/* ============================================================
   IBA FLOW — "SEMESTER DEPARTURES"
   Neo-brutalist transit-board design. Cream paper, hard ink
   borders, crimson signage, mono timetable data.
   ============================================================ */

@font-face {
  font-family: "Archivo Black";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("font-archivo-black.woff2") format("woff2");
}

@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("font-space-grotesk.woff2") format("woff2");
}

@font-face {
  font-family: "Space Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("font-space-mono.woff2") format("woff2");
}

@font-face {
  font-family: "Space Mono";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("font-space-mono-bold.woff2") format("woff2");
}

:root {
  color-scheme: light;
  --paper: #f2ecdf;
  --card: #fffdf6;
  --card-muted: #f6f1e4;
  --ink: #141210;
  --ink-soft: #4d473e;
  --ink-faint: #8b8478;
  --crimson: #8d0f1f;
  --crimson-deep: #650a16;
  --crimson-soft: #f3dcd8;
  --signal: #ffc41f;
  --signal-soft: #ffedb5;
  --led: #2fd068;
  --success: #0c6b3d;
  --success-soft: #ddeede;
  --warning: #9a5b00;
  --warning-soft: #ffeccc;
  --danger: #a31e14;
  --danger-soft: #f6ddd8;
  --line: #141210;
  --shadow-card: 6px 6px 0 var(--ink);
  --shadow-inner-card: 3px 3px 0 var(--ink);
  --shadow-btn: 3px 3px 0 var(--ink);
  --font-display: "Archivo Black", "Arial Black", sans-serif;
  --font-body: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-mono: "Space Mono", "Consolas", monospace;
  font-family: var(--font-body);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    repeating-linear-gradient(0deg, transparent 0 27px, rgba(20, 18, 16, 0.055) 27px 28px),
    repeating-linear-gradient(90deg, transparent 0 27px, rgba(20, 18, 16, 0.055) 27px 28px);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--crimson);
  color: #fff;
}

::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--paper);
}

::-webkit-scrollbar-thumb {
  background: var(--ink);
  border: 3px solid var(--paper);
}

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

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- Departures-board header ---------- */

.app-header {
  background: var(--ink);
  color: #fff;
  border-bottom: 3px solid var(--ink);
}

.app-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 18px 24px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: inline-grid;
  flex: 0 0 auto;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--crimson);
  color: #fff;
  border: 2px solid #fff;
  box-shadow: 3px 3px 0 rgba(255, 255, 255, 0.25);
}

h1,
h2 {
  margin: 0;
}

h1 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1;
  color: #fff;
  text-transform: uppercase;
  text-shadow: 3px 3px 0 var(--crimson);
}

.eyebrow {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

h2 {
  margin-top: 4px;
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

/* Ticker strip */

.ticker {
  overflow: hidden;
  border-top: 2px solid rgba(255, 255, 255, 0.18);
  background: var(--crimson);
  color: #fff;
}

.ticker-track {
  display: inline-flex;
  white-space: nowrap;
  animation: ticker-roll 32s linear infinite;
}

.ticker-track span {
  padding: 5px 0;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

@keyframes ticker-roll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ticker-track {
    animation: none;
  }
}

/* ---------- Header tabs (platform signs) ---------- */

.header-tabs {
  display: flex;
  gap: 6px;
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 8px 24px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  background: var(--ink);
}

.header-tabs::-webkit-scrollbar {
  display: none;
}

.header-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex: 1 1 0;
  min-height: 36px;
  border: 2px solid rgba(255, 255, 255, 0.22);
  border-radius: 0;
  padding: 0 12px;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}

.header-tab:hover {
  border-color: var(--signal);
  background: rgba(255, 196, 31, 0.12);
  color: var(--signal);
}

/* informational tabs read as quiet text links */
.header-tab.tab-info {
  border: 0;
  border-bottom: 2px solid rgba(255, 255, 255, 0.35);
  background: transparent;
  color: rgba(255, 255, 255, 0.8);
}

.header-tab.tab-info:hover {
  border-bottom-color: var(--signal);
  background: transparent;
  color: var(--signal);
}

/* feature tabs read as buttons: boxed on the black band */
.header-tab.tab-feature {
  border-color: rgba(255, 255, 255, 0.25);
  background: transparent;
  color: #fff;
}

.header-tab.tab-feature:hover {
  border-color: var(--signal);
  background: rgba(255, 196, 31, 0.12);
  color: var(--signal);
}

/* gap between the info group and the feature group */
.header-tab.tab-info + .header-tab.tab-feature {
  margin-left: 18px;
  position: relative;
}

.header-tab.tab-info + .header-tab.tab-feature::before {
  content: "";
  position: absolute;
  left: -11px;
  top: 4px;
  bottom: 4px;
  border-left: 2px solid rgba(255, 255, 255, 0.25);
}

.soon-tag {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--ink);
  padding: 1px 5px;
  background: var(--signal);
  color: var(--ink);
  font-size: 0.52rem;
  letter-spacing: 0.1em;
}

/* ---------- Shared rows ---------- */

.sync-panel,
.search-row,
.preference-row,
.panel-header,
.schedule-actions,
.chip-row,
.meta-row,
.card-actions,
.generated-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sync-panel {
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* ---------- Pills & status ---------- */

