/* PHASE QUIET — about page. A ship's incident log read on the HUD of the
   game: deep navy, thin teal frames, amber for what to do, and the flesh red
   of "it" used sparingly. Colours are the game's palette. */
:root {
  --void: #060c18; --hull: #101b2c; --panel: #1c2d40; --line: #2f4556; --dim: #426776;
  --steel: #679498; --text: #b3cfcd; --white: #f3edd8;
  --teal: #38b2aa; --mint: #8dead4; --amber: #ffcd8c; --gold: #e2b46c;
  --flesh: #864052; --red: #e76f5c; --rose: #c56270;
  --jp: 'Zen Kaku Gothic New', 'Hiragino Kaku Gothic ProN', sans-serif;
  --hud: 'Tiny5', 'DotGothic16', monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--void); }
body {
  margin: 0; color: var(--text); background: var(--void);
  font: 400 16px/1.95 var(--jp); letter-spacing: .03em;
  background-image:
    radial-gradient(1px 1px at 14% 22%, var(--steel) 98%, transparent),
    radial-gradient(1px 1px at 63% 9%, var(--dim) 98%, transparent),
    radial-gradient(1px 1px at 82% 61%, var(--steel) 98%, transparent),
    radial-gradient(1px 1px at 37% 79%, var(--dim) 98%, transparent);
  background-size: 480px 480px;
}
/* faint scanlines over everything, like the game's glass */
body::after { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 50;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, .14) 0 1px, transparent 1px 3px); }
img.pix { image-rendering: pixelated; image-rendering: crisp-edges; display: block; width: 100%; height: auto; }
a { color: var(--mint); }
figure { margin: 0; }
.wrap { width: min(1040px, 100% - 48px); margin: 0 auto; }
@media (max-width: 480px) { .wrap { width: calc(100% - 32px); } }

/* ---- section head: a log line with a stamp, the title under it ---- */
.log { display: flex; align-items: center; gap: 12px; font: 12px/1 var(--hud); letter-spacing: .14em; color: var(--steel); margin: 0 0 14px; }
.log b { font-weight: 400; color: var(--void); background: var(--teal); padding: 4px 7px 3px; }
.log::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--line), transparent); }
h2 { font: 700 clamp(23px, 3.6vw, 32px)/1.45 var(--jp); color: var(--white); margin: 0 0 22px; letter-spacing: .04em; }
h2 .hl { color: var(--amber); }
h3 { font: 700 17px/1.5 var(--jp); color: var(--white); margin: 0 0 6px; }
p { margin: 0 0 1em; }
section { padding: 76px 0; }
section.band { background: linear-gradient(var(--hull), rgba(16, 27, 44, .6)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

kbd { display: inline-block; min-width: 22px; padding: 1px 6px; margin: 0 2px 2px 0; text-align: center; font: 13px/1.5 var(--hud); color: var(--amber); background: var(--void); border: 1px solid var(--dim); }

/* ---- HUD frame: thin teal line with cut corners ---- */
.frame { position: relative; background: rgba(16, 27, 44, .82); border: 1px solid var(--line); padding: 20px 22px; }
.frame::before, .frame::after { content: ""; position: absolute; width: 10px; height: 10px; border: 2px solid var(--teal); }
.frame::before { left: -1px; top: -1px; border-right: 0; border-bottom: 0; }
.frame::after { right: -1px; bottom: -1px; border-left: 0; border-top: 0; }
.frame h3 { color: var(--mint); }
.frame p { font-size: 15px; margin: 0; }
.shot { border: 1px solid var(--dim); box-shadow: 0 0 0 4px var(--void), 0 0 0 5px var(--line), 0 20px 50px rgba(0, 0, 0, .6); background: var(--void); }
.cap { font-size: 12px; line-height: 1.7; color: var(--steel); margin-top: 12px; }

/* ---- buttons ---- */
.btn { display: inline-block; font: 700 15px/1 var(--jp); letter-spacing: .12em; text-decoration: none; padding: 16px 26px; color: var(--void); background: var(--amber); border: 1px solid var(--amber); }
.btn:hover { background: var(--white); border-color: var(--white); }
.btn.ghost { background: transparent; color: var(--mint); border-color: var(--teal); }
.btn.ghost:hover { background: rgba(56, 178, 170, .12); }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--mint); outline-offset: 4px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* ---- hero: title screen beside the title, a sonar ring behind ---- */
.hero { padding: 64px 0 70px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 52px; align-items: center; }
.logo { margin: 0; font: 400 clamp(54px, 9vw, 96px)/.95 var(--hud); color: var(--white); letter-spacing: .04em; }
.logo span { display: block; }
.tag { font: 13px var(--hud); letter-spacing: .3em; color: var(--steel); margin: 18px 0 6px; }
.whisper { font: 700 22px var(--jp); color: var(--amber); margin: 0 0 22px; letter-spacing: .14em; }
.hero .lead { font-size: 16.5px; }
.hero-art { position: relative; width: min(384px, 100%); justify-self: center; }
.hero-art::before { content: ""; position: absolute; left: 50%; top: 46%; width: 150%; aspect-ratio: 1; transform: translate(-50%, -50%); border-radius: 50%; z-index: -1;
  background: repeating-radial-gradient(circle, transparent 0 46px, rgba(56, 178, 170, .13) 46px 47px); -webkit-mask: radial-gradient(circle, #000 30%, transparent 70%); mask: radial-gradient(circle, #000 30%, transparent 70%); }
.hero-art .cap { text-align: center; }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; } .hero-art { width: min(300px, 82%); } }

/* ---- layouts ---- */
.split { display: grid; grid-template-columns: 300px 1fr; gap: 44px; align-items: start; }
.split.rev { grid-template-columns: 1fr 300px; }
.split.rev > figure { order: 2; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 880px) { .split, .split.rev { grid-template-columns: 1fr; } .split > figure, .split.rev > figure { order: 0; width: min(300px, 82%); margin: 0 auto; } .grid3 { grid-template-columns: 1fr; } }
@media (max-width: 680px) { .grid2 { grid-template-columns: 1fr; } }

/* ---- noise meter: what makes a sound and what doesn't ---- */
.noise { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.noise li { display: grid; grid-template-columns: 110px 1fr; gap: 16px; align-items: center; font-size: 15px; }
.noise .bar { height: 10px; border: 1px solid var(--line); background: var(--void); position: relative; }
.noise .bar i { position: absolute; inset: 1px auto 1px 1px; background: var(--teal); }
.noise .bar.mid i { background: var(--gold); }
.noise .bar.high i { background: var(--red); }
.noise .zero { font: 12px var(--hud); letter-spacing: .14em; color: var(--steel); }
@media (max-width: 520px) { .noise li { grid-template-columns: 1fr; gap: 4px; } }

/* ---- keys table ---- */
.keys { width: 100%; border-collapse: collapse; font-size: 15px; }
.keys th { text-align: left; font-weight: 400; color: var(--steel); padding: 9px 14px 9px 0; white-space: nowrap; vertical-align: top; width: 8.5em; }
.keys td { padding: 9px 0; border-bottom: 1px solid rgba(47, 69, 86, .6); }

/* ---- the four decks ---- */
.decks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: d; }
.deck { padding: 18px 18px 20px; }
.deck .no { font: 30px/1 var(--hud); color: var(--teal); display: block; margin-bottom: 10px; }
.deck h3 { font-size: 17px; }
.deck dl { margin: 10px 0 0; font-size: 14px; line-height: 1.7; }
.deck dt { font: 11px var(--hud); letter-spacing: .14em; color: var(--steel); margin-top: 8px; }
.deck dd { margin: 0; }
.deck.final { border-color: rgba(231, 111, 92, .55); }
.deck.final::before, .deck.final::after { border-color: var(--red); }
.deck.final .no { color: var(--red); }
@media (max-width: 980px) { .decks { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .decks { grid-template-columns: 1fr; } }

/* ---- laser sequence ---- */
.seq { list-style: none; margin: 18px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.seq li { font-size: 14px; padding: 6px 12px; border: 1px solid var(--line); background: var(--void); }
.seq li b { font: 400 11px var(--hud); letter-spacing: .1em; color: var(--red); margin-right: 6px; }

/* ---- "it" note: a red-lined warning card ---- */
.warn { border: 1px solid rgba(231, 111, 92, .5); background: linear-gradient(rgba(41, 27, 50, .7), rgba(16, 27, 44, .7)); padding: 18px 22px; margin-top: 22px; }
.warn .t { font: 12px var(--hud); letter-spacing: .2em; color: var(--red); margin: 0 0 6px; }
.warn p { margin: 0; font-size: 15px; }

.tips { list-style: none; margin: 0; padding: 0; }
.tips li { position: relative; padding: 12px 0 12px 30px; border-bottom: 1px solid rgba(47, 69, 86, .6); }
.tips li::before { content: ">"; position: absolute; left: 4px; top: 12px; font: 15px/31.2px var(--hud); color: var(--teal); }   /* line box = 16px × 1.95 */
.faq dt { color: var(--amber); margin-top: 20px; font-weight: 700; }
.faq dd { margin: 4px 0 0; }

.final-cta { text-align: center; padding: 100px 0 90px; }
.final-cta .log { justify-content: center; }
.final-cta .log::after { display: none; }
.final-cta .cta-row { justify-content: center; }
.games-nav { margin-top: 26px; font-size: 14px; }
.games-nav a { color: var(--steel); }
footer { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 13px; color: var(--steel); }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer a { color: var(--steel); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }