@font-face { font-family: RGNY; src: url(img/NewYork.ttf); }
:root {
  --night: #0A0B0E; --night2: #121318; --ink: #ECE6DA; --ink2: rgba(236,230,218,.64); --ink3: rgba(236,230,218,.40); --hair: rgba(236,230,218,.12); --brass: #C9A96A;
  --sans: -apple-system, "SF Pro Text", "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;
  --serif: RGNY, "New York", ui-serif, Georgia, serif;
  --pw: 402px; --ph: 874px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; background: var(--night); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; overflow: hidden; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
.app { display: grid; grid-template-columns: 268px 1fr 300px; height: 100%; }

/* 一覧 */
.toc { border-right: .7px solid var(--hair); padding: 26px 18px 18px 22px; display: flex; flex-direction: column; min-height: 0; }
.brand { display: flex; align-items: center; gap: 10px; font: 500 11px var(--sans); letter-spacing: .34em; }
.brand img { width: 22px; height: 22px; }
.what { font: 300 13px/1.6 var(--sans); color: var(--ink); margin: 18px 0 16px; }
.what span { color: var(--ink3); font-size: 11.5px; }
.ed { display: inline-flex; border: .7px solid rgba(236,230,218,.2); border-radius: 999px; padding: 2px; margin-bottom: 14px; align-self: flex-start; }
.ed button { font: 500 10.5px var(--sans); letter-spacing: .14em; padding: 7px 12px; border-radius: 999px; color: var(--ink2); }
.ed button.on { background: var(--ink); color: var(--night); }
nav { overflow-y: auto; flex: 1; min-height: 0; padding-right: 6px; scrollbar-width: thin; }
nav h3 { font: 500 10px var(--sans); letter-spacing: .26em; color: var(--brass); margin: 18px 0 6px; text-transform: uppercase; }
nav a { display: flex; justify-content: space-between; gap: 8px; padding: 7px 10px; border-radius: 8px; font: 300 13px var(--sans); color: var(--ink2); }
nav a:hover { background: rgba(236,230,218,.04); color: var(--ink); }
nav a.on { background: rgba(236,230,218,.07); color: var(--ink); }
nav a i { font-style: normal; font: 400 10px var(--sans); color: var(--ink3); letter-spacing: .06em; padding-top: 2px; }
.more { border-top: .7px solid var(--hair); margin-top: 12px; padding-top: 12px; display: grid; gap: 6px; }
.more a { font: 300 12px var(--sans); color: var(--ink2); }
.more a:hover { color: var(--ink); }

/* 端末 */
.stage { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; min-height: 0; padding: 18px; }
.phone { position: relative; width: calc(var(--pw) * var(--k, 1) + 22px); height: calc(var(--ph) * var(--k, 1) + 22px); border-radius: calc(66px * var(--k, 1)); padding: 11px;
  background: linear-gradient(160deg,#3b3d42,#1a1b1e 40%,#2a2c30); box-shadow: 0 40px 120px rgba(0,0,0,.8), 0 0 0 1px rgba(236,230,218,.08), inset 0 1px 0 rgba(255,255,255,.16); }
.glass { position: relative; width: 100%; height: 100%; border-radius: calc(56px * var(--k, 1)); overflow: hidden; background: #000; isolation: isolate; }
.scr { position: absolute; left: 0; top: 0; width: var(--pw); height: var(--ph); transform-origin: 0 0; overflow: hidden; background: #000; }
.scr > .base, .scr .layer img { position: absolute; left: 0; top: 0; width: var(--pw); height: var(--ph); display: block; user-select: none; -webkit-user-drag: none; pointer-events: none; }
.scr .sc { position: absolute; left: 0; width: var(--pw); overflow-y: auto; overflow-x: hidden; scrollbar-width: none; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; }
.scr .sc::-webkit-scrollbar { display: none; }
.scr .sc .ct { position: relative; width: var(--pw); }
.scr .sc .ct img { display: block; width: var(--pw); pointer-events: none; user-select: none; -webkit-user-drag: none; }
.scr .layer { position: absolute; inset: 0; pointer-events: none; }
.scr video { position: absolute; inset: 0; width: var(--pw); height: var(--ph); object-fit: cover; background: #000; }
.hs { position: absolute; border-radius: 10px; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.hs:active { background: rgba(236,230,218,.08); }
.hints .hs { box-shadow: 0 0 0 1.5px rgba(201,169,106,.95), 0 0 0 5px rgba(201,169,106,.18); background: rgba(201,169,106,.08); }
.flash .hs { animation: flash 1.1s ease-out; }
@keyframes flash { 0% { box-shadow: 0 0 0 1.5px rgba(201,169,106,0); background: transparent } 20% { box-shadow: 0 0 0 1.5px rgba(201,169,106,.95), 0 0 0 5px rgba(201,169,106,.2); background: rgba(201,169,106,.1) } 100% { box-shadow: 0 0 0 1.5px rgba(201,169,106,0); background: transparent } }
.ripple { position: absolute; width: 44px; height: 44px; margin: -22px 0 0 -22px; border-radius: 50%; border: 1.4px solid rgba(236,230,218,.9); pointer-events: none; animation: rip .5s ease-out forwards; z-index: 50; }
@keyframes rip { from { transform: scale(.5); opacity: .9 } to { transform: scale(1.6); opacity: 0 } }
.toast { position: absolute; left: 50%; top: 64px; transform: translate(-50%, -8px); z-index: 60; background: rgba(18,19,24,.92); border: .7px solid rgba(236,230,218,.16); color: var(--ink); font: 400 12.5px var(--sans);
  padding: 10px 16px; border-radius: 999px; opacity: 0; transition: opacity .25s, transform .25s; pointer-events: none; white-space: nowrap; max-width: 92%; overflow: hidden; text-overflow: ellipsis; }
.toast.on { opacity: 1; transform: translate(-50%, 0); }
.bar { display: flex; gap: 8px; }
.bar button { height: 36px; padding: 0 14px; border-radius: 999px; border: .7px solid rgba(236,230,218,.2); font: 400 12.5px var(--sans); color: var(--ink2); }
.bar button:hover { color: var(--ink); border-color: rgba(236,230,218,.4); }
.bar button[aria-pressed="true"] { background: var(--ink); color: var(--night); border-color: var(--ink); }
.only-narrow { display: none; }

/* 説明 */
.info { border-left: .7px solid var(--hair); padding: 30px 24px; overflow-y: auto; }
.label { font: 500 10px var(--sans); letter-spacing: .26em; color: var(--brass); text-transform: uppercase; }
.info h1 { font: 300 22px/1.45 var(--sans); letter-spacing: .04em; margin: 10px 0 10px; }
.info p { font: 300 13.5px/1.75 var(--sans); color: var(--ink2); }
.info ul { list-style: none; margin-top: 10px; }
.info li { font: 300 13px/1.5 var(--sans); color: var(--ink2); padding: 8px 0; border-top: .7px solid var(--hair); display: flex; justify-content: space-between; gap: 10px; cursor: pointer; }
.info li:hover { color: var(--ink); }
.info li i { font-style: normal; font-size: 11px; color: var(--ink3); white-space: nowrap; }
.note { margin-top: 26px; font: 300 11.5px/1.75 var(--sans); color: var(--ink3); border-top: .7px solid var(--hair); padding-top: 14px; }

/* 狭い画面：端末だけ。一覧は上から */
@media (max-width: 1080px) { .app { grid-template-columns: 240px 1fr; } .info { display: none; } }
@media (max-width: 760px) {
  .app { display: block; }
  .toc { position: fixed; inset: 0; z-index: 100; background: rgba(10,11,14,.97); transform: translateY(100%); transition: transform .35s cubic-bezier(.2,.9,.25,1); border: 0; padding-top: 40px; }
  .toc.open { transform: none; }
  .stage { height: 100%; padding: 0; gap: 0; justify-content: flex-start; }
  .phone { width: 100vw; height: calc(100% - 58px); border-radius: 0; padding: 0; background: #000; box-shadow: none; }
  .glass { border-radius: 0; }
  .bar { height: 58px; align-items: center; padding: 0 12px; padding-bottom: env(safe-area-inset-bottom); }
  .only-narrow { display: inline-block; }
}