.source-link,
.status-pill,
.course-pill,
.tiny-pill,
.mvp-badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  white-space: nowrap;
}

.source-link {
  border: 2px solid rgba(255, 255, 255, 0.5);
  padding: 0 13px;
  background: transparent;
  color: #fff;
  text-decoration: none;
  text-transform: uppercase;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}

.source-link:hover {
  border-color: var(--signal);
  background: var(--signal);
  color: var(--ink);
}

.status-pill {
  max-width: 100%;
  white-space: normal;
  border: 2px solid var(--ink);
  padding: 5px 11px;
  background: var(--card);
  color: var(--ink-soft);
  text-transform: uppercase;
}

.status-pill::before {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-right: 9px;
  background: var(--ink-faint);
  content: "";
}

.app-header .status-pill {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.92);
}

.status-pill.live::before {
  background: var(--led);
  box-shadow: 0 0 8px var(--led);
}

.app-header .status-pill.live {
  border-color: #fff;
  background: rgba(47, 208, 104, 0.12);
  color: #fff;
}

.status-pill.syncing::before {
  background: var(--signal);
  animation: blink 0.9s steps(2, start) infinite;
}

@keyframes blink {
  to {
    visibility: hidden;
  }
}

.status-pill.stale {
  border-color: var(--warning);
  background: var(--warning-soft);
  color: var(--warning);
}

.status-pill.stale::before {
  background: var(--warning);
}

.status-pill.error {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger);
}

.status-pill.error::before {
  background: var(--danger);
}

.app-header .status-pill.stale,
.app-header .status-pill.error {
  background: rgba(0, 0, 0, 0.3);
}

.course-group-title .status-pill {
  min-height: 24px;
  padding: 2px 9px;
  font-size: 0.66rem;
  background: var(--card-muted);
}

/* ---------- Buttons: chunky press physics ---------- */

.primary-button,
.secondary-button,
.ghost-button,
.icon-button {
  min-height: 42px;
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 0 16px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1;
  box-shadow: var(--shadow-btn);
  transition: transform 90ms ease, box-shadow 90ms ease, background 120ms ease, color 120ms ease;
}

.primary-button:hover:not(:disabled),
.secondary-button:hover:not(:disabled),
.ghost-button:hover:not(:disabled) {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}

.primary-button:active:not(:disabled),
.secondary-button:active:not(:disabled),
.ghost-button:active:not(:disabled) {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 var(--ink);
}

.primary-button {
  background: var(--crimson);
  color: #fff;
}

.primary-button:hover:not(:disabled) {
  background: var(--crimson-deep);
}

.app-header .primary-button {
  border-color: #fff;
  box-shadow: 3px 3px 0 rgba(255, 255, 255, 0.35);
  background: var(--crimson);
}

.app-header .primary-button:hover:not(:disabled) {
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.45);
}

.app-header .primary-button:active:not(:disabled) {
  box-shadow: 0 0 0 rgba(255, 255, 255, 0.4);
}

.secondary-button {
  background: var(--ink);
  color: #fff;
}

.secondary-button:hover:not(:disabled) {
  background: #2b2722;
}

.ghost-button {
  background: var(--card);
  color: var(--ink);
}

.ghost-button:hover:not(:disabled) {
  background: var(--signal);
}

/* ---------- Layout ---------- */

.app-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px 24px 56px;
}

.workspace {
  display: grid;
  gap: 18px;
}

.control-band,
.selected-strip,
.panel {
  border: 2px solid var(--ink);
  border-radius: 0;
  background: var(--card);
  box-shadow: var(--shadow-card);
}

.control-band {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(280px, 1fr);
  gap: 16px;
  padding: 18px;
}

.selected-strip,
.main-grid {
  position: relative;
  z-index: 1;
}

.field-group {
  display: grid;
  align-content: start;
  gap: 8px;
}

label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

input,
select,
textarea {
  width: 100%;
  border: 2px solid var(--ink);
  border-radius: 0;
  background: #fff;
  color: var(--ink);
  outline: none;
  box-shadow: none;
  transition: box-shadow 100ms ease;
}

input,
select {
  min-height: 46px;
  padding: 0 13px;
}

textarea {
  min-height: 88px;
  padding: 12px;
  line-height: 1.45;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: var(--ink-faint);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--crimson);
  box-shadow: 3px 3px 0 var(--crimson);
}

/* ---------- Search + suggestions ---------- */

.search-group {
  position: relative;
}

.search-row {
  align-items: stretch;
}

.suggestions {
  position: absolute;
  z-index: 100;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  display: none;
  max-height: 300px;
  overflow: auto;
  border: 2px solid var(--ink);
  background: var(--card);
  box-shadow: 6px 6px 0 var(--ink);
}

.suggestions.open {
  display: block;
}

.suggestion {
  width: 100%;
  min-height: 44px;
  border: 0;
  border-radius: 0;
  padding: 11px 14px;
  background: var(--card);
  color: var(--ink);
  text-align: left;
  font-weight: 600;
}

.suggestion + .suggestion {
  border-top: 1px dashed rgba(20, 18, 16, 0.3);
}

.suggestion:hover,
.suggestion:focus {
  background: var(--crimson);
  color: #fff;
}

