/* GAME FLEET — a 1970s mission-control registry, drawn flat: solid fills, hard edges, hard offset shadows. */
:root {
  --bg: #0d1321;
  --panel: #131b2d;
  --panel2: #1a2439;
  --line: #2b3b5e;
  --ink: #ece3cb;
  --dim: #8d95a9;
  --amber: #ffb23f;
  --amber-d: #b8761a;
  --cyan: #4fd6c8;
  --red: #ff5a4e;
  --navy: #0a0f1a;
  --display: "Michroma", "DotGothic16", sans-serif;
  --dot: "DotGothic16", "Zen Kaku Gothic New", sans-serif;
  --body: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  --mono: "Share Tech Mono", ui-monospace, monospace;
  --gut: clamp(16px, 4vw, 48px);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 15px/1.8 var(--body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
::selection { background: var(--amber); color: var(--navy); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

/* ---------- background ---------- */
#stars { position: fixed; inset: 0; width: 100%; height: 100%; z-index: -2; display: block; }
.grid-bg {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.35;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, #000 0, transparent 70%);
  -webkit-mask-image: linear-gradient(180deg, #000 0, transparent 70%);
  animation: grid-drift 18s linear infinite;
}
@keyframes grid-drift { to { background-position: 0 64px, 64px 0; } }

/* ---------- boot ---------- */
#boot {
  position: fixed; inset: 0; z-index: 100; background: var(--navy); color: var(--amber);
  display: grid; align-content: center; justify-items: start; padding: 0 var(--gut);
  font: 13px/1.7 var(--mono); letter-spacing: 0.04em;
  transition: clip-path 0.55s steps(8), visibility 0s 0.55s;
  clip-path: inset(0 0 0 0);
}
#boot.done { clip-path: inset(50% 0 50% 0); visibility: hidden; }
#boot pre { margin: 0 0 16px; min-height: 13.6em; white-space: pre-wrap; font: inherit; }
#boot pre .ok { color: var(--cyan); }
.boot-bar { width: min(420px, 100%); height: 10px; border: 1px solid var(--amber); padding: 1px; }
.boot-bar i { display: block; height: 100%; width: 0; background: var(--amber); transition: width 0.15s steps(4); }
#boot-skip { margin-top: 18px; background: none; border: 0; color: var(--dim); font: inherit; cursor: pointer; padding: 6px 0; }
#boot-skip:hover { color: var(--ink); }

/* ---------- header ---------- */
.bar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 10px var(--gut);
  background: var(--navy); border-bottom: 2px solid var(--amber);
  font: 12px/1 var(--mono); letter-spacing: 0.12em;
}
.mark { display: flex; align-items: center; gap: 8px; text-decoration: none; font-family: var(--display); font-size: 12px; color: var(--amber); }
.mark svg { width: 22px; height: 22px; fill: none; stroke: var(--amber); stroke-width: 1.6; }
.mark svg ellipse { transform-origin: 12px 12px; animation: spin 9s linear infinite; }
.mark small { font: 11px var(--dot); color: var(--dim); letter-spacing: 0.1em; margin-left: 4px; }
.sys { margin-left: auto; display: flex; align-items: center; gap: 8px; color: var(--cyan); }
.sys i, .status i { width: 8px; height: 8px; background: currentColor; display: inline-block; animation: blink 1.4s steps(2) infinite; }
.clock { display: grid; text-align: right; gap: 3px; min-width: 92px; }
.clock b { color: var(--ink); font-weight: 400; font-size: 14px; }
.clock small { color: var(--dim); font-size: 10px; }
@keyframes blink { 50% { opacity: 0.15; } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- hero ---------- */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(24px, 4vw, 64px);
  align-items: center; padding: clamp(36px, 7vw, 96px) var(--gut) clamp(32px, 5vw, 64px);
  max-width: 1320px; margin: 0 auto;
}
.kicker { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 18px; font: 12px/1 var(--mono); letter-spacing: 0.16em; }
.kicker span { padding: 6px 9px; border: 1px solid var(--line); color: var(--dim); }
.kicker span:first-child { background: var(--amber); border-color: var(--amber); color: var(--navy); }
.title { margin: 0; white-space: nowrap; font: 400 clamp(40px, 8.2vw, 128px)/0.98 var(--display); letter-spacing: -0.02em; color: var(--ink); }
.title .w { display: block; overflow: hidden; }
.title .w:nth-child(2) { color: var(--amber); padding-left: 0.3em; }
.title .w > i { display: inline-block; font-style: normal; transform: translateY(105%); animation: rise 0.7s cubic-bezier(0.2, 0.9, 0.2, 1) forwards; animation-delay: calc(var(--k) * 55ms + var(--d, 0ms)); }
@keyframes rise { to { transform: none; } }
.sub { margin: 26px 0 10px; font: clamp(17px, 2.2vw, 24px)/1.5 var(--dot); color: var(--cyan); min-height: 1.5em; }
.sub.typing::after { content: "▌"; animation: blink 0.8s steps(2) infinite; margin-left: 2px; }
.lead { margin: 0 0 26px; max-width: 34em; color: var(--dim); }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0 0 30px; border: 1px solid var(--line); background: var(--panel); }
.stats div { padding: 12px 14px; border-left: 1px solid var(--line); }
.stats div:first-child { border-left: 0; }
.stats dt { font: 11px/1 var(--dot); color: var(--dim); letter-spacing: 0.08em; }
.stats dd { margin: 8px 0 0; font: 26px/1 var(--mono); color: var(--ink); }
.stats dd small { font: 12px var(--dot); color: var(--dim); margin-left: 3px; }
.stats dd.date { font-size: 15px; padding-top: 6px; color: var(--amber); }
.cta {
  display: inline-flex; gap: 14px; align-items: center; padding: 14px 22px;
  background: var(--amber); color: var(--navy); text-decoration: none; font: 700 15px var(--body);
  box-shadow: 6px 6px 0 var(--amber-d); transition: transform 0.15s, box-shadow 0.15s;
}
.cta span { font-family: var(--mono); animation: nudge 1.2s ease-in-out infinite; }
.cta:hover { transform: translate(3px, 3px); box-shadow: 3px 3px 0 var(--amber-d); }
@keyframes nudge { 50% { transform: translateY(3px); } }

/* radar */
.radar-wrap { position: relative; justify-self: center; width: min(460px, 100%); }
.radar { width: 100%; display: block; overflow: visible; }
.radar .ring { fill: none; stroke: var(--line); stroke-width: 1; }
.radar .ring:first-child { stroke: var(--cyan); stroke-width: 1.4; }
.radar .axis { stroke: var(--line); stroke-dasharray: 2 4; }
.radar .orbit { fill: none; stroke: var(--amber); stroke-width: 0.8; opacity: 0.55; }
.radar .orbit circle { fill: var(--amber); stroke: none; }
.radar .o1 { animation: spin 26s linear infinite; }
.radar .o2 { animation: spin 14s linear infinite reverse; }
.radar .sweep { animation: spin 4s linear infinite; transform-origin: 0 0; }
.radar .sweep path { fill: var(--cyan); opacity: 0.16; }
.radar .sweep line { stroke: var(--cyan); stroke-width: 1.4; }
.radar .core { fill: var(--amber); }
.blip { cursor: pointer; }
.blip circle.dot { fill: var(--ink); }
.blip.new circle.dot { fill: var(--red); }
.blip circle.ping { fill: none; stroke: currentColor; color: var(--cyan); transform-box: fill-box; transform-origin: center; animation: ping 2.4s ease-out infinite; animation-delay: var(--d); }
.blip text { font: 6px var(--mono); fill: var(--dim); letter-spacing: 0.08em; }
.blip:hover text, .blip:focus text { fill: var(--amber); }
.blip:hover circle.dot { fill: var(--amber); }
@keyframes ping { from { transform: scale(0.6); opacity: 1; } to { transform: scale(3.2); opacity: 0; } }
.radar-cap { margin: 8px 0 0; text-align: center; font: 12px var(--mono); letter-spacing: 0.14em; color: var(--dim); min-height: 1.5em; }

/* ---------- ticker ---------- */
.ticker { background: var(--amber); color: var(--navy); overflow: hidden; border-block: 2px solid var(--navy); }
.tick-track { display: flex; width: max-content; animation: tick 48s linear infinite; }
.tick-track span { padding: 9px 26px; font: 13px/1 var(--mono); letter-spacing: 0.06em; white-space: nowrap; }
.ticker:hover .tick-track { animation-play-state: paused; }
@keyframes tick { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
.registry, .signal { max-width: 1320px; margin: 0 auto; padding: clamp(40px, 6vw, 80px) var(--gut) 0; }
.sec { display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px 16px; margin: 0 0 22px; font-weight: 400; }
.sec .no { font: 14px var(--mono); color: var(--navy); background: var(--cyan); padding: 4px 8px; }
.sec .en { font: clamp(20px, 3vw, 30px) var(--display); color: var(--ink); }
.sec .ja { font: 15px var(--dot); color: var(--dim); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.chip {
  border: 1px solid var(--line); background: var(--panel); color: var(--dim);
  font: 13px var(--body); padding: 7px 14px; cursor: pointer; transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.chip:hover { color: var(--ink); border-color: var(--dim); }
.chip.on { background: var(--cyan); border-color: var(--cyan); color: var(--navy); font-weight: 700; }

/* ---------- vessel cards ---------- */
.fleet { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(340px, 100%), 1fr)); gap: 22px; }
.vessel {
  position: relative; display: flex; flex-direction: column; min-width: 0;
  background: var(--panel); border: 1px solid var(--line);
  box-shadow: 8px 8px 0 var(--navy);
  opacity: 0; transform: translateY(26px);
  transition: opacity 0.5s, transform 0.5s cubic-bezier(0.2, 0.9, 0.2, 1), border-color 0.2s, box-shadow 0.2s;
  transition-delay: calc(var(--j, 0) * 70ms), calc(var(--j, 0) * 70ms), 0s, 0s;
}
.vessel.in { opacity: 1; transform: none; }
.vessel.in:hover { border-color: var(--amber); box-shadow: 8px 8px 0 var(--amber-d); transform: translate(-2px, -2px); transition-delay: 0s; }
.vessel[hidden] { display: none; }
.v-head { display: flex; align-items: center; gap: 8px; padding: 9px 12px; border-bottom: 1px solid var(--line); font: 12px/1 var(--mono); letter-spacing: 0.1em; }
.hull { color: var(--amber); }
.new { background: var(--red); color: var(--navy); padding: 3px 6px; font-weight: 700; animation: blink 1.1s steps(2) infinite; }
.status { margin-left: auto; display: flex; align-items: center; gap: 6px; color: var(--dim); }
.status b { font-weight: 400; }
.status em { font-style: normal; min-width: 5ch; text-align: right; }
.status.ok { color: var(--cyan); }
.status.ng { color: var(--red); }
.status.ng i { animation: none; }
.v-shot { position: relative; display: block; aspect-ratio: 1200 / 630; overflow: hidden; background: var(--navy); }
.v-shot img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.6s cubic-bezier(0.2, 0.9, 0.2, 1); }
.vessel.in .v-shot img { animation: decode 0.9s steps(6) both; animation-delay: calc(var(--j, 0) * 70ms + 150ms); }
@keyframes decode { from { clip-path: inset(0 0 100% 0); filter: contrast(2) saturate(0); } to { clip-path: inset(0 0 0 0); filter: none; } }
.vessel:hover .v-shot img { transform: scale(1.05); }
.noimg { display: grid; place-items: center; height: 100%; font: 14px var(--mono); color: var(--dim); letter-spacing: 0.2em; }
.bracket { position: absolute; width: 18px; height: 18px; border: 0 solid var(--amber); transition: all 0.25s; }
.bracket.tl { top: 8px; left: 8px; border-top-width: 2px; border-left-width: 2px; }
.bracket.tr { top: 8px; right: 8px; border-top-width: 2px; border-right-width: 2px; }
.bracket.bl { bottom: 8px; left: 8px; border-bottom-width: 2px; border-left-width: 2px; }
.bracket.br { bottom: 8px; right: 8px; border-bottom-width: 2px; border-right-width: 2px; }
.vessel:hover .bracket { width: 28px; height: 28px; }
.vessel:hover .bracket.tl, .vessel:hover .bracket.tr { top: 14px; }
.vessel:hover .bracket.bl, .vessel:hover .bracket.br { bottom: 14px; }
.vessel:hover .bracket.tl, .vessel:hover .bracket.bl { left: 14px; }
.vessel:hover .bracket.tr, .vessel:hover .bracket.br { right: 14px; }
.scan { position: absolute; left: 0; right: 0; top: -12%; height: 10%; background: var(--cyan); opacity: 0; mix-blend-mode: screen; }
.vessel:hover .scan { animation: scan 1.4s linear infinite; }
@keyframes scan { 0% { top: -12%; opacity: 0.22; } 100% { top: 104%; opacity: 0.22; } }
.v-body { padding: 16px 16px 6px; flex: 1; }
.v-body h3 { margin: 0; font: 700 19px/1.45 var(--body); }
.vessel:hover .v-body h3 { animation: glitch 0.35s steps(2) 1; }
@keyframes glitch { 0% { text-shadow: 2px 0 var(--red), -2px 0 var(--cyan); } 50% { text-shadow: -2px 0 var(--red), 2px 0 var(--cyan); transform: translateX(1px); } 100% { text-shadow: none; transform: none; } }
.en { margin: 2px 0 10px; font: 11px/1.4 var(--mono); color: var(--dim); letter-spacing: 0.08em; text-transform: uppercase; }
.desc { margin: 0 0 12px; color: #c9c2ad; font-size: 13.5px; line-height: 1.75; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 5px; }
.tags li { font-size: 11.5px; padding: 2px 8px; background: var(--panel2); color: var(--ink); border: 1px solid var(--line); }
.tags li.t { color: var(--amber); border-color: var(--amber-d); }
.tags li.p { color: var(--cyan); border-color: #2c7d76; }
.v-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 10px; padding: 12px 16px 16px; }
.v-foot dl { margin: 0; display: grid; grid-template-columns: auto auto; gap: 1px 8px; font: 11px/1.5 var(--mono); color: var(--dim); }
.v-foot dt { font-family: var(--dot); }
.v-foot dd { margin: 0; color: var(--ink); }
.launch {
  display: grid; text-align: center; text-decoration: none; padding: 9px 16px; min-width: 120px;
  background: var(--amber); color: var(--navy); font: 700 15px/1.2 var(--body);
  box-shadow: 4px 4px 0 var(--amber-d); transition: transform 0.12s, box-shadow 0.12s, background 0.12s;
}
.launch span { font: 10px var(--mono); letter-spacing: 0.18em; }
.launch:hover { background: var(--ink); transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--amber-d); }
.launch:active { transform: translate(4px, 4px); box-shadow: 0 0 0; }
.empty { color: var(--dim); font-family: var(--dot); }

