/*
 * Discreet, high-contrast, one-hand UI. Dark only (used with the screen dimmed,
 * often at night). Large touch targets; the PTT button is reachable with a
 * thumb. No external fonts.
 */

:root {
  --bg: #0b0d10;
  --panel: #151a20;
  --panel-2: #1c232b;
  --line: #2a333d;
  --text: #e7edf3;
  --muted: #8b98a5;
  --accent: #3d7dff;
  --tx: #e0483d; /* transmitting */
  --ok: #35c07a;
  --warn: #e0a63d;
  --bad: #e0483d;
  --radius: 14px;
  --tap: 48px;
}

* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

#app {
  max-width: 520px;
  margin: 0 auto;
  padding: max(16px, env(safe-area-inset-top)) 16px
    calc(16px + env(safe-area-inset-bottom));
}

h1 {
  font-size: 1.25rem;
  margin: 8px 0 4px;
}
.sub {
  color: var(--muted);
  margin: 0 0 20px;
}
.muted {
  color: var(--muted);
}

/* ---- join form ------------------------------------------------------------ */

#join-form {
  display: grid;
  gap: 14px;
}
label {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
}
input,
select {
  width: 100%;
  min-height: var(--tap);
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  font-size: 1rem;
}
input:focus,
select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
button {
  min-height: var(--tap);
  padding: 12px 16px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
button:disabled {
  opacity: 0.6;
}
button.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  font-weight: 500;
}
button.danger {
  background: var(--panel-2);
  border: 1px solid var(--bad);
  color: #ffb9b3;
}
#join-error {
  color: var(--bad);
  min-height: 1.2em;
  margin: 0;
  font-size: 0.9rem;
}

/* ---- collapsibles ------------------------------------------------------- */

.collapsible {
  margin-top: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 4px 12px;
}
.collapsible > summary {
  cursor: pointer;
  padding: 10px 0;
  color: var(--muted);
  font-size: 0.9rem;
}
.hint {
  color: var(--muted);
  font-size: 0.85rem;
}
ol.hint {
  padding-left: 20px;
}

/* ---- onboarding checklist (join screen) ------------------------------ */

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.checklist li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.4;
}
.checklist li strong {
  color: var(--text);
}
.step-icon {
  flex: none;
  font-size: 1.15rem;
  line-height: 1.3;
}

/* ---- call view ------------------------------------------------------- */

.bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
}
#status {
  font-size: 0.85rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--line);
}
#status[data-state="online"] {
  color: var(--ok);
  border-color: color-mix(in srgb, var(--ok) 40%, var(--line));
}
#status[data-state="connecting"],
#status[data-state="reconnecting"] {
  color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 40%, var(--line));
}
#status[data-state="offline"] {
  color: var(--bad);
  border-color: color-mix(in srgb, var(--bad) 40%, var(--line));
}
#rtt {
  font-size: 0.8rem;
  margin-left: auto;
}
.bar #leave {
  min-height: 36px;
  padding: 6px 12px;
}

/* ---- banner: "o que se passa" + "o que fazer agora" ------------------ */

.banner {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 4px 0 12px;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
}
.banner-icon {
  flex: none;
  font-size: 1.5rem;
  line-height: 1.2;
}
.banner-text {
  display: grid;
  gap: 2px;
  min-width: 0;
}
.banner-text strong {
  font-size: 1rem;
}
.banner-text span {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.4;
}
.banner[data-tone="info"] {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  background: color-mix(in srgb, var(--accent) 10%, var(--panel));
}
.banner[data-tone="ok"] {
  border-color: color-mix(in srgb, var(--ok) 40%, var(--line));
  background: color-mix(in srgb, var(--ok) 8%, var(--panel));
}
.banner[data-tone="live"] {
  border-color: var(--ok);
  background: color-mix(in srgb, var(--ok) 16%, var(--panel));
}
.banner[data-tone="live"] .banner-text strong {
  color: var(--ok);
}
.banner[data-tone="warn"] {
  border-color: var(--warn);
  background: color-mix(in srgb, var(--warn) 12%, var(--panel));
}
.banner[data-tone="bad"] {
  border-color: var(--bad);
  background: color-mix(in srgb, var(--bad) 12%, var(--panel));
}

.self {
  display: flex;
  justify-content: space-between;
  padding: 6px 0 14px;
  font-size: 0.9rem;
}