/* ---------- Selected strip ---------- */

.selected-strip {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
}

.selected-block {
  min-width: 0;
}

.chip-row {
  flex-wrap: wrap;
  min-height: 34px;
  margin-top: 9px;
}

.course-pill {
  border: 2px solid var(--ink);
  padding: 4px 7px 4px 11px;
  background: var(--crimson);
  color: #fff;
  text-transform: uppercase;
  font-size: 0.7rem;
  box-shadow: 2px 2px 0 var(--ink);
}

.course-pill button,
.tiny-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-left: 8px;
  border: 0;
  border-radius: 0;
  background: #fff;
  color: var(--crimson);
  font-weight: 700;
  transition: background 120ms ease, color 120ms ease;
}

.course-pill button:hover,
.tiny-remove:hover {
  background: var(--ink);
  color: #fff;
}

/* ---------- Panels ---------- */

.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(390px, 0.88fr);
  gap: 18px;
  align-items: start;
}

.panel {
  min-width: 0;
  padding: 18px;
}

.panel-header {
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

.panel-header.compact {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 2px dashed rgba(20, 18, 16, 0.35);
}

.schedule-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.schedule-actions .ghost-button {
  min-height: 36px;
  padding: 0 12px;
}

/* ---------- Course options ---------- */

.options-list {
  display: grid;
  gap: 22px;
}

.course-group {
  display: grid;
  gap: 12px;
}

.course-group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 0 9px;
  border-bottom: 3px solid var(--ink);
}

.course-group-title strong {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.group-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  border: 0;
  padding: 0;
  background: transparent;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.group-toggle:hover strong {
  color: var(--crimson);
}

.group-caret {
  display: inline-grid;
  flex: 0 0 auto;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 2px solid var(--ink);
  background: var(--signal);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1;
  box-shadow: 2px 2px 0 var(--ink);
}

.group-toggle[aria-expanded="false"] .group-caret {
  background: var(--card);
}

.section-card,
.generated-card {
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 14px;
  background: var(--card);
  box-shadow: var(--shadow-inner-card);
}

.section-card {
  position: relative;
  transition: transform 100ms ease, box-shadow 100ms ease;
}

.section-card.pinned {
  box-shadow: 4px 4px 0 var(--signal), 6px 6px 0 var(--ink);
}

.pin-flag {
  position: absolute;
  top: 10px;
  right: 10px;
  border: 2px solid var(--ink);
  padding: 2px 8px;
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: rotate(2deg);
  box-shadow: 2px 2px 0 var(--ink);
}

.section-card.pinned h3 {
  padding-right: 86px;
}

.pin-button.active {
  background: var(--signal);
  color: var(--ink);
}

.section-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--crimson);
}

.section-card.conflicting {
  border-color: var(--danger);
  background: var(--danger-soft);
  box-shadow: 3px 3px 0 var(--danger);
}

.section-card h3 {
  margin: 0 0 9px;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.3;
}

.meta-row {
  flex-wrap: wrap;
  gap: 6px;
  margin: 9px 0 11px;
}

.tiny-pill {
  min-height: 24px;
  border: 1.5px solid var(--ink);
  border-radius: 0;
  padding: 2px 8px;
  background: transparent;
  color: var(--ink);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.tiny-pill.campus-main {
  background: var(--ink);
  color: var(--card);
}

.tiny-pill.campus-city {
  background: var(--crimson);
  border-color: var(--crimson-deep);
  color: #fff;
}

.teacher-line {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
  margin: 0;
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 600;
}

.review-chip {
  min-height: 26px;
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 0 10px;
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--ink);
  transition: transform 90ms ease, box-shadow 90ms ease, background 120ms ease, color 120ms ease;
}

.review-chip:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--ink);
}

.review-chip[aria-expanded="true"] {
  background: var(--ink);
  color: #fff;
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 var(--ink);
}

/* ---------- Teacher review panel ---------- */

.teacher-review-panel {
  display: grid;
  gap: 10px;
  margin-top: 12px;
  padding: 12px;
  border: 2px solid var(--ink);
  background: var(--signal-soft);
}

.teacher-review-panel.no-review {
  background: var(--card-muted);
  border-style: dashed;
}

.teacher-review-panel[hidden] {
  display: none;
}

.teacher-review-heading {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
}

.teacher-review-heading strong {
  color: var(--ink);
}

.teacher-review-heading span,
.teacher-review-panel small {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.teacher-review-panel p,
.teacher-review-panel ul {
  margin: 0;
}

.teacher-review-panel p {
  color: var(--ink);
  font-size: 0.9rem;
  line-height: 1.55;
}

.teacher-review-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.teacher-review-metrics span {
  display: inline-grid;
  gap: 2px;
  min-width: 112px;
  padding: 8px 10px;
  border: 1.5px solid var(--ink);
  background: var(--card);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 600;
}

.teacher-review-metrics b {
  font-family: var(--font-mono);
  color: var(--ink-soft);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.teacher-review-panel ul {
  display: grid;
  gap: 5px;
  padding-left: 18px;
  color: var(--ink);
  font-size: 0.88rem;
}

/* Ticket perforation before actions */
.card-actions {
  justify-content: flex-end;
  margin-top: 12px;
  padding-top: 11px;
  border-top: 2px dashed rgba(20, 18, 16, 0.4);
}

.card-actions .secondary-button,
.card-actions .ghost-button {
  min-height: 36px;
  font-size: 0.74rem;
}

/* ---------- Departures timeline (time-proportional) ---------- */

.schedule-scroll {
  width: 100%;
  border: 2px solid var(--ink);
  background: var(--card);
}

.schedule-grid {
  display: grid;
  grid-template-columns: minmax(66px, 78px) repeat(6, minmax(0, 1fr));
}

.grid-cell {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  font-size: 0.74rem;
  text-align: center;
  overflow-wrap: anywhere;
}

.grid-head {
  background: var(--ink);
  color: var(--signal);
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.timeline-axis {
  position: relative;
  border-right: 1px solid rgba(20, 18, 16, 0.2);
  background: var(--card-muted);
}

.axis-label {
  position: absolute;
  right: 6px;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--ink);
  text-align: right;
  text-transform: uppercase;
  white-space: nowrap;
  line-height: 1.15;
}

.timeline-day {
  position: relative;
  border-right: 1px solid rgba(20, 18, 16, 0.14);
}

.timeline-day:last-child {
  border-right: 0;
}

.time-rule {
  position: absolute;
  left: 0;
  right: 0;
  border-top: 1px dashed rgba(20, 18, 16, 0.28);
}

.slot-block {
  position: absolute;
  overflow: hidden;
  border: 1.5px solid var(--ink);
  border-left: 4px solid var(--crimson);
  padding: 4px 5px;
  background: #fff;
  color: var(--ink);
  font-size: 0.63rem;
  font-weight: 700;
  line-height: 1.25;
  overflow-wrap: break-word;
  hyphens: auto;
  box-shadow: 2px 2px 0 rgba(20, 18, 16, 0.8);
}

.slot-block .slot-name {
  display: block;
}

/* lane-split blocks (clashes side by side) get a tighter type scale */
.slot-block.narrow {
  padding: 3px 4px;
  border-left-width: 3px;
  font-size: 0.6rem;
  line-height: 1.15;
}

.slot-block.narrow small {
  font-size: 0.5rem;
}

.slot-block small {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 0.56rem;
  font-weight: 700;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.slot-block.danger {
  border-color: var(--danger);
  border-left-color: var(--danger);
  background: var(--danger);
  color: #fff;
}

.slot-block.danger small {
  color: rgba(255, 255, 255, 0.85);
}

.conflict-box {
  margin-bottom: 12px;
  border: 2px solid var(--ink);
  padding: 10px 13px;
  background: var(--danger);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-inner-card);
}

.hidden {
  display: none;
}

/* ---------- Generated route options ---------- */

.generated-list {
  display: grid;
  gap: 14px;
}

.generated-card {
  display: grid;
  gap: 12px;
}

.generated-card.city-risk {
  border-color: var(--danger);
  box-shadow:
    inset 6px 0 0 var(--danger),
    var(--shadow-inner-card);
}

.generated-card strong {
  font-size: 0.98rem;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.generated-card ul {
  display: grid;
  gap: 5px;
  margin: 0;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.generated-card > .secondary-button {
  justify-self: end;
  min-height: 36px;
  font-size: 0.74rem;
}

.insight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.insight-column {
  border: 1.5px solid var(--ink);
  border-top: 5px solid var(--ink);
  padding: 10px;
  background: var(--card-muted);
}

.insight-column:first-child {
  border-top-color: var(--success);
}

.insight-column:last-child {
  border-top-color: var(--danger);
}

.insight-column strong {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  color: var(--ink);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.insight-column:first-child strong {
  color: var(--success);
}

.insight-column:last-child strong {
  color: var(--danger);
}

.insight-column ul {
  padding-left: 18px;
}

.city-warning {
  padding: 5px 7px;
  background: var(--danger);
  color: #fff;
  font-weight: 700;
}

.mvp-badge {
  min-height: 28px;
  border: 2px solid var(--ink);
  padding: 4px 10px;
  background: var(--ink);
  color: var(--signal);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  box-shadow: 2px 2px 0 rgba(20, 18, 16, 0.35);
}

.generated-actions {
  justify-content: space-between;
}

.generated-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.compare-toggle {
  min-height: 28px;
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 0 9px;
  background: var(--card);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 2px 2px 0 var(--ink);
  transition: transform 90ms ease, box-shadow 90ms ease, background 120ms ease;
}

.compare-toggle:hover:not(:disabled) {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--ink);
}

.compare-toggle.active {
  background: var(--signal);
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 var(--ink);
}

/* ---------- Compare modal ---------- */

.compare-panel {
  width: min(1280px, 100%);
}

.compare-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  align-items: start;
}

.compare-column {
  display: grid;
  gap: 10px;
  align-content: start;
  border: 2px solid var(--ink);
  padding: 12px;
  background: var(--card);
  box-shadow: var(--shadow-inner-card);
}

.compare-column-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.compare-column-head strong {
  font-size: 0.92rem;
  text-transform: uppercase;
}

.compare-grid-box .grid-cell {
  min-height: 30px;
  padding: 3px;
  font-size: 0.56rem;
}

.compare-grid-box .grid-head {
  font-size: 0.52rem;
  letter-spacing: 0.04em;
}

.compare-grid-box .axis-label {
  font-size: 0.48rem;
}

.compare-grid-box .slot-block {
  padding: 2px 3px;
  font-size: 0.52rem;
  border-left-width: 3px;
  box-shadow: none;
}

.compare-grid-box .slot-block small {
  font-size: 0.46rem;
}

.compare-insights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.compare-insights .insight-column {
  padding: 8px;
}

.compare-insights .insight-column ul {
  display: grid;
  gap: 4px;
  margin: 0;
  padding-left: 14px;
  color: var(--ink-soft);
  font-size: 0.76rem;
}

.compare-courses {
  display: grid;
  gap: 4px;
  margin: 0;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.compare-column > .secondary-button {
  justify-self: end;
  min-height: 34px;
  font-size: 0.72rem;
}

/* ---------- Empty states: rubber stamps ---------- */

.empty-state {
  display: grid;
  gap: 7px;
  padding: 42px 16px;
  border: 2px dashed var(--ink);
  background: transparent;
  color: var(--ink-soft);
  text-align: center;
  transform: rotate(-0.4deg);
}

.empty-state strong {
  font-family: var(--font-mono);
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.empty-state span {
  font-size: 0.88rem;
}

.empty-state.warning {
  border-color: var(--warning);
  background: var(--warning-soft);
}

.empty-state.warning strong {
  color: var(--warning);
}

.empty-state.error {
  border-color: var(--danger);
  background: var(--danger-soft);
}

.empty-state.error strong {
  color: var(--danger);
}

/* ---------- Modals ---------- */

.export-modal,
.preferences-modal,
.about-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(20, 18, 16, 0.72);
}

.preferences-modal.hidden,
.about-modal.hidden {
  display: none;
}

/* ---------- Onboarding: What is IBA Flow? ---------- */

.about-link {
  min-height: 32px;
  border: 0;
  border-bottom: 2px dashed rgba(255, 255, 255, 0.55);
  padding: 0 2px 3px;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 120ms ease, border-color 120ms ease;
}

.about-link:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.about-panel {
  display: grid;
  width: min(880px, 100%);
  max-height: min(860px, 94vh);
  overflow: auto;
  border: 3px solid var(--ink);
  background: var(--card);
  box-shadow: 10px 10px 0 var(--crimson);
}

.about-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 18px 16px;
  border-bottom: 2px solid var(--ink);
  background: var(--ink);
}

.about-header .label {
  color: var(--signal);
}

.about-header h2 {
  margin-top: 5px;
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  text-transform: uppercase;
  text-shadow: 2px 2px 0 var(--crimson);
}

.about-subtitle {
  margin: 7px 0 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.92rem;
  font-weight: 500;
}

.about-body {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.about-intro {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--ink);
}

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

.about-card {
  display: grid;
  gap: 7px;
  align-content: start;
  border: 2px solid var(--ink);
  padding: 12px;
  background: var(--card);
  box-shadow: var(--shadow-inner-card);
}

.about-card strong {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--crimson);
}

.about-card p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* Mini UI preview panels (pure CSS, no images) */

.mini-ui {
  display: grid;
  gap: 5px;
  min-height: 96px;
  align-content: start;
  margin-bottom: 4px;
  border: 1.5px solid var(--ink);
  padding: 8px;
  background: var(--card-muted);
}

.mini-input {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--ink);
  padding: 5px 7px;
  background: #fff;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
}

.mini-caret {
  width: 2px;
  height: 11px;
  margin-left: 3px;
  background: var(--crimson);
  animation: blink 1s steps(2, start) infinite;
}

.mini-suggestion {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 6px;
  border: 1.5px solid var(--ink);
  padding: 4px 7px;
  background: var(--crimson);
  color: #fff;
  font-size: 0.62rem;
  font-weight: 700;
}

.mini-suggestion.dim {
  background: #fff;
  color: var(--ink);
}

.mini-suggestion em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.52rem;
  opacity: 0.75;
}

.mini-week {
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}

.mini-day {
  height: 9px;
  background: var(--ink);
}

.mini-slot {
  height: 16px;
  border: 1px solid rgba(20, 18, 16, 0.25);
  background: #fff;
}

.mini-slot.on {
  border: 1.5px solid var(--ink);
  border-left: 3px solid var(--crimson);
  background: var(--crimson-soft);
}

.mini-slot.alt {
  border: 1.5px solid var(--ink);
  border-left: 3px solid var(--ink);
  background: var(--signal-soft);
}

.mini-badge {
  justify-self: start;
  border: 1.5px solid var(--ink);
  padding: 3px 7px;
  background: var(--ink);
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mini-pro,
.mini-con {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
}

.mini-pro {
  color: var(--success);
}

.mini-con {
  color: var(--danger);
}

.about-note {
  margin: 0;
  border: 2px solid var(--ink);
  border-left: 6px solid var(--signal);
  padding: 10px 12px;
  background: var(--signal-soft);
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--ink);
}

.about-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 18px;
  border-top: 2px dashed rgba(20, 18, 16, 0.4);
  background: var(--card-muted);
}

.about-sheet-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  text-decoration: none;
}

/* ---------- Features modal ---------- */

.features-panel {
  width: min(1080px, 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.features-grid .mini-ui {
  min-height: 88px;
}

/* mini snapshot: sync status */
.mini-status {
  align-content: center;
}

.mini-led-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  justify-self: start;
  border: 1.5px solid var(--ink);
  padding: 4px 9px;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.mini-led {
  width: 7px;
  height: 7px;
  background: var(--led);
  box-shadow: 0 0 6px var(--led);
}

