/* Cargo Captain — base: design tokens, reset, typography, layout, buttons.
   Tablet first (1024×768 and 768×1024), fine on laptops, still usable at 390 px wide. */

:root {
  /* Sea blues */
  --sea-50: #eef8fc;
  --sea-100: #d6eef8;
  --sea-200: #b3e0f1;
  --sea-300: #8fcfe8;
  --sea-400: #5fb3d9;
  --sea-500: #2f8fc1;
  --sea-600: #1f6f9e;
  --sea-700: #17577d;
  --sea-800: #12445f;
  --sea-900: #0d3047;

  /* Sand */
  --sand-50: #fdf8ee;
  --sand-100: #f8eed8;
  --sand-200: #f1e2b4;
  --sand-400: #d9c08f;
  --sand-600: #a8875a;

  /* Island greens */
  --green-100: #e3f3da;
  --green-300: #a3d48c;
  --green-500: #5fa35a;
  --green-700: #2f6b2c;

  /* Warm accent (calls to action, upgrades ★) */
  --accent-100: #fff1d9;
  --accent-200: #ffdca3;
  --accent-400: #f8b552;
  --accent-500: #f59e2b;
  --accent-600: #d97a0c;
  --accent-700: #a65a05;

  /* Text and surfaces */
  --ink: #1d2b36;
  --ink-soft: #46596a;
  --ink-faint: #5a6b7b; /* muted text: ≥ 4.5:1 on white, paper, sand, sea-50/100 and the chip backgrounds */
  --paper: #fffdf8;
  --card: #ffffff;
  --line: #d9e3ea;
  --line-strong: #b8c7d3;

  /* Money: gains green, losses a calm slate (never red) */
  --gain: #2e7d4f;
  --gain-bg: #e4f4ea;
  --loss: #5b6b7a;
  --loss-bg: #eef1f4;

  /* Stops ①②③ (same as STOP_STYLES in src/data/text.js) */
  --stop-1: #1f77b4;
  --stop-2: #d62728;
  --stop-3: #2ca02c;

  /* Cold cargo */
  --cold: #3a8fd6;
  --cold-bg: #e3f1fd;
  --plug: #f5c542;

  /* Focus ring */
  --focus: #ffb000;
  --focus-dark: #1d2b36;

  /* Spacing scale */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --gutter: 24px;

  /* Radius */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  /* Shadows */
  --shadow-1: 0 1px 2px rgba(13, 48, 71, 0.08), 0 1px 1px rgba(13, 48, 71, 0.04);
  --shadow-2: 0 4px 12px rgba(13, 48, 71, 0.1), 0 1px 3px rgba(13, 48, 71, 0.06);
  --shadow-3: 0 12px 32px rgba(13, 48, 71, 0.18), 0 3px 8px rgba(13, 48, 71, 0.08);
  --shadow-press: 0 4px 0 rgba(13, 48, 71, 0.18);

  /* Type scale (18 px base) */
  --font: 'Nunito', ui-rounded, 'SF Pro Rounded', 'Segoe UI', system-ui, -apple-system, Roboto, 'Helvetica Neue', Arial, sans-serif;
  --fs-xs: 0.8125rem; /* ~14.6px — use sparingly */
  --fs-sm: 0.889rem; /* 16px */
  --fs-base: 1rem; /* 18px */
  --fs-md: 1.111rem; /* 20px */
  --fs-lg: 1.333rem; /* 24px */
  --fs-xl: 1.667rem; /* 30px */
  --fs-2xl: 2.111rem; /* 38px */
  --fs-3xl: 2.889rem; /* 52px */
  --lh: 1.45;

  /* Touch targets */
  --tap: 48px;
  --tap-lg: 60px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur-1: 120ms;
  --dur-2: 220ms;
  --dur-3: 400ms;

  color-scheme: light;
}

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

html {
  font-size: 112.5%; /* 18px base */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font);
  font-size: var(--fs-base);
  line-height: var(--lh);
  color: var(--ink);
  background-color: var(--sea-50);
  background-image:
    radial-gradient(1200px 500px at 15% -10%, #ffffff 0%, rgba(255, 255, 255, 0) 60%),
    linear-gradient(180deg, var(--sea-100) 0%, var(--sea-50) 40%, var(--sand-50) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: var(--fs-2xl); }
h2 { font-size: var(--fs-xl); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p + p {
  margin-top: var(--sp-2);
}

ul,
ol {
  padding-left: 1.2em;
}

img,
svg {
  max-width: 100%;
}

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

a {
  color: var(--sea-600);
  font-weight: 700;
}

strong,
b {
  font-weight: 800;
}

/* Numbers line up in tables and receipts */
.num,
.money {
  font-variant-numeric: tabular-nums;
}

