/* My Airline Evolution website. Colours and type come from the game's theme (src/ui/theme.rs). */

@font-face { font-family: "Barlow"; src: url("fonts/Barlow-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("fonts/Barlow-SemiBold.ttf") format("truetype"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("fonts/Barlow-Bold.ttf") format("truetype"); font-weight: 700; font-display: swap; }

:root {
  --night: #050d20;      /* extreme background */
  --navy: #08142b;       /* BG_DEEP */
  --panel: #0f1f3d;      /* PANEL */
  --panel-alt: #142849;  /* PANEL_ALT */
  --border: #22406e;     /* BORDER */
  --text: #e8eef8;       /* TEXT */
  --dim: #8fa3c4;        /* TEXT_DIM */
  --orange: #ff8a1f;     /* livery orange: actions only */
  --blue: #3b8fe8;
  --green: #3ccb7f;
  --amber: #f5c04a;      /* the board's lit characters */

  --measure: 62ch;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --page: 76rem;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--navy);
  color: var(--text);
  font: 400 1.125rem/1.55 "Barlow", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
a { color: var(--text); text-underline-offset: 0.2em; text-decoration-color: var(--border); }
a:hover { text-decoration-color: var(--orange); }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 { margin: 0; font-weight: 700; line-height: 1.08; text-wrap: balance; }
h2 { font-size: clamp(1.9rem, 1.2rem + 2.4vw, 3rem); letter-spacing: -0.012em; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.2; }
p { margin: 0; }
code { font: inherit; font-weight: 600; color: var(--text); background: var(--panel-alt); padding: 0.05em 0.35em; border-radius: 3px; }

.skip { position: absolute; left: -999px; top: 0.5rem; background: var(--orange); color: var(--navy); padding: 0.5rem 1rem; font-weight: 700; z-index: 10; }
.skip:focus { left: 0.5rem; }

/* ---------- header ---------- */

.top {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.75rem var(--gutter);
  background: rgb(8 20 43 / 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgb(34 64 110 / 0.6);
}
.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; font-weight: 700; font-size: 1.15rem; letter-spacing: 0.01em; }
.top nav { display: flex; gap: clamp(0.9rem, 2.5vw, 2rem); font-weight: 600; font-size: 1rem; }
.top nav a { text-decoration: none; color: var(--dim); }
.top nav a:hover { color: var(--text); }
.top nav .nav-play { color: var(--orange); }
@media (max-width: 560px) { .top nav a:not(.nav-play) { display: none; } }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 3rem; padding: 0.7rem 1.4rem;
  font-weight: 700; font-size: 1.05rem; text-decoration: none;
  border-radius: 4px;
  transition: background-color 120ms, border-color 120ms;
}
.btn-primary { background: var(--orange); color: #1a0d00; }
.btn-primary:hover { background: #ff9d45; }
.btn-quiet { border: 1px solid var(--border); color: var(--text); background: rgb(15 31 61 / 0.6); }
.btn-quiet:hover { border-color: var(--dim); }

.fineprint { font-size: 0.95rem; color: var(--dim); }
.fineprint a { color: var(--dim); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 32rem) minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  padding: clamp(3rem, 8vw, 6rem) var(--gutter) clamp(2rem, 5vw, 4rem);
  overflow: hidden;
  /* The sky from the game's setup screen: night above, a warm band at the horizon. */
  background:
    radial-gradient(120% 60% at 70% 115%, rgb(255 138 31 / 0.18), transparent 60%),
    radial-gradient(90% 70% at 85% 100%, rgb(59 143 232 / 0.22), transparent 70%),
    linear-gradient(180deg, var(--night) 0%, #0b1a38 70%, var(--navy) 100%);
}
.hero h1 {
  font-size: clamp(2.6rem, 1.4rem + 4.6vw, 5rem);
  letter-spacing: -0.02em;
  line-height: 1;
}
.lede { margin-top: 1.5rem; max-width: 34rem; font-size: clamp(1.1rem, 1rem + 0.4vw, 1.3rem); color: #c9d5e8; }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.hero .fineprint { margin-top: 1rem; max-width: 30rem; }

/* The plane flies off the left edge (tail), never the right (nose). */
.hero-plane { margin-left: -6%; padding-top: 2rem; }
.hero-plane img { width: 100%; filter: drop-shadow(0 30px 40px rgb(0 0 0 / 0.45)); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-right: var(--gutter); }
  .hero-plane { order: -1; margin: 0 0 0 calc(-1 * var(--gutter) - 8%); padding-top: 0; }
}

/* ---------- shared section layout ---------- */

main > section { padding: clamp(4rem, 9vw, 7rem) var(--gutter); }
.section-head { max-width: var(--page); margin: 0 auto 2.5rem; }
.section-head p { margin-top: 1rem; max-width: var(--measure); color: #c9d5e8; }

/* A screenshot shown as a game window: the game's panel border and corner notch. */
.window {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: var(--night);
  box-shadow: 0 2px 0 rgb(59 143 232 / 0.15) inset, 0 40px 80px -30px rgb(0 0 0 / 0.7);
}

/* ---------- map ---------- */

.map {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(16rem, 1fr);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
  max-width: calc(var(--page) + 2 * var(--gutter));
  margin: 0 auto;
}
.map-text p { margin-top: 1rem; color: #c9d5e8; }
@media (max-width: 900px) { .map { grid-template-columns: 1fr; } }