.mini-source {
  font-family: var(--font-mono);
  font-size: 0.54rem;
  font-weight: 700;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* mini snapshot: section card */
.mini-section,
.mini-pin {
  position: relative;
  align-content: center;
  gap: 7px;
}

.mini-course-name {
  font-size: 0.74rem;
  font-weight: 700;
}

.mini-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.mini-pill {
  border: 1.5px solid var(--ink);
  padding: 2px 6px;
  background: #fff;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.52rem;
  font-weight: 700;
  text-transform: uppercase;
}

.mini-pill.dark {
  background: var(--ink);
  color: var(--card);
}

/* mini snapshot: teacher review */
.mini-review-snap {
  align-content: center;
  gap: 8px;
}

.mini-review-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.mini-review-row b {
  font-size: 0.72rem;
}

.mini-review-chip {
  border: 1.5px solid var(--ink);
  padding: 2px 8px;
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.52rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 1.5px 1.5px 0 var(--ink);
}

.mini-review-metrics {
  font-family: var(--font-mono);
  font-size: 0.54rem;
  font-weight: 700;
  color: var(--ink-soft);
  text-transform: uppercase;
}

/* mini snapshot: clash timeline */
.mini-clash {
  position: relative;
  min-height: 96px;
  background-image: linear-gradient(to bottom, rgba(20, 18, 16, 0.14) 0 1px, transparent 1px);
  background-size: 100% 28px;
}

.mini-clash-block {
  position: absolute;
  display: flex;
  align-items: flex-start;
  overflow: hidden;
  border: 1.5px solid var(--ink);
  padding: 3px 5px;
  background: var(--danger);
  color: #fff;
  font-size: 0.54rem;
  font-weight: 700;
  line-height: 1.2;
  box-shadow: 1.5px 1.5px 0 rgba(20, 18, 16, 0.8);
}

.mini-clash-block.left {
  top: 10px;
  bottom: 10px;
  left: 8%;
  width: 40%;
}

.mini-clash-block.right {
  top: 42px;
  bottom: 10px;
  right: 8%;
  width: 38%;
}

/* mini snapshot: pinned section */
.mini-pin-stamp {
  position: absolute;
  top: 8px;
  right: 8px;
  border: 2px solid var(--ink);
  padding: 2px 7px;
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.52rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: rotate(3deg);
  box-shadow: 1.5px 1.5px 0 var(--ink);
}

.mini-pin .mini-course-name {
  padding-right: 64px;
}

/* mini snapshot: compare */
.mini-compare {
  position: relative;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  align-content: center;
}

.mini-compare-col {
  display: grid;
  gap: 3px;
}

.mini-compare-col i {
  display: block;
  height: 13px;
  border: 1px solid var(--ink);
  border-left: 3px solid var(--crimson);
  background: #fff;
}

.mini-compare-col i.tall {
  height: 24px;
}

.mini-compare-vs {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 2px solid var(--ink);
  padding: 2px 6px;
  background: var(--ink);
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  transform: translate(-50%, -50%) rotate(-5deg);
  box-shadow: 2px 2px 0 rgba(20, 18, 16, 0.35);
}

/* mini snapshot: preference checks */
.mini-checks {
  align-content: center;
  gap: 5px;
}

.mini-check {
  justify-self: start;
  border: 1.5px solid var(--ink);
  padding: 2px 8px;
  background: #fff;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  font-weight: 700;
  text-transform: uppercase;
}

.mini-check.on {
  background: var(--signal-soft);
  color: var(--ink);
}

/* mini snapshot: export slip */
.mini-export {
  align-content: center;
  gap: 6px;
}

.mini-export-bar {
  justify-self: start;
  border: 1.5px solid var(--ink);
  padding: 3px 8px;
  background: var(--ink);
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 0.54rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.mini-export-slip {
  display: grid;
  gap: 2px;
  border: 1.5px solid var(--ink);
  border-left: 4px solid var(--crimson);
  padding: 5px 8px;
  background: #fff;
  font-family: var(--font-mono);
  font-size: 0.54rem;
  font-weight: 700;
  color: var(--ink-soft);
  text-transform: uppercase;
  box-shadow: 2px 2px 0 rgba(20, 18, 16, 0.8);
}

.mini-export-slip b {
  font-family: var(--font-body);
  font-size: 0.68rem;
  color: var(--ink);
  text-transform: none;
}

/* roadmap block in the features modal */
.roadmap {
  display: grid;
  gap: 8px;
  border: 2px dashed var(--ink);
  padding: 12px 14px;
  background: var(--card-muted);
}

.roadmap-intro {
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-soft);
}

.roadmap-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.roadmap-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1.5px solid var(--ink);
  padding: 4px 9px;
  background: var(--card);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* mini snapshot: calendar export */
.mini-cal {
  align-content: center;
  gap: 7px;
}

.mini-cal-row {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
  border: 1.5px solid var(--ink);
  padding: 4px 8px;
  background: #fff;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
}

.mini-cal-row b {
  padding: 2px 6px;
  background: var(--crimson);
  color: #fff;
  font-size: 0.54rem;
}

.mini-cal-chips {
  display: flex;
  gap: 5px;
}

.mini-cal-chips i {
  border: 1.5px solid var(--ink);
  padding: 2px 8px;
  background: var(--signal-soft);
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.54rem;
  font-weight: 700;
  text-transform: uppercase;
}

/* ---------- Coming soon modal ---------- */

.soon-panel {
  width: min(540px, 100%);
  overflow: hidden;
  border: 3px solid var(--ink);
  background: var(--card);
  box-shadow: 10px 10px 0 var(--crimson);
}

.soon-stripe {
  height: 16px;
  background: repeating-linear-gradient(
    -45deg,
    var(--signal) 0 16px,
    var(--ink) 16px 32px
  );
}

.soon-stripe:first-child {
  border-bottom: 2px solid var(--ink);
}

.soon-stripe:last-child {
  border-top: 2px solid var(--ink);
}

.soon-body {
  display: grid;
  gap: 13px;
  justify-items: center;
  padding: 30px 22px;
  text-align: center;
}

.soon-body h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  text-shadow: 2px 2px 0 var(--crimson-soft);
}

.soon-stamp {
  margin: 4px 0;
  border: 3px solid var(--crimson);
  padding: 8px 18px;
  background: rgba(141, 15, 31, 0.05);
  color: var(--crimson);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transform: rotate(-5deg);
}

.soon-copy {
  margin: 0;
  max-width: 360px;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.55;
}

.preferences-panel {
  display: grid;
  width: min(760px, 100%);
  max-height: min(820px, 92vh);
  overflow: auto;
  border: 3px solid var(--ink);
  background: var(--card);
  box-shadow: 10px 10px 0 var(--crimson);
}

.preferences-header,
.preferences-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
}

.preferences-header {
  border-bottom: 2px solid var(--ink);
  background: var(--ink);
}

.preferences-header .label {
  color: var(--signal);
}

.preferences-header h2 {
  color: #fff;
  text-transform: uppercase;
}

.preferences-footer {
  border-top: 2px dashed rgba(20, 18, 16, 0.4);
  background: var(--card-muted);
}

.preferences-body {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.preferences-body .secondary-button {
  justify-self: start;
}

.preferences-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.preference-checks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding-top: 2px;
}

.preference-checks label {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  border: 2px solid var(--ink);
  padding: 8px 11px;
  background: var(--card);
  color: var(--ink);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  transition: background 120ms ease, box-shadow 100ms ease, transform 100ms ease;
}

.preference-checks label:hover {
  transform: translate(-1px, -1px);
  box-shadow: 2px 2px 0 var(--ink);
}

.preference-checks label:has(input:checked) {
  background: var(--signal-soft);
  box-shadow: 2px 2px 0 var(--ink);
}

.preference-checks input[type="checkbox"] {
  position: absolute;
  left: 10px;
  top: 10px;
  z-index: 1;
  appearance: none;
  -webkit-appearance: none;
  width: 19px;
  height: 19px;
  min-height: 19px;
  margin: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  opacity: 0;
}

.checkmark {
  position: relative;
  display: inline-grid;
  flex: 0 0 auto;
  place-items: center;
  width: 19px;
  height: 19px;
  border: 2px solid var(--ink);
  border-radius: 0;
  background: #fff;
  transition: background 100ms ease;
}

.checkmark::after {
  width: 5px;
  height: 9px;
  border-right: 2.5px solid #fff;
  border-bottom: 2.5px solid #fff;
  transform: rotate(45deg) scale(0);
  transform-origin: center;
  content: "";
  transition: transform 100ms ease;
}

.preference-checks input[type="checkbox"]:checked + .checkmark {
  background: var(--crimson);
}

.preference-checks input[type="checkbox"]:checked + .checkmark::after {
  transform: rotate(45deg) scale(1);
}

.preference-checks input[type="checkbox"]:focus-visible + .checkmark {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- Export modal ---------- */

.export-modal-panel {
  display: grid;
  gap: 14px;
  width: min(1040px, 100%);
  max-height: min(860px, 92vh);
  overflow: auto;
  border: 3px solid var(--ink);
  padding: 16px;
  background: var(--card);
  box-shadow: 10px 10px 0 var(--crimson);
}

.export-modal-header,
.export-modal-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.export-modal-actions {
  justify-content: flex-start;
  flex-wrap: wrap;
}

.export-menu-wrap {
  position: relative;
}

.export-menu {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  z-index: 40;
  display: grid;
  min-width: 210px;
  border: 2px solid var(--ink);
  background: var(--card);
  box-shadow: 6px 6px 0 var(--ink);
}

.export-menu.hidden {
  display: none;
}

.export-menu-item {
  display: flex;
  align-items: center;
  min-height: 42px;
  border: 0;
  border-bottom: 1px dashed rgba(20, 18, 16, 0.3);
  padding: 0 14px;
  background: var(--card);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.export-menu-item:last-child {
  border-bottom: 0;
}

.export-menu-item:hover {
  background: var(--crimson);
  color: #fff;
}

.export-hint {
  margin: 0;
  border-top: 2px dashed rgba(20, 18, 16, 0.35);
  padding-top: 10px;
  color: var(--ink-soft);
  font-size: 0.78rem;
  line-height: 1.5;
}

.export-preview-image {
  width: 100%;
  height: auto;
  border: 2px solid var(--ink);
  background: #fff;
}

.export-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  text-decoration: none;
}

.export-modal-actions .primary-button,
.export-modal-actions .secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* ---------- Responsive ---------- */

@media (max-width: 1020px) {
  .main-grid {
    grid-template-columns: 1fr;
  }

  .app-header-inner,
  .selected-strip {
    align-items: stretch;
    flex-direction: column;
  }

  .app-header-inner {
    gap: 14px;
  }

  .sync-panel,
  .preference-row {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 14px 12px 36px;
  }

  .app-header-inner {
    gap: 12px;
    padding: 12px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  h1 {
    font-size: 1.35rem;
  }

  h2 {
    font-size: 0.98rem;
  }

  .sync-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .sync-panel .about-link {
    grid-column: 1 / -1;
    justify-self: center;
    min-height: 24px;
  }

  .app-header .status-pill {
    grid-column: 1 / -1;
    justify-content: center;
  }

  .source-link,
  .sync-panel .primary-button {
    justify-content: center;
    width: 100%;
  }

  .sync-panel .primary-button {
    min-height: 38px;
  }

  .ticker-track span {
    padding: 4px 0;
    font-size: 0.58rem;
  }

  .control-band,
  .selected-strip,
  .panel {
    padding: 13px;
  }

  .control-band,
  .selected-strip,
  .panel {
    box-shadow: 4px 4px 0 var(--ink);
  }

  .workspace {
    gap: 14px;
  }

  .search-row,
  .preference-row,
  .schedule-actions,
  .generated-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .generated-actions {
    align-items: flex-start;
    gap: 8px;
  }

  .schedule-actions .ghost-button {
    width: 100%;
  }

  .schedule-grid {
    grid-template-columns: minmax(52px, 58px) repeat(6, minmax(0, 1fr));
  }

  .grid-cell {
    min-height: 38px;
    padding: 3px;
    font-size: 0.6rem;
  }

  .grid-head {
    font-size: 0.54rem;
    letter-spacing: 0.04em;
  }

  .axis-label {
    font-size: 0.5rem;
    right: 3px;
  }

  .slot-block {
    padding: 3px 4px;
    font-size: 0.58rem;
    border-left-width: 3px;
    box-shadow: 1px 1px 0 rgba(20, 18, 16, 0.8);
  }

  .slot-block small {
    font-size: 0.5rem;
  }

  .panel-header {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

  .course-group-title {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .section-card {
    padding: 12px;
  }

  .meta-row {
    gap: 6px;
  }

  .tiny-pill {
    white-space: normal;
  }

  .card-actions .secondary-button,
  .card-actions .ghost-button {
    width: 100%;
  }

  .generated-card > .secondary-button {
    justify-self: stretch;
  }

  .insight-grid,
  .compare-insights {
    grid-template-columns: 1fr;
  }

  .compare-column > .secondary-button {
    justify-self: stretch;
  }

  .generated-tags {
    width: 100%;
    justify-content: space-between;
  }

  .export-modal,
  .preferences-modal,
  .about-modal {
    padding: 0;
  }

  .about-panel,
  .preferences-panel,
  .export-modal-panel {
    width: 100%;
    height: 100vh;
    height: 100dvh;
    max-height: none;
    border: 0;
    box-shadow: none;
  }

  .about-panel,
  .preferences-panel {
    grid-template-rows: auto 1fr auto;
  }

  .export-modal-header,
  .export-modal-actions,
  .preferences-footer,
  .about-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .about-header,
  .preferences-header {
    align-items: flex-start;
  }

  .about-header h2 {
    font-size: 1.18rem;
  }

  #closeAboutButton,
  #closePreferencesButton {
    flex: 0 0 auto;
    width: auto;
    min-height: 36px;
    padding: 0 12px;
    font-size: 0.72rem;
  }

  .about-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

  #soonModal {
    padding: 14px;
  }

  .header-tabs {
    gap: 5px;
    padding: 7px 12px;
  }

  .header-tab {
    flex: 0 0 auto;
  }

  .header-tab.tab-info + .header-tab.tab-feature {
    margin-left: 12px;
  }

  .about-footer .primary-button,
  .about-sheet-link {
    justify-content: center;
    width: 100%;
  }

  .export-modal-actions .primary-button,
  .export-modal-actions .secondary-button,
  .export-close,
  .preferences-footer .primary-button,
  .preferences-footer .ghost-button {
    justify-content: center;
    width: 100%;
  }

  .export-menu-wrap {
    width: 100%;
  }

  .export-menu {
    position: static;
    margin-top: 6px;
    box-shadow: 3px 3px 0 var(--ink);
  }

  .preferences-grid,
  .preference-checks {
    grid-template-columns: 1fr;
  }

  .preferences-body .secondary-button {
    justify-self: stretch;
  }
}

/* ---------- Print ---------- */

@media print {
  @page {
    size: landscape;
    margin: 10mm;
  }

  body > :not(.export-modal) {
    display: none !important;
  }

  body {
    background: #fff;
  }

  .export-modal {
    position: static;
    display: block;
    padding: 0;
    background: #fff;
  }

  .export-modal-panel {
    width: 100%;
    max-height: none;
    overflow: visible;
    border: 0;
    padding: 0;
    box-shadow: none;
  }

  .export-modal-header,
  .export-modal-actions {
    display: none;
  }

  .export-preview-image {
    border: 0;
  }
}