/* ---------- signal ---------- */
.sig-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line); background: var(--panel); }
.sig-grid article { padding: 20px 22px; border-left: 1px solid var(--line); }
.sig-grid article:first-child { border-left: 0; }
.sig-grid h3 { margin: 0 0 8px; font: 15px var(--dot); color: var(--amber); }
.sig-grid p { margin: 0; color: var(--dim); font-size: 13.5px; }
.mono { font-family: var(--mono); color: var(--red); }

/* ---------- footer ---------- */
.foot { margin-top: clamp(48px, 8vw, 96px); padding: 28px var(--gut) 40px; border-top: 2px solid var(--line); font: 12px var(--mono); color: var(--dim); text-align: center; letter-spacing: 0.06em; }
.eot { font: 14px var(--display); color: var(--amber); letter-spacing: 0.2em; margin: 0 0 8px; }
.cursor { animation: blink 0.9s steps(2) infinite; }
.foot a { color: var(--cyan); }

/* ---------- small screens ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); }
  .radar-wrap { width: min(320px, 84%); }
  .sig-grid { grid-template-columns: minmax(0, 1fr); }
  .sig-grid article { border-left: 0; border-top: 1px solid var(--line); }
  .sig-grid article:first-child { border-top: 0; }
}
@media (max-width: 560px) {
  body { font-size: 14px; }
  .sys, .mark small { display: none; }
  .clock { margin-left: auto; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats div:nth-child(3) { border-left: 0; }
  .stats div:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .stats dd { font-size: 22px; }
  .cta { width: 100%; justify-content: center; }
  .vessel { box-shadow: 5px 5px 0 var(--navy); }
  .v-foot { flex-wrap: wrap; }
  .launch { flex: 1 1 100%; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .title .w > i { transform: none; }
  .vessel { opacity: 1; transform: none; }
  #boot { display: none; }
}