/* Timeline-Komponente im Classic-Look:
   Card mit Tabs am oberen Rand, bunte Series-Indikatoren in Legende,
   Lane-Marker mit Farbpoints, gefuellte Area unter der Today-Linie. */

.spine-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-3);
  box-shadow: var(--shadow-1);
  overflow: visible;
  position: relative;
}

.spine-tabs {
  display: flex; align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 0 16px;
  gap: 4px;
  background: var(--surface-2);
  border-radius: var(--radius-3) var(--radius-3) 0 0;
}
.spine-tab {
  appearance: none;
  background: transparent;
  border: 0;
  padding: 12px 14px 11px;
  font-size: 13px; font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  position: relative;
  border-bottom: 3px solid transparent;
  margin-bottom: -1px;
  transition: color 120ms ease, border-color 120ms ease;
}
.spine-tab:hover { color: var(--ink-2); }
.spine-tab.is-active {
  color: var(--primary-2);
  border-bottom-color: var(--primary-2);
  font-weight: 600;
}
.spine-tab .tab-count {
  font-size: 10.5px;
  color: var(--muted);
  background: var(--canvas);
  padding: 1px 6px;
  border-radius: var(--radius-pill);
  margin-left: 5px;
  font-weight: 500;
}
.spine-tab.is-active .tab-count {
  background: var(--primary-softer);
  color: var(--primary-2);
}
.spine-tabs .right { margin-left: auto; display: flex; align-items: center; gap: 10px; padding: 0 4px; }
.spine-tabs .seg-toggle {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-2);
  padding: 2px;
}
.spine-tabs .seg-toggle button {
  appearance: none; background: transparent; border: 0;
  font-size: 11.5px; font-weight: 500;
  color: var(--muted);
  padding: 4px 10px;
  cursor: pointer;
  border-radius: 4px;
}
.spine-tabs .seg-toggle button:hover { color: var(--ink-2); }
.spine-tabs .seg-toggle button.is-on {
  background: var(--primary-2); color: #ffffff;
  box-shadow: 0 1px 2px rgba(37, 99, 235, 0.22);
}

.spine-head {
  display: flex; align-items: center;
  padding: 12px 18px;
  gap: 14px;
  border-bottom: 1px solid var(--line-2);
  background: var(--surface);
}
.spine-head .legend { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.spine-head .legend .lg {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; color: var(--ink-2);
}
.spine-head .legend .lg .sw {
  width: 16px; height: 3px;
  background: var(--primary-2);
  border-radius: 2px;
}
.spine-head .legend .lg.is-yest .sw { background: var(--muted-2); height: 0; border-top: 2px dashed var(--muted-2); border-radius: 0; }
.spine-head .legend .lg.is-target .sw { background: var(--ok); }
.spine-head .legend .lg.is-evt .sw { width: 10px; height: 10px; border-radius: 50%; background: var(--primary-2); }
.spine-head .legend .lg.is-chat .sw { width: 10px; height: 10px; border-radius: 50%; background: var(--warn); }
.spine-head .legend .lg.is-agent .sw { width: 10px; height: 10px; border-radius: 3px; background: var(--info); }
.spine-head .legend .lg.is-alert .sw { width: 10px; height: 10px; border-radius: 50%; background: var(--bad); }
.spine-head .hint {
  margin-left: auto;
  font-size: 11.5px; color: var(--muted);
  display: inline-flex; align-items: center; gap: 6px;
}

.spine-wrap {
  position: relative;
  padding: 14px 8px 6px;
}
.spine-svg {
  width: 100%;
  height: auto;
  display: block;
  font-family: var(--ui);
}

.spine-svg .s-grid { stroke: var(--line-3); stroke-width: 1; }
.spine-svg .s-axis { font-size: 10.5px; fill: var(--muted); font-family: var(--mono); }
.spine-svg .s-axis-y { font-size: 10px; fill: var(--muted); font-family: var(--mono); }
.spine-svg .s-lane-rule { stroke: var(--line-2); stroke-width: 1; }
.spine-svg .s-lane-lbl { font-size: 10.5px; fill: var(--muted); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }

.spine-svg .s-area-today { fill: var(--primary-3); fill-opacity: 0.14; }
.spine-svg .s-line { stroke: var(--primary-2); stroke-width: 2.4; fill: none; }
.spine-svg .s-line-m { stroke: var(--muted-2); stroke-width: 1.5; fill: none; stroke-dasharray: 4 4; opacity: 0.7; }
.spine-svg .s-target { stroke: var(--ok); stroke-width: 1.6; stroke-dasharray: 2 4; fill: none; }
.spine-svg .s-target-lbl { font-size: 10.5px; fill: var(--ok); font-family: var(--mono); font-weight: 600; }

.spine-svg .s-cursor { stroke: var(--primary-2); stroke-width: 1.2; stroke-dasharray: 3 3; fill: none; }
.spine-svg .s-cursor-pt { fill: var(--primary-2); stroke: #ffffff; stroke-width: 2; }
.spine-svg .s-sel { fill: var(--primary-3); fill-opacity: 0.12; stroke: var(--primary-3); stroke-width: 1; stroke-dasharray: 4 3; }

.spine-svg .s-now { stroke: var(--bad); stroke-width: 1.6; stroke-dasharray: 0; fill: none; }
.spine-svg .s-now-lbl { font-size: 10px; fill: var(--bad); font-family: var(--mono); font-weight: 700; letter-spacing: 0.04em; }

