:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #eef3f8;
  --text: #16202a;
  --muted: #5b6978;
  --line: #d8e0e8;
  --accent: #0c7c74;
  --accent-strong: #075f59;
  --accent-soft: #d9f1ec;
  --danger: #b3293a;
  --shadow: 0 18px 50px rgba(25, 42, 62, 0.12);
  --radius: 8px;
  font-family: Inter, "Segoe UI", "Malgun Gothic", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(140deg, rgba(12, 124, 116, 0.12), transparent 38%),
    linear-gradient(320deg, rgba(41, 87, 132, 0.12), transparent 42%),
    var(--bg);
  color: var(--text);
}

button,
select,
input {
  font: inherit;
}

.app-shell {
  width: min(1240px, calc(100vw - 32px));
  min-height: calc(100vh - 32px);
  margin: 16px auto;
  display: grid;
  gap: 14px;
}

.topbar,
.control-strip,
.meter-row,
.transcript-panel,
.event-panel {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(216, 224, 232, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand > div {
  min-width: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 8px;
  background: #102a43;
  flex: 0 0 auto;
}

.brand-mark span {
  align-self: end;
  border-radius: 4px;
  background: #71e0cf;
}

.brand-mark span:nth-child(1) {
  height: 42%;
}

.brand-mark span:nth-child(2) {
  height: 80%;
  background: #e5f7b5;
}

.brand-mark span:nth-child(3) {
  height: 58%;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 24px;
  line-height: 1.2;
  font-weight: 760;
}

.brand p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  overflow-wrap: anywhere;
}

.session-state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 12px;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 14px;
  font-weight: 680;
  white-space: nowrap;
}

.state-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #8b98a7;
}

.session-state[data-state="live"] {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.session-state[data-state="live"] .state-dot {
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(12, 124, 116, 0.12);
}

.session-state[data-state="error"] {
  background: #ffe8ec;
  color: var(--danger);
}

.session-state[data-state="error"] .state-dot {
  background: var(--danger);
}

.control-strip {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(220px, 1.2fr) auto auto auto;
  align-items: end;
  gap: 12px;
  padding: 16px;
}

.field,
.toggle {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 680;
}

select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 0 12px;
  outline: none;
}

select:focus,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(12, 124, 116, 0.28);
  outline-offset: 2px;
}

.toggle {
  min-height: 40px;
  grid-template-columns: auto 1fr;
  align-items: center;
  align-self: end;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
}

.toggle input {
  width: 17px;
  height: 17px;
  accent-color: var(--accent);
}

.actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  align-self: end;
  min-width: 0;
}

button {
  min-height: 40px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 0 13px;
  font-size: 14px;
  font-weight: 760;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: #b7c7d6;
}

button:disabled {
  color: #98a5b3;
  cursor: not-allowed;
}

button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.button-icon {
  display: inline-grid;
  width: 18px;
  place-items: center;
  margin-right: 4px;
}

.meter-row {
  display: grid;
  grid-template-columns: 1.8fr repeat(3, minmax(130px, auto));
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
}

.meter-block,
.metric {
  min-height: 44px;
  display: grid;
  gap: 6px;
}

.meter-block span,
.metric span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.metric strong {
  font-size: 15px;
  white-space: nowrap;
}

.meter {
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: #dce5ee;
}

.meter i {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #38b2a5, #e3bf4f);
  transition: width 90ms linear;
}

.permission-help {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(179, 41, 58, 0.28);
  border-radius: var(--radius);
  background: #fff4f6;
  color: #6f1d2a;
  box-shadow: var(--shadow);
}

.permission-help[hidden] {
  display: none;
}

.permission-help h2 {
  color: #8e2232;
}

.permission-help p {
  margin-top: 5px;
  font-size: 14px;
  line-height: 1.5;
}

.permission-actions {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}

.permission-actions a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(179, 41, 58, 0.22);
  border-radius: 8px;
  background: #ffffff;
  color: #7d1f2d;
  padding: 0 13px;
  font-size: 14px;
  font-weight: 760;
  text-decoration: none;
}

.transcript-grid {
  min-height: 430px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.transcript-panel {
  min-height: 430px;
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
}

.transcript-panel.emphasis {
  border-color: rgba(12, 124, 116, 0.35);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 58px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
}

.panel-header.compact {
  min-height: 48px;
}

h2 {
  font-size: 16px;
  line-height: 1.3;
  font-weight: 780;
}

.panel-header span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 680;
}

.transcript-body {
  padding: 22px;
  overflow: auto;
  font-size: 25px;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.transcript-body.output {
  font-size: 29px;
  font-weight: 740;
}

.empty {
  color: #8d9aa8;
  font-size: 17px;
  font-weight: 520;
}

.event-panel {
  min-height: 150px;
  overflow: hidden;
}

#eventLog {
  height: 128px;
  margin: 0;
  padding: 12px 18px 16px 34px;
  overflow: auto;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

#eventLog li::marker {
  color: #9cadbd;
}

@media (max-width: 980px) {
  .control-strip,
  .meter-row,
  .transcript-grid,
  .permission-help {
    grid-template-columns: 1fr;
  }

  .actions {
    width: 100%;
  }

  .permission-help {
    align-items: stretch;
    flex-direction: column;
  }

  .permission-actions {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100vw - 18px, 1240px);
    margin: 9px auto;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    font-size: 21px;
  }

  .brand {
    align-items: flex-start;
    width: 100%;
  }

  .brand > div {
    flex: 1 1 auto;
  }

  .brand p {
    display: none;
  }

  .transcript-body,
  .transcript-body.output {
    font-size: 21px;
    padding: 18px;
  }

  button {
    width: 100%;
  }

  .actions {
    grid-template-columns: 1fr;
  }
}