/* 帰宅してコソッと — about page. Read as Saki's leaving-work manual on the game's
   green terminal: phosphor green on near-black, the status colours of the game
   (normal / caution / alert) and the yellow objective arrow. */
:root {
  --bg: #06120a; --bg2: #0a1a10; --panel: #0c1a11; --line: #2f5d33; --dim: #4d8b52; --mid: #5fae64;
  --green: #9fe89f; --pale: #cfe9c8; --white: #e8f6e2; --yellow: #ffd84d; --amber: #ffaa30; --red: #ff5050;
  --skin: #e8b890; --blue: #3a6ea8;
  --jp: 'DotGothic16', 'Hiragino Kaku Gothic ProN', monospace;
  --en: 'Press Start 2P', monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; color: var(--pale); background: var(--bg); font: 16px/1.95 var(--jp); letter-spacing: .03em; }
/* faint scanlines, as on the in-game panels */
body::after { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 50; background: repeating-linear-gradient(0deg, rgba(0, 0, 0, .18) 0 1px, transparent 1px 3px); }
img { display: block; width: 100%; height: auto; image-rendering: pixelated; }
a { color: var(--green); }
figure { margin: 0; }
.wrap { width: min(1040px, 100% - 44px); margin: 0 auto; }
@media (max-width: 480px) { .wrap { width: calc(100% - 32px); } }

/* section head: a terminal prompt line, then the title */
.prompt { font: 10px/1.6 var(--en); letter-spacing: .2em; color: var(--dim); margin: 0 0 14px; }
.prompt::before { content: "> "; color: var(--green); }
h2 { font: 400 clamp(23px, 3.8vw, 32px)/1.45 var(--jp); color: var(--white); margin: 0 0 22px; }
h2 .hl { color: var(--yellow); }
h3 { font: 400 18px/1.5 var(--jp); color: var(--green); margin: 0 0 6px; }
p { margin: 0 0 1em; }
section { padding: 76px 0; }
section.band { background: var(--bg2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
b, strong { color: var(--yellow); font-weight: 400; }

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

/* panels: the game's dialog box (thin green frame on dark) */
.panel { background: var(--panel); border: 1px solid var(--line); box-shadow: 0 0 0 1px var(--bg), 0 12px 30px rgba(0, 0, 0, .45); padding: 20px 22px; }
.panel p { margin: 0; font-size: 15px; }
.shot { border: 1px solid var(--line); box-shadow: 0 0 0 4px var(--bg), 0 0 0 5px var(--line), 0 18px 44px rgba(0, 0, 0, .55); background: var(--bg); }
.cap { font-size: 12.5px; line-height: 1.7; color: var(--mid); margin-top: 12px; }

/* buttons: the game's framed buttons */
.btn { display: inline-block; font: 16px/1 var(--jp); letter-spacing: .1em; text-decoration: none; padding: 16px 26px; color: var(--bg); background: var(--green); border: 1px solid var(--green); }
.btn:hover { background: var(--white); border-color: var(--white); }
.btn.ghost { color: var(--green); background: transparent; }
.btn.ghost:hover { background: rgba(159, 232, 159, .1); }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--yellow); outline-offset: 4px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* ---- hero ---- */
.hero { padding: 60px 0 70px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }
.eyebrow { font: 10px var(--en); letter-spacing: .3em; color: var(--mid); margin: 0 0 16px; }
.logo { margin: 0; font: 400 clamp(30px, 5vw, 50px)/1.25 var(--en); color: var(--white); text-shadow: 0 0 18px rgba(159, 232, 159, .35); }
.logo span { display: block; }
.logo .jp { font: 400 clamp(20px, 2.6vw, 26px)/1.4 var(--jp); color: var(--green); margin-top: 14px; letter-spacing: .14em; text-shadow: none; }
.clock { display: inline-flex; align-items: center; gap: 12px; margin: 22px 0 10px; font: 13px var(--en); color: var(--green); }
.clock b { font: 22px var(--en); color: var(--yellow); }
.hero .lead { font-size: 17px; color: var(--white); }
.hero-art { width: min(340px, 100%); justify-self: 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; }
.moves { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.move .tag { display: inline-block; font: 9px var(--en); letter-spacing: .12em; padding: 4px 6px 3px; margin-bottom: 10px; color: var(--bg); background: var(--green); }
.move.loud .tag { background: var(--amber); }
.move .keys { display: block; margin-top: 10px; font-size: 13px; color: var(--mid); }
@media (max-width: 960px) { .moves { grid-template-columns: 1fr 1fr; } }
@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; } }
@media (max-width: 520px) { .moves { grid-template-columns: 1fr; } }

