/* 夜ノ扉 — site styles
   Concept: a dark hallway; the only light is what leaks under a door. One accent (the gap light), one warning red. */
:root{
  --bg:#08090a;
  --bg-2:#111615;
  --line:#3b4643;        /* borders: visible but still cold */
  --line-soft:#2a3330;
  --ink:#e6e3da;
  --ink-2:#a9aea8;
  --ink-3:#737a76;
  --glow:#cfe6d8;        /* light under the door */
  --lamp:#d9c48e;        /* warm paper / labels */
  --red:#b2362b;
  --f-display:"Shippori Mincho B1","Hiragino Mincho ProN","Yu Mincho",serif;
  --f-body:"Zen Kaku Gothic New","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.8;
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
a{color:var(--glow)}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--glow);outline-offset:3px}
.wrap{max-width:960px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}

/* header */
.top{border-bottom:1px solid var(--line-soft)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.brand svg{width:26px;height:34px;flex:none}
.brand b{font-family:var(--f-display);font-weight:800;font-size:22px;letter-spacing:.12em}
.brand small{display:block;font-size:11px;color:var(--ink-3);letter-spacing:.06em;line-height:1.2}
.top nav{display:flex;gap:18px;font-size:14px}
.top nav a{color:var(--ink-2);text-decoration:none}
.top nav a:hover{color:var(--ink)}

/* hero: the door */
.hero{position:relative;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:40px;padding-block:56px 64px}
.hero h1{margin:0;font-family:var(--f-display);font-weight:800;font-size:clamp(56px,11vw,104px);line-height:1.05;letter-spacing:.14em;text-wrap:balance}
.hero .kind{margin:14px 0 0;font-size:clamp(17px,2.6vw,21px);font-weight:700;color:var(--glow);letter-spacing:.08em}
.hero .lede{margin:18px 0 0;max-width:30em;color:var(--ink-2)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0;padding:0;list-style:none}
.chips li{font-size:13px;font-weight:700;border:1px solid var(--line);color:#c4c9c3!important;background:var(--bg-2);border-radius:999px;padding:3px 12px;color:var(--ink-2)}
.door{position:relative;justify-self:center;width:min(240px,60vw);aspect-ratio:3/5;background:linear-gradient(90deg,#141818,#1b2120 35%,#181d1c 70%,#101413);
  border:3px solid #2a3230;border-bottom:none;box-shadow:0 0 0 12px #0c0f0e,0 30px 80px rgba(0,0,0,.6)}
.door::before{content:"";position:absolute;inset:8% 14% 58%;border:1px solid rgba(255,255,255,.04)}
.door::after{content:"";position:absolute;inset:50% 14% 8%;border:1px solid rgba(255,255,255,.04)}
.door .knob{position:absolute;right:10%;top:54%;width:9px;height:24px;border-radius:3px;background:#59605c}
.door .gap{position:absolute;left:0;right:0;bottom:-6px;height:6px;background:var(--glow);box-shadow:0 0 22px 6px rgba(207,230,216,.28);animation:flick 8s infinite}
.door .gap i{position:absolute;top:0;bottom:0;width:12px;background:#030404;left:calc(50% - 16px);animation:sway 3.4s ease-in-out infinite}
.door .gap i+i{left:calc(50% + 4px);animation-delay:-.6s}
.floor-glow{position:absolute;left:50%;bottom:-40px;width:min(520px,100%);height:120px;translate:-50% 0;background:radial-gradient(ellipse at 50% 0,rgba(207,230,216,.12),transparent 70%);pointer-events:none}
@keyframes flick{0%,41%,43%,74%,76%,100%{opacity:1}42%{opacity:.45}75%{opacity:.8}}
@keyframes sway{0%,100%{transform:translateX(-3px)}50%{transform:translateX(3px)}}

/* sections */
section{border-top:1px solid var(--line-soft);box-shadow:0 -1px 0 rgba(207,230,216,.04)}
section .wrap{padding-block:52px}
.eyebrow{margin:0 0 6px;font-size:12px;font-weight:700;letter-spacing:.24em;color:var(--lamp)}
h2{margin:0 0 22px;font-family:var(--f-display);font-weight:800;font-size:clamp(26px,4.4vw,34px);line-height:1.3;letter-spacing:.06em;text-wrap:balance}

/* works */
.works{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.work{display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(207,230,216,.05),0 10px 30px rgba(0,0,0,.45);border-radius:14px;overflow:hidden;min-width:0}
.work .thumb{display:block;aspect-ratio:1200/630;background:#000;border-bottom:1px solid var(--line)}
.work .thumb img{width:100%;height:100%;object-fit:cover}
.work .body{display:flex;flex-direction:column;gap:10px;padding:18px 18px 20px;flex:1}
.work h3{margin:0;font-family:var(--f-display);font-weight:800;font-size:24px;letter-spacing:.06em}
.work p{margin:0;color:var(--ink-2);font-size:15px}
.meta{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none}
.meta li{font-size:12px;font-weight:700;color:var(--ink-2);background:#1a201f;border:1px solid var(--line-soft);border-radius:6px;padding:2px 8px}
.meta li.warn{color:#f0b2a8;background:#2a1311}
.play{margin-top:auto;display:flex;align-items:center;justify-content:center;gap:8px;min-height:50px;border-radius:12px;background:var(--glow);color:#0b100d;
  font-weight:900;font-size:17px;letter-spacing:.06em;text-decoration:none;box-shadow:0 0 0 1px rgba(255,255,255,.2) inset,0 8px 30px rgba(207,230,216,.18)}
.play:hover{filter:brightness(1.06)}
.work.soon{border-style:dashed;border-color:#4a5652;align-items:center;justify-content:center;text-align:center;min-height:240px;padding:24px}
.work.soon b{font-family:var(--f-display);font-size:20px;letter-spacing:.1em}
.work.soon p{font-size:14px}

/* trust points */
.points{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:0;padding:0;list-style:none}
.points li{background:var(--bg-2);border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(207,230,216,.05),0 8px 24px rgba(0,0,0,.4);border-radius:12px;padding:16px;min-width:0}
.points b{display:block;font-size:16px;margin-bottom:4px}
.points span{font-size:14px;color:var(--ink-2);line-height:1.7}
.points svg{width:26px;height:26px;color:var(--glow);margin-bottom:8px}

.notes{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.notes h3{margin:0 0 8px;font-size:17px}
.notes ul{margin:0;padding-left:1.2em;color:var(--ink-2);font-size:15px}
.notes li+li{margin-top:4px}
.caution{border-left:3px solid var(--red);padding-left:16px}

/* footer */
footer{border-top:1px solid var(--line-soft);color:var(--ink-3);font-size:13px}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-block:28px}
footer nav{display:flex;gap:18px}
footer a{color:var(--ink-2);text-decoration:none}
footer a:hover{color:var(--ink)}

/* legal pages */
.doc{max-width:760px;margin:0 auto;padding-block:40px 64px}
.doc h2{font-size:30px;margin:0 0 6px}
.doc h3{margin:28px 0 6px;font-size:17px}
.doc p,.doc ol{color:var(--ink-2);font-size:15px}
.doc ol{padding-left:1.5em}
.doc .doc-d{font-size:13px;color:var(--ink-3)}
.doc-t{display:block;overflow-x:auto;border-collapse:collapse;font-size:13px;margin:8px 0 12px}
.doc-t th,.doc-t td{border:1px solid var(--line);padding:8px;vertical-align:top;text-align:left}
.doc-t th{background:var(--bg-2);color:var(--ink)}

@media (max-width:760px){
  .hero .wrap{grid-template-columns:1fr;gap:36px;padding-block:40px 56px}
  .door{width:min(180px,48vw);order:-1}
  .top nav{display:none}
  .works,.notes{grid-template-columns:1fr}
  .points{grid-template-columns:1fr 1fr}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important}}