/* ---------- Fonts ---------- */
@font-face {
  font-family: "Plex Mono";
  src: url("assets/ibm-plex-mono.ttf") format("truetype");
  font-weight: 400 700;
  font-display: swap;
}
@font-face {
  font-family: "DM Serif Display";
  src: url("assets/dm-serif.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Work Sans";
  src: url("assets/work-sans.ttf") format("truetype");
  font-weight: 100 900;
  font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  --ink: #f4ead2;
  --ink-dim: #b8ad93;
  --board-bg: #16151a;
  --board-bg-raised: #201f26;
  --board-cell: #1b1a20;
  --board-line: #37353e;
  --amber: #ffb703;
  --amber-soft: #7a5a10;
  --line-culture: #b98cf2;
  --line-food: #ff9d52;
  --line-movement: #5ec8f2;
  --line-people: #6fd894;
  --line-places: #ff6f8e;
  --focus-ring: #7fe0ff;
  --radius: 10px;
  --font-display: "DM Serif Display", Georgia, serif;
  --font-mono: "Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --font-body: "Work Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- Reset ---------- */
* {
  box-sizing: border-box;
}
html {
  color-scheme: dark;
}
body {
  margin: 0;
  background: var(--board-bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
}
body {
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255, 183, 3, 0.05) 1px, transparent 0);
  background-size: 22px 22px;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font: inherit;
  color: inherit;
}
h1, h2, h3, p, dl, dd {
  margin: 0;
}
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.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;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--amber);
  color: #1a1200;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  z-index: 100;
  transition: top 150ms ease;
}
.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Layout shell ---------- */
.terminal {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

/* ---------- Masthead ---------- */
.masthead {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 3px double var(--board-line);
}
.masthead__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
}
.masthead__eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--ink-dim);
  margin-bottom: 0.6rem;
}
.flap-title {
  display: flex;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  letter-spacing: 0.05em;
  line-height: 1;
}
.flap-title-letters {
  display: contents;
}
.flap-char {
  position: relative;
  display: inline-block;
  width: 0.95ch;
  height: 1.1em;
  perspective: 220px;
}
.flap-char-inner {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--board-cell) 0%, #0f0e12 100%);
  color: var(--amber);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 1px rgba(255, 183, 3, 0.15), 0 2px 0 rgba(0, 0, 0, 0.4);
  transform-style: preserve-3d;
  will-change: transform;
}
.flap-char-inner::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: rgba(0, 0, 0, 0.55);
}
.flap-char.is-flipping .flap-char-inner {
  animation: flip-card 340ms cubic-bezier(0.5, 0, 0.5, 1);
}
@keyframes flip-card {
  0% { transform: rotateX(0deg); }
  48% { transform: rotateX(-90deg); }
  52% { transform: rotateX(-90deg); }
  100% { transform: rotateX(0deg); }
}

.masthead__clock {
  font-family: var(--font-mono);
  text-align: right;
  border: 1px solid var(--board-line);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  background: var(--board-bg-raised);
}
.masthead__clock-label {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.masthead__clock-value {
  display: block;
  color: var(--line-people);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-top: 0.15rem;
}

/* ---------- Concourse (controls) ---------- */
.concourse {
  padding: 1.5rem 0;
}
.concourse__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr auto auto;
  gap: 1rem;
  align-items: end;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}
.field__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.field__control {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.65rem 0.8rem;
  background: var(--board-bg-raised);
  border: 1px solid var(--board-line);
  border-radius: 8px;
  color: var(--ink);
}
.field__control--select {
  background-color: var(--board-bg-raised);
  color: var(--ink);
}
.field__control::placeholder {
  color: var(--ink-dim);
}
.field__control:hover {
  border-color: var(--amber-soft);
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--board-line);
  background: var(--board-bg-raised);
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}
.toggle:hover {
  border-color: var(--amber);
}
.toggle[aria-pressed="true"] {
  background: var(--amber);
  color: #1a1200;
  border-color: var(--amber);
}
.toggle__icon {
  font-size: 0.9rem;
}

.board-count {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-dim);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.board-count__flap {
  display: inline-flex;
  gap: 2px;
}

/* ---------- Board ---------- */
.board {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--board-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--board-bg-raised);
}
.board__head {
  display: grid;
  grid-template-columns: 130px 1fr 130px 110px 160px 110px;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border-bottom: 1px solid var(--board-line);
}
.board__body {
  display: flex;
  flex-direction: column;
}

.item {
  display: grid;
  grid-template-columns: 130px 1fr 130px 110px 160px 110px;
  gap: 0.75rem;
  align-items: center;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--board-line);
}
.item:last-child {
  border-bottom: none;
}
.item:hover {
  background: rgba(255, 183, 3, 0.05);
}

.line-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  width: fit-content;
}
.line-chip::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: currentColor;
}
.line-chip--culture { color: var(--line-culture); background: rgba(185, 140, 242, 0.12); }
.line-chip--food { color: var(--line-food); background: rgba(255, 157, 82, 0.12); }
.line-chip--movement { color: var(--line-movement); background: rgba(94, 200, 242, 0.12); }
.line-chip--people { color: var(--line-people); background: rgba(111, 216, 148, 0.12); }
.line-chip--places { color: var(--line-places); background: rgba(255, 111, 142, 0.12); }

