/* Sail Tracker — dark UI, phone first.
   The poster itself is drawn on canvas; this styles the shell around it.
   Colour roles match the poster's tokens so the two read as one thing. */

:root {
  --surface: #000000;
  --plane: #0d0d0d;
  --raised: #17171a;
  --hairline: #2c2c2a;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --ink-muted: #898781;
  --accent: #3987e5;
  --accent-ink: #cde2fb;
  --warn: #fab219;
  --danger: #d03b3b;
  --radius: 12px;
  --tap: 48px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior-y: contain;
}

body {
  padding:
    env(safe-area-inset-top) env(safe-area-inset-right)
    env(safe-area-inset-bottom) env(safe-area-inset-left);
}

/* ------------------------------------------------------------------ topbar */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  background: var(--surface);
  z-index: 5;
}

.topbar h1 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.tabs { display: flex; gap: 4px; }

.tab {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: none;
  color: var(--ink-muted);
  font: inherit;
  font-size: 0.9375rem;
  cursor: pointer;
}

.tab.is-active {
  color: var(--ink);
  background: var(--raised);
  border-color: var(--hairline);
}

/* ------------------------------------------------------------------ banner */

.banner {
  margin: 12px 16px 0;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--hairline);
  background: var(--raised);
  font-size: 0.9375rem;
  color: var(--ink-2);
}

.banner[data-tone="warn"] { border-color: color-mix(in srgb, var(--warn) 45%, var(--hairline)); }
.banner[data-tone="error"] { border-color: color-mix(in srgb, var(--danger) 55%, var(--hairline)); }

.banner strong { color: var(--ink); font-weight: 600; }

.banner .banner-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

/* -------------------------------------------------------------------- views */

main { padding: 0 16px 40px; }

.view { padding-top: 12px; }

.canvas-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  max-height: 68vh;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

@media (min-width: 700px) {
  .canvas-wrap { aspect-ratio: 16 / 10; max-height: none; }
  main { max-width: 1100px; margin: 0 auto; }
}

.canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* -------------------------------------------------------------------- chips */

/* Two up on a phone: at four across, "Stationary" and "Under way" clip. */
.chips {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin: 12px 0 0;
}

@media (min-width: 560px) {
  .chips { grid-template-columns: repeat(4, 1fr); }
}

.chip {
  padding: 8px 10px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--plane);
  min-width: 0;
}

.chip dt {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}

.chip dd {
  margin: 2px 0 0;
  font-size: 0.9375rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chip dd[data-tone="live"] { color: var(--accent-ink); }
.chip dd[data-tone="warn"] { color: var(--warn); }

/* ------------------------------------------------------------------ actions */

.actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.actions-end { margin-top: 24px; }

.btn {
  flex: 1 1 auto;
  min-height: var(--tap);
  padding: 0 18px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--raised);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: default; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #05131f;
}

.btn-primary[data-mode="stop"] {
  background: var(--danger);
  border-color: var(--danger);
  color: #ffffff;
}

.btn-quiet {
  background: none;
  color: var(--ink-muted);
  font-weight: 500;
  flex: 0 0 auto;
}

.btn-sm {
  min-height: 36px;
  font-size: 0.875rem;
  flex: 0 0 auto;
  padding: 0 12px;
}

/* ------------------------------------------------------------------- fields */

.field { display: block; margin-top: 16px; }

.field span {
  display: block;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  min-height: var(--tap);
  padding: 0 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--plane);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
}

.field input:focus-visible,
.btn:focus-visible,
.tab:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------- png output */

#png-out { margin: 16px 0 0; }

#png-out img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
}

#png-out figcaption {
  margin-top: 8px;
  font-size: 0.875rem;
  color: var(--ink-muted);
}

/* -------------------------------------------------------------------- notes */

.note {
  margin: 16px 0 0;
  font-size: 0.875rem;
  color: var(--ink-muted);
}

.detail {
  margin-top: 20px;
  border-top: 1px solid var(--hairline);
  padding-top: 12px;
}

.detail summary {
  cursor: pointer;
  font-size: 0.9375rem;
  color: var(--ink-2);
}

.report {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 16px;
  margin: 12px 0 0;
  font-size: 0.875rem;
}

.report dt { color: var(--ink-muted); }
.report dd { margin: 0; font-variant-numeric: tabular-nums; text-align: right; }

/* --------------------------------------------------------------- trip list */

.trip-list { list-style: none; margin: 0; padding: 0; }

.trip-list li { border-bottom: 1px solid var(--hairline); }

.trip-row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 64px;
  padding: 12px 4px;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.trip-row .trip-main { flex: 1 1 auto; min-width: 0; }

.trip-row .trip-name {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.trip-row .trip-name span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.trip-row .trip-meta {
  font-size: 0.8125rem;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.trip-row .chevron { color: var(--ink-muted); flex: 0 0 auto; }

.badge {
  flex: 0 0 auto;
  font-style: normal; /* it is an <em> for emphasis semantics, not for italics */
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-ink);
  border: 1px solid color-mix(in srgb, var(--accent) 50%, var(--hairline));
  border-radius: 999px;
  padding: 1px 8px;
}

.empty {
  color: var(--ink-muted);
  font-size: 0.9375rem;
  padding: 24px 0;
}

@media (prefers-reduced-motion: reduce) {
  .btn:active { transform: none; }
}