.spine-svg .s-mark .hit { fill: transparent; cursor: pointer; }
.spine-svg .s-mark { outline: none; }
.spine-svg .s-mark:focus-visible .ring { stroke: var(--primary-2); stroke-width: 2; stroke-dasharray: 3 3; }

.spine-svg .s-evt-ring { fill: #ffffff; stroke: var(--primary-3); stroke-width: 1.5; }
.spine-svg .s-evt-ring.is-warn { stroke: var(--bad); }
.spine-svg .s-evt-dot { fill: var(--primary-2); stroke: #ffffff; stroke-width: 1.8; }
.spine-svg .s-evt-dot.is-warn { fill: var(--bad); }
.spine-svg .s-evt-tag { font-size: 10.5px; fill: var(--ink-2); font-weight: 500; }
.spine-svg .s-evt-tag.is-warn { fill: var(--bad); font-weight: 600; }
.spine-svg .s-evt-time-inline { fill: var(--muted); font-family: var(--mono); font-size: 10px; }

.spine-svg .s-conv-bar { stroke: var(--warn); stroke-width: 3; stroke-linecap: round; }
.spine-svg .s-conv-bar.is-warn { stroke: var(--bad); }
.spine-svg .s-conv-cap { stroke: var(--warn); stroke-width: 2; }
.spine-svg .s-conv-cap.is-warn { stroke: var(--bad); }
.spine-svg .s-conv-ring { fill: transparent; stroke: transparent; }
.spine-svg .s-conv-lbl { font-size: 10.5px; fill: var(--ink-2); font-weight: 500; }
.spine-svg .s-conv-lbl.is-warn { fill: var(--bad); }
.spine-svg .s-conv-count { fill: var(--muted); }
.spine-svg .s-mark.is-focused .s-conv-ring { stroke: var(--warn); stroke-width: 1.5; stroke-dasharray: 3 3; fill: var(--warn-softer); fill-opacity: 0.4; }
.spine-svg .s-mark.is-focused .s-conv-ring.is-warn { stroke: var(--bad); fill: var(--bad-softer); }
.spine-svg .s-mark.is-focused .s-evt-ring { stroke-width: 2.5; }

.spine-svg .s-obs-ring { fill: #ffffff; stroke: var(--info); stroke-width: 1.5; }
.spine-svg .s-obs-glyph { fill: var(--info); }
.spine-svg .s-obs-tag { font-size: 10px; fill: var(--info); font-family: var(--mono); font-weight: 600; }

.spine-svg .s-drag-bar { stroke: var(--muted-2); stroke-width: 1.4; }
.spine-svg .s-drag-cap { stroke: var(--muted-2); stroke-width: 1.4; }
.spine-svg .s-drag-hint { font-size: 10.5px; fill: var(--muted); }

/* --- Detail panel --- */
.spine-detail {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 14px 18px;
  background: var(--surface-2);
  border-top: 1px solid var(--line-2);
  border-radius: 0 0 var(--radius-3) var(--radius-3);
  min-height: 64px;
}
.spine-detail .label {
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--primary-2);
}
.spine-detail .content { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.spine-detail .meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spine-detail .meta span { font-family: var(--mono); font-size: 12px; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.spine-detail .meta .tag {
  font-family: var(--ui); font-size: 11px; font-weight: 600;
  background: var(--primary-softer);
  color: var(--primary-2);
  padding: 2px 9px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
}
.spine-detail .meta .tag.is-warn { background: var(--bad-soft); color: var(--bad); }
.spine-detail .desc { font-size: 13px; color: var(--ink); }
.spine-detail .actions { display: flex; gap: 8px; flex-shrink: 0; }
.spine-detail .actions button {
  appearance: none;
  background: var(--primary-2);
  color: #ffffff;
  border: 0;
  height: 32px;
  padding: 0 14px;
  border-radius: var(--radius-2);
  font-size: 12.5px; font-weight: 500;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(37, 99, 235, 0.22);
  transition: filter 120ms ease, transform 120ms ease;
}
.spine-detail .actions button:hover { filter: brightness(1.06); transform: translateY(-1px); }
.spine-detail .placeholder {
  font-size: 13px; color: var(--muted);
  display: flex; align-items: center; gap: 6px;
  line-height: 1.45;
}
.spine-detail .placeholder .accent { color: var(--primary-2); font-weight: 500; }
.spine-detail .placeholder kbd {
  font-family: var(--mono); font-size: 10.5px;
  padding: 1px 6px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink-2);
}

/* --- Range action --- */
.spine-range-action {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-3);
  border-radius: var(--radius-2);
  padding: 8px 12px;
  display: flex; align-items: center; gap: 10px;
  font-size: 12.5px;
  z-index: 4;
}
.spine-range-action b { font-family: var(--mono); color: var(--primary-2); font-variant-numeric: tabular-nums; }
.spine-range-action button {
  appearance: none; background: var(--primary-2);
  color: #ffffff;
  border: 0;
  height: 28px; padding: 0 10px;
  font-size: 12px; font-weight: 500;
  border-radius: var(--radius-1);
  cursor: pointer;
}
.spine-range-action button:hover { filter: brightness(1.05); }
.spine-range-action button.close {
  background: transparent;
  color: var(--muted);
  width: 24px; padding: 0;
  font-size: 16px; line-height: 1;
}
.spine-range-action button.close:hover { background: var(--canvas); color: var(--ink); }