/* 실행기 화면. 옛 휴대용 게임기 LCD 의 회녹색을 바탕으로 한 차분한 톤.
   눈에 띄는 요소는 하나: 묶음 하나가 칸 하나인 설치 격자. */
:root {
  --paper: #e8ebe2;
  --panel: #f2f4ed;
  --ink: #18201d;
  --dim: #5d6962;
  --line: #c8cfc1;
  --moss: #3d5c47;
  --on-moss: #f2f4ed;
  --cell: #cdd4c5;
  --warn: #93530f;
  --sans: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Malgun Gothic", sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141918;
    --panel: #1b2220;
    --ink: #e3e8df;
    --dim: #8b9790;
    --line: #2b3531;
    --moss: #a8bf8a;
    --on-moss: #141918;
    --cell: #29332f;
    --warn: #e2aa63;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 var(--sans);
  word-break: keep-all;
  overflow-wrap: anywhere;
  -webkit-tap-highlight-color: transparent;
}

.launcher {
  max-width: 560px;
  margin: 0 auto;
  padding: calc(20px + env(safe-area-inset-top)) calc(20px + env(safe-area-inset-right))
           calc(40px + env(safe-area-inset-bottom)) calc(20px + env(safe-area-inset-left));
}

/* 머리 */
.top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.mark { font: 600 12px/1 var(--mono); letter-spacing: .34em; }
.net { font: 12px/1 var(--mono); color: var(--dim); }
.net.off { color: var(--warn); }

/* 지금 상태: 이 화면의 한 가지 할 일 */
.now { padding: 44px 0 40px; }
.logo { display: block; width: min(250px, 68%); height: auto; margin: 0 0 26px -6px; }
.kicker { margin: 0 0 14px; font: 13px/1.4 var(--mono); color: var(--dim); }
.now h1 { margin: 0; font-size: clamp(27px, 7.4vw, 36px); line-height: 1.28; font-weight: 800; letter-spacing: -.025em; }
.sub { margin: 14px 0 0; color: var(--dim); max-width: 32em; }
.sub:empty { display: none; }
.now .btn { margin-top: 28px; }

/* 버튼 */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 0 18px;
  border: 1px solid var(--ink); border-radius: 4px;
  background: transparent; color: var(--ink);
  font: 600 15px/1.2 var(--sans); cursor: pointer; text-decoration: none;
  transition: background-color .12s, color .12s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.primary { min-height: 54px; padding: 0 28px; font-size: 17px; background: var(--moss); border-color: var(--moss); color: var(--on-moss); }
.btn.primary:hover { filter: brightness(1.08); background: var(--moss); color: var(--on-moss); }
.btn.quiet { border-color: transparent; color: var(--dim); padding: 0 10px; font-weight: 500; text-decoration: underline; text-underline-offset: 3px; }
.btn.quiet:hover { background: transparent; color: var(--ink); }
.btn:disabled { opacity: .45; cursor: default; pointer-events: none; }
.btn:focus-visible, summary:focus-visible { outline: 2px solid var(--moss); outline-offset: 3px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }

/* 안내 */
.notice { margin: 0 0 28px; padding: 16px 18px; border-left: 3px solid var(--warn); background: var(--panel); }
.notice strong { display: block; }
.notice p { margin: 6px 0 0; color: var(--dim); font-size: 15px; }

/* 구획 */
.panel { padding: 26px 0 30px; border-top: 1px solid var(--line); }
.panel-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.panel h2 { margin: 0; font-size: 17px; font-weight: 700; }
.figure { font: 12px/1.4 var(--mono); color: var(--dim); font-variant-numeric: tabular-nums; text-align: right; }
.body { margin: 12px 0 0; }
.fine { margin: 16px 0 0; font-size: 13px; line-height: 1.6; color: var(--dim); }

/* 묶음 격자: 칸 하나 = 묶음 하나. 설치된 칸만 채워진다. */
.grid { display: grid; grid-template-columns: repeat(auto-fill, 9px); gap: 3px; margin-top: 18px; min-height: 9px; }
.grid i { width: 9px; height: 9px; background: var(--cell); }
.grid i.on { background: var(--moss); }
@media (prefers-reduced-motion: no-preference) { .grid i { transition: background-color .25s; } }

.progress { margin: 14px 0 0; font: 13px/1.5 var(--mono); font-variant-numeric: tabular-nums; }
.error { margin: 14px 0 0; padding: 12px 14px; border: 1px solid var(--warn); color: var(--warn); font-size: 15px; }
.steps { margin: 18px 0 0; padding-left: 1.3em; color: var(--dim); font-size: 15px; }
.steps li + li { margin-top: 6px; }
.steps b { color: var(--ink); font-family: var(--mono); font-weight: 600; font-size: 14px; }

/* 접는 안내 */
.more { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { padding: 16px 0; cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font: 400 18px/1 var(--mono); color: var(--dim); }
details[open] summary::after { content: "−"; }
details > :not(summary) { margin: 0 0 16px; color: var(--dim); font-size: 15px; }
details ol { padding-left: 1.3em; }
details li + li { margin-top: 6px; }
.notes { font: 13px/1.7 var(--sans); white-space: pre-wrap; max-height: 60vh; overflow: auto; }

footer { padding-top: 28px; color: var(--dim); font-size: 13px; line-height: 1.6; }
footer p { margin: 0; }
footer .fine { margin-top: 6px; font-family: var(--mono); font-size: 11px; }

/* 확인 창 */
dialog { width: min(420px, calc(100vw - 40px)); padding: 24px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); color: var(--ink); }
dialog::backdrop { background: rgb(0 0 0 / .55); }
dialog h2 { margin: 0; font-size: 19px; }
dialog p { margin: 10px 0 0; color: var(--dim); }
dialog .actions { justify-content: flex-end; }

/* 게임 화면 */
html.playing, html.playing body { height: 100%; overflow: hidden; background: #000; }
html.playing .launcher { display: none; }
.game { position: fixed; inset: 0; z-index: 10; background: #000; }
.game iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: #000; }
.leave {
  position: absolute; z-index: 2;
  top: calc(6px + env(safe-area-inset-top)); left: calc(6px + env(safe-area-inset-left));
  min-height: 30px; padding: 0 10px;
  border: 1px solid rgb(255 255 255 / .28); border-radius: 4px;
  background: rgb(0 0 0 / .4); color: rgb(255 255 255 / .75);
  font: 500 12px/1 var(--sans); cursor: pointer; opacity: .55;
}
.leave:hover, .leave:focus-visible { opacity: 1; }
.leave-ask {
  position: absolute; z-index: 3; left: 50%; top: calc(16px + env(safe-area-inset-top)); transform: translateX(-50%);
  width: min(440px, calc(100vw - 32px)); padding: 16px 18px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  background: #1b2220; color: #e3e8df; border: 1px solid #2b3531; border-radius: 6px;
  --ink: #e3e8df; --paper: #141918; --moss: #a8bf8a; --on-moss: #141918;
}
.leave-ask p { flex: 1 1 100%; margin: 0 0 4px; font-size: 15px; }
.leave-ask .btn { min-height: 42px; font-size: 15px; padding: 0 18px; }