius: 18px;
  background: var(--surface-2);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 15.5px;
  line-height: 1.42;
  animation: pop .22s var(--ease);
}
.msg.them .bubble { border-bottom-left-radius: 6px; }
.msg.them.grouped .bubble { border-top-left-radius: 6px; }

.msg.me { align-self: flex-end; }
.msg.me .who { text-align: right; margin: 0 12px 4px 0; }
.msg.me .bubble { background: linear-gradient(160deg, #2f7d5b, #276b4e); border-bottom-right-radius: 6px; }
.msg.me.grouped .bubble { border-top-right-radius: 6px; }

@keyframes pop {
  from { opacity: 0; transform: translateY(6px) scale(.98); }
  to { opacity: 1; transform: none; }
}

.note {
  align-self: center;
  max-width: 90%;
  text-align: center;
  font-size: 12.5px;
  color: var(--faint);
  padding: 5px 12px;
  margin-top: 10px;
}

/* ---- dock: call strip + composer ---- */

.dock {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding-bottom: var(--safe-b);
}

.callstrip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  animation: slideUp .26s var(--ease);
}
.callstrip[data-state="idle"] { display: none; }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.callstrip .pulse {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--mint);
  flex: none;
  animation: breathe 2.4s ease-in-out infinite;
}
.callstrip[data-state="connecting"] .pulse { background: #d8a13c; }
@keyframes breathe { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.callstrip .label { margin-right: auto; font-size: 14px; }
.callstrip .label b { font-weight: 600; }
.callstrip .elapsed { font-family: var(--mono); font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }

.callstrip button { padding: 10px 15px; font-size: 14px; border-radius: var(--r-pill); }

.composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 12px;
}
.composer textarea {
  flex: 1;
  resize: none;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text);
  border-radius: 22px;
  padding: 11px 16px;
  max-height: 120px;
  /* 16px keeps iOS from zooming the viewport on focus. */
  font: 16px/1.4 var(--font);
  outline: none;
}
.composer textarea::placeholder { color: var(--faint); }
.composer textarea:focus { border-color: var(--line-strong); }

.round {
  width: 44px;
  height: 44px;
  flex: none;
  padding: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border-color: transparent;
}
.round svg { width: 20px; height: 20px; }
.round.call { background: var(--mint-soft); color: var(--mint); }
.round.call svg { transition: transform .28s var(--ease); }
/* A rotated handset is the universal hang-up affordance — no second icon. */
.round.call[data-active="true"] { background: var(--red); color: #fff; }
.round.call[data-active="true"] svg { transform: rotate(135deg); }
.round.send { background: var(--mint); color: #04140c; }
.round.send:disabled { background: var(--surface-2); color: var(--faint); opacity: 1; }
.round.mic { background: var(--surface-2); color: var(--muted); }
.round.mic:active { background: var(--raised); color: var(--text); }
.round.discard { background: var(--red-soft); color: var(--red); }

/* ---- recording ---- */

.recorder {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  animation: slideUp .2s var(--ease);
}

.recorder .rec-dot {
  width: 9px;
  height: 9px;
  flex: none;
  border-radius: 50%;
  background: var(--red);
  animation: breathe 1.4s ease-in-out infinite;
}
.recorder .rec-time {
  font-size: 14px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  flex: none;
  min-width: 38px;
}

/* Live level meter: newest sample enters at the right and scrolls off left.
   min-width:0 is load-bearing — without it the bars set a min-content width
   the strip cannot shrink below, and a few seconds of recording pushes the
   send button off the side of the screen. */
.rec-wave {
  flex: 1;
  min-width: 0;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
  overflow: hidden;
}
.rec-wave i {
  width: 3px;
  flex: none;
  border-radius: 2px;
  background: var(--mint);
  opacity: .85;
  min-height: 3px;
}

/* ---- voice notes in the log ---- */

.msg .bubble.voice {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px 8px 8px;
  /* Wide enough for a readable waveform, never wider than the room for it. */
  min-width: min(200px, 100%);
}

.voice .play {
  width: 38px;
  height: 38px;
  flex: none;
  padding: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border-color: transparent;
  background: rgba(255, 255, 255, .09);
  color: var(--text);
}
.voice .play svg { width: 17px; height: 17px; }
.msg.me .voice .play { background: rgba(0, 0, 0, .22); color: #eafff4; }
.voice .play:disabled { opacity: .5; }

.voice .wave {
  flex: 1;
  min-width: 0; /* same trap as .rec-wave: let the bars be squeezed, not the bubble */
  height: 30px;
  display: flex;
  align-items: center;
  gap: 2px;
  cursor: pointer;
  touch-action: none;
}
.voice .wave i {
  flex: 1 1 0;
  min-width: 1px;
  border-radius: 2px;
  background: currentColor;
  opacity: .28;
  transition: opacity .12s linear;
}
/* Bars light up as playback passes them. */
.voice .wave i.on { opacity: .95; }

