@font-face {
  font-family: "Fell Maritime";
  src: url("assets/fonts/im-fell-english-sc.ttf") format("truetype");
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ink: #020708;
  --deep: #071315;
  --panel: #0c1a1c;
  --panel-raised: #112326;
  --brass: #c69b57;
  --brass-bright: #e0c184;
  --verdigris: #4c8b86;
  --bone: #eee5cf;
  --paper: #cfc6ad;
  --muted: #9baaa3;
  --rust: #a4513f;
  --danger: #d46a50;
  --pearl: #e7dcae;
  font-family: "Arial Narrow", "Avenir Next Condensed", ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }

html,
body {
  width: 600px;
  height: 600px;
  margin: 0;
  overflow: hidden;
  background: #000;
  color: var(--bone);
  user-select: none;
}

button { font: inherit; }

.app-shell {
  position: relative;
  width: 600px;
  height: 600px;
  overflow: hidden;
  background: #000;
}

#game-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 600px;
  height: 600px;
  background: #000;
}

.screen {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 240ms ease, transform 360ms cubic-bezier(.22,.72,.22,1), visibility 0s linear 360ms;
  background:
    linear-gradient(180deg, rgba(13, 37, 39, .46), rgba(0, 0, 0, .12) 42%, #000 92%),
    repeating-linear-gradient(112deg, transparent 0 42px, rgba(198,155,87,.018) 43px 44px),
    #000;
}

.screen::after {
  content: "";
  position: absolute;
  inset: 12px;
  pointer-events: none;
  border: 1px solid rgba(198,155,87,.14);
  clip-path: polygon(0 0, 36px 0, 36px 1px, calc(100% - 36px) 1px, calc(100% - 36px) 0, 100% 0, 100% 36px, calc(100% - 1px) 36px, calc(100% - 1px) calc(100% - 36px), 100% calc(100% - 36px), 100% 100%, calc(100% - 36px) 100%, calc(100% - 36px) calc(100% - 1px), 36px calc(100% - 1px), 36px 100%, 0 100%, 0 calc(100% - 36px), 1px calc(100% - 36px), 1px 36px, 0 36px);
}

.screen.active {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition-delay: 0s;
}

.home-hero {
  position: relative;
  height: 236px;
  padding-top: 118px;
  text-align: center;
}

.hero-drone {
  position: absolute;
  top: -39px;
  left: 50%;
  width: 166px;
  height: 166px;
  aspect-ratio: 1;
  transform: translateX(-50%);
  object-fit: contain;
  filter: sepia(.08) contrast(1.06);
  animation: vessel-arrive 900ms cubic-bezier(.22,.72,.22,1) both;
}

@keyframes vessel-arrive {
  from { opacity: 0; transform: translateX(-50%) translateY(-12px) rotate(-2deg); }
  to { opacity: 1; transform: translateX(-50%) translateY(0) rotate(0); }
}

.depth-mark {
  position: absolute;
  top: 17px;
  color: rgba(198,155,87,.6);
  font: 17px/1 "Fell Maritime", Georgia, serif;
  letter-spacing: 1px;
  text-align: left;
}
.depth-mark small { color: rgba(155,170,163,.72); font: 9px/1.2 ui-monospace, monospace; letter-spacing: 1px; }
.depth-mark-left { left: 4px; }
.depth-mark-right { right: 4px; text-align: right; }

.eyebrow {
  margin: 0 0 4px;
  color: var(--brass-bright);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 2.4px;
  text-transform: uppercase;
}

h1,
h2,
h3 { font-family: "Fell Maritime", Georgia, serif; font-weight: 400; }

h1 {
  margin: 0;
  color: var(--bone);
  font-size: 39px;
  line-height: .75;
  letter-spacing: 1px;
}
h1 span { color: var(--brass-bright); font-size: 30px; letter-spacing: 4px; }
h2 { margin: 0; font-size: 29px; line-height: 1.05; letter-spacing: .5px; }
h3 { margin: 0 0 4px; font-size: 19px; letter-spacing: .2px; }
.tagline { margin: 11px auto 0; max-width: 470px; color: var(--paper); font-size: 16px; line-height: 1.25; letter-spacing: .2px; }

