:root,
html[data-theme="light"] {
  --bg-canvas: #f5f7fa;
  --bg-surface: #ffffff;
  --bg-subtle: #eef2f6;
  --bg-banner: #eff6ff;
  --bg-buffer: #f1f5f9;
  --bg-done: #ecfdf5;
  --bg-amber: #fffbeb;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --border-hairline: #e2e8f0;
  --border-strong: #cbd5e1;
  --accent: #0f62fe;
  --accent-hover: #0043ce;
  --accent-soft: #dbeafe;
  --emerald: #059669;
  --emerald-text: #065f46;
  --amber: #b45309;
  --amber-border: #fcd34d;
  --danger: #dc2626;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 6px 18px rgba(15, 23, 42, 0.07);
}

html[data-theme="dark"] {
  --bg-canvas: #0b0f17;
  --bg-surface: #121824;
  --bg-subtle: #1a2233;
  --bg-banner: #132038;
  --bg-buffer: #161f2e;
  --bg-done: #09261e;
  --bg-amber: #271d0b;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-hairline: #232f42;
  --border-strong: #334155;
  --accent: #38bdf8;
  --accent-hover: #7dd3fc;
  --accent-soft: #16304d;
  --emerald: #34d399;
  --emerald-text: #6ee7b7;
  --amber: #fbbf24;
  --amber-border: #78350f;
  --danger: #f87171;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-primary);
  background-color: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
}

code,
pre,
.mono {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

code {
  font-size: 0.86em;
  background: var(--bg-subtle);
  padding: 0.12rem 0.38rem;
  border-radius: 4px;
  border: 1px solid var(--border-hairline);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Header & Telemetry Strip */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-hairline);
  box-shadow: var(--shadow-sm);
}

.header-inner,
.telemetry-inner,
.main-shell,
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  flex-wrap: wrap;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.04em;
}

html[data-theme="dark"] .brand-mark {
  color: #0b0f17;
}

.site-title {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-tagline {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.segmented {
  display: inline-flex;
  background: var(--bg-subtle);
  padding: 2px;
  border-radius: 7px;
  border: 1px solid var(--border-hairline);
}

.seg-btn {
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.seg-btn.is-active {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.ghost-btn,
.icon-btn,
.primary-btn,
.danger-btn {
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 7px;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.ghost-btn,
.icon-btn {
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-hairline);
}

.ghost-btn:hover,
.icon-btn:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.ghost-btn[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

.danger-hover:hover {
  color: var(--danger);
  border-color: var(--danger);
}

.primary-btn {
  background: var(--accent);
  color: #ffffff;
  border: 1px solid var(--accent);
}

html[data-theme="dark"] .primary-btn {
  color: #0b0f17;
}

.primary-btn:hover {
  background: var(--accent-hover);
}

.danger-btn {
  background: var(--danger);
  color: #ffffff;
  border: 1px solid var(--danger);
}

.file-label {
  display: inline-flex;
  align-items: center;
}

.telemetry-bar {
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-hairline);
}

.telemetry-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding-top: 0.55rem;
  padding-bottom: 0.55rem;
  flex-wrap: wrap;
}

.ring-summary {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.progress-ring {
  transform: rotate(-90deg);
  flex-shrink: 0;
}

.ring-track {
  fill: none;
  stroke: var(--border-strong);
  stroke-width: 5.5;
}

.ring-fill {
  fill: none;
  stroke: var(--emerald);
  stroke-width: 5.5;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.3s ease;
}

.kpi-value {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

.kpi-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
}

.kpi-grid {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  flex-wrap: wrap;
}

.kpi-item {
  display: flex;
  flex-direction: column;
}

.kpi-stat {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.primary-tabs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.tab-btn {
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.83rem;
  font-weight: 600;
  padding: 0.42rem 0.78rem;
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface);
}

.tab-btn.is-active {
  background: var(--bg-surface);
  color: var(--accent);
  border-color: var(--border-hairline);
  box-shadow: var(--shadow-sm);
}

/* Main Content */
.main-shell {
  padding-top: 1.35rem;
  padding-bottom: 3rem;
}

.rules-banner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.rule-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow-sm);
}

.rule-card h2 {
  margin: 0 0 0.25rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent);
}

.rule-card p {
  margin: 0;
  font-size: 0.83rem;
  color: var(--text-secondary);
}

/* Tracker 2-Column Layout */
.tracker-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.phase-rail {
  position: sticky;
  top: 138px;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 10px;
  padding: 0.75rem;
  max-height: calc(100vh - 156px);
  overflow-y: auto;
  box-shadow: var(--shadow-sm);
}

.rail-header {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 0.2rem 0.45rem 0.55rem;
}

.rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rail-link {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.81rem;
  text-align: left;
  padding: 0.42rem 0.5rem;
  border-radius: 6px;
  cursor: pointer;
}

.rail-link:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.rail-link.is-complete {
  color: var(--emerald-text);
}

.rail-code {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: var(--bg-subtle);
  flex-shrink: 0;
}

.rail-title {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rail-frac {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Search & Filter Bar */
.filter-bar {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  box-shadow: var(--shadow-sm);
}

.search-input,
.select-input,
.notes-textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.88rem;
  color: var(--text-primary);
  background: var(--bg-canvas);
  border: 1px solid var(--border-hairline);
  border-radius: 7px;
  padding: 0.52rem 0.75rem;
}

.search-input:focus,
.select-input:focus,
.notes-textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: transparent;
}

.filter-pills {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.pill-btn {
  border: 1px solid var(--border-hairline);
  background: var(--bg-canvas);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.28rem 0.68rem;
  border-radius: 999px;
  cursor: pointer;
}

.pill-btn.is-active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

html[data-theme="dark"] .pill-btn.is-active {
  color: #0b0f17;
}

/* Phase Cards (Combining Sheet Block Style + Doc Study Guide) */
.phases-list {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.phase-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 148px;
}

.phase-banner {
  background: var(--bg-banner);
  padding: 0.95rem 1.15rem;
  border-bottom: 1px solid var(--border-hairline);
}

.phase-card[data-buffer="true"] .phase-banner {
  background: var(--bg-buffer);
}

.phase-top-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.phase-heading {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.phase-meta-badges {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.badge-pill {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0.18rem 0.52rem;
  border-radius: 5px;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  color: var(--text-secondary);
}

.phase-subnote {
  margin: 0.35rem 0 0;
  font-size: 0.81rem;
  color: var(--amber);
  font-weight: 500;
}

.phase-goal {
  margin: 0.45rem 0 0.65rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.phase-progress-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.phase-progress {
  flex: 1;
  height: 8px;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  border-radius: 999px;
  background: var(--border-hairline);
  overflow: hidden;
}

.phase-progress::-webkit-progress-bar {
  background: var(--border-hairline);
  border-radius: 999px;
}

.phase-progress::-webkit-progress-value {
  background: var(--emerald);
  border-radius: 999px;
  transition: width 0.25s ease;
}

.phase-progress::-moz-progress-bar {
  background: var(--emerald);
  border-radius: 999px;
}

.phase-progress-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 112px;
  text-align: right;
}

/* Expandable Study Guide from Google Doc */
.guide-details {
  border-bottom: 1px solid var(--border-hairline);
  background: var(--bg-canvas);
}

.guide-summary {
  padding: 0.65rem 1.15rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  user-select: none;
}

.guide-summary:hover {
  background: var(--bg-subtle);
}

.guide-content {
  padding: 0.25rem 1.25rem 1rem;
  display: grid;
  gap: 0.85rem;
}

.guide-block h4 {
  margin: 0.35rem 0 0.35rem;
  font-size: 0.88rem;
  color: var(--text-primary);
}

.guide-block ul {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.84rem;
  color: var(--text-secondary);
  display: grid;
  gap: 0.32rem;
}

/* Task Rows */
.subtable-title {
  padding: 0.55rem 1.15rem;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.checklist-stack {
  display: flex;
  flex-direction: column;
}

.task-row {
  display: grid;
  grid-template-columns: 26px 112px minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.75rem;
  padding: 0.68rem 1.15rem;
  border-bottom: 1px solid var(--border-hairline);
  cursor: pointer;
  transition: background-color 0.12s ease;
}

.task-row:last-child {
  border-bottom: 0;
}

.task-row:hover {
  background: var(--bg-subtle);
}

.task-row[data-done="true"] {
  background: var(--bg-done);
}

.task-row[data-done="true"] .task-desc {
  color: var(--emerald-text);
  text-decoration: line-through;
}

.task-checkbox {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  accent-color: var(--emerald);
  cursor: pointer;
}

.task-week {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  padding-top: 1px;
}

.task-desc {
  font-size: 0.89rem;
  color: var(--text-primary);
}

.task-tags {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.tag-chip {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.1rem 0.42rem;
  border-radius: 4px;
  border: 1px solid var(--border-hairline);
  background: var(--bg-canvas);
  color: var(--text-muted);
}

.tag-chip[data-kind="lab"] {
  color: var(--accent);
  border-color: var(--accent-soft);
}

.tag-chip[data-kind="project"],
.tag-chip[data-kind="exit"] {
  color: var(--emerald);
}

.tag-chip[data-stretch="true"] {
  color: var(--amber);
  background: var(--bg-amber);
  border-color: var(--amber-border);
}

/* Phase Notes Drawer */
.notes-details {
  border-top: 1px solid var(--border-hairline);
  background: var(--bg-surface);
}

.notes-summary {
  padding: 0.55rem 1.15rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
}

.notes-box {
  padding: 0 1.15rem 0.9rem;
}

.notes-textarea {
  min-height: 68px;
  resize: vertical;
}

/* Blueprint, Safety & Interview Views */
.section-intro {
  margin-bottom: 1.25rem;
}

.section-intro h2 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.section-intro p {
  margin: 0;
  color: var(--text-secondary);
  max-width: 78ch;
}

.evolution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(275px, 1fr));
  gap: 0.9rem;
  margin-bottom: 1.25rem;
}

.evo-card,
.panel-card,
.drill-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 11px;
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow-sm);
}

.panel-card {
  margin-bottom: 1.15rem;
}

.evo-stage {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
}

.evo-card h3 {
  margin: 0.25rem 0 0.3rem;
  font-size: 1rem;
}

.evo-stack {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  color: var(--emerald);
  margin-bottom: 0.45rem;
}

.evo-card p {
  margin: 0;
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.split-panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.15rem;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.panel-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.02rem;
}

.muted-sub {
  margin: 0;
  font-size: 0.83rem;
  color: var(--text-muted);
}

.diagram-box {
  width: 100%;
  overflow-x: auto;
  padding: 0.4rem 0;
}

.panel-caption {
  margin: 0.55rem 0 0;
  font-size: 0.81rem;
  color: var(--text-muted);
}

.code-block {
  margin: 0;
  padding: 1rem;
  border-radius: 8px;
  background: var(--bg-canvas);
  border: 1px solid var(--border-hairline);
  font-size: 0.8rem;
  line-height: 1.5;
  overflow-x: auto;
}

.code-inline-box {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  padding: 0.65rem 0.8rem;
  border-radius: 7px;
  background: var(--bg-canvas);
  border: 1px solid var(--border-hairline);
}

.clean-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.5rem;
  font-size: 0.87rem;
  color: var(--text-secondary);
}

.compact-p {
  margin: 0.35rem 0 0.7rem;
  font-size: 0.87rem;
  color: var(--text-secondary);
}

.cut-label {
  margin: 0.5rem 0 0.2rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.amber-text {
  color: var(--amber);
}

.emerald-text {
  color: var(--emerald);
}

.callout-amber {
  background: var(--bg-amber);
  border: 1px solid var(--amber-border);
  border-radius: 11px;
  padding: 1rem 1.2rem;
  margin-bottom: 1.15rem;
}

.callout-amber h2 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--amber);
}

.callout-amber p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-primary);
}

/* Tables */
.table-scroll {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.62rem 0.75rem;
  border-bottom: 1px solid var(--border-hairline);
  vertical-align: top;
}

.data-table th {
  background: var(--bg-subtle);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.ext-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.ext-link:hover {
  text-decoration: underline;
}

/* Interview Flashcards */
.drills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.drill-round {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--accent);
}

.drill-q {
  margin: 0.35rem 0 0.75rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.drill-ans {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-hairline);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Footer & Modals */
.site-footer {
  border-top: 1px solid var(--border-hairline);
  background: var(--bg-surface);
  padding: 1.1rem 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.modal-dialog {
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 0;
  max-width: 480px;
  width: calc(100% - 2rem);
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.modal-dialog::backdrop {
  background: rgba(15, 23, 42, 0.55);
}

.modal-body {
  padding: 1.25rem;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.modal-head h2,
.modal-body h2 {
  margin: 0 0 0.4rem;
  font-size: 1.08rem;
}

.modal-actions-row {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin-top: 0.9rem;
}

.status-msg {
  margin: 0.65rem 0 0;
  font-size: 0.82rem;
  color: var(--emerald);
  min-height: 1.2em;
}

.empty-state {
  padding: 2rem;
  text-align: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: 10px;
  color: var(--text-muted);
}

@media (max-width: 920px) {
  .tracker-layout {
    grid-template-columns: 1fr;
  }

  .phase-rail {
    position: static;
    max-height: none;
  }

  .rail-list {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }

  .rail-link {
    width: auto;
    white-space: nowrap;
  }
}

@media (max-width: 640px) {
  .task-row {
    grid-template-columns: 24px minmax(0, 1fr);
  }

  .task-week,
  .task-tags {
    grid-column: 2;
  }
}

@media print {
  .site-header,
  .phase-rail,
  .filter-bar,
  .site-footer {
    position: static;
  }
}