.voice .dur {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  flex: none;
}
.msg.me .voice .dur { color: rgba(255, 255, 255, .72); }

/* Still arriving, or never will: the bubble stays but says so. */
.voice[data-state="loading"] .wave i { opacity: .16; }
.voice[data-state="loading"] .play { opacity: .5; }
.voice[data-state="sending"] .dur::after { content: " ·"; animation: breathe 1.2s ease-in-out infinite; }
.voice .fail {
  font-size: 12.5px;
  color: var(--muted);
  flex: 1;
}

/* ========================================================== sheets ====== */

.scrim {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(4, 7, 10, .6);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  display: flex;
  align-items: flex-end;
  animation: fade .2s var(--ease);
}
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.sheet {
  width: 100%;
  background: var(--surface);
  border-top: 1px solid var(--line-strong);
  border-radius: 26px 26px 0 0;
  padding: 10px 20px calc(var(--safe-b) + 20px);
  max-height: 90dvh;
  overflow-y: auto;
  animation: rise .3s var(--ease);
}
@keyframes rise { from { transform: translateY(100%); } to { transform: none; } }

.sheet .grip {
  width: 38px;
  height: 4px;
  border-radius: 99px;
  background: var(--line-strong);
  margin: 0 auto 16px;
}
.sheet h2 { margin: 0 0 6px; font-size: 20px; font-weight: 650; letter-spacing: -.015em; }
.sheet p { margin: 0 0 18px; color: var(--muted); font-size: 14.5px; }
.sheet .actions { display: flex; gap: 10px; margin-top: 18px; }
.sheet .actions button { flex: 1; padding: 14px; }

.sheet input[type="text"] {
  width: 100%;
  font: 16px/1.4 var(--font);
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 16px;
  outline: none;
}
.sheet input[type="text"]:focus { border-color: var(--mint); }

.rows { display: grid; gap: 2px; margin: 4px 0 6px; }
.row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  background: var(--surface-2);
  border-radius: var(--r-md);
  font-size: 14.5px;
  text-align: left;
  width: 100%;
  border: 1px solid transparent;
}
.row svg { width: 19px; height: 19px; color: var(--muted); flex: none; }
.row .grow { flex: 1; min-width: 0; }
.row .grow small { display: block; color: var(--faint); font-size: 12.5px; }
.row .val { color: var(--muted); font-family: var(--mono); font-size: 13px; }
.row.danger { color: var(--red); }
.row.danger svg { color: var(--red); }

.codebox {
  text-align: center;
  padding: 20px;
  background: var(--surface-2);
  border-radius: var(--r-lg);
  margin-bottom: 6px;
}
.codebox .code {
  font-family: var(--mono);
  font-size: 25px;
  letter-spacing: .06em;
  font-weight: 600;
  color: var(--mint);
}
.codebox small { display: block; color: var(--faint); font-size: 12.5px; margin-top: 8px; }

.people-check { display: grid; gap: 8px; margin-top: 14px; }
.people-check .line { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.people-check .line .val { margin-left: auto; }

/* ================================================= desktop refinement === */

@media (max-width: 360px) {
  .landing { padding-left: 16px; padding-right: 16px; }
}

@media (min-width: 860px) {
  .app { grid-template-columns: 264px 1fr; grid-template-rows: auto 1fr auto; }
  .topbar { grid-column: 1 / -1; }

  .rail {
    grid-row: 2 / 4;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
    overflow-x: hidden;
    border-right: 1px solid var(--line);
    border-bottom: none;
    padding: 12px;
  }
  .person {
    flex-direction: row;
    width: 100%;
    grid-auto-flow: column;
    justify-items: start;
    align-items: center;
    gap: 11px;
    padding: 7px 8px;
    border-radius: var(--r-md);
    display: flex;
  }
  @media (hover: hover) { .person:hover { background: var(--surface-2); } }
  .person .av { width: 36px; height: 36px; font-size: 14px; }
  .person.speaking .av { box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--mint); }
  .person .name { font-size: 14px; }

  .log { padding: 20px 26px 10px; }
  .msg { max-width: 620px; }
  .dock { border-left: 1px solid var(--line); }
  .composer { padding: 12px 20px; }

  .scrim { align-items: center; justify-content: center; padding: 24px; }
  .sheet {
    max-width: 440px;
    border-radius: var(--r-lg);
    border: 1px solid var(--line-strong);
    padding: 24px;
    animation: rise-center .24s var(--ease);
  }
  .sheet .grip { display: none; }
  @keyframes rise-center {
    from { opacity: 0; transform: translateY(12px) scale(.98); }
    to { opacity: 1; transform: none; }
  }

  .landing { max-width: 460px; padding-top: 8vh; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}