:root {
    --green: #0aa83f;
    --black: #090909;
    --panel: #151515;
    --panel2: #1d1d1d;
    --white: #fff;
    --muted: #aaa;
    --border: #3b3b3b;
    --danger: #c93434;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--black);
    color: var(--white);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.45;
}

button, input, select, textarea { font: inherit; }

button, .file-button {
    border: 1px solid var(--border);
    background: var(--panel2);
    color: var(--white);
    padding: 9px 13px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover, .file-button:hover { border-color: var(--green); }
button.primary { background: var(--green); border-color: var(--green); }
button.danger { color: #ff9999; border-color: var(--danger); background: transparent; }
button:disabled { opacity: .45; cursor: not-allowed; }

.page-header {
    padding: 22px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.page-header h1 { margin: 0 0 5px; }
.page-header p { margin: 0; color: var(--muted); }

.status-badge {
    padding: 7px 13px;
    border: 1px solid var(--border);
    border-radius: 20px;
    white-space: nowrap;
}

.authoring-layout {
    width: min(1200px, calc(100% - 30px));
    margin: 20px auto 60px;
    display: grid;
    gap: 18px;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 18px;
}

.panel-heading, .segment-header, .question-header, .nested-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.panel-heading h2, .nested-heading h3, .nested-heading h4 { margin: 0; }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0; }
.file-button { display: inline-block; }

.video-wrapper { background: #000; border: 1px solid var(--border); }
#videoPlayer { display: block; width: 100%; max-height: 650px; background: #000; }

.video-meta {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    color: var(--muted);
}

.timeline { width: 100%; cursor: pointer; }

.field-row { display: flex; flex-direction: column; gap: 6px; margin: 12px 0; }
.field-row.compact { max-width: 240px; }

input, select, textarea {
    width: 100%;
    background: #101010;
    color: var(--white);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 9px 10px;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--green);
    outline-offset: 1px;
}

.grid-3, .time-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.time-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.segment-card, .question-card {
    margin-top: 15px;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 7px;
    background: #111;
}

.question-card { background: #181818; }
.nested-section { margin-top: 16px; padding-top: 15px; border-top: 1px solid var(--border); }

.input-button { display: grid; grid-template-columns: 1fr auto; gap: 6px; }
.time-editor small { color: var(--muted); }

.focus-time-button, .focus-question-time-button {
    margin-top: 5px;
    padding: 5px 8px;
    font-size: .8rem;
}

.option-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 8px;
    margin-top: 8px;
    align-items: center;
}

.help, .muted, .selected-info { color: var(--muted); }

.debug-box {
    min-height: 80px;
    max-height: 300px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
    background: #050505;
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 12px;
    color: #b7ffca;
}

.debug-box.tall { min-height: 300px; }

@media (max-width: 800px) {
    .grid-3, .time-grid { grid-template-columns: 1fr; }
    .page-header { align-items: flex-start; flex-direction: column; }
    .option-row { grid-template-columns: 1fr; }
}