/* ---- PTT button ---------------------------------------------------- */

#ptt {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 22px 12px;
  border-radius: 24px;
  background: radial-gradient(circle at 50% 40%, #223, #11151a);
  border: 2px solid var(--line);
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
  transition: transform 0.05s ease, background 0.12s ease, border-color 0.12s ease;
}
/* Only in manual mode is it a big button you press. */
#ptt.pressable {
  aspect-ratio: 3 / 2;
  max-height: 44vh;
  font-size: 1.4rem;
  cursor: pointer;
}
#ptt.pressable:active {
  transform: scale(0.99);
}
#ptt[data-state="tx"] {
  background: radial-gradient(circle at 50% 40%, #7a241d, #4a1512);
  border-color: var(--tx);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--tx) 30%, transparent);
}
#ptt[data-state="idle"][data-manual="no"] {
  border-color: color-mix(in srgb, var(--ok) 35%, var(--line));
}
#ptt[data-state="muted"] {
  background: radial-gradient(circle at 50% 40%, #2a2f36, #14181d);
  border-color: var(--warn);
  color: var(--warn);
}
#ptt .ptt-hint {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--muted);
  text-align: center;
  padding: 0 16px;
}

/* ---- hands-free panel: level meter + sensitivity ------------------ */

.hf {
  margin: 12px 0 4px;
  display: grid;
  gap: 10px;
}
.meter {
  position: relative;
  height: 14px;
  border-radius: 8px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  overflow: hidden;
}
.meter-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: linear-gradient(90deg, #3a6, #6c4);
  transition: width 0.08s linear;
}
.meter-fill[data-open="yes"] {
  background: linear-gradient(90deg, var(--ok), #9e6);
}
.meter-mark {
  position: absolute;
  top: -2px;
  bottom: -2px;
  left: 40%;
  width: 2px;
  background: var(--warn);
}
.hf-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
  flex-wrap: wrap;
}
.seg {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 4px 10px 8px;
  margin: 0;
  flex: 1 1 auto;
}
.seg legend {
  color: var(--muted);
  font-size: 0.78rem;
  padding: 0 4px;
}
.seg label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-right: 12px;
  color: var(--text);
  font-size: 0.9rem;
}
.hf-row #calibrate {
  flex: 0 0 auto;
  align-self: end;
  min-height: 40px;
}
.danger.armed {
  background: color-mix(in srgb, var(--warn) 25%, var(--panel-2));
  border-color: var(--warn);
  color: #ffe6bd;
}

.controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 16px 0;
}
.controls label {
  gap: 4px;
}
.controls #panic {
  grid-column: 1 / -1;
}

/* ---- roster ------------------------------------------------------ */

.roster {
  list-style: none;
  margin: 6px 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.peer {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.peer.talking {
  border-color: var(--ok);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--ok) 25%, transparent);
}
.peer.empty {
  color: var(--muted);
  justify-content: center;
}
.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #0b0d10;
  flex: none;
}
.peer-main {
  display: grid;
  gap: 2px;
  min-width: 0;
}
.peer-name {
  font-weight: 600;
}
.peer-detail {
  font-size: 0.78rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.quality {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex: none;
  background: var(--muted);
}
.quality.good {
  background: var(--ok);
}
.quality.fair {
  background: var(--warn);
}
.quality.poor {
  background: #e0722d;
}
.quality.bad {
  background: var(--bad);
}
.quality.unknown {
  background: #55606b;
}

/* ---- event log --------------------------------------------- */

.log {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  max-height: 220px;
  overflow: auto;
  font-size: 0.8rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.log li {
  padding: 3px 0;
  border-bottom: 1px solid var(--panel-2);
  color: var(--muted);
}
.log .log-ok {
  color: var(--ok);
}
.log .log-warn {
  color: var(--warn);
}
.log .log-error {
  color: var(--bad);
}

.prefs {
  display: grid;
  gap: 10px;
  padding: 8px 0 12px;
}
.prefs label {
  flex-direction: row;
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--text);
  font-size: 0.95rem;
}
.prefs input[type="checkbox"] {
  width: 20px;
  height: 20px;
  min-height: 20px;
}

/* ---- toast --------------------------------------------- */

#toast {
  position: fixed;
  left: 50%;
  bottom: calc(16px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  max-width: 90vw;
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  font-size: 0.9rem;
  z-index: 10;
}
#toast[data-kind="warn"] {
  border-color: var(--warn);
}
#toast[data-kind="error"] {
  border-color: var(--bad);
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}