/* Training annotations timeline component.
   Pulled out of templates/admin/training_annotations/timeline.html so that the
   light and dark themes can both render the chart. The previous version
   hardcoded dark-only colors inline (rgb(24 24 27), rgb(39 39 42)) which made
   the modal and inputs invisible for users in light mode. Tokens live in
   _tokens.css. */

.ta-timeline {
    position: relative;
    width: 100%;
    height: 18rem;
    border: 1px solid var(--border-base);
    border-radius: 0.5rem;
    background: var(--surface-sunken);
    cursor: crosshair;
    overflow: hidden;
    user-select: none;
}

.ta-band {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 2.5rem;
    pointer-events: none;
}

.ta-empty {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    font-size: 0.75rem;
    color: var(--text-faint);
    font-style: italic;
}

.ta-overlays {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 2.5rem;
}

.ta-drag {
    position: absolute;
    top: 0;
    bottom: 2.5rem;
    display: none;
    background: var(--accent-purple-soft);
    border-left: 2px solid var(--accent-purple-strong);
    border-right: 2px solid var(--accent-purple-strong);
    pointer-events: none;
}

.ta-drag-label {
    position: absolute;
    top: -1.5rem;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    border-radius: 0.25rem;
    background: var(--accent-purple-strong);
    color: #ffffff;
    font-size: 10px;
    padding: 2px 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.ta-axis {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2.5rem;
    border-top: 1px solid var(--border-base);
    background: var(--surface-page);
    font-size: 10px;
    color: var(--text-muted);
}

.ta-axis-date { color: var(--text-faint); }
.ta-axis-time { font-weight: 500; color: var(--text-body); }
.ta-axis-tick { position: absolute; top: -6px; width: 1px; height: 6px; background: var(--border-strong); }
.ta-axis-wrap { position: absolute; top: 4px; text-align: center; line-height: 1.1; white-space: nowrap; }
.ta-axis-wrap.is-first { left: 4px; text-align: left; }
.ta-axis-wrap.is-last  { right: 4px; text-align: right; }
.ta-axis-wrap.is-mid   { transform: translateX(-50%); }

.ta-gridline {
    position: absolute;
    top: 0;
    bottom: 0;
    border-left: 1px dashed var(--chart-grid);
}

.ta-annotation {
    position: absolute;
    border-radius: 3px;
    font-size: 10px;
    color: #ffffff;
    padding: 2px 4px;
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    height: 20px;
    line-height: 16px;
}

.ta-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.ta-legend-item { display: inline-flex; align-items: center; gap: 4px; margin-right: 8px; }
.ta-legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 2px; }

/* ── Modal ─────────────────────────────────────────────────────── */
.ta-modal {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: none;
    align-items: center;
    justify-content: center;
    background: var(--surface-overlay);
}

.ta-modal__panel {
    border-radius: 0.5rem;
    background: var(--surface-card);
    padding: 1.5rem;
    width: 100%;
    max-width: 28rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
    color: var(--text-body);
    border: 1px solid var(--border-base);
}

.ta-modal__title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-strong);
}

.ta-modal__form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.ta-modal__label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 4px;
    display: block;
}

.ta-modal__hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.ta-modal__input,
.ta-modal__select,
.ta-modal__textarea {
    width: 100%;
    border-radius: 4px;
    border: 1px solid var(--border-base);
    background: var(--surface-input);
    color: var(--text-strong);
    padding: 6px 10px;
    font-size: 0.875rem;
    font-family: inherit;
}

.ta-modal__input:focus,
.ta-modal__select:focus,
.ta-modal__textarea:focus {
    outline: none;
    border-color: var(--action-special-bg);
    box-shadow: 0 0 0 2px var(--accent-purple-soft);
}

.ta-modal__error {
    font-size: 0.875rem;
    color: var(--action-danger-bg);
    display: none;
}

.ta-modal__actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    padding-top: 0.5rem;
}

.ta-modal__btn-cancel {
    border-radius: 0.5rem;
    border: 1px solid var(--border-base);
    padding: 6px 16px;
    font-size: 0.875rem;
    background: transparent;
    color: var(--text-body);
    cursor: pointer;
}
.ta-modal__btn-cancel:hover { background: var(--surface-sunken); }

.ta-modal__btn-save {
    border-radius: 0.5rem;
    background: var(--action-special-bg);
    color: var(--action-special-fg);
    padding: 6px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
}
.ta-modal__btn-save:hover { background: var(--action-special-bg-hover); }