/* ---- the three rules ---- */
.rules { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; counter-reset: r; }
.rules li { counter-increment: r; display: grid; grid-template-columns: 70px 1fr; gap: 14px; align-items: baseline; padding: 14px 18px; background: var(--panel); border: 1px solid var(--line); }
.rules li::before { content: "鉄則" counter(r); font: 13px var(--jp); color: var(--yellow); }
.rules b { color: var(--white); }

/* ---- status: normal / caution / alert ---- */
.status { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 30px; }
.st { padding: 16px 18px; border: 1px solid var(--line); background: var(--panel); border-top: 4px solid var(--c); }
.st .badge { display: inline-block; font: 13px/1 var(--jp); color: var(--bg); background: var(--c); padding: 5px 9px; margin-bottom: 10px; }
.st p { font-size: 14.5px; margin: 0; line-height: 1.8; }
.st.n { --c: var(--green); } .st.c { --c: var(--amber); } .st.a { --c: var(--red); }
@media (max-width: 760px) { .status { grid-template-columns: 1fr; } }

/* ---- floors ---- */
.floors { display: grid; gap: 30px; }
.floor { display: grid; grid-template-columns: 240px 1fr; gap: 32px; align-items: start; }
.floor .no { font: 11px var(--en); letter-spacing: .14em; color: var(--yellow); }
.floor h3 { font-size: 21px; color: var(--white); margin: 8px 0 10px; }
.floor .goal { display: inline-block; font-size: 14px; color: var(--bg); background: var(--yellow); padding: 3px 10px; margin-bottom: 12px; }
.floor .goal::before { content: "▶ "; }
.saki { border-left: 0; margin: 14px 0 0; padding: 12px 16px; background: var(--panel); border: 1px dashed var(--line); font-size: 14.5px; color: var(--green); }
.saki cite { display: block; font-style: normal; font-size: 12px; color: var(--mid); margin-bottom: 4px; }
@media (max-width: 760px) { .floor { grid-template-columns: 1fr; } .floor > figure { width: min(260px, 72%); } }

/* ---- caught lines ---- */
.lines { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.lines li { padding: 12px 16px; background: #1a0b0b; border: 1px solid #5a2020; color: #f2d0d0; font-size: 15px; }
.lines li span { display: block; font-size: 12px; color: #e88; margin-bottom: 2px; }
.stamp { display: inline-block; font: 20px var(--jp); color: var(--red); border: 3px double var(--red); padding: 4px 14px; transform: rotate(-5deg); margin: 6px 0 18px; letter-spacing: .2em; }

/* ---- ranks ---- */
.ranks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.rk { text-align: center; padding: 16px 10px; background: var(--panel); border: 1px solid var(--line); }
.rk b { display: block; font: 26px var(--en); color: var(--yellow); margin-bottom: 10px; }
.rk span { font-size: 13.5px; line-height: 1.7; display: block; }
@media (max-width: 760px) { .ranks { grid-template-columns: 1fr 1fr; } }
.diffs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.diffs .panel h3 { font: 12px var(--en); letter-spacing: .14em; color: var(--yellow); margin-bottom: 8px; }
@media (max-width: 760px) { .diffs { grid-template-columns: 1fr; } }

.tips { list-style: none; margin: 0; padding: 0; }
.tips li { position: relative; padding: 12px 0 12px 28px; border-bottom: 1px dashed var(--line); }
.tips li::before { content: ">"; position: absolute; left: 4px; top: 12px; font: 16px/31.2px var(--jp); color: var(--yellow); }   /* line box = 16px × 1.95 */
.faq dt { color: var(--yellow); margin-top: 20px; }
.faq dd { margin: 4px 0 0; }

.final { text-align: center; padding: 96px 0 90px; }
.final .cta-row { justify-content: center; }
.games-nav { margin-top: 26px; font-size: 14px; }
.games-nav a { color: var(--mid); }
footer { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 13px; color: var(--mid); }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer a { color: var(--mid); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }