/* =========================================================
   DRAWER V3 — TriageAI Operator Brief Design System
   Single owner for DetailsDrawerV3 visuals.
   No legacy operator-brief / ticket-detail classes.
   ========================================================= */

.drawer-v3 {
  --drawer-font-ui: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --drawer-font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --drawer-weight-body: 500;
  --drawer-weight-value: 650;
  --drawer-weight-label: 800;

  --drawer-radius-panel: 0;
  --drawer-radius-section: 14px;
  --drawer-radius-inner: 11px;

  --drawer-space-1: 4px;
  --drawer-space-2: 7px;
  --drawer-space-3: 10px;
  --drawer-space-4: 13px;
  --drawer-space-5: 16px;
  --drawer-space-6: 20px;

  --drawer-bg: linear-gradient(180deg, rgba(7, 14, 17, 0.994), rgba(5, 10, 13, 0.998));
  --drawer-bg-radial: radial-gradient(circle at 0% 0%, rgba(92, 120, 132, 0.10), transparent 34%);
  --drawer-header-bg: rgba(8, 18, 20, 0.94);
  --drawer-surface: rgba(255, 255, 255, 0.038);
  --drawer-surface-strong: rgba(255, 255, 255, 0.058);
  --drawer-surface-soft: rgba(255, 255, 255, 0.026);

  --drawer-border: rgba(120, 153, 137, 0.12);
  --drawer-border-strong: rgba(120, 153, 137, 0.18);

  --drawer-text-primary: rgba(239, 246, 242, 0.94);
  --drawer-text-value: rgba(232, 242, 237, 0.90);
  --drawer-text-body: rgba(202, 218, 210, 0.80);
  --drawer-text-muted: rgba(154, 178, 171, 0.68);
  --drawer-text-label: rgba(184, 210, 201, 0.82);
  --drawer-text-metadata: rgba(154, 178, 171, 0.68);

  --drawer-accent-blue: rgba(111, 160, 184, 0.18);
  --drawer-accent-blue-border: rgba(111, 160, 184, 0.18);
  --drawer-accent-amber: rgba(224, 164, 92, 0.16);
  --drawer-accent-amber-border: rgba(224, 164, 92, 0.22);
  --drawer-accent-purple: rgba(199, 166, 197, 0.54);

  --drawer-shadow: -18px 0 54px rgba(0, 0, 0, 0.34);

  position: fixed;
  top: 54px;
  right: 0;
  bottom: 0;
  z-index: 95;
  width: min(740px, calc(100vw - 96px));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-left: 1px solid var(--drawer-border-strong);
  background: var(--drawer-bg-radial), var(--drawer-bg);
  box-shadow: var(--drawer-shadow);
  color: var(--drawer-text-primary);
  font-family: var(--drawer-font-ui);
}

body[data-theme="daylight"] .drawer-v3 {
  --drawer-bg: linear-gradient(180deg, rgba(255, 254, 250, 0.996), rgba(248, 246, 240, 0.996));
  --drawer-bg-radial: radial-gradient(circle at 0% 0%, rgba(188, 204, 219, 0.12), transparent 34%);
  --drawer-header-bg: rgba(255, 255, 255, 0.78);
  --drawer-surface: rgba(255, 255, 255, 0.62);
  --drawer-surface-strong: rgba(255, 255, 255, 0.74);
  --drawer-surface-soft: rgba(255, 255, 255, 0.50);

  --drawer-border: rgba(82, 76, 91, 0.11);
  --drawer-border-strong: rgba(82, 76, 91, 0.15);

  --drawer-text-primary: rgba(18, 23, 34, 0.94);
  --drawer-text-value: rgba(25, 31, 41, 0.90);
  --drawer-text-body: rgba(45, 52, 63, 0.82);
  --drawer-text-muted: rgba(91, 82, 111, 0.68);
  --drawer-text-label: rgba(91, 82, 111, 0.78);
  --drawer-text-metadata: rgba(91, 82, 111, 0.62);

  --drawer-accent-blue: rgba(188, 204, 219, 0.20);
  --drawer-accent-blue-border: rgba(88, 114, 132, 0.16);
  --drawer-accent-amber: rgba(229, 170, 132, 0.19);
  --drawer-accent-amber-border: rgba(168, 103, 72, 0.16);
  --drawer-accent-purple: rgba(199, 166, 197, 0.60);

  --drawer-shadow: -18px 0 54px rgba(31, 36, 43, 0.18);
}

/* Shell */

.drawer-v3__header {
  min-height: 68px;
  padding: 15px 22px 14px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--drawer-border);
  background: var(--drawer-header-bg);
}

.drawer-v3__body {
  padding: 14px;
  overflow-y: auto;
  display: grid;
  gap: 11px;
}

/* Typography roles */

.drawer-v3__title {
  margin: 4px 0 0;
  font-size: 21px;
  line-height: 1.13;
  font-weight: var(--drawer-weight-label);
  letter-spacing: -0.026em;
  color: var(--drawer-text-primary);
}

.drawer-v3__eyebrow {
  font-family: var(--drawer-font-mono);
  font-size: 10px;
  line-height: 1;
  font-weight: var(--drawer-weight-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--drawer-text-muted);
}

.drawer-v3__section-title {
  position: relative;
  margin: 0 0 11px;
  padding-left: 11px;
  font-family: var(--drawer-font-mono);
  font-size: 11px;
  line-height: 1;
  font-weight: var(--drawer-weight-label);
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--drawer-text-label);
}

.drawer-v3__section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  bottom: -1px;
  width: 2px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--drawer-accent-purple), var(--drawer-accent-amber-border));
}

.drawer-v3__matrix-label,
.drawer-v3__fact span,
.drawer-v3__route-list span,
.drawer-v3__signal-top span {
  font-family: var(--drawer-font-mono);
  font-size: 10px;
  line-height: 1;
  font-weight: var(--drawer-weight-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--drawer-text-metadata);
}

.drawer-v3__fact span,
.drawer-v3__route-list span,
.drawer-v3__signal-top span {
  font-size: 9px;
}

.drawer-v3__fact strong,
.drawer-v3__timeline-row strong,
.drawer-v3__route-top strong,
.drawer-v3__route-list strong,
.drawer-v3__signal-top strong {
  display: block;
  color: var(--drawer-text-value);
  font-size: 13px;
  line-height: 1.25;
  font-weight: var(--drawer-weight-value);
  letter-spacing: -0.006em;
}

.drawer-v3__copy-block p,
.drawer-v3__readout-row p,
.drawer-v3__timeline-row p,
.drawer-v3__route-top p,
.drawer-v3__signal p,
.drawer-v3__muted {
  color: var(--drawer-text-body);
  font-size: 13.5px;
  line-height: 1.5;
  font-weight: var(--drawer-weight-body);
}

/* Controls */

.drawer-v3__close {
  min-height: 34px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--drawer-border-strong);
  background: var(--drawer-surface-strong);
  color: var(--drawer-text-primary);
  font-weight: var(--drawer-weight-value);
}

/* Sections */

.drawer-v3__section {
  padding: 14px;
  border-radius: var(--drawer-radius-section);
  border: 1px solid var(--drawer-border);
  background: var(--drawer-surface);
}

.drawer-v3__context {
  display: grid;
  gap: 10px;
}

.drawer-v3__copy-block p {
  margin: 0;
}

/* Context matrices */

.drawer-v3__matrix {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 11px;
  padding: 12px;
  border-radius: var(--drawer-radius-inner);
  border: 1px solid var(--drawer-border);
}

.drawer-v3__matrix--identity {
  background: linear-gradient(135deg, var(--drawer-accent-blue), var(--drawer-surface-soft));
  border-color: var(--drawer-accent-blue-border);
}

.drawer-v3__matrix--routing {
  background: linear-gradient(135deg, var(--drawer-accent-amber), var(--drawer-surface-soft));
  border-color: var(--drawer-accent-amber-border);
}

