:root {
    --bg: #0f1117;
    --panel: #1a1d27;
    --border: #2a2e3a;
    --text: #e6e8ee;
    --muted: #9aa0ac;
    --accent: #5b8cff;
    --you: #2e7d5b;
    --interviewer: #3a4a8a;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.app {
    max-width: 1000px;
    margin: 0 auto;
    padding: 24px;
}

header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

h1 { font-size: 20px; margin: 0; flex: 1; }
h2 { font-size: 14px; margin: 0 0 8px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }

.status {
    font-size: 13px;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
}
.status.idle { color: var(--muted); }
.status.live { color: var(--accent); border-color: var(--accent); }

.recdot {
    font-size: 12px;
    font-weight: 600;
    color: #ff4d4d;
    letter-spacing: 0.5px;
    animation: recblink 1.4s steps(1) infinite;
}
@keyframes recblink { 50% { opacity: 0.25; } }

.config {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}
.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.config-grid label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    color: var(--muted);
}
.config-grid label.wide { grid-column: 1 / -1; }
.config-grid input,
.config-grid select,
.config-grid textarea {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
}

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips:empty { display: none; }
.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(91, 140, 255, .15);
    border: 1px solid var(--accent);
    color: var(--text);
    border-radius: 999px;
    padding: 3px 6px 3px 10px;
    font-size: 13px;
}
.chip-x {
    background: transparent;
    border: none;
    color: var(--muted);
    padding: 0;
    width: 18px;
    height: 18px;
    line-height: 1;
    font-size: 16px;
    border-radius: 999px;
    cursor: pointer;
}
.chip-x:hover { color: var(--text); background: rgba(255,255,255,.1); }

.controls, .say { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }

button {
    background: var(--panel);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 14px;
    cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .4; cursor: not-allowed; }

#startBtn { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Dev-only controls: dashed border + monospace label so they read as debug tools. */
button.dev { border-style: dashed; font-family: ui-monospace, monospace; opacity: .85; margin-left: auto; }

.say { align-items: center; }
.say input {
    flex: 1;
    background: var(--panel);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 9px 12px;
    font-size: 14px;
}

.media { display: flex; gap: 16px; margin-bottom: 16px; align-items: center; }
#webcamPreview {
    width: 240px;
    height: 135px;
    background: #000;
    border-radius: 8px;
    border: 1px solid var(--border);
    object-fit: cover;
}

.panes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pane {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}

.transcript, .log {
    height: 360px;
    overflow-y: auto;
    font-size: 14px;
    line-height: 1.5;
}

.row { margin-bottom: 10px; padding: 8px 10px; border-radius: 8px; }
.row.participant { background: rgba(46, 125, 91, .15); }
.row.interviewer { background: rgba(58, 74, 138, .18); }
.row .who { font-weight: 600; color: var(--muted); }
.row .ts { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; color: var(--muted); opacity: .7; }

.log { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--muted); }
.log-line { padding: 2px 0; border-bottom: 1px solid rgba(255,255,255,.03); word-break: break-word; }

.usage {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 16px;
}
.usage-grid { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; align-items: baseline; }
.usage-cost { font-size: 24px; font-weight: 600; color: var(--accent); font-variant-numeric: tabular-nums; }
.usage-meta { display: flex; gap: 16px; color: var(--muted); font-size: 13px; }
.usage-meta b { color: var(--text); font-variant-numeric: tabular-nums; }
.usage-breakdown { grid-column: 1 / -1; margin-top: 8px; border-top: 1px solid var(--border); padding-top: 8px; }
.usage-row { display: grid; grid-template-columns: 1fr auto auto; gap: 12px; font-size: 12px; padding: 2px 0; color: var(--muted); }
.usage-row .ut, .usage-row .uc { font-variant-numeric: tabular-nums; text-align: right; }
.usage-row .uc { color: var(--text); min-width: 72px; }

@media (max-width: 760px) {
    .panes { grid-template-columns: 1fr; }
    .usage-grid { grid-template-columns: 1fr; }
}