/* ---------- departures board ---------- */

.career { background: linear-gradient(180deg, var(--navy), var(--night)); }

.board {
  max-width: var(--page);
  margin: 0 auto;
  background: #030913;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem clamp(0.5rem, 2vw, 1.25rem) 0.75rem;
  box-shadow: inset 0 0 0 6px #0a1427, 0 30px 60px -30px rgb(0 0 0 / 0.8);
}
.board-row {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1.25fr) minmax(0, 1fr) 7.5rem;
  gap: 1.25rem;
  align-items: baseline;
  padding: 0.95rem 0.5rem;
  border-bottom: 1px solid #13223f;
  font-variant-numeric: tabular-nums;
}
.board-row:last-child { border-bottom: 0; }
.board-head {
  padding-block: 0.6rem;
  color: var(--dim);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.board .lv,
.board .st {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;   /* a departures board is set in capitals */
}
.board .lv {
  /* Each digit sits on its own flap. */
  justify-self: start;
  min-width: 2.6rem;
  text-align: center;
  font-size: 1.6rem;
  line-height: 1.1;
  color: var(--amber);
  background: linear-gradient(180deg, #0f1c33 0 49%, #08111f 51% 100%);
  border-radius: 4px;
  padding: 0.2rem 0.5rem;
  box-shadow: inset 0 -1px 0 #000;
}
.board-head span:first-child { padding-left: 0; }
.board .ac { color: var(--dim); }
.board .st { color: var(--dim); font-size: 0.95rem; display: flex; align-items: center; gap: 0.45rem; }
.board .st::before {
  /* padlock, as on the game's locked controls */
  content: "";
  width: 0.8rem; height: 0.95rem; flex: none;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 14'%3E%3Cpath d='M3 6V4a3 3 0 0 1 6 0v2h1a1 1 0 0 1 1 1v6a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1zm1.5 0h3V4a1.5 1.5 0 0 0-3 0z'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 14'%3E%3Cpath d='M3 6V4a3 3 0 0 1 6 0v2h1a1 1 0 0 1 1 1v6a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1zm1.5 0h3V4a1.5 1.5 0 0 0-3 0z'/%3E%3C/svg%3E") center / contain no-repeat;
}
.board .st-open { color: var(--green); }
.board .st-open::before {
  width: 0.55rem; height: 0.55rem; border-radius: 50%;
  -webkit-mask: none; mask: none;
  box-shadow: 0 0 10px var(--green);
  animation: blink 1.6s steps(2, jump-none) infinite;
}
@keyframes blink { 50% { opacity: 0.25; } }
@media (prefers-reduced-motion: reduce) { .board .st-open::before { animation: none; } }

.board-note { max-width: var(--page); margin: 1.5rem auto 0; color: var(--dim); }

@media (max-width: 760px) {
  .board-head { display: none; }
  .board-row {
    grid-template-columns: auto 1fr;
    grid-template-areas: "lv st" "un un" "ac ac";
    gap: 0.5rem 1rem;
    align-items: center;
  }
  .board .lv { grid-area: lv; }
  .board .st { grid-area: st; justify-self: end; }
  .board-row > :nth-child(2) { grid-area: un; }
  .board .ac { grid-area: ac; font-size: 1rem; }
}

/* ---------- fleet ---------- */

.hangar {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--page);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(15.5rem, 40vw), 1fr));
  gap: 2.5rem clamp(1rem, 3vw, 1.5rem);
}
.hangar li { display: flex; flex-direction: column; }
.hangar img {
  /* trimmed renders of different shapes, sat on a common baseline */
  width: 100%;
  aspect-ratio: 5 / 2;
  object-fit: contain;
  object-position: center bottom;
  margin-bottom: 0.75rem;
}
.hangar h3 { border-top: 1px solid var(--border); padding-top: 0.75rem; }
.hangar dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.15rem 1rem;
  margin: 0.5rem 0 0;
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
}
.hangar dt { color: var(--dim); }
.hangar dd { margin: 0; }
@media (max-width: 560px) { .hangar dl { font-size: 0.9rem; gap: 0.1rem 0.6rem; } .hangar h3 { font-size: 1.1rem; } }
.fleet-note { max-width: var(--page); margin: 2.5rem auto 0; color: var(--dim); font-size: 1rem; }

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

.screens { background: var(--night); }
.tabs {
  max-width: var(--page);
  margin: 0 auto 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  border-bottom: 1px solid var(--border);
}
.tabs button {
  appearance: none;
  font: inherit;
  font-weight: 600;
  font-size: 1rem;
  color: var(--dim);
  background: none;
  border: 0;
  border-bottom: 3px solid transparent;
  margin-bottom: -1px;
  padding: 0.7rem 1rem;
  cursor: pointer;
}
.tabs button:hover { color: var(--text); }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--orange); }
.panel { max-width: var(--page); margin: 0 auto; }
.panel > p { max-width: var(--measure); margin-bottom: 1.5rem; color: #c9d5e8; min-height: 3.2em; }

/* ---------- play ---------- */

.ways {
  max-width: var(--page);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 3rem);
}
.ways article { display: flex; flex-direction: column; align-items: flex-start; gap: 1rem; border-top: 2px solid var(--border); padding-top: 1.25rem; }
.ways article:first-child { border-top-color: var(--orange); }
.ways p:not(.fineprint) { color: #c9d5e8; }
.ways pre { margin: 0; }
.ways pre code { display: block; padding: 0.7rem 1rem; font-size: 1.05rem; }
@media (max-width: 900px) { .ways { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */

.foot {
  padding: 2.5rem var(--gutter) 3rem;
  border-top: 1px solid #13223f;
  color: var(--dim);
  font-size: 0.95rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 2rem;
}
.foot a { color: var(--dim); }