.menu-stack { display: grid; gap: 10px; }

.focusable {
  position: relative;
  min-height: 88px;
  border: 1px solid rgba(198,155,87,.46);
  border-radius: 3px;
  padding: 0 24px;
  color: var(--bone);
  background:
    linear-gradient(90deg, rgba(76,139,134,.12), transparent 62%),
    var(--panel);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .3px;
  text-align: left;
  outline: none;
  opacity: .82;
  transition: transform 475ms cubic-bezier(.6,0,.4,1), border-color 300ms ease, opacity 300ms ease, background-color 300ms ease;
}

.focusable::before,
.focusable::after {
  content: "";
  position: absolute;
  width: 5px;
  height: 5px;
  border: 1px solid rgba(224,193,132,.5);
  border-radius: 50%;
  top: 7px;
}
.focusable::before { left: 7px; }
.focusable::after { right: 7px; }
.focusable > span:first-child { display: inline-grid; width: 36px; color: var(--brass-bright); font-family: "Fell Maritime", serif; font-size: 21px; }
.focusable b { float: right; color: var(--pearl); }
.focusable:focus {
  opacity: 1;
  transform: scale(.965);
  border-color: var(--brass-bright);
  background-color: var(--panel-raised);
  outline: 2px double rgba(224,193,132,.72);
  outline-offset: -6px;
}
.focusable:active { transform: scale(.93); transition-duration: 100ms; }
.focusable.primary {
  border-color: var(--brass-bright);
  color: #081113;
  background:
    repeating-linear-gradient(115deg, rgba(255,255,255,.05) 0 1px, transparent 1px 18px),
    var(--brass);
}
.focusable.primary > span:first-child { color: #132426; }
.focusable.primary:focus { background-color: var(--brass-bright); outline-color: rgba(8,17,19,.65); }

.input-hint { margin: auto 0 0; text-align: center; color: #8d9b96; font: 12px ui-monospace, monospace; letter-spacing: .45px; }
kbd { border: 1px solid #59645e; border-radius: 2px; padding: 3px 7px; color: var(--paper); background: #0b1415; font: inherit; }

.screen-header { display: grid; grid-template-columns: 72px 1fr auto; gap: 16px; align-items: center; min-height: 88px; }
.icon-button { width: 72px; min-height: 88px; padding: 0; text-align: center; font: 30px "Fell Maritime", serif; }
.instruction-grid { display: grid; gap: 10px; margin: 18px 0 14px; }
.instruction-grid article {
  display: grid;
  grid-template-columns: 62px 1fr;
  align-items: center;
  min-height: 104px;
  padding: 13px 18px;
  border: 1px solid rgba(198,155,87,.36);
  background:
    linear-gradient(90deg, rgba(76,139,134,.09), transparent),
    var(--panel);
}
.instruction-icon { color: var(--brass-bright); font: 35px "Fell Maritime", serif; text-align: center; }
.instruction-grid p { margin: 0; color: var(--paper); font-size: 15px; line-height: 1.32; }
.wide { width: 100%; text-align: center; }

.core-balance { padding: 10px 14px; border: 1px solid rgba(224,193,132,.42); background: #18211d; color: var(--pearl); font-weight: 800; }
.armory-intro { margin: 16px 0; color: var(--muted); }
.armory-list { display: grid; gap: 12px; }
.armory-item { display: grid; grid-template-columns: 1fr 92px; align-items: center; min-height: 106px; padding: 14px 16px 14px 20px; }
.armory-copy { display: grid; grid-template-columns: 68px 1fr; align-items: center; }
.armory-glyph {
  display: block;
  width: 58px;
  height: 58px;
  aspect-ratio: 1;
  background-image: url("assets/abyssal-icons.png");
  background-size: 300% 300%;
  background-repeat: no-repeat;
}
.armory-glyph.icon-3 { background-position: 0 50%; }
.armory-glyph.icon-4 { background-position: 50% 50%; }
.armory-glyph.icon-5 { background-position: 100% 50%; }
.armory-item h3 { color: var(--bone); font-size: 21px; }
.armory-item p { margin: 4px 0 0; color: var(--paper); font-size: 14px; line-height: 1.25; }
.armory-price { text-align: right; color: var(--pearl); font-size: 16px; font-weight: 900; }
.armory-item.unlocked .armory-price { color: var(--verdigris); }

