:root {
  --bg: #0c1117;
  --bg-elevated: #151c26;
  --bg-input: #1a2330;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8edf4;
  --text-muted: #8b98a8;
  --accent: #3dd6c6;
  --accent-dim: rgba(61, 214, 198, 0.15);
  --danger: #ff6b6b;
  --record: #ff4757;
  --radius: 12px;
  --font: "IBM Plex Sans", system-ui, sans-serif;
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(61, 214, 198, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(80, 120, 200, 0.08), transparent),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

.shell {
  max-width: 680px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.brand-name {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-tag {
  display: block;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.2rem;
}

.header-status {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  white-space: nowrap;
}

.header-status.ok { color: var(--accent); border-color: var(--accent-dim); background: var(--accent-dim); }

.tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.tab {
  font: inherit;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
}

.tab:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.tab.active { color: var(--accent); background: var(--accent-dim); }

.panel-head { margin-bottom: 1.25rem; }
.panel-head h1 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}
.panel-head p { color: var(--text-muted); font-size: 0.95rem; }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

@media (max-width: 560px) {
  .field-row { grid-template-columns: 1fr; }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.field span, .api-key-field span {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

select, textarea, input[type="password"] {
  font: inherit;
  color: var(--text);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem 0.8rem;
  width: 100%;
}

textarea { resize: vertical; min-height: 120px; }
select:focus, textarea:focus, input:focus {
  outline: none;
  border-color: rgba(61, 214, 198, 0.45);
}

.hint { color: var(--text-muted); font-size: 0.85rem; margin: -0.5rem 0 1rem; }

.recorder {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.btn {
  font: inherit;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.btn-primary { background: var(--accent); color: #06221f; }
.btn-primary:hover { filter: brightness(1.05); }
.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-record {
  background: rgba(255, 71, 87, 0.12);
  color: #ff8a95;
  border: 1px solid rgba(255, 71, 87, 0.35);
  min-width: 160px;
  justify-content: center;
  user-select: none;
  touch-action: none;
}
.btn-record.recording {
  background: var(--record);
  color: #fff;
  border-color: var(--record);
}
.record-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
}
.btn-record.recording .record-dot { animation: pulse 1s infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.upload-label { cursor: pointer; }

.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.85rem;
}

.result-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.result-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.result-text {
  font-size: 1.05rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.error {
  color: var(--danger);
  margin-top: 0.85rem;
  font-size: 0.9rem;
}

#ttsAudio {
  width: 100%;
  margin-top: 1rem;
}

.footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.api-key-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.8rem; }

/* Admin */
.shell-wide { max-width: 980px; }

.admin-login {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 420px;
}

.admin-login h1 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 0.4rem;
}

.admin-login p { color: var(--text-muted); margin-bottom: 1rem; font-size: 0.95rem; }
.admin-login code {
  font-size: 0.85em;
  background: var(--bg-input);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 720px) {
  .admin-grid { grid-template-columns: 1fr; }
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
}

.card-wide { grid-column: 1 / -1; }

.card h2 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.45rem;
}

.card-desc, .field-hint {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 0.85rem;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
  cursor: pointer;
  font-size: 0.95rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.stat {
  background: var(--bg-input);
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
}

.stat span {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat strong { font-size: 0.95rem; }

.model-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
  word-break: break-all;
}

.model-list li {
  background: var(--bg-input);
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
}

.model-list.missing li {
  color: #ffb4b4;
  background: rgba(255, 107, 107, 0.1);
}

.table-wrap { overflow-x: auto; margin-top: 0.75rem; }

.routing-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.routing-table th,
.routing-table td {
  text-align: left;
  padding: 0.5rem 0.4rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.routing-table th { color: var(--text-muted); font-weight: 500; }
.routing-table code { font-size: 0.8em; word-break: break-all; }

.log-box {
  margin-top: 0.75rem;
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem;
  font-size: 0.78rem;
  line-height: 1.45;
  max-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
  color: #b7c4d4;
}

.test-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 0.35rem;
}

.test-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.25rem 0.65rem;
  background: var(--bg-input);
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
}

.test-list li strong { font-size: 0.75rem; letter-spacing: 0.04em; }
.test-list li.pass strong { color: var(--accent); }
.test-list li.fail strong { color: var(--danger); }
.test-list li span { font-weight: 600; }
.test-list li small {
  grid-column: 1 / -1;
  color: var(--text-muted);
  font-size: 0.8rem;
  word-break: break-word;
}

#testAudio { width: 100%; margin-top: 1rem; }

.flow-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.flow-step {
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.8125rem;
}

.flow-arrow { color: var(--text-muted); }

.flow-banner {
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  margin-bottom: 1.25rem;
}

.flow-muted { color: var(--accent); display: block; margin-top: 0.25rem; }