.item__destination {
  min-width: 0;
}
.item__open {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 0.2rem 0;
  cursor: pointer;
  touch-action: manipulation;
  color: var(--ink);
}
.item__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.25;
  margin: 0 0 0.15rem;
  text-wrap: balance;
}
.item__open:hover .item__title {
  color: var(--amber);
  text-decoration: underline;
  text-decoration-color: var(--amber-soft);
}
.item__summary {
  font-size: 0.85rem;
  color: var(--ink-dim);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.item__departs,
.item__duration,
.item__byline {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-dim);
  font-variant-numeric: tabular-nums;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item__action {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-dim);
  text-align: right;
  white-space: nowrap;
}
.item__saved-mark {
  color: var(--amber);
  margin-right: 0.15rem;
}

/* ---------- Empty state ---------- */
.empty-state {
  text-align: center;
  padding: 3.5rem 1.5rem;
  border: 1px dashed var(--board-line);
  border-radius: var(--radius);
  margin-top: 1.5rem;
}
.empty-state__headline {
  font-family: var(--font-mono);
  letter-spacing: 0.15em;
  color: var(--line-places);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}
.empty-state__body {
  color: var(--ink-dim);
  margin-bottom: 1.25rem;
}
.empty-state__reset {
  font-family: var(--font-mono);
  padding: 0.6rem 1.1rem;
  border-radius: 8px;
  border: 1px solid var(--amber);
  background: transparent;
  color: var(--amber);
  cursor: pointer;
  touch-action: manipulation;
}
.empty-state__reset:hover {
  background: var(--amber);
  color: #1a1200;
}

/* ---------- Footer ---------- */
.platform-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--board-line);
  font-size: 0.78rem;
  color: var(--ink-dim);
  font-family: var(--font-mono);
}

/* ---------- Dialog (ticket) ---------- */
.ticket {
  border: none;
  padding: 0;
  border-radius: 16px;
  color: var(--ink);
  background: var(--board-bg-raised);
  width: min(720px, calc(100vw - 2rem));
  max-height: min(860px, calc(100vh - 2rem));
  overflow-y: auto;
  overscroll-behavior: contain;
}
.ticket::backdrop {
  background: rgba(5, 4, 2, 0.7);
}
.ticket:not([open]) {
  display: none;
}

.ticket__close-form {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: flex-end;
  padding: 0.75rem 0.75rem 0;
  z-index: 2;
}
.ticket__close {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid var(--board-line);
  background: var(--board-bg);
  color: var(--ink);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  touch-action: manipulation;
}
.ticket__close:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.ticket__inner {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 0;
  padding: 0 1.75rem 1.75rem;
}
.ticket__stub {
  border-right: 2px dashed var(--board-line);
  padding-right: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
}
.ticket__stub-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.ticket__serial {
  font-family: var(--font-mono);
  color: var(--amber);
  font-size: 1.1rem;
  font-variant-numeric: tabular-nums;
}
.ticket__line-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
}

.ticket__main {
  padding-left: 1.5rem;
  min-width: 0;
}
.ticket__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.2;
  text-wrap: balance;
  margin-bottom: 0.6rem;
}
.ticket__summary {
  color: var(--ink-dim);
  font-size: 1rem;
  margin-bottom: 1.1rem;
}

.ticket__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 0.9rem 0;
  border-top: 1px solid var(--board-line);
  border-bottom: 1px solid var(--board-line);
  margin-bottom: 1.25rem;
}
.ticket__meta-item dt {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 0.2rem;
}
.ticket__meta-item dd {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  margin: 0;
}

.ticket__body {
  font-size: 1.02rem;
  line-height: 1.7;
  max-width: 62ch;
}
.ticket__body p {
  margin: 0 0 1.1em;
}
.ticket__body p:last-child {
  margin-bottom: 0;
}

.board-toggle {
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  border: 1px solid var(--amber);
  background: transparent;
  color: var(--amber);
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color 150ms ease, color 150ms ease;
}
.board-toggle:hover {
  background: var(--amber);
  color: #1a1200;
}
.board-toggle[aria-pressed="true"] {
  background: var(--amber);
  color: #1a1200;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .flap-char.is-flipping .flap-char-inner {
    animation: none;
  }
  .skip-link {
    transition: none;
  }
  * {
    scroll-behavior: auto !important;
  }
}

/* ---------- Responsive: mobile ---------- */
@media (max-width: 760px) {
  .terminal {
    padding: 0 1rem 2.5rem;
  }
  .masthead {
    padding: 1.5rem 0 1rem;
  }
  .masthead__clock {
    display: none;
  }
  .concourse__inner {
    grid-template-columns: 1fr;
  }
  .board-count {
    justify-content: space-between;
  }

  .board__head {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  .item {
    grid-template-columns: 1fr;
    gap: 0.4rem;
    padding: 1rem;
  }
  .item__action {
    text-align: left;
  }
  .item__departs,
  .item__duration,
  .item__byline {
    white-space: normal;
  }
  .item__departs::before { content: "Departs "; color: var(--ink-dim); }
  .item__duration::before { content: "Duration "; color: var(--ink-dim); }
  .item__byline::before { content: "Byline "; color: var(--ink-dim); }
  .item__action::before { content: "Status "; }

  .ticket {
    width: 100vw;
    max-height: 100vh;
    height: 100vh;
    border-radius: 0;
  }
  .ticket__inner {
    grid-template-columns: 1fr;
    padding: 0 1.25rem 1.5rem;
  }
  .ticket__stub {
    border-right: none;
    border-bottom: 2px dashed var(--board-line);
    padding-right: 0;
    padding-bottom: 1rem;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .ticket__main {
    padding-left: 0;
    padding-top: 1.25rem;
  }
}