@import url('/vendor/pretendard/dist/web/variable/pretendardvariable.css');

/* ---------- 디자인 토큰 ---------- */
:root {
  --ink: #10203f; --ink2: #46557a; --ink3: #8793b1; --line: #e2e9f6; --bg: #e9f2ff; --card: #ffffff;
  --blue: #2d6cff; --blue-d: #1a49c4; --blue-l: #e8f0ff;
  --amber: #ffb400; --amber-d: #c27f00; --green: #14ae68; --green-l: #dcf8ea; --red: #ec4444; --red-l: #ffe6e6;
  --glass: rgba(10, 18, 40, .64); --glass-line: rgba(255, 255, 255, .16);
  --r1: 0.75rem; --r2: 1.125rem; --r3: 1.75rem;
  --sh1: 0 1px 2px rgba(16, 32, 63, .06), 0 0.375rem 1.25rem rgba(16, 32, 63, .08);
  --sh2: 0 1.875rem 5rem rgba(10, 20, 50, .34);
  --font: 'Pretendard Variable', Pretendard, 'Malgun Gothic', 'Apple SD Gothic Neo', system-ui, sans-serif;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; font-family: var(--font); color: var(--ink); font-size: 1rem; line-height: 1.45; letter-spacing: -.01em; }
body.game { overflow: hidden; background: #bfe0ff; touch-action: none; user-select: none; -webkit-user-select: none; }
body.page { min-height: 100%; overflow: auto; background: radial-gradient(75rem 37.5rem at 85% -10%, #cfe3ff 0, transparent 60%), radial-gradient(56.25rem 31.25rem at -10% 10%, #fff1cc 0, transparent 55%), #f4f8ff; }
button, input { font-family: inherit; color: inherit; }
.ico { flex: none; display: block; }
.hide { display: none !important; }
canvas#c { position: fixed; inset: 0; width: 100%; height: 100%; display: block; }
#stage { position: fixed; inset: 0; }

/* ---------- 버튼 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; height: 3.25rem; padding: 0 1.5rem; border: 0; border-radius: 1rem; font-size: 1.0625rem; font-weight: 700; cursor: pointer; transition: transform .08s, box-shadow .08s, filter .15s; white-space: nowrap; }
.btn:active { transform: translateY(3px); }
.btn:disabled { opacity: .5; pointer-events: none; }
.btn.primary { color: #fff; background: linear-gradient(180deg, #4b87ff, #2d6cff); box-shadow: 0 0.25rem 0 var(--blue-d), 0 0.875rem 1.625rem rgba(45, 108, 255, .32); }
.btn.primary:active { box-shadow: 0 1px 0 var(--blue-d), 0 0.375rem 0.875rem rgba(45, 108, 255, .3); }
.btn.amber { color: #3b2800; background: linear-gradient(180deg, #ffd24d, #ffb400); box-shadow: 0 0.25rem 0 var(--amber-d), 0 0.875rem 1.625rem rgba(255, 180, 0, .32); }
.btn.amber:active { box-shadow: 0 1px 0 var(--amber-d); }
.btn.ghost { background: #fff; border: 1px solid var(--line); box-shadow: 0 3px 0 #d3dcef; }
.btn.ghost:active { box-shadow: 0 0 0 #d3dcef; }
.btn.danger { color: var(--red); background: #fff; border: 1px solid #f7c9c9; box-shadow: 0 3px 0 #f3c4c4; }
.btn.sm { height: 2.375rem; padding: 0 0.875rem; font-size: 0.875rem; border-radius: 0.75rem; }
.btn.block { width: 100%; }
.iconbtn { width: 2.875rem; height: 2.875rem; border-radius: 0.875rem; display: grid; place-items: center; border: 1px solid var(--glass-line); background: var(--glass); color: #fff; cursor: pointer; backdrop-filter: blur(0.625rem); -webkit-backdrop-filter: blur(0.625rem); transition: transform .08s, background .15s; padding: 0; }
.iconbtn:active { transform: scale(.94); }
.iconbtn.off { color: rgba(255, 255, 255, .45); }
.iconbtn.on { background: var(--blue); }

/* ---------- 카드/레이아웃 ---------- */
.card { background: var(--card); border-radius: var(--r3); box-shadow: var(--sh1); padding: 1.5rem; }
.card.float { box-shadow: var(--sh2); }
.h1 { font-size: clamp(1.875rem, 5vw, 2.75rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.15; margin: 0; }
.h2 { font-size: 1.25rem; font-weight: 800; letter-spacing: -.02em; margin: 0 0 0.875rem; }
.sub { color: var(--ink2); margin: 0; }
.chip { display: inline-flex; align-items: center; gap: 0.375rem; height: 1.75rem; padding: 0 0.6875rem; border-radius: 6.1875rem; background: var(--blue-l); color: var(--blue-d); font-size: 0.8125rem; font-weight: 700; }
.chip.gray { background: #eef1f8; color: var(--ink2); }
.chip.green { background: var(--green-l); color: #0d7d4a; }
.chip.amber { background: #fff3cf; color: #8a5a00; }
.chip.red { background: var(--red-l); color: #b42323; }
.tag { display: inline-block; height: 1.375rem; line-height: 1.375rem; padding: 0 0.5rem; border-radius: 0.5rem; background: #eef3ff; color: #35507f; font-size: 0.75rem; font-weight: 600; }
.dots { display: inline-flex; gap: 3px; vertical-align: middle; }
.dots i { width: 0.4375rem; height: 0.4375rem; border-radius: 50%; background: #d3dbec; }
.dots i.on { background: var(--amber); }
.brand { display: flex; align-items: center; gap: 0.625rem; font-weight: 800; font-size: 1.25rem; letter-spacing: -.03em; }

/* ---------- 입장 화면 ---------- */
.overlay { position: fixed; inset: 0; z-index: 30; display: flex; align-items: center; justify-content: center; padding: 1rem; overflow-y: auto; background: radial-gradient(56.25rem 31.25rem at 20% 10%, rgba(255, 226, 150, .55), transparent 60%), radial-gradient(56.25rem 37.5rem at 90% 90%, rgba(120, 170, 255, .55), transparent 60%), rgba(214, 232, 255, .72); backdrop-filter: blur(0.5rem); -webkit-backdrop-filter: blur(0.5rem); touch-action: pan-y; }
.sheet { width: min(58.75rem, 100%); margin: auto; display: grid; grid-template-columns: 18.75rem 1fr; background: var(--card); border-radius: 2rem; box-shadow: var(--sh2); overflow: hidden; }
.sheet .left { padding: 1.75rem 1.5rem; background: linear-gradient(170deg, #e6efff, #f9fbff); display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.625rem; }
.sheet .left .pv { width: 11.875rem; height: 11.875rem; border-radius: 50%; background: radial-gradient(circle at 50% 35%, #fff, #dbe8ff 70%); display: grid; place-items: center; box-shadow: inset 0 -0.625rem 1.875rem rgba(45, 108, 255, .12); }
.sheet .left .pv img { width: 10.625rem; height: 10.625rem; object-fit: contain; }
.sheet .right { padding: 1.5rem; display: flex; flex-direction: column; gap: 0.875rem; min-width: 0; }
.field { display: flex; flex-direction: column; gap: 0.375rem; }
.field label { font-size: 0.8125rem; font-weight: 700; color: var(--ink2); }
.input { height: 3.25rem; width: 100%; padding: 0 1rem; border: 2px solid var(--line); border-radius: 0.875rem; font-size: 1.125rem; font-weight: 700; background: #fff; outline: none; user-select: text; -webkit-user-select: text; transition: border-color .15s, box-shadow .15s; }
.input:focus { border-color: var(--blue); box-shadow: 0 0 0 0.25rem rgba(45, 108, 255, .16); }
#avatars { display: grid; grid-template-columns: repeat(auto-fill, minmax(4.875rem, 1fr)); gap: 0.5rem; max-height: 18.75rem; overflow-y: auto; padding: 0.25rem; margin: -0.25rem; touch-action: pan-y; }
button.av { position: relative; padding: 0.375rem 0.25rem 0.5rem; border: 2px solid transparent; border-radius: 1rem; background: #f3f6fc; cursor: pointer; font-size: 0.78125rem; font-weight: 700; color: var(--ink2); transition: transform .1s, background .15s, border-color .15s; }
button.av img { width: 100%; aspect-ratio: 1; display: block; }
button.av:hover { background: #e9f0fd; }
button.av.sel { border-color: var(--blue); background: var(--blue-l); color: var(--blue-d); transform: translateY(-2px); }
button.av.sel::after { content: ''; position: absolute; top: 0.3125rem; right: 0.3125rem; width: 1.125rem; height: 1.125rem; border-radius: 50%; background: var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/0.75rem no-repeat; }
.err { min-height: 1.25rem; color: var(--red); font-weight: 600; font-size: 0.875rem; }
.codechip { display: inline-flex; align-items: center; gap: 0.375rem; padding: 0.3125rem 0.875rem; background: var(--ink); color: #fff; border-radius: 6.1875rem; font-weight: 800; letter-spacing: .14em; font-size: 0.9375rem; }

/* ---------- 게임 화면 HUD ---------- */
#hud { position: fixed; inset: 0; z-index: 5; pointer-events: none; }
.hud-row { position: absolute; display: flex; gap: 0.5rem; align-items: center; }
.tl { top: max(0.75rem, env(safe-area-inset-top)); left: 0.75rem; flex-wrap: wrap; max-width: calc(100vw - 4.75rem); }
.tr { top: max(0.75rem, env(safe-area-inset-top)); right: 0.75rem; pointer-events: auto; }
.pill { display: inline-flex; align-items: center; gap: 0.4375rem; height: 2.375rem; padding: 0 0.8125rem; border-radius: 0.8125rem; background: var(--glass); border: 1px solid var(--glass-line); color: #fff; font-weight: 700; font-size: 0.9375rem; backdrop-filter: blur(0.625rem); -webkit-backdrop-filter: blur(0.625rem); white-space: nowrap; font-variant-numeric: tabular-nums; }
.pill .ico { opacity: .85; }
.pill.warn { background: rgba(236, 68, 68, .88); animation: pulse .6s infinite alternate; }
@keyframes pulse { to { transform: scale(1.06); } }
#goals { position: absolute; top: max(0.75rem, env(safe-area-inset-top)); left: 50%; transform: translateX(-50%); display: flex; gap: 0.5rem; }
.goal { position: relative; display: inline-flex; align-items: center; gap: 0.5rem; height: 2.75rem; padding: 0 1rem; border-radius: 0.9375rem; background: var(--glass); border: 1px solid var(--glass-line); color: #fff; font-weight: 800; font-size: 1.0625rem; backdrop-filter: blur(0.625rem); -webkit-backdrop-filter: blur(0.625rem); overflow: hidden; white-space: nowrap; transition: background .25s; }
.goal i { position: absolute; left: 0; bottom: 0; height: 3px; background: var(--amber); transition: width .25s; }
.goal.ok { background: rgba(20, 174, 104, .85); }
.goal.ok i { background: #fff; }
.goal small { font-weight: 600; opacity: .8; font-size: 0.8125rem; }

.intro { position: absolute; left: 50%; bottom: 1.125rem; transform: translate(-50%, 1.25rem); width: min(35rem, calc(100vw - 1.5rem)); padding: 1rem 1.125rem; border-radius: 1.375rem; background: var(--glass); border: 1px solid var(--glass-line); color: #fff; backdrop-filter: blur(0.875rem); -webkit-backdrop-filter: blur(0.875rem); opacity: 0; transition: .4s; pointer-events: none; }
.intro.on { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; cursor: pointer; }
.intro .head { display: flex; align-items: center; gap: 0.625rem; margin-bottom: 0.25rem; font-weight: 800; font-size: 1.1875rem; }
.intro .head b { background: var(--amber); color: #3b2800; border-radius: 0.5625rem; padding: 1px 0.5625rem; font-size: 0.875rem; }
.intro p { margin: 0 0 0.5rem; color: rgba(255, 255, 255, .88); font-size: 0.9375rem; }
.intro .tags { display: flex; gap: 0.375rem; flex-wrap: wrap; }
.intro .tag { background: rgba(255, 255, 255, .16); color: #fff; }

.lobbybar { position: absolute; top: max(4.125rem, calc(env(safe-area-inset-top) + 3.625rem)); left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 0.5rem; width: min(32.5rem, calc(100vw - 1.5rem)); pointer-events: none; }
.lobbycard { width: 100%; padding: 0.875rem 1.125rem; border-radius: 1.25rem; background: var(--glass); border: 1px solid var(--glass-line); color: #fff; backdrop-filter: blur(0.875rem); -webkit-backdrop-filter: blur(0.875rem); text-align: center; pointer-events: auto; }
.lobbycard h3 { margin: 0 0 2px; font-size: 1.125rem; font-weight: 800; }
.lobbycard p { margin: 0; font-size: 0.875rem; color: rgba(255, 255, 255, .82); }
.nextlv { display: inline-flex; align-items: center; gap: 0.5rem; margin-top: 0.625rem; padding: 0.4375rem 0.75rem; border-radius: 0.75rem; background: rgba(255, 255, 255, .14); font-weight: 700; font-size: 0.875rem; }
.nextlv b { background: var(--amber); color: #3b2800; border-radius: 0.5rem; padding: 0 0.5rem; }

#chat { position: absolute; right: 0.75rem; top: calc(max(0.75rem, env(safe-area-inset-top)) + 3.375rem); display: none; flex-direction: column; gap: 0.375rem; padding: 0.5rem; border-radius: 1.125rem; background: var(--glass); border: 1px solid var(--glass-line); backdrop-filter: blur(0.875rem); -webkit-backdrop-filter: blur(0.875rem); pointer-events: auto; }
#chat.on { display: flex; }
#chat button { height: 2.5rem; padding: 0 0.875rem; border: 0; border-radius: 0.75rem; background: rgba(255, 255, 255, .12); color: #fff; font-weight: 700; font-size: 0.9375rem; text-align: left; cursor: pointer; display: flex; gap: 0.625rem; align-items: center; }
#chat button:active { background: var(--blue); }
#chat kbd { font: 700 0.6875rem var(--font); padding: 1px 0.375rem; border-radius: 0.375rem; background: rgba(255, 255, 255, .2); }

#toast { position: fixed; left: 50%; bottom: 24%; transform: translate(-50%, 0.625rem); display: inline-flex; align-items: center; gap: 0.5625rem; padding: 0.6875rem 1.125rem; border-radius: 0.875rem; background: var(--glass); border: 1px solid var(--glass-line); color: #fff; font-weight: 700; font-size: 1rem; opacity: 0; transition: .25s; z-index: 30; pointer-events: none; backdrop-filter: blur(0.75rem); -webkit-backdrop-filter: blur(0.75rem); }
#toast.on { opacity: 1; transform: translate(-50%, 0); }
#banner { position: fixed; top: 0; left: 0; right: 0; z-index: 50; display: none; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.625rem; background: var(--red); color: #fff; font-weight: 700; }
#banner.on { display: flex; }
#outBar { position: fixed; left: 50%; bottom: 7%; transform: translateX(-50%); z-index: 12; display: none; align-items: center; gap: 0.625rem; padding: 0.75rem 1.25rem; border-radius: 1rem; background: var(--glass); border: 1px solid var(--glass-line); color: #fff; font-weight: 700; backdrop-filter: blur(0.75rem); -webkit-backdrop-filter: blur(0.75rem); pointer-events: none; max-width: calc(100vw - 1.5rem); }
#outBar.on { display: flex; }

.result { width: min(28.75rem, 100%); margin: auto; text-align: center; background: #fff; border-radius: 1.875rem; padding: 1.75rem 1.5rem; box-shadow: var(--sh2); }
.result .medal { width: 4.75rem; height: 4.75rem; margin: 0 auto 0.625rem; border-radius: 50%; display: grid; place-items: center; color: #3b2800; background: radial-gradient(circle at 35% 30%, #ffe48a, #ffb400); box-shadow: 0 0.5rem 0 var(--amber-d); }
.result .time { font-size: clamp(2.75rem, 12vw, 4rem); font-weight: 800; letter-spacing: -.04em; font-variant-numeric: tabular-nums; margin: 0.5rem 0 0.25rem; }
.result.bad .medal { background: radial-gradient(circle at 35% 30%, #ffc1c1, #ec4444); color: #fff; box-shadow: 0 0.5rem 0 #a92a2a; }

/* ---------- 터치 조이패드 ---------- */
.joy-base { position: fixed; width: 8.25rem; height: 8.25rem; margin: -4.125rem 0 0 -4.125rem; border-radius: 50%; background: rgba(255, 255, 255, .22); border: 2px solid rgba(255, 255, 255, .7); pointer-events: none; opacity: 0; transition: opacity .12s; z-index: 6; backdrop-filter: blur(0.25rem); }
.joy-base.on { opacity: 1; }
.joy-knob { position: absolute; left: 50%; top: 50%; width: 3.625rem; height: 3.625rem; border-radius: 50%; background: #fff; box-shadow: 0 0.375rem 1rem rgba(16, 32, 63, .35); transform: translate(-50%, -50%); }
.jump-hint { position: fixed; right: 6%; bottom: 9%; width: 5.75rem; height: 5.75rem; border-radius: 50%; background: rgba(255, 255, 255, .2); border: 2px solid rgba(255, 255, 255, .65); display: none; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 1.125rem; pointer-events: none; z-index: 6; backdrop-filter: blur(0.25rem); }
body.touch .jump-hint { display: flex; }
.jump-hint.on { background: var(--amber); color: #3b2800; border-color: #fff; }
body.spec .joy-base, body.spec .jump-hint { display: none !important; }

/* ---------- 랜딩 / 교사 화면 ---------- */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding: 0.875rem 1.25rem; max-width: 73.75rem; margin: 0 auto; }
.wrap { max-width: 73.75rem; margin: 0 auto; padding: 0.5rem 1.25rem 4.375rem; }
.hero { text-align: center; padding: 3.5rem 0.75rem 1.25rem; }
.hero p { font-size: 1.125rem; margin-top: 0.75rem; }
.choose { display: grid; grid-template-columns: repeat(auto-fit, minmax(18.75rem, 1fr)); gap: 1.125rem; max-width: 51.25rem; margin: 1.75rem auto 0; }
.choose .card { display: flex; flex-direction: column; gap: 0.875rem; }
.choose .big { font-size: 1.375rem; font-weight: 800; letter-spacing: -.02em; display: flex; align-items: center; gap: 0.625rem; }
.choose .big .ico { padding: 0.5rem; width: 2.5rem; height: 2.5rem; border-radius: 0.75rem; background: var(--blue-l); color: var(--blue); }
.codein { height: 4rem; width: 100%; text-align: center; font-size: 2.125rem; font-weight: 800; letter-spacing: .5em; padding-left: .5em; border: 2px solid var(--line); border-radius: 1rem; outline: none; background: #fff; }
.codein:focus { border-color: var(--blue); box-shadow: 0 0 0 0.25rem rgba(45, 108, 255, .16); }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(13.75rem, 1fr)); gap: 0.875rem; max-width: 61.25rem; margin: 2.75rem auto 0; }
.features .card { padding: 1.125rem; box-shadow: none; border: 1px solid var(--line); }
.features h4 { margin: 0 0 0.25rem; font-size: 1rem; font-weight: 800; }
.features p { margin: 0; font-size: 0.875rem; color: var(--ink2); }

.tgrid { display: grid; grid-template-columns: 21.25rem 1fr; gap: 1.125rem; align-items: start; }
@media (max-width: 900px) { .tgrid { grid-template-columns: 1fr; } }
.qrcard { text-align: center; display: flex; flex-direction: column; gap: 0.75rem; align-items: center; }
.bigcode { font-size: 3.625rem; font-weight: 800; letter-spacing: .16em; padding-left: .16em; line-height: 1; }
.qrcard img { width: min(100%, 16.25rem); border-radius: 1.125rem; border: 1px solid var(--line); padding: 0.5rem; background: #fff; }
.url { width: 100%; word-break: break-all; font-size: 0.8125rem; background: #f2f6fd; padding: 0.5625rem 0.75rem; border-radius: 0.75rem; color: var(--ink2); user-select: text; }
.status { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 0.875rem; }
.status .now { font-weight: 800; font-size: 1.125rem; flex: 1; min-width: 12.5rem; }
.actions { display: flex; gap: 0.625rem; flex-wrap: wrap; }
.roster { display: grid; grid-template-columns: repeat(auto-fill, minmax(12.5rem, 1fr)); gap: 0.5rem; max-height: 18.75rem; overflow: auto; }
.row { display: flex; align-items: center; gap: 0.625rem; padding: 0.5rem 0.625rem; border-radius: 0.875rem; background: #f3f6fc; font-weight: 700; }
.row.off { opacity: .45; }
.row .sw { width: 1.625rem; height: 1.625rem; border-radius: 50%; flex: none; display: grid; place-items: center; color: #fff; font-size: 0.75rem; font-weight: 800; }
.row .nm { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .av { font-size: 0.75rem; color: var(--ink3); font-weight: 600; }
.row button { border: 0; background: transparent; color: var(--ink3); cursor: pointer; padding: 0.25rem; border-radius: 0.5rem; }
.row button:hover { background: #fff; color: var(--red); }
.levels { display: grid; grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr)); gap: 0.75rem; }
.lv { position: relative; text-align: left; border: 2px solid var(--line); border-radius: 1.25rem; background: #fff; padding: 0.875rem 0.875rem 0.75rem; cursor: pointer; transition: transform .1s, border-color .15s, box-shadow .15s; display: flex; flex-direction: column; gap: 0.375rem; }
.lv:hover { transform: translateY(-2px); box-shadow: var(--sh1); }
.lv.cur { border-color: var(--blue); background: var(--blue-l); }
.lv .no { font-size: 0.75rem; font-weight: 800; color: var(--blue); letter-spacing: .06em; }
.lv b { font-size: 1.0625rem; letter-spacing: -.02em; }
.lv .tags { display: flex; gap: 0.3125rem; flex-wrap: wrap; min-height: 1.375rem; }
.lv .meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.78125rem; color: var(--ink3); font-weight: 600; }
.lv .need { color: #a76b00; }
.specframe { width: 100%; aspect-ratio: 16/9; border: 0; border-radius: 1.375rem; background: #0b1226; display: block; box-shadow: var(--sh1); }
.section-title { display: flex; align-items: center; justify-content: space-between; gap: 0.625rem; margin: 0 0 0.875rem; }

/* ---------- 좁은 화면 ---------- */
@media (max-width: 760px) {
  .sheet { grid-template-columns: 1fr; border-radius: 1.625rem; }
  .sheet .left { flex-direction: row; text-align: left; padding: 1rem; gap: 0.875rem; }
  .sheet .left .pv { width: 5.25rem; height: 5.25rem; flex: none; }
  .sheet .left .pv img { width: 4.875rem; height: 4.875rem; }
  .sheet .right { padding: 1rem; }
  #avatars { max-height: 36vh; grid-template-columns: repeat(auto-fill, minmax(4.25rem, 1fr)); }
}
@media (max-width: 640px) {
  .tl { gap: 0.375rem; }
  .pill { height: 2.125rem; padding: 0 0.625rem; font-size: 0.84375rem; border-radius: 0.6875rem; }
  #goals { top: calc(max(0.75rem, env(safe-area-inset-top)) + 5.375rem); width: calc(100vw - 1.5rem); justify-content: center; flex-wrap: wrap; }
  .goal { height: 2.5rem; font-size: 0.9375rem; padding: 0 0.8125rem; }
  .tr { top: auto; right: 0.625rem; bottom: calc(0.75rem + env(safe-area-inset-bottom)); flex-direction: column-reverse; }
  #chat { top: auto; right: 4rem; bottom: calc(0.75rem + env(safe-area-inset-bottom)); }
  .intro { bottom: auto; top: calc(max(0.75rem, env(safe-area-inset-top)) + 9.125rem); }
  .lobbybar { top: calc(max(0.75rem, env(safe-area-inset-top)) + 5.25rem); }
  .bigcode { font-size: 2.75rem; }
  #toast { bottom: 30%; }
}
@media (max-height: 480px) { .intro { display: none; } #goals { top: 0.75rem; } .lobbybar { top: 3.625rem; } }

#pPing { opacity: .8; font-size: 0.8125rem; padding: 0 0.625rem; } #pPing.slow { color: #ffd34d; opacity: 1; } #pPing.warn { background: rgba(236, 68, 68, .88); opacity: 1; }

.optrow { display: flex; gap: 0.875rem; flex-wrap: wrap; margin-top: 0.875rem; padding-top: 0.875rem; border-top: 1px solid var(--line); }
.opt { display: flex; flex-direction: column; gap: 0.375rem; font-size: 0.8125rem; font-weight: 700; color: var(--ink2); }
.input.sel { height: 2.75rem; font-size: 1rem; padding: 0 0.75rem; min-width: 8.125rem; }

/* 태블릿 세로처럼 폭이 중간인 화면: 목적지 표시를 위쪽 표시들 아래로 내린다 */
@media (min-width: 641px) and (max-width: 1000px) {
  #goals { top: calc(max(0.75rem, env(safe-area-inset-top)) + 3.4rem); }
  .intro { bottom: 1.2rem; }
  .lobbybar { top: calc(max(0.75rem, env(safe-area-inset-top)) + 3.6rem); }
}

/* 시작 카운트다운 */
#countdown { position: fixed; inset: 0; z-index: 14; display: none; align-items: center; justify-content: center; pointer-events: none; font-size: 9rem; font-weight: 800; color: #fff; text-shadow: 0 0.3rem 0 rgba(16, 32, 63, .45), 0 0 2.5rem rgba(45, 108, 255, .8); letter-spacing: -.04em; }
#countdown.on { display: flex; }
#countdown span { display: inline-block; animation: cdpop .9s ease-out; }
#countdown.go { color: #ffd34d; font-size: 7rem; }
@keyframes cdpop { 0% { transform: scale(2.2); opacity: 0; } 25% { transform: scale(1); opacity: 1; } 100% { transform: scale(.9); opacity: .85; } }

/* 연습 모드 */
.solo-card { width: min(34rem, 100%); margin: auto; max-height: calc(100vh - 2rem); overflow-y: auto; touch-action: pan-y; }
.solo-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .2rem; }
.iconbtn.dark { background: #eef2fb; color: var(--ink); border-color: var(--line); backdrop-filter: none; }
.seg { display: flex; gap: .4rem; flex-wrap: wrap; }
.seg button { flex: 1; min-width: 4.2rem; height: 2.8rem; border-radius: .9rem; border: 2px solid var(--line); background: #fff; font-weight: 700; font-size: .95rem; cursor: pointer; color: var(--ink); }
.seg button.on { background: var(--blue); border-color: var(--blue); color: #fff; }
.stepper { display: inline-flex; align-items: center; gap: .9rem; }
.stepper button { width: 2.9rem; height: 2.9rem; border-radius: .9rem; border: 2px solid var(--line); background: #fff; font-size: 1.5rem; font-weight: 800; cursor: pointer; color: var(--ink); }
.stepper b { min-width: 2rem; text-align: center; font-size: 1.5rem; }
#soloLevels { display: grid; grid-template-columns: repeat(auto-fill, minmax(8.8rem, 1fr)); gap: .45rem; max-height: 30vh; overflow-y: auto; padding: .15rem; touch-action: pan-y; }
#soloLevels button { text-align: left; padding: .5rem .65rem; border-radius: .9rem; border: 2px solid var(--line); background: #fff; cursor: pointer; font-size: .85rem; color: var(--ink); display: flex; flex-direction: column; gap: .15rem; }
#soloLevels button b { font-size: .95rem; }
#soloLevels button small { color: var(--blue); font-weight: 800; letter-spacing: .05em; }
#soloLevels button.on { border-color: var(--blue); background: var(--blue-l); }

/* 기록 순위표 */
.board { list-style: none; margin: .7rem auto 0; padding: 0; max-width: 24rem; text-align: left; display: grid; gap: .3rem; }
.board li { display: flex; gap: .6rem; align-items: center; padding: .4rem .7rem; border-radius: .8rem; background: #f3f6fc; font-size: .9rem; font-weight: 700; }
.board li b { min-width: 1.4rem; color: var(--ink3); } .board li .t { margin-left: auto; font-variant-numeric: tabular-nums; }
.board li .who { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; color: var(--ink2); }
.board li.me { background: #fff3cf; } .board li.me b { color: #8a5a00; }
.result .newrec { display: inline-block; margin: .2rem 0 .1rem; padding: .25rem .9rem; border-radius: 99px; background: var(--amber); color: #3b2800; font-weight: 800; }
#pBest.up { background: rgba(255, 180, 0, .9); color: #3b2800; }

#pTimeWrap.warn { background: rgba(236, 68, 68, .88); }

/* 터치 화면: 오른쪽 버튼 줄과 겹치지 않게 점프 표시를 안쪽으로 */
body.touch .jump-hint { right: 5.2rem; bottom: 8%; }

@media (max-width: 640px) { .intro { padding: .7rem .9rem; } .intro p { font-size: .85rem; margin-bottom: .4rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; } .intro .head { font-size: 1.05rem; } }

/* 메뉴: 평소에는 버튼 하나만 보이고, 눌렀을 때만 펼쳐진다 */
.tr { flex-direction: column; align-items: flex-end; gap: .5rem; }
.tr .iconbtn:not(#btnMenu) { display: none; }
.tr.open .iconbtn:not(#btnMenu) { display: grid; }
.tr.open #btnMenu { background: var(--blue); }
@media (max-width: 640px) {
  .tr { top: calc(max(0.75rem, env(safe-area-inset-top))); right: .65rem; bottom: auto; flex-direction: column; }
  #chat { top: calc(max(0.75rem, env(safe-area-inset-top)) + .2rem); bottom: auto; right: 4rem; }
}
body.touch .jump-hint { right: 6%; bottom: 9%; }

/* 수학탐험대 이름 목록 / 비밀번호 패드 */
#mathList { display: grid; grid-template-columns: repeat(auto-fill, minmax(7rem, 1fr)); gap: .45rem; max-height: 17rem; overflow-y: auto; padding: .15rem; touch-action: pan-y; }
#mathList button { height: 3rem; border-radius: .9rem; border: 2px solid var(--line); background: #fff; font-size: 1.05rem; font-weight: 800; color: var(--ink); cursor: pointer; padding: 0 .5rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#mathList button:disabled { opacity: .45; cursor: default; }
#mathList button:not(:disabled):active { background: var(--blue-l); border-color: var(--blue); }
.pin-card { width: min(21rem, 100%); margin: auto; }
.pin-dots { display: flex; justify-content: center; gap: .8rem; margin-bottom: .4rem; }
.pin-dots i { width: 1.1rem; height: 1.1rem; border-radius: 50%; border: 2px solid var(--ink3); }
.pin-dots i.on { background: var(--blue); border-color: var(--blue); }
.pin-dots.shake { animation: shake .35s; }
@keyframes shake { 20%, 60% { transform: translateX(-.45rem); } 40%, 80% { transform: translateX(.45rem); } }
.pin-keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; }
.pin-keys button { height: 3.6rem; border-radius: 1rem; border: 0; background: #eef2fb; font-size: 1.5rem; font-weight: 800; color: var(--ink); cursor: pointer; }
.pin-keys button:active { background: var(--blue); color: #fff; }
.pin-keys button.blank { visibility: hidden; }

/* 좁은 화면: 오른쪽 메뉴 버튼 줄과 겹치지 않게 안내 카드를 왼쪽으로 붙이고 폭을 줄인다 */
@media (max-width: 700px) {
  .lobbybar { left: 0.75rem; transform: none; width: calc(100vw - 5.5rem); }
}

/* 부활 버튼 방향 안내: 탈락한 친구가 있을 때 가장 가까운 부활 버튼 쪽을 가리킨다 */
#reviveGuide { position: fixed; left: 0; top: 0; z-index: 7; display: none; align-items: center; gap: 0.4rem; padding: 0.4rem 0.75rem 0.4rem 0.5rem; border-radius: 999px; background: rgba(139, 62, 188, .92); color: #fff; font-weight: 800; font-size: 0.875rem; pointer-events: none; box-shadow: 0 0.25rem 0.75rem rgba(40, 10, 70, .35); white-space: nowrap; }
#reviveGuide.on { display: inline-flex; }

/* 관전: 오른쪽 위 참가자 순위. 눌러서 그 친구를 따라가 보기 */
#specList { position: fixed; top: calc(max(0.75rem, env(safe-area-inset-top)) + 3.6rem); right: 0.75rem; z-index: 8; width: 11.5rem; max-height: 52vh; overflow-y: auto; display: none; flex-direction: column; gap: 0.25rem; padding: 0.5rem; border-radius: 1rem; background: var(--glass); border: 1px solid var(--glass-line); color: #fff; backdrop-filter: blur(0.75rem); -webkit-backdrop-filter: blur(0.75rem); pointer-events: auto; touch-action: pan-y; }
#specList.on { display: flex; }
#specList h4 { margin: 0 0 0.125rem; padding: 0 0.25rem; font-size: 0.75rem; font-weight: 800; color: rgba(255, 255, 255, .72); letter-spacing: .02em; }
#specList button { display: flex; align-items: center; gap: 0.4rem; width: 100%; padding: 0.3rem 0.4rem; border: 0; border-radius: 0.6rem; background: transparent; color: inherit; font: inherit; font-size: 0.8125rem; font-weight: 700; text-align: left; cursor: pointer; }
#specList button:hover { background: rgba(255, 255, 255, .12); }
#specList button.on { background: var(--blue); }
#specList .rk { width: 1.1rem; text-align: right; opacity: .75; font-variant-numeric: tabular-nums; }
#specList .dot { width: 0.6rem; height: 0.6rem; border-radius: 50%; flex: none; }
#specList .nm { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#specList .tag { font-size: 0.6875rem; opacity: .75; }
#specList button.out { opacity: .5; }

