:root {
    --bg: #0c0e15;
    --bg-card: #161a26;
    --bg-card-hover: #1d2231;
    --border: #232a3d;
    --fg: #e7eaf2;
    --fg-muted: #9aa1b4;
    --fg-dim: #5e6678;
    --accent: #76b900;
    --accent-dim: #4d7a00;
    --danger: #ef4444;
    --warn: #f59e0b;
    --ok: #22c55e;
    --shadow: 0 4px 16px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; }
html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 32px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
}
.brand h1 {
    margin: 0 0 2px 0;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.4px;
}
.brand .accent { color: var(--accent); }
.brand .tag {
    margin: 0;
    color: var(--fg-muted);
    font-size: 12px;
}
.status {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--fg-muted);
    font-size: 12px;
}
.dot {
    display: inline-block;
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--fg-dim);
}
.dot-ok { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.dot-grey { background: var(--fg-dim); }
.dot-bad { background: var(--danger); box-shadow: 0 0 8px var(--danger); }

nav.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    padding: 0 32px;
    background: var(--bg-card);
}
.tab, .subtab {
    background: transparent;
    border: none;
    color: var(--fg-muted);
    padding: 14px 22px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: color 120ms, border-color 120ms;
}
.tab:hover, .subtab:hover { color: var(--fg); }
.tab.active, .subtab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
nav.subtabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.subtab { padding: 10px 14px; font-size: 13px; }

main {
    padding: 24px 32px;
    max-width: 1400px;
    margin: 0 auto;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.layout-2col {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 24px;
}
@media (max-width: 900px) {
    .layout-2col { grid-template-columns: 1fr; }
}

.form-card, .convo-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 22px;
    box-shadow: var(--shadow);
}
.form-card h2, .convo-card h2 {
    margin: 0 0 16px 0;
    font-size: 16px;
    font-weight: 600;
}
.form-card label {
    display: block;
    margin-bottom: 14px;
    color: var(--fg-muted);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.form-card input,
.form-card select {
    width: 100%;
    margin-top: 6px;
    padding: 9px 12px;
    background: var(--bg);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 14px;
    text-transform: none;
    font-weight: normal;
    letter-spacing: 0;
}
.form-card input:focus,
.form-card select:focus {
    outline: none;
    border-color: var(--accent);
}

.actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}
.btn-primary, .btn-danger {
    border: none;
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 120ms;
}
.btn-primary {
    background: var(--accent);
    color: #0c0e15;
}
.btn-primary:hover:not(:disabled) { background: #8acc1a; }
.btn-danger {
    background: var(--danger);
    color: white;
}
.btn-danger:hover:not(:disabled) { background: #f87171; }
.btn-primary:disabled, .btn-danger:disabled {
    background: var(--fg-dim);
    color: var(--bg);
    cursor: not-allowed;
}

.hint {
    margin-top: 14px;
    color: var(--fg-muted);
    font-size: 12px;
    line-height: 1.6;
}
.status-line {
    margin-top: 14px;
    padding: 10px 12px;
    background: var(--bg);
    border-left: 3px solid var(--fg-dim);
    border-radius: 0 4px 4px 0;
    font-size: 13px;
    color: var(--fg-muted);
    min-height: 20px;
}
.status-line.ok { border-left-color: var(--ok); color: var(--fg); }
.status-line.bad { border-left-color: var(--danger); color: var(--fg); }
.status-line.busy { border-left-color: var(--warn); color: var(--fg); }

.convo-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}
.meters { display: flex; gap: 8px; }
.meter {
    width: 48px;
    height: 6px;
    background: var(--bg);
    border-radius: 3px;
    overflow: hidden;
}
.meter span {
    display: block;
    height: 100%;
    width: 0%;
    background: var(--accent);
    transition: width 60ms;
}
.meter.spk span { background: var(--warn); }

.transcript {
    background: var(--bg);
    border-radius: 6px;
    padding: 16px;
    height: 460px;
    overflow-y: auto;
    font-size: 13px;
}
.transcript .turn {
    margin-bottom: 10px;
    padding: 8px 12px;
    border-radius: 6px;
    line-height: 1.45;
}
.transcript .turn.agent {
    background: rgba(118, 185, 0, 0.08);
    border-left: 3px solid var(--accent);
}
.transcript .turn.customer {
    background: rgba(245, 158, 11, 0.08);
    border-left: 3px solid var(--warn);
    margin-left: 24px;
}
.transcript .turn .who {
    color: var(--fg-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 3px;
}
.transcript .turn.partial { opacity: 0.65; font-style: italic; }
.transcript .empty {
    color: var(--fg-dim);
    text-align: center;
    padding: 100px 0;
    font-size: 13px;
}

