/* mlbooks.net — the engraved chart.
   A deep-indigo sea chart drawn in hairlines: pale plate ink, Caslon
   lettering, one vermilion route. Precision over costume: every rule is
   thin, every ornament earns its place. */

@font-face {
  font-family: "Libre Caslon Display";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/caslon-display.woff2") format("woff2");
}
@font-face {
  font-family: "Libre Caslon Text";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/caslon.woff2") format("woff2");
}
@font-face {
  font-family: "Libre Caslon Text";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/caslon-bold.woff2") format("woff2");
}
@font-face {
  font-family: "Libre Caslon Text";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/caslon-italic.woff2") format("woff2");
}
@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-weight: 500 600;
  font-display: swap;
  src: url("/assets/fonts/archivo-500.woff2") format("woff2");
}

:root {
  --sea: #142331;
  --sea-deep: #0e1926;
  --land: #1b2d3d;
  --ink: #ccd8e0;          /* plate ink: lines and primary text */
  --ink-soft: #8fa5b4;     /* secondary text, tinted from the sea hue */
  --ink-faint: rgba(204, 216, 224, 0.32);   /* graticule, hairlines */
  --ink-ghost: rgba(204, 216, 224, 0.14);   /* waterlines, idle course */
  --vermilion: #d94f30;        /* the route: lines, fills, large text */
  --vermilion-text: #ec6c4c;   /* small vermilion text (≥4.5:1 on sea) */
  --on-vermilion: #04090f;     /* label ink on vermilion fills (≥4.5:1) */
  --display: "Libre Caslon Display", "Libre Caslon Text", Georgia, serif;
  --serif: "Libre Caslon Text", Georgia, serif;
  --chart: "Archivo", "Helvetica Neue", Arial, sans-serif;  /* apparatus: timecodes, controls */
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(175deg, var(--sea) 0%, var(--sea-deep) 100%);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.6;
}

/* ---------- the plate: neatline frame and furniture ---------- */

.plate {
  position: relative;
  min-height: 100vh;
  margin: clamp(10px, 1.8vw, 22px);
  min-height: calc(100vh - 2 * clamp(10px, 1.8vw, 22px));
  border: 1px solid var(--ink-faint);
  outline: 1px solid var(--ink-ghost);
  outline-offset: 3px;
  display: flex;
  flex-direction: column;
}

.plate-furniture {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.7rem 1.1rem 0;
  font-family: var(--chart);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
  text-transform: uppercase;
}
.plate-furniture a { color: inherit; text-decoration: none; }
.plate-furniture a:hover { color: var(--ink); }

.imprint {
  margin-top: auto;
  padding: 1.1rem 1rem 0.9rem;
  text-align: center;
  font-style: italic;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.imprint a { color: var(--ink); }

/* ---------- the chart (landing) ---------- */

.chart-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  border-bottom: 1px solid var(--ink-ghost);
}

.chart {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* engraved line classes used inside the inline SVG */
.coast { fill: var(--land); stroke: var(--ink); stroke-width: 1.1; }
.waterline { fill: none; stroke: var(--ink); }
.graticule { stroke: var(--ink-ghost); stroke-width: 0.6; }
.tick { stroke: var(--ink-faint); stroke-width: 1; }
.city-dot { fill: var(--ink); }
.city-label {
  font-family: var(--chart);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  fill: var(--ink);
}
.region-label {
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.42em;
  fill: var(--ink-soft);
}
.ocean-label {
  font-family: var(--serif);
  font-style: italic;
  font-size: 24px;
  letter-spacing: 0.35em;
  fill: var(--ink-soft);
}
.rose line { stroke: var(--ink-faint); }
.rose .cardinal { stroke: var(--ink); stroke-width: 1; }
.rose text {
  font-family: var(--chart);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  fill: var(--ink-soft);
}
.scalebar rect.filled { fill: var(--ink); }
.scalebar rect.empty { fill: none; stroke: var(--ink); stroke-width: 0.8; }
.scalebar text {
  font-family: var(--chart);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  fill: var(--ink-soft);
}

.route {
  fill: none;
  stroke: var(--vermilion);
  stroke-width: 2;
  stroke-dasharray: 7 6;
  stroke-linecap: round;
}
.route-head { fill: var(--vermilion); }

/* the one authored moment: the route sails into place once on arrival */
@keyframes route-march { from { stroke-dashoffset: 156; } }
.chart .route {
  animation: route-march 2.2s cubic-bezier(0.22, 1, 0.36, 1) 0.2s backwards;
}
@keyframes route-end-fade { from { opacity: 0; } }
.chart .route-end {
  animation: route-end-fade 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.7s backwards;
}

/* ---------- cartouche ---------- */

.cartouche {
  position: absolute;
  right: clamp(1rem, 4vw, 4rem);
  bottom: clamp(1rem, 5vh, 3.2rem);
  width: min(24rem, calc(100% - 2rem));
  padding: 1.5rem 1.7rem 1.4rem;
  background: var(--sea);
  border: 1px solid var(--ink-faint);
  box-shadow:
    inset 0 0 0 4px var(--sea),
    inset 0 0 0 5px var(--ink-ghost),
    0 14px 34px rgba(4, 9, 15, 0.55);
  text-align: center;
}

.cartouche h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  font-size: 2rem;
  letter-spacing: 0.34em;
  text-indent: 0.34em;
}

.cartouche .fleuron {
  display: block;
  margin: 0.7rem auto 0.8rem;
  width: 8rem;
  height: 9px;
}
.cartouche .fleuron line { stroke: var(--ink-faint); }
.cartouche .fleuron circle { fill: var(--ink-soft); }

.cartouche .chart-title {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.65;
}
.cartouche .chart-title .small-line {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 0.35rem;
}

.cartouche .enter {
  display: inline-block;
  margin-top: 1.15rem;
  padding: 0.55rem 1.3rem 0.5rem;
  font-family: var(--chart);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--on-vermilion);
  background: var(--vermilion);
  border: 1px solid var(--vermilion);
  transition: background 0.25s cubic-bezier(0.22, 1, 0.36, 1), color 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}
.cartouche .enter:hover,
.cartouche .enter:focus-visible {
  background: transparent;
  color: var(--vermilion-text);
}
.cartouche .enter-sub {
  display: block;
  margin-top: 0.6rem;
  font-style: italic;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

/* ---------- the reading room (samples + gate) ---------- */

.room {
  width: min(44rem, 100%);
  margin: 0 auto;
  padding: clamp(1.6rem, 5vh, 3.5rem) clamp(1rem, 4vw, 1.6rem) 2.5rem;
}

.room-head { text-align: center; }
.room-head .over-rule {
  width: 4.5rem;
  border: none;
  border-top: 1px solid var(--ink-faint);
  margin: 0 auto 1.4rem;
}
.room-head h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.5rem, 4.5vw, 2.1rem);
  letter-spacing: 0.12em;
  line-height: 1.35;
}
.room-head .byline {
  margin: 0.7rem 0 0;
  font-style: italic;
  font-size: 0.95rem;
  color: var(--ink);
}
.room-head .volume-line {
  margin: 0.35rem 0 0;
  font-style: italic;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.standfirst {
  margin: 1.8rem auto 0;
  max-width: 34rem;
  font-size: 0.95rem;
  color: var(--ink);
}

.back-link {
  font-family: var(--chart);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
}
.back-link:hover { color: var(--ink); }
.back-link svg { vertical-align: -1px; margin-right: 0.3rem; }

/* ---------- stations (players) ---------- */

.stations { margin-top: 2.6rem; }

.station {
  border-top: 1px solid var(--ink-faint);
  padding: 1.6rem 0.2rem 1.9rem;
}
.station:last-of-type { border-bottom: 1px solid var(--ink-faint); }

.station-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.station-title {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.35rem;
  letter-spacing: 0.03em;
}
.station-title .no {
  color: var(--vermilion-text);
  font-size: 1rem;
  letter-spacing: 0.08em;
  margin-right: 0.5rem;
}
.station-note {
  margin: 0;
  font-style: italic;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.transport {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
}

.btn-play {
  flex: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border-radius: 50%;
  border: 1.5px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}
.btn-play:hover {
  border-color: var(--vermilion);
  color: var(--vermilion-text);
}
.btn-play[aria-pressed="true"] {
  border-color: var(--vermilion);
  background: var(--vermilion);
  color: var(--on-vermilion);
}
.btn-play svg { display: block; }
.btn-play .icon-pause { display: none; }
.btn-play[aria-pressed="true"] .icon-pause { display: block; }
.btn-play[aria-pressed="true"] .icon-play { display: none; }
.btn-play { position: relative; }
.btn-play[data-loading="true"] { border-color: transparent; }
.btn-play[data-loading="true"]::after {
  content: "";
  position: absolute;
  inset: -1.5px;
  border-radius: 50%;
  border: 1.5px dashed currentColor;
  animation: compass-spin 1.6s linear infinite;
}
@keyframes compass-spin { to { transform: rotate(360deg); } }

