/* games 공통 스타일 — 모든 게임이 같은 바탕·글꼴·버튼·이전 버튼·연주 화면 단추·일시정지 창을 씀
   각 게임은 이 파일을 먼저 불러오고, 자기 style.css에는 그 게임만의 것만 둠
   색: 깊은 남보라 밤하늘 + 4색(로즈·앰버·민트·아이리스)  글꼴: Unbounded(워드마크·숫자) + Pretendard(본문) */
:root {
  --sky: #1B1446;
  --abyss: #0C0926;
  --ink: #F6F2FF;
  --mute: #ABA3D9;
  --faint: rgba(246, 242, 255, 0.1);
  --line: rgba(246, 242, 255, 0.16);
  --l0: #FF6F91;
  --l1: #FFB547;
  --l2: #3EE6C8;
  --l3: #8F7BFF;
  --spectrum: linear-gradient(90deg, var(--l0), var(--l1), var(--l2), var(--l3));
  --display: "Unbounded", "Pretendard Variable", system-ui, sans-serif;
  --ui: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", system-ui, sans-serif;
  --r-lg: 28px;
  --r-md: 16px;
  --accent: var(--l2);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
html { background: var(--abyss); }
body {
  background:
    radial-gradient(120% 70% at 50% -10%, #3A2A8C 0%, transparent 60%),
    radial-gradient(80% 50% at 100% 100%, rgba(62, 230, 200, 0.10) 0%, transparent 70%),
    radial-gradient(70% 50% at 0% 100%, rgba(255, 111, 145, 0.10) 0%, transparent 70%),
    linear-gradient(180deg, var(--sky), var(--abyss));
  background-attachment: fixed;
  color: var(--ink);
  font: 16px/1.55 var(--ui);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}
/* 연주 중에는 화면이 밀리거나 당겨지지 않게 */
body[data-screen="play"], body[data-screen="game"] { overflow: hidden; overscroll-behavior: none; }
[hidden] { display: none !important; }
button { font: inherit; color: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 화면 ---------- */
.screen { min-height: 100svh; display: flex; align-items: center; justify-content: center; position: relative;
  padding: max(56px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(40px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left)); }
.screen-top { align-items: flex-start; padding-top: calc(max(10px, env(safe-area-inset-top)) + 50px); }

/* ---------- 이전 버튼 ----------
   모든 화면에서 박스 밖, 왼쪽 위 같은 높이: ‹ 아이콘 + 돌아갈 곳 이름 (첫 화면은 ‹ Games)
   넓은 화면에서는 내용 칸의 왼쪽 끝에 맞춤 — 칸 너비의 절반을 --col-half로 (기본 280px = 560px 칸)
   연주 화면 위쪽 줄에서는 아이콘만 (.hud-back)
   <button class="btn btn-quiet back nav-back"><svg class="back-ico" viewBox="0 0 24 24"><path d="M15 5l-7 7 7 7" .../></svg><span>곡 목록</span></button> */
.screen { --col-half: 280px; }
.back, .corner-link { display: inline-flex; align-items: center; gap: 4px; }
.back-ico { width: 22px; height: 22px; flex: none; margin-left: -4px; }
.screen > .nav-back { position: absolute; z-index: 3; top: max(6px, env(safe-area-inset-top)); left: max(env(safe-area-inset-left), calc(50% - var(--col-half) - 16px));
  margin: 0; padding: 12px 16px; font: 600 15px var(--ui); color: var(--mute); text-decoration: none; }
.screen > .nav-back:hover { color: var(--ink); }
.btn.hud-back { pointer-events: auto; flex: none; margin: 0 -10px 0 -16px; padding: 9px 16px; color: var(--ink); }

/* ---------- 버튼 ---------- */
.btn {
  font: 600 16px/1 var(--ui); border-radius: 999px; padding: 15px 26px; cursor: pointer; border: 0;
  color: var(--ink); background: none; text-decoration: none;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: transform .12s ease, background-color .15s ease, box-shadow .15s, opacity .15s;
}
.btn svg { width: 18px; height: 18px; }
.btn .back-ico { width: 22px; height: 22px; }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: .45; cursor: default; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-solid { background: var(--ink); color: var(--abyss); }
.btn-solid:hover { background: #fff; }
.btn-line { box-shadow: inset 0 0 0 1.5px var(--line); }
.btn-line:hover { box-shadow: inset 0 0 0 1.5px var(--mute); }
.btn-quiet { color: var(--mute); padding: 12px 16px; }
.btn-quiet:hover { color: var(--ink); }
.btn-sm { padding: 10px 16px; font-size: 14px; }
.wide { width: 100%; }
.danger { color: var(--l0); }
.link { background: none; border: 0; padding: 0; color: var(--accent); cursor: pointer; font-weight: 600; font-size: inherit; text-decoration: underline; text-underline-offset: 3px; }
/* 동그란 아이콘 단추 (연주 화면 설정·일시정지 등) */
.hud-btn, .icon-btn { pointer-events: auto; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); background: rgba(12, 9, 38, 0.5);
  color: var(--ink); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; flex: none; padding: 0; }
.hud-btn svg, .icon-btn svg { width: 22px; height: 22px; }
.hud-btn:hover, .icon-btn:hover { border-color: var(--mute); }

/* ---------- 글자 크기 (Etude 기준, 모든 게임 같게) ----------
   홈 제목 .wordmark · 홈 소개 .lede · 화면 제목 .song-title(26px)·.page-title(32px) · 칸 머리 .group-name
   목록 이름 17px/설명 13.5px · 선택 카드 이름 15px/설명 12.5px · 설정 15px/이름 14.5px · 작은 설명 13px */
.wordmark {
  font: 900 clamp(76px, 19vw, 150px)/0.9 var(--display); letter-spacing: -0.045em; margin: 0 0 18px;
  background: var(--spectrum); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { margin: 0 0 36px; color: var(--mute); font-size: 18px; line-height: 1.6; word-break: keep-all; text-wrap: balance; }
.page-title { margin: 0; font: 800 32px/1.1 var(--ui); letter-spacing: -0.02em; }
.group-name { margin: 0 0 10px; font: 700 12px/1 var(--display); letter-spacing: .08em; color: var(--mute); text-transform: uppercase; display: flex; align-items: center; gap: 10px; }
.group-name::after { content: ""; flex: 1; height: 1px; background: var(--faint); }

/* ---------- 준비 화면 부품 (Etude와 같음) ----------
   미리듣기 .preview-btn · 연습 방식 카드 .modes > .mode[aria-checked] · 접히는 설정 .settings-box(summary .sb-title + .sb-sum)
   설정 줄 .set(.set-name + 값) · 켜고 끄는 알약 .toggles > .tg · 둘 중 고르기 .seg > button[aria-checked]
   시작 버튼 .sticky-cta > .btn-play · 상태 한 줄 .mic-chip[data-s] (점 + 글 + 링크) */
.mic-chip { display: inline-flex; align-items: center; gap: 8px; margin: 22px 0 0; font-size: 13.5px; color: var(--mute); }
.mic-chip i { width: 8px; height: 8px; border-radius: 50%; background: var(--mute); flex: none; }
.mic-chip[data-s="on"] i { background: var(--l2); box-shadow: 0 0 0 4px rgba(62, 230, 200, 0.2); }
.mic-chip[data-s="denied"] i, .mic-chip[data-s="error"] i, .mic-chip[data-s="missing"] i, .mic-chip[data-s="unsupported"] i { background: var(--l0); }
.mic-chip-sm { margin-top: 14px; justify-content: center; width: 100%; flex-wrap: wrap; }
.modes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 22px; }
/* 미리듣기: 곡 정보 아래, 곡에 딸린 버튼 */
.preview-btn { display: inline-flex; align-items: center; gap: 8px; margin: 2px 0 6px; padding: 8px 14px 8px 10px; border-radius: 999px; border: 1.5px solid var(--line);
  background: rgba(12,9,38,0.45); color: var(--ink); font: 700 14px var(--ui); cursor: pointer; max-width: 100%; }
.preview-btn:hover { border-color: color-mix(in srgb, var(--accent) 60%, var(--line)); }
.preview-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.preview-btn i { flex: none; width: 22px; height: 22px; border-radius: 50%; background: var(--accent); display: grid; place-items: center; }
.preview-btn i::after { content: ''; margin-left: 2px; border-left: 8px solid #140f38; border-top: 5px solid transparent; border-bottom: 5px solid transparent; }
.preview-btn small { font: 500 12.5px var(--ui); color: var(--mute); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mode {
  text-align: left; cursor: pointer; border-radius: var(--r-md); padding: 13px 13px 11px;
  background: rgba(246,242,255,0.04); border: 1.5px solid var(--faint); transition: border-color .15s, background-color .15s;
}
.mode:hover { border-color: var(--line); }
.mode { display: flex; flex-direction: column; justify-content: flex-start; align-items: flex-start; }
.mode b { display: block; font-size: 15px; font-weight: 800; }
.mode span { display: block; margin-top: 4px; font-size: 12.5px; color: var(--mute); line-height: 1.35; word-break: keep-all; }
.mode[aria-checked="true"] { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.mode[aria-checked="true"] b { color: var(--accent); }
.mode b { white-space: nowrap; }
.settings { display: grid; gap: 14px; padding: 6px 0 4px; }
/* 연습 설정: 기본은 접고, 접힌 상태에서도 지금 값을 한 줄로 */
.settings-box { margin: 4px 0 24px; border-radius: 16px; box-shadow: inset 0 0 0 1.5px var(--line); padding: 0 16px; }
.settings-box > summary { list-style: none; display: flex; align-items: center; gap: 10px; padding: 14px 0; cursor: pointer; min-height: 48px; }
.settings-box > summary::-webkit-details-marker { display: none; }
.settings-box > summary::after { content: ''; margin-left: auto; flex: none; width: 8px; height: 8px; border-right: 2px solid var(--mute); border-bottom: 2px solid var(--mute); transform: rotate(45deg) translateY(-3px); transition: transform .2s; }
.settings-box[open] > summary::after { transform: rotate(-135deg) translateY(-2px); }
.settings-box[open] { padding-bottom: 16px; }
.sb-title { font-weight: 700; font-size: 15px; flex: none; }
.sb-sum { font-size: 13px; color: var(--mute); min-width: 0; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; word-break: keep-all; }
.set { display: grid; grid-template-columns: 84px 1fr auto; align-items: center; gap: 12px; font-size: 15px; }
.set-name { color: var(--mute); font-size: 14.5px; }
.set output { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; min-width: 48px; }
.set .seg, .set .range-pick { grid-column: 2 / 4; }
.set-inline { display: flex; gap: 10px; align-items: center; flex: 1; min-width: 200px; }
.set-inline input { flex: 1; }
.set-help { margin: 0; font-size: 13px; color: var(--mute); word-break: keep-all; min-height: 1em; }
.range-pick { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; color: var(--mute); }
select, input[type="text"], input[type="number"], textarea {
  font: 500 15px var(--ui); color: var(--ink); background: rgba(12, 9, 38, 0.6); border: 1.5px solid var(--line);
  border-radius: 10px; padding: 8px 10px; min-width: 0;
}
select { padding-right: 28px; appearance: none; -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--mute) 50%), linear-gradient(135deg, var(--mute) 50%, transparent 50%);
  background-position: calc(100% - 15px) 52%, calc(100% - 10px) 52%; background-size: 5px 5px; background-repeat: no-repeat; }
select option { background: var(--abyss); }
.chk { display: inline-flex; align-items: center; gap: 6px; color: var(--ink); font-size: 14px; }
.toggles { display: flex; flex-wrap: wrap; gap: 8px; }
.tg { position: relative; cursor: pointer; }
.tg input { position: absolute; opacity: 0; pointer-events: none; }
.tg span { display: inline-block; padding: 8px 14px; border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--mute); box-shadow: inset 0 0 0 1.5px var(--line); transition: all .15s; }
.tg input:checked + span { color: var(--abyss); background: var(--accent); box-shadow: none; }
.tg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 3px; }
.tg input:disabled + span { opacity: .35; cursor: not-allowed; }
.seg { display: inline-flex; padding: 3px; border-radius: 999px; background: rgba(12,9,38,0.6); box-shadow: inset 0 0 0 1.5px var(--line); width: fit-content; }
.seg button { border: 0; background: none; cursor: pointer; padding: 7px 14px; border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--mute); }
.seg button[aria-checked="true"] { background: var(--ink); color: var(--abyss); }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; touch-action: pan-y; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: var(--line); }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 4px; background: var(--line); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--ink); margin-top: -8px; box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 30%, transparent); }
input[type="range"]::-moz-range-thumb { width: 20px; height: 20px; border: 0; border-radius: 50%; background: var(--ink); }
.btn-play { width: 100%; padding: 18px; font-size: 18px; }
/* 시작 버튼은 스크롤해도 화면 아래에 붙어 있음 */
.sticky-cta {
  position: sticky; bottom: calc(env(safe-area-inset-bottom, 0px) + 36px); z-index: 5;
  margin: 0 -10px; padding: 18px 10px 6px;
  background: linear-gradient(180deg, rgba(20, 15, 56, 0), rgba(20, 15, 56, 0.92) 45%);
  border-radius: 0 0 24px 24px;
}
.sticky-cta .btn-play { box-shadow: 0 12px 34px rgba(5, 3, 20, 0.55), 0 0 0 1px rgba(246, 242, 255, 0.08); }