.drawer-v3__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 13px;
}

/* Verdict */

.drawer-v3__verdict {
  margin: 8px 0 0;
  padding: 13px 14px;
  border-radius: var(--drawer-radius-inner);
  border: 1px solid var(--drawer-accent-amber-border);
  background: linear-gradient(135deg, var(--drawer-accent-amber), var(--drawer-surface-soft));
  color: var(--drawer-text-value);
  font-size: 13.5px;
  line-height: 1.38;
  font-weight: var(--drawer-weight-value);
}

/* Lists */

.drawer-v3__readout,
.drawer-v3__timeline,
.drawer-v3__signals,
.drawer-v3__evidence {
  display: grid;
  gap: 7px;
  margin-top: 9px;
}

.drawer-v3__readout-row,
.drawer-v3__timeline-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  align-items: start;
}

.drawer-v3__readout-row span {
  color: var(--drawer-accent-purple);
}

/* Two-column diagnostics */

.drawer-v3__grid {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap: 11px;
}

.drawer-v3__route-list {
  display: grid;
  gap: 7px;
  margin-top: 10px;
  padding-top: 9px;
  border-top: 1px solid var(--drawer-border);
}

.drawer-v3__route-list > div {
  display: grid;
  grid-template-columns: 82px minmax(0,1fr);
  gap: 9px;
}

/* Timeline */

.drawer-v3__timeline-row i {
  width: 7px;
  height: 7px;
  margin-top: 6px;
  border-radius: 999px;
  background: var(--drawer-accent-amber-border);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--drawer-accent-amber-border) 35%, transparent);
}

/* Evidence */

.drawer-v3__evidence {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.drawer-v3__evidence-row {
  min-height: 30px;
  padding: 7px 10px 7px 12px;
  border-radius: 8px;
  border: 1px solid var(--drawer-border);
  border-left: 3px solid var(--drawer-accent-purple);
  background: linear-gradient(135deg, color-mix(in srgb, var(--drawer-accent-purple) 18%, transparent), var(--drawer-surface-soft));
  color: var(--drawer-text-value);
  font-size: 12px;
  line-height: 1.25;
  font-weight: var(--drawer-weight-value);
}

/* Signals */

.drawer-v3__signal {
  padding: 12px;
  border-radius: var(--drawer-radius-inner);
  border: 1px solid var(--drawer-border);
  background: var(--drawer-surface-soft);
}

.drawer-v3__signal-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}

/* Responsive */

@media (max-width: 980px) {
  .drawer-v3 {
    inset: 54px 0 0 0;
    width: auto;
  }

  .drawer-v3__grid,
  .drawer-v3__facts,
  .drawer-v3__evidence {
    grid-template-columns: minmax(0,1fr);
  }
}

/* DRAWER V3 — Semantic accent system */

.drawer-v3__section {
  --drawer-section-accent: var(--drawer-accent-purple);
}

.drawer-v3__section:nth-of-type(1) {
  --drawer-section-accent: rgba(111, 160, 184, 0.82);
}

.drawer-v3__section:nth-of-type(2) {
  --drawer-section-accent: rgba(224, 164, 92, 0.86);
}

.drawer-v3__section:nth-of-type(3) {
  --drawer-section-accent: rgba(199, 166, 197, 0.86);
}

.drawer-v3__grid .drawer-v3__section:nth-child(1) {
  --drawer-section-accent: rgba(86, 190, 213, 0.82);
}

.drawer-v3__grid .drawer-v3__section:nth-child(2) {
  --drawer-section-accent: rgba(226, 120, 143, 0.82);
}

.drawer-v3__body > .drawer-v3__section:nth-of-type(4) {
  --drawer-section-accent: rgba(229, 170, 92, 0.86);
}

.drawer-v3__body > .drawer-v3__section:nth-of-type(5) {
  --drawer-section-accent: rgba(226, 120, 143, 0.86);
}

.drawer-v3__body > .drawer-v3__section:nth-of-type(6) {
  --drawer-section-accent: rgba(110, 196, 157, 0.80);
}

.drawer-v3__section-title {
  color: var(--drawer-text-label);
}

.drawer-v3__section-title::before {
  background: linear-gradient(
    180deg,
    var(--drawer-section-accent),
    color-mix(in srgb, var(--drawer-section-accent) 38%, transparent)
  );
}

.drawer-v3__section:hover {
  border-color: color-mix(in srgb, var(--drawer-section-accent) 32%, var(--drawer-border));
}

.drawer-v3__matrix-label {
  color: color-mix(in srgb, var(--drawer-section-accent) 60%, var(--drawer-text-metadata));
}

.drawer-v3__timeline-row {
  position: relative;
}

.drawer-v3__timeline-row:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 16px;
  bottom: -13px;
  width: 1px;
  background: color-mix(in srgb, var(--drawer-section-accent) 30%, transparent);
}

.drawer-v3__timeline-row i {
  position: relative;
  z-index: 1;
  background: var(--drawer-section-accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--drawer-section-accent) 18%, transparent);
}

.drawer-v3__evidence-row {
  border-left-color: var(--drawer-section-accent);
}

.drawer-v3__signal {
  border-left: 3px solid var(--drawer-section-accent);
}

.drawer-v3__verdict {
  border-left: 3px solid var(--drawer-section-accent);
}

.drawer-v3__fact strong {
  font-size: 13.5px;
}

.drawer-v3__copy-block p {
  font-size: 14px;
  line-height: 1.55;
}

.drawer-v3__readout-row p {
  font-size: 14px;
}

body[data-theme="daylight"] .drawer-v3__section-title {
  color: rgba(83, 72, 103, 0.76);
}

body[data-theme="daylight"] .drawer-v3__fact span,
body[data-theme="daylight"] .drawer-v3__route-list span,
body[data-theme="daylight"] .drawer-v3__signal-top span {
  color: rgba(76, 68, 92, 0.62);
}

/* Drawer V3 — Step 1: stronger semantic section headers */

.drawer-v3__section-title {
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.16em;
}

.drawer-v3__section:nth-of-type(1) .drawer-v3__section-title {
  color: rgba(232, 112, 156, 0.92);
}

.drawer-v3__section:nth-of-type(2) .drawer-v3__section-title {
  color: rgba(238, 170, 63, 0.94);
}

.drawer-v3__section:nth-of-type(3) .drawer-v3__section-title {
  color: rgba(198, 138, 230, 0.92);
}

.drawer-v3__grid .drawer-v3__section:nth-child(1) .drawer-v3__section-title {
  color: rgba(52, 198, 222, 0.92);
}

.drawer-v3__grid .drawer-v3__section:nth-child(2) .drawer-v3__section-title {
  color: rgba(236, 95, 132, 0.92);
}

.drawer-v3__body > .drawer-v3__section:nth-of-type(4) .drawer-v3__section-title {
  color: rgba(239, 159, 42, 0.94);
}

.drawer-v3__body > .drawer-v3__section:nth-of-type(5) .drawer-v3__section-title {
  color: rgba(238, 93, 132, 0.92);
}

.drawer-v3__body > .drawer-v3__section:nth-of-type(6) .drawer-v3__section-title {
  color: rgba(98, 211, 164, 0.90);
}

body[data-theme="daylight"] .drawer-v3__section:nth-of-type(1) .drawer-v3__section-title {
  color: rgba(203, 58, 112, 0.86);
}

body[data-theme="daylight"] .drawer-v3__section:nth-of-type(2) .drawer-v3__section-title {
  color: rgba(208, 119, 18, 0.90);
}

body[data-theme="daylight"] .drawer-v3__section:nth-of-type(3) .drawer-v3__section-title {
  color: rgba(131, 76, 170, 0.86);
}

body[data-theme="daylight"] .drawer-v3__grid .drawer-v3__section:nth-child(1) .drawer-v3__section-title {
  color: rgba(0, 133, 164, 0.88);
}

body[data-theme="daylight"] .drawer-v3__grid .drawer-v3__section:nth-child(2) .drawer-v3__section-title {
  color: rgba(204, 48, 91, 0.88);
}