.course { flex: 1; min-width: 0; }

input.scrub {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 1.5rem;
  margin: 0;
  background: transparent;
  cursor: pointer;
}
/* the course line: a dashed pale route, sailed portion solid vermilion */
input.scrub::-webkit-slider-runnable-track {
  height: 2px;
  background:
    linear-gradient(90deg, var(--vermilion) var(--played, 0%), transparent var(--played, 0%)),
    repeating-linear-gradient(90deg, var(--ink-faint) 0 7px, transparent 7px 13px);
}
input.scrub::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  margin-top: -6.5px;
  border-radius: 50%;
  border: 2px solid var(--vermilion);
  background: var(--sea);
  box-shadow: 0 1px 4px rgba(4, 9, 15, 0.6);
}
input.scrub::-moz-range-track {
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--ink-faint) 0 7px, transparent 7px 13px);
}
input.scrub::-moz-range-progress {
  height: 2px;
  background: var(--vermilion);
}
input.scrub::-moz-range-thumb {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid var(--vermilion);
  background: var(--sea);
  box-shadow: 0 1px 4px rgba(4, 9, 15, 0.6);
}

.timecode {
  flex: none;
  min-width: 9ch;
  text-align: right;
  font-family: var(--chart);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

/* speed control, drawn like a map scale bar */
.under-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.9rem;
  padding-left: calc(46px + 1rem);
  flex-wrap: wrap;
}
.speed-scale {
  display: flex;
  align-items: stretch;
}
.speed-scale .speed-cap {
  font-family: var(--chart);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
  align-self: center;
  margin-right: 0.7rem;
  text-transform: uppercase;
}
.btn-speed {
  font-family: var(--chart);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink-faint);
  border-left-width: 0;
  padding: 0.28rem 0.55rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.btn-speed:first-of-type { border-left-width: 1px; }
.btn-speed:hover { color: var(--vermilion-text); border-color: var(--ink-soft); }
.btn-speed[aria-pressed="true"] {
  background: var(--vermilion);
  border-color: var(--vermilion);
  color: var(--on-vermilion);
}

.resume-note {
  margin: 0;
  font-style: italic;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.station-error {
  display: none;
  margin: 0.9rem 0 0;
  padding-left: calc(46px + 1rem);
  font-style: italic;
  font-size: 0.88rem;
  color: var(--vermilion-text);
}
.station-error[data-show="true"] { display: block; }

.corrections {
  margin: 2.4rem auto 0;
  max-width: 30rem;
  text-align: center;
  font-style: italic;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.corrections a { color: var(--ink); }

/* ---------- the gate ---------- */

.gate-room {
  position: relative;
  flex: 1;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}
.gate-chart {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.gate-panel {
  position: relative;
  width: min(23rem, 100%);
  text-align: center;
  padding: 2.2rem 1.8rem 2rem;
  background: var(--sea);
  border: 1px solid var(--ink-faint);
  box-shadow: inset 0 0 0 4px var(--sea), inset 0 0 0 5px var(--ink-ghost);
}
.gate-panel h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.45rem;
  letter-spacing: 0.14em;
}
.gate-panel .gate-copy {
  margin: 0.9rem auto 1.6rem;
  max-width: 18rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.gate-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
}
.gate-label {
  margin-bottom: -0.45rem;
  font-family: var(--chart);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.gate-input {
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  text-align: center;
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--ink-soft);
  padding: 0.35rem 0.5rem;
  width: min(14rem, 100%);
}
.gate-input:focus { outline: none; border-bottom-color: var(--vermilion); }
.btn-enter {
  font-family: var(--chart);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--on-vermilion);
  background: var(--vermilion);
  border: 1px solid var(--vermilion);
  padding: 0.6rem 1.9rem 0.55rem;
  cursor: pointer;
  transition: background 0.25s, color 0.25s;
}
.btn-enter:hover { background: transparent; color: var(--vermilion-text); }
.gate-error {
  display: none;
  margin: 1.3rem 0 0;
  font-style: italic;
  font-size: 0.9rem;
  color: var(--vermilion-text);
}
.gate-panel[data-state="denied"] .gate-error { display: block; }

/* ---------- shared ---------- */

::selection { background: var(--vermilion); color: var(--on-vermilion); }
a { text-underline-offset: 3px; text-decoration-thickness: 1px; }
input { caret-color: var(--vermilion); }

:is(a, button, input, [tabindex]):focus-visible {
  outline: 2px solid var(--vermilion-text);
  outline-offset: 3px;
}

/* ---------- small screens ---------- */

@media (max-width: 760px) {
  .chart-stage { display: flex; flex-direction: column; }
  .chart { position: static; height: auto; }
  .cartouche {
    position: static;
    width: auto;
    margin: 0.4rem 1rem 1.2rem;
    order: 2;
  }
  .chart .city-label,
  .chart .region-label,
  .chart .ocean-label,
  .chart .scalebar { display: none; }
  .transport { flex-wrap: wrap; }
  .course { order: 3; flex-basis: 100%; }
  .timecode { text-align: left; }
  .under-row { padding-left: 0; }
  .station-error { padding-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .chart .route, .chart .route-end { animation: none; }
  .btn-play[data-loading="true"],
  .btn-play[data-loading="true"]::after { animation: none; }
  .cartouche .enter, .btn-play, .btn-speed, .btn-enter { transition: none; }
}