.markdown-body {
    background: var(--bg-card);
    padding: 28px 36px;
    border-radius: 8px;
    border: 1px solid var(--border);
    line-height: 1.65;
    font-size: 14px;
    color: var(--fg);
}
.markdown-body h1 { margin-top: 0; font-size: 22px; }
.markdown-body h2 { margin-top: 28px; font-size: 18px; color: var(--accent); border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.markdown-body h3 { font-size: 15px; color: var(--fg); }
.markdown-body table { border-collapse: collapse; margin: 14px 0; width: 100%; }
.markdown-body th, .markdown-body td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; font-size: 13px; }
.markdown-body th { background: var(--bg); }
.markdown-body code { background: var(--bg); padding: 2px 5px; border-radius: 3px; font-size: 12px; }
.markdown-body pre { background: var(--bg); padding: 12px; border-radius: 4px; overflow-x: auto; }
.markdown-body blockquote { border-left: 3px solid var(--accent); margin: 12px 0; padding: 4px 14px; color: var(--fg-muted); }
.markdown-body strong { color: var(--accent); }

#log-stream {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px;
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 12px;
    max-height: 480px;
    overflow-y: auto;
    color: var(--fg-muted);
    white-space: pre-wrap;
    margin: 0;
}

.logs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    padding: 22px 32px;
}
.logs-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 18px;
}
.logs-card h2 { margin: 0 0 12px 0; font-size: 15px; }
.logs-card .hint { font-size: 11px; color: var(--fg-dim); margin-top: 10px; }

table.latency {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    font-family: "SF Mono", Menlo, Consolas, monospace;
}
table.latency th, table.latency td {
    text-align: right;
    padding: 6px 10px;
    border-bottom: 1px solid var(--border);
}
table.latency th { color: var(--fg-muted); font-weight: 600; }
table.latency th:first-child, table.latency td:first-child {
    text-align: left;
}
table.latency tbody tr:hover { background: var(--bg-card-hover); }

.slider-val {
    color: var(--accent);
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 11px;
    margin-left: 8px;
}

.btn-secondary {
    background: var(--bg-card-hover);
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 8px 14px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
}
.btn-secondary:hover { background: var(--border); }

.md-toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 10px 32px 0 32px;
}
.md-status {
    font-size: 12px;
    color: var(--fg-muted);
    margin-left: auto;
}
.md-status-info { color: var(--fg-muted); }
.md-status-ok { color: var(--ok); }
.md-status-warn { color: var(--warn); }
.md-status-bad { color: var(--danger); }

.md-editor {
    width: calc(100% - 64px);
    margin: 18px 32px;
    min-height: 600px;
    background: var(--bg-card);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px;
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 12.5px;
    line-height: 1.55;
    resize: vertical;
    box-sizing: border-box;
}
.md-editor:focus { outline: 1px solid var(--accent); }

.train-pane { padding: 22px 32px; max-width: 1100px; }
.train-pane h2 { margin-top: 0; }
.train-pane h3 { margin-top: 28px; color: var(--accent); font-size: 17px; }
.train-pane ul, .train-pane ol { margin: 10px 0 14px 22px; }
.train-pane li { margin: 6px 0; line-height: 1.6; }
.train-pane code {
    background: var(--bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 12.5px;
    color: var(--accent);
}
.train-pane table { margin-top: 8px; }
.train-pane table td, .train-pane table th { padding: 8px 12px; }
.recorder-frame {
    width: 100%;
    height: 800px;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-top: 12px;
}

.studio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 14px;
    margin: 14px 0 22px 0;
}
.studio-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
}
.studio-card h3 {
    margin: 0 0 10px 0 !important;
    font-size: 13px !important;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--fg-muted) !important;
}
.studio-card label {
    display: block;
    font-size: 11px;
    color: var(--fg-muted);
    margin-top: 8px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.studio-card label select,
.studio-card label input {
    display: block;
    width: 100%;
    background: var(--bg);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 7px 9px;
    margin-top: 4px;
    font-size: 13px;
    font-family: inherit;
}

.studio-jobs h3 {
    margin: 22px 0 10px 0 !important;
    font-size: 14px !important;
    color: var(--accent) !important;
}
.studio-jobs-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.studio-job {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px 14px;
}
.studio-job-head {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    margin-bottom: 6px;
    font-family: "SF Mono", Menlo, monospace;
}
.studio-job-head strong { color: var(--fg); }
.studio-job-head .lang {
    background: rgba(118, 185, 0, 0.1);
    color: var(--accent);
    padding: 2px 7px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 600;
}
.studio-job-head .voice { color: var(--fg-muted); }
.studio-job-head .status {
    margin-left: auto;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
}
.studio-job-head .parent {
    background: rgba(118, 185, 0, 0.06);
    color: var(--fg-muted);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
}
.studio-improve {
    margin-left: 8px !important;
    padding: 3px 9px !important;
    font-size: 11px !important;
}
.studio-job-bar {
    height: 4px;
    background: rgba(255,255,255,0.04);
    border-radius: 2px;
    overflow: hidden;
}
.studio-job-bar span {
    display: block;
    height: 100%;
    background: var(--accent);
    transition: width 0.3s;
}
.studio-job-meta {
    margin-top: 6px;
    font-size: 11px;
    color: var(--fg-muted);
    font-family: "SF Mono", Menlo, monospace;
}

footer {
    display: flex;
    gap: 14px;
    justify-content: center;
    padding: 16px;
    border-top: 1px solid var(--border);
    color: var(--fg-dim);
    font-size: 11px;
}