.hud { position: absolute; inset: 0; z-index: 5; display: none; pointer-events: none; padding: 16px 18px; }
.hud.active { display: block; }
.hud-top { display: grid; grid-template-columns: 1fr 90px 76px; gap: 10px; align-items: center; }
.health-wrap { display: grid; grid-template-columns: auto 1fr 34px; gap: 8px; align-items: center; color: var(--paper); font: 12px ui-monospace, monospace; font-weight: 900; }
.bar,
.xp-track { overflow: hidden; height: 9px; border-radius: 0; background: #10191a; border: 1px solid rgba(198,155,87,.38); }
.bar i,
.xp-track i { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, var(--rust), var(--brass-bright)); transition: width 160ms linear; }
.timer,
.level-chip { padding: 8px 8px; border: 1px solid rgba(198,155,87,.32); background: rgba(8,17,18,.94); text-align: center; font-weight: 900; font-variant-numeric: tabular-nums; }
.timer { color: var(--bone); font: 20px "Fell Maritime", serif; }
.level-chip { color: var(--brass-bright); font: 12px ui-monospace, monospace; }
.xp-track { position: absolute; top: 59px; left: 18px; right: 18px; height: 4px; }
.xp-track i { background: var(--verdigris); }
.hud-bottom { position: absolute; bottom: 15px; left: 18px; right: 18px; display: flex; justify-content: space-between; color: var(--bone); font: 12px ui-monospace, monospace; font-weight: 800; letter-spacing: .6px; }
.boss-warning { position: absolute; top: 80px; left: 50%; transform: translateX(-50%) translateY(-10px); padding: 8px 14px; border: 1px solid var(--brass-bright); opacity: 0; color: var(--brass-bright); background: rgba(28,16,11,.95); font: 14px "Fell Maritime", serif; letter-spacing: .7px; transition: .3s ease; }
.boss-warning.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.modal-screen { justify-content: center; background: rgba(0,4,5,.72); backdrop-filter: blur(3px); }
.modal-panel { position: relative; width: 100%; padding: 27px 22px; border: 1px solid var(--brass); border-radius: 2px; background: #0a1719; text-align: center; }
.modal-panel::before { content: "✦  ·  NORTH ATLANTIC SALVAGE OFFICE  ·  ✦"; display: block; margin-bottom: 10px; color: rgba(198,155,87,.66); font: 10px ui-monospace, monospace; letter-spacing: .75px; }
.modal-help { margin: 7px 0 16px; color: var(--paper); font-size: 14px; }
.upgrade-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.upgrade-card { min-height: 242px; padding: 14px 11px; text-align: center; }
.focusable.upgrade-card > .upgrade-icon {
  display: block;
  width: 72px;
  height: 72px;
  aspect-ratio: 1;
  margin: 0 auto 8px;
  background-image: url("assets/abyssal-icons.png");
  background-size: 300% 300%;
  background-repeat: no-repeat;
}
.upgrade-icon.icon-0 { background-position: 0 0; }
.upgrade-icon.icon-1 { background-position: 50% 0; }
.upgrade-icon.icon-2 { background-position: 100% 0; }
.upgrade-icon.icon-3 { background-position: 0 50%; }
.upgrade-icon.icon-4 { background-position: 50% 50%; }
.upgrade-icon.icon-5 { background-position: 100% 50%; }
.upgrade-icon.icon-6 { background-position: 0 100%; }
.upgrade-icon.icon-7 { background-position: 50% 100%; }
.upgrade-icon.icon-8 { background-position: 100% 100%; }
.upgrade-card h3 { min-height: 42px; font-size: 18px; line-height: 1.12; }
.upgrade-card p { margin: 6px 0 0; color: var(--paper); font-size: 14px; line-height: 1.28; }
.upgrade-card em { display: block; margin-top: 9px; color: var(--brass-bright); font: 14px ui-monospace, monospace; font-style: normal; font-weight: 800; }

.result-panel { padding: 27px 30px; }
.result-copy { margin: 10px 0 20px; color: var(--muted); }
.result-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.result-stats div { padding: 14px 6px; border: 1px solid rgba(198,155,87,.25); background: #102022; }
.result-stats b { display: block; color: var(--bone); font: 24px "Fell Maritime", serif; }
.result-stats span { color: var(--paper); font: 12px ui-monospace, monospace; letter-spacing: .6px; }
.cores-earned { margin: 17px 0; color: var(--pearl); font-size: 16px; font-weight: 900; }
.result-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.result-actions .focusable { text-align: center; }

.toast { position: absolute; z-index: 30; top: 24px; left: 50%; max-width: 536px; padding: 12px 20px; border: 1px solid var(--brass-bright); opacity: 0; transform: translate(-50%, -10px); background: #152326; color: var(--bone); font: 14px "Fell Maritime", serif; pointer-events: none; transition: .25s ease; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}