/* 실시간 관전 화면: 왼쪽에서 열리는 진행 메뉴 (스테이지 고르기 / 옵션 / 시작) */
#specMenu { position: fixed; left: 0; top: 0; bottom: 0; z-index: 9; width: min(20rem, 88vw); display: none; transform: translateX(-100%); transition: transform .22s ease; pointer-events: auto; }
body.spec #specMenu { display: block; }
#specMenu.open { transform: none; }
#specMenu .tab { position: absolute; left: 100%; top: 4.5rem; padding: 0.7rem 0.55rem; border: 0; border-radius: 0 0.9rem 0.9rem 0; background: var(--glass); color: #fff; font-weight: 800; font-size: 0.875rem; writing-mode: vertical-rl; cursor: pointer; backdrop-filter: blur(0.75rem); -webkit-backdrop-filter: blur(0.75rem); }
#specMenu .body { height: 100%; overflow-y: auto; padding: 1rem 0.9rem; background: rgba(16, 28, 52, .94); color: #fff; display: flex; flex-direction: column; gap: 0.9rem; backdrop-filter: blur(0.75rem); }
#specMenu h4 { margin: 0 0 0.35rem; font-size: 0.75rem; font-weight: 800; color: rgba(255, 255, 255, .6); letter-spacing: .03em; }
#specMenu .lvs { display: flex; flex-direction: column; gap: 0.2rem; max-height: 38vh; overflow-y: auto; }
#specMenu .lvs button, #specMenu .acts button { border: 0; border-radius: 0.6rem; padding: 0.5rem 0.65rem; background: rgba(255, 255, 255, .08); color: inherit; font: inherit; font-size: 0.8125rem; font-weight: 700; text-align: left; cursor: pointer; }
#specMenu .lvs button.on { background: var(--blue); }
#specMenu .lvs button .n { opacity: .6; margin-right: 0.4rem; }
#specMenu .acts { display: grid; grid-template-columns: 1fr 1fr; gap: 0.35rem; }
#specMenu .acts button { text-align: center; }
#specMenu .acts button.pri { grid-column: 1 / -1; background: var(--blue); }
#specMenu .opts { display: flex; flex-direction: column; gap: 0.4rem; }
#specMenu .opts label { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; font-size: 0.8125rem; font-weight: 700; }
#specMenu .opts select { border: 0; border-radius: 0.5rem; padding: 0.35rem 0.5rem; background: rgba(255, 255, 255, .12); color: #fff; font: inherit; }
#specMenu .opts option { color: #10203f; }

#specList.ro button { pointer-events: none; cursor: default; }
#specList.ro button.on { background: transparent; }

#specMenu .join .jrow { display: flex; gap: 0.7rem; align-items: center; }
#specMenu .join img { width: 7.5rem; height: 7.5rem; border-radius: 0.6rem; background: #fff; flex: none; }
#specMenu .jtxt { display: flex; flex-direction: column; gap: 0.35rem; min-width: 0; }
#specMenu .jtxt b { font-size: 0.9375rem; }
#specMenu .jtxt span { font-size: 0.6875rem; opacity: .7; word-break: break-all; }
#specMenu .jtxt button { border: 0; border-radius: 0.6rem; padding: 0.45rem 0.6rem; background: var(--blue); color: #fff; font: inherit; font-size: 0.8125rem; font-weight: 700; cursor: pointer; }

/* 선생님 화면: 전체화면을 누르면 관전 화면이 창 전체를 덮는다 */
.specframe.specfs { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 1000; border: 0; border-radius: 0; background: #000; }

/* 선생님 캐릭터 투입: 관전 화면 위에 내 플레이 화면을 덮는다 (진행 메뉴는 그 위에 남아 있다) */
#tPlay { position: fixed; inset: 0; width: 100%; height: 100%; border: 0; z-index: 8; background: #000; }
body.tplay #specList { display: none !important; }
#specMenu .acts button.wide { grid-column: 1 / -1; }

/* 메뉴 버튼은 아래가 아니라 왼쪽으로 펼쳐서 순위 명단·조작 버튼과 겹치지 않게 한다 (큰 화면과 관전 화면) */
body.spec .tr, body:not(.touch) .tr { flex-direction: row-reverse; align-items: center; }
@media (min-width: 700px) { .tr { flex-direction: row-reverse; align-items: center; } }

/* ---- 선생님 옆 메뉴 (탭형) ---- */
#specMenu { width: min(24rem, 92vw); }
#specMenu .body { gap: 0.7rem; padding: 0.9rem 0.8rem; }
#specMenu .smhead { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
#specMenu .smhead b { display: block; font-size: 0.9375rem; }
#specMenu .smhead span { font-size: 0.75rem; opacity: .65; }
#specMenu button.ghost { background: rgba(255, 255, 255, .1); }
#specMenu .smhead button { border: 0; border-radius: 0.6rem; padding: 0.4rem 0.6rem; color: #fff; font: inherit; font-size: 0.75rem; font-weight: 700; cursor: pointer; flex: none; }
#specMenu .smtabs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.25rem; padding: 0.2rem; border-radius: 0.8rem; background: rgba(255, 255, 255, .08); }
#specMenu .smtabs button { border: 0; border-radius: 0.6rem; padding: 0.45rem 0; background: transparent; color: rgba(255, 255, 255, .75); font: inherit; font-size: 0.8125rem; font-weight: 700; cursor: pointer; }
#specMenu .smtabs button.on { background: var(--blue); color: #fff; }
#specMenu section { display: flex; flex-direction: column; gap: 0.6rem; min-height: 0; }
#specMenu section[hidden] { display: none; }
#specMenu .lvs { max-height: 46vh; }
#specMenu .lvs button { display: flex; align-items: center; gap: 0.5rem; }
#specMenu .lvs .n { width: 1.2rem; text-align: right; opacity: .6; margin: 0; flex: none; }
#specMenu .lvs .t { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#specMenu .lvs .s { flex: none; opacity: .9; }
#specMenu .lvs .r { flex: none; font-size: 0.6875rem; opacity: .7; min-width: 2.4rem; text-align: right; }
#specMenu .warn { color: #ffb4b4; font-size: 0.75rem; min-height: 0; }
#specMenu .hint { margin: 0; font-size: 0.75rem; opacity: .65; line-height: 1.45; }
#specMenu .err { color: #ffb4b4; font-size: 0.75rem; }
#specMenu .roster { display: flex; flex-direction: column; gap: 0.25rem; max-height: 60vh; overflow-y: auto; }
#specMenu .row { display: flex; align-items: center; gap: 0.45rem; padding: 0.4rem 0.5rem; border-radius: 0.6rem; background: rgba(255, 255, 255, .08); font-size: 0.8125rem; font-weight: 700; }
#specMenu .row.off { opacity: .45; }
#specMenu .row .sw { width: 0.65rem; height: 0.65rem; border-radius: 50%; flex: none; }
#specMenu .row .nm { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#specMenu .row .st { font-size: 0.6875rem; opacity: .7; }
#specMenu .row .ping { font-size: 0.6875rem; min-width: 2.6rem; text-align: right; }
#specMenu .row button { border: 0; background: transparent; color: rgba(255, 255, 255, .6); font-size: 1rem; cursor: pointer; padding: 0 0.2rem; }
#specMenu .opts input, #specMenu .jtxt input { border: 0; border-radius: 0.5rem; padding: 0.4rem 0.5rem; background: rgba(255, 255, 255, .12); color: #fff; font: inherit; font-size: 0.8125rem; max-width: 9rem; }
#specMenu .jtxt button { text-align: center; }
#specMenu .chip { margin-left: 0.4rem; padding: 0.15rem 0.5rem; border-radius: 999px; background: rgba(255, 255, 255, .14); font-size: 0.6875rem; font-weight: 700; }
#specMenu .chip.green { background: #1c9a64; }
#specMenu .board { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.2rem; font-size: 0.8125rem; }
#specMenu .board li { display: flex; gap: 0.5rem; align-items: center; padding: 0.3rem 0.5rem; border-radius: 0.5rem; background: rgba(255, 255, 255, .08); }
#specMenu .board .who { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#specMenu .board .t { font-variant-numeric: tabular-nums; }
.fullhint { position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%); z-index: 12; padding: 0.55rem 1rem; border-radius: 999px; background: rgba(16, 32, 63, .88); color: #fff; font-size: 0.875rem; font-weight: 700; pointer-events: none; animation: fhin .4s ease; }
@keyframes fhin { from { opacity: 0; transform: translate(-50%, 0.6rem); } }

/* 코스 미리보기: 화면 아래에 크게. 옆 메뉴가 열려 있어도 가리지 않도록 가운데에 둔다 */
#coursePreview { position: fixed; left: 50%; bottom: 0.8rem; transform: translateX(-50%); width: min(94vw, 1400px); height: clamp(120px, 24vh, 230px); z-index: 6; pointer-events: none; display: none; }
body.tplay #coursePreview { display: none !important; }

/* 실제 코스 미리보기 창: 대기실 화면 오른쪽 아래 (코스 지도 위). 3D 그림은 이 칸 안에만 덧그린다 */
#demoView { position: fixed; right: 1rem; bottom: calc(clamp(120px, 24vh, 230px) + 1.6rem); width: min(44vw, 640px); aspect-ratio: 16 / 9; z-index: 4; display: none; pointer-events: none; border: 3px solid rgba(255, 255, 255, .85); border-radius: 6px; box-shadow: 0 0.5rem 1.5rem rgba(10, 20, 40, .35); }
#demoView span { position: absolute; left: 0; top: 0; padding: 0.25rem 0.6rem; background: rgba(16, 32, 63, .85); color: #fff; font-size: 0.75rem; font-weight: 700; }
@media (max-height: 560px) { #demoView { width: min(34vw, 420px); } }
body.tplay #demoView { display: none !important; }

/* 선생님 관전 화면: 위쪽 안내 카드는 없애고, 고른 레벨 이름만 미리보기 창 바로 위에 아주 크게 */
body.spec .lobbybar { display: none !important; }
#demoTitle { position: fixed; right: 1rem; bottom: calc(clamp(120px, 24vh, 230px) + 1.6rem + min(44vw, 640px) * 9 / 16 + 0.6rem); width: min(44vw, 640px); z-index: 4; display: none; pointer-events: none; text-align: center; padding: 0.5rem 0.8rem; border-radius: 1rem; background: rgba(16, 32, 63, .86); color: #fff; box-sizing: border-box; }
#demoTitle b { display: block; font-size: clamp(1.8rem, 4.2vw, 3.6rem); font-weight: 900; line-height: 1.15; letter-spacing: -.01em; }
#demoTitle span { display: block; transform: scale(1.5); margin-top: 0.35rem; }
@media (max-height: 560px) { #demoTitle { width: min(34vw, 420px); bottom: calc(clamp(120px, 24vh, 230px) + 1.6rem + min(34vw, 420px) * 9 / 16 + 0.6rem); } }

/* 난이도(별 점)는 제목 오른쪽에 크게 */
#demoTitle { align-items: center; justify-content: center; gap: 1rem; }
#demoTitle b { display: inline; }
#demoTitle > span { display: inline-flex; transform: none; margin: 0; }
#demoTitle .dots { display: inline-flex; gap: 0.4rem; }
#demoTitle .dots i { display: block; width: clamp(0.8rem, 1.5vw, 1.4rem); height: clamp(0.8rem, 1.5vw, 1.4rem); }
#demoTitle { gap: 1.3rem; padding: 0.5rem 1.2rem; }
#demoTitle b { font-size: clamp(1.5rem, 3.4vw, 3rem); }
/* 제목과 난이도 점이 겹치지 않게: 제목 한 줄, 그 아래에 난이도 점 */
#demoTitle { flex-direction: column; gap: 0.4rem; padding: 0.55rem 1rem 0.7rem; }
#demoTitle b { max-width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: clamp(1.5rem, 3.4vw, 3rem); }
#demoTitle .dots { gap: 0.55rem; }
#demoTitle .dots i { width: clamp(0.9rem, 1.7vw, 1.5rem); height: clamp(0.9rem, 1.7vw, 1.5rem); }
#demoTitle { bottom: calc(clamp(120px, 24vh, 230px) + 1.6rem + min(44vw, 640px) * 9 / 16 + 0.6rem); }