/* ── Focus ─────────────────────────────────────────────── */
:focus {
  outline: none;
}

:focus-visible {
  outline: 4px solid var(--focus);
  outline-offset: 3px;
  box-shadow: 0 0 0 2px var(--focus-dark);
  border-radius: var(--r-sm);
}

/* Headings get focus (tabindex=-1) on screen changes for screen readers: no ring for those */
[tabindex='-1']:focus,
[tabindex='-1']:focus-visible {
  outline: none;
  box-shadow: none;
}

/* SVG focus (map ports) uses the same colors */
svg :focus-visible {
  outline: none;
  box-shadow: none;
}

.visually-hidden {
  position: absolute !important;
  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: var(--sp-3);
  top: -100px;
  z-index: 100;
  padding: var(--sp-2) var(--sp-4);
  background: var(--card);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-2);
}

.skip-link:focus {
  top: var(--sp-3);
}

/* ── App layout ────────────────────────────────────────── */
#app {
  min-height: 100vh;
  min-height: 100dvh;
}

.app {
  max-width: 1240px;
  margin: 0 auto;
  padding: var(--sp-4) var(--gutter) var(--sp-7);
}

.screen {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  animation: screen-in var(--dur-3) var(--ease) both;
}

@keyframes screen-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.screen__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}

.screen__title {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.screen__footer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: space-between;
  align-items: center;
}

/* Two columns on wide screens (e.g. map + board), one column on narrow ones */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: var(--sp-5);
  align-items: start;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.stack--sm {
  gap: var(--sp-2);
}

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
}

.row--end {
  justify-content: flex-end;
}

.row--between {
  justify-content: space-between;
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  gap: var(--sp-4);
}

.muted {
  color: var(--ink-soft);
}

.small {
  font-size: var(--fs-sm);
}

.center {
  text-align: center;
}

/* ── Panels and cards ──────────────────────────────────── */
.panel {
  background: var(--card);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
  padding: var(--sp-5);
  border: 1px solid rgba(13, 48, 71, 0.06);
}

.panel--sand {
  background: var(--sand-50);
}

.panel--sea {
  background: var(--sea-50);
}

.panel__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-3);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  min-width: 0;
  overflow-wrap: anywhere; /* "WWWWWWWWWWWWWWWW's hold" wraps instead of pushing the page sideways */
}

/* ── Buttons (≥ 48 px, round, bold) ────────────────────── */
.btn {
  --btn-bg: var(--accent-500);
  --btn-fg: var(--ink);
  --btn-border: var(--accent-600);
  --btn-shadow: var(--accent-700);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  min-height: var(--tap);
  min-width: var(--tap);
  padding: 0.5em 1.25em;
  border: 2px solid var(--btn-border);
  border-radius: var(--r-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-weight: 800;
  font-size: var(--fs-base);
  line-height: 1.15;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--btn-shadow);
  transform: translateY(0);
  transition: transform var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease), background-color var(--dur-2) var(--ease);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.btn:hover {
  filter: brightness(1.04);
}

.btn:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 var(--btn-shadow);
}

.btn:focus-visible {
  border-radius: var(--r-pill);
}

.btn--secondary {
  --btn-bg: var(--card);
  --btn-fg: var(--sea-700);
  --btn-border: var(--sea-400);
  --btn-shadow: var(--sea-300);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--sea-700);
  --btn-border: transparent;
  --btn-shadow: transparent;
}

.btn--ghost:hover {
  background: rgba(31, 111, 158, 0.08);
}

.btn--quiet {
  --btn-bg: var(--sea-50);
  --btn-fg: var(--ink-soft);
  --btn-border: var(--line);
  --btn-shadow: var(--line);
}

.btn--sm {
  min-height: 44px;
  padding: 0.35em 1em;
  font-size: var(--fs-sm);
}

.btn--lg {
  min-height: var(--tap-lg);
  padding: 0.6em 1.6em;
  font-size: var(--fs-md);
}

.btn--block {
  display: flex;
  width: 100%;
}

.btn--icon {
  padding: 0;
  width: var(--tap);
  border-radius: 50%;
}

.btn__emoji {
  font-size: 1.15em;
  line-height: 1;
}

.btn:disabled,
.btn[aria-disabled='true'] {
  cursor: not-allowed;
  filter: grayscale(0.6);
  opacity: 0.6;
  transform: none;
  box-shadow: 0 2px 0 var(--btn-shadow);
}

/* Keep the dark inner ring on buttons (their own 3-D shadow would otherwise replace it): the
   amber halo alone is too faint on white and on orange buttons. After the rules above, so it wins. */
.btn:focus-visible,
.btn[aria-disabled='true']:focus-visible {
  box-shadow: 0 4px 0 var(--btn-shadow), 0 0 0 2px var(--focus-dark);
}

/* Card-like buttons with their own shadow (speeds, answers, boxes) keep the dark ring too. */
.speed-card:focus-visible,
.speed-card.is-selected:focus-visible,
.event-answer:focus-visible,
.cargo-box:focus-visible,
.lane-card:focus-visible,
.depart-cover:focus-visible {
  box-shadow: 0 0 0 2px var(--focus-dark);
}

/* ── Forms ─────────────────────────────────────────────── */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.field__label {
  font-weight: 800;
}

.input {
  min-height: var(--tap);
  padding: 0.4em 0.8em;
  border: 2px solid var(--line-strong);
  border-radius: var(--r-md);
  background: var(--card);
  font-size: var(--fs-md);
}

.input:focus-visible {
  border-color: var(--sea-500);
}

/* ── Chips and pills ───────────────────────────────────── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.1em 0.6em;
  border-radius: var(--r-pill);
  background: var(--sea-100);
  color: var(--sea-800);
  font-size: var(--fs-sm);
  font-weight: 800;
  white-space: nowrap;
  max-width: 100%;
}

.chip--cold {
  background: var(--cold-bg);
  color: #1d5f99;
}

.chip--rush {
  background: var(--accent-100);
  color: var(--accent-700);
}

.chip--gain {
  background: var(--gain-bg);
  color: var(--gain);
}

.chip--loss {
  background: var(--loss-bg);
  color: var(--loss);
}

.gain {
  color: var(--gain);
}

.loss {
  color: var(--loss);
}

/* ── Boot / "still building" page ──────────────────────── */
.boot {
  min-height: 70vh;
  display: grid;
  place-items: center;
  padding: var(--sp-6) var(--gutter);
  text-align: center;
}

.boot__card {
  max-width: 640px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-4);
}

.boot__ship {
  font-size: 64px;
  line-height: 1;
}

noscript .boot__card {
  margin: 10vh auto;
  padding: var(--sp-6);
  background: var(--card);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
}

/* ── "Saving is off" banner (above every screen) ───────── */
.save-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2) var(--sp-3);
  padding: var(--sp-2) var(--gutter);
  background: var(--accent-100);
  border-bottom: 2px solid var(--accent-400);
  color: var(--ink);
  font-weight: 700;
  text-align: center;
}

.save-banner__text {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
}

/* The safe page (a career that will not open): plain and roomy. */
.screen--safe .panel {
  max-width: 640px;
  margin: var(--sp-6) auto;
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 60em) {
  .split {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 37.5em) {
  :root {
    --gutter: 16px;
  }

  h1 { font-size: var(--fs-xl); }
  h2 { font-size: var(--fs-lg); }
  h3 { font-size: var(--fs-md); }

  .panel {
    padding: var(--sp-4);
    border-radius: var(--r-md);
  }

  .app {
    padding-top: var(--sp-3);
  }
}

/* ── Reduced motion (OS setting, or the in-game setting via html.reduce-motion) ── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}

html.reduce-motion *,
html.reduce-motion *::before,
html.reduce-motion *::after {
  animation-duration: 1ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 1ms !important;
  scroll-behavior: auto !important;
}