/* ---------- 패널 ---------- */
.panel {
  width: 100%; max-width: 560px;
  background: linear-gradient(180deg, rgba(246, 242, 255, 0.07), rgba(246, 242, 255, 0.03));
  border: 1px solid var(--faint); border-radius: var(--r-lg); padding: 30px 26px;
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 30px 80px rgba(5, 3, 20, 0.5);
}
@media (max-width: 420px) {
  .panel { padding: 24px 18px; border-radius: 24px; }
  .modes { gap: 6px; }
  .mode { padding: 11px 10px 9px; }
  .set { grid-template-columns: 70px 1fr auto; }
}
.kicker { margin: 0 0 4px; color: var(--accent); font-weight: 700; font-size: 14px; }
.song-title { margin: 0; font-size: 26px; line-height: 1.25; font-weight: 800; word-break: keep-all; overflow-wrap: anywhere; letter-spacing: -0.01em; }
.song-meta { margin: 6px 0 0; color: var(--mute); font-size: 15px; font-variant-numeric: tabular-nums; }

/* ---------- 연주 화면 ---------- */
.hud-progress { position: relative; height: 3px; border-radius: 3px; background: var(--faint); overflow: hidden; }
.hud-progress span { display: block; height: 100%; width: 0; background: var(--spectrum); }
.hud-row { display: flex; align-items: center; gap: 14px; margin-top: 10px; }
.hud-title { flex: 1; min-width: 0; margin: 0; font-size: 14px; color: var(--mute); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hud-num { display: block; font: 700 21px/1.1 var(--display); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.hud-sub { font-size: 12px; color: var(--mute); font-variant-numeric: tabular-nums; }
/* 큰 재생/일시정지: 엄지가 닿는 오른쪽 아래 (게임마다 자리를 옮길 수 있음) */
.playpause { position: absolute; right: max(16px, env(safe-area-inset-right)); bottom: 14px; z-index: 4; width: 64px; height: 64px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--ink); color: var(--abyss); display: grid; place-items: center; box-shadow: 0 10px 28px rgba(5, 3, 20, 0.55), 0 0 0 6px rgba(246, 242, 255, 0.08); }
.playpause:active { transform: scale(.95); }
.playpause .pp-pause { display: flex; gap: 6px; } .playpause .pp-pause span { width: 6px; height: 22px; border-radius: 2px; background: currentColor; }
.playpause .pp-play { display: none; width: 0; height: 0; margin-left: 6px; border-left: 22px solid currentColor; border-top: 13px solid transparent; border-bottom: 13px solid transparent; }
.playpause[data-state="paused"] .pp-pause { display: none; } .playpause[data-state="paused"] .pp-play { display: block; }
.playpause[data-state="paused"] { box-shadow: 0 10px 28px rgba(5, 3, 20, 0.55), 0 0 0 8px color-mix(in srgb, var(--accent) 45%, transparent); }
.countdown { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; font: 900 clamp(80px, 18vw, 150px)/1 var(--display); color: var(--ink); text-shadow: 0 0 40px color-mix(in srgb, var(--accent) 80%, transparent); }
.countdown.pop { animation: pop .9s ease-out both; }
@keyframes pop { 0% { transform: scale(1.4); opacity: 0; } 15% { transform: scale(1); opacity: 1; } 80% { opacity: 1; } 100% { opacity: 0; transform: scale(.92); } }

/* ---------- 일시정지 창 ---------- */
.overlay { position: fixed; inset: 0; display: grid; place-items: center; padding: 16px; background: rgba(8, 6, 28, 0.6); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); z-index: 10; }
.pause-panel { max-width: 340px; display: grid; gap: 10px; text-align: center; }
.pause-panel h2 { margin: 0 0 10px; font: 700 22px var(--display); }