:root{--ink:#f7f8ff;--muted:rgba(240,244,255,.7);--line:rgba(255,255,255,.16);--accent:#86dfff;--safe-b:env(safe-area-inset-bottom,0px)}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden}body{font-family:Pretendard,"Noto Sans KR","Apple SD Gothic Neo",sans-serif;background:#07142c;color:var(--ink);letter-spacing:-.025em}.stars{position:fixed;inset:0;background:radial-gradient(circle at 15% 20%,#fff 0 1px,transparent 1.5px),radial-gradient(circle at 72% 31%,#8fd8ff 0 1px,transparent 1.5px),radial-gradient(circle at 47% 78%,#fff 0 1px,transparent 1.5px);background-size:81px 81px,113px 113px,147px 147px;opacity:.45;animation:drift 25s linear infinite}@keyframes drift{to{transform:translate3d(-80px,40px,0)}}button{font:inherit;color:inherit}.topbar{position:fixed;z-index:20;top:0;left:0;right:0;height:74px;padding:calc(10px + env(safe-area-inset-top,0px)) 18px 8px;display:flex;align-items:center;justify-content:space-between;background:linear-gradient(#07142c99,transparent)}.brand{border:0;background:none;display:flex;align-items:center;gap:9px;font-weight:800;font-size:15px;padding:0}.brand-mark{display:grid;place-items:center;width:29px;height:29px;border:1px solid #fff8;border-radius:50%;font-family:serif}.page-count{display:flex;align-items:baseline;gap:4px;font-size:11px;color:#ffffff82;letter-spacing:.12em}.page-count b{font-size:17px;color:#fff}.sound{display:flex;align-items:center;gap:2px;width:32px;height:32px;justify-content:center;border:1px solid #ffffff30;background:#ffffff0d;border-radius:50%}.sound i{display:block;width:2px;height:7px;background:#fff;border-radius:2px}.sound i:nth-child(2){height:12px}.sound[aria-pressed=true] i{animation:wave .7s ease-in-out infinite alternate}.sound[aria-pressed=true] i:nth-child(2){animation-delay:.2s}@keyframes wave{to{height:16px}}

.consent-locked{overscroll-behavior:none}.consent-gate{position:fixed;z-index:1000;inset:0;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 50% 25%,#183f72 0,transparent 34%),linear-gradient(155deg,#030713,#071a38 58%,#040817);color:#f7f9ff;text-align:center}.consent-gate[hidden]{display:none}.consent-gate.leaving{animation:consentOut .36s ease forwards}@keyframes consentOut{to{opacity:0;transform:scale(1.03)}}.consent-card{width:min(100%,420px);padding:34px 24px 27px;border:1px solid #a8e8ff33;border-radius:28px;background:#07152ed9;box-shadow:0 30px 90px #000a,0 0 55px #3aa9e91a;backdrop-filter:blur(18px)}.consent-domain{display:inline-block;color:#8bdfff;font-size:11px;font-weight:800;letter-spacing:.18em;text-transform:uppercase}.consent-symbol{display:grid;place-items:center;width:72px;height:72px;margin:22px auto;border:1px solid #a5e8ff99;border-radius:50%;font-family:serif;font-size:30px;box-shadow:0 0 28px #62d8ff4d,inset 0 0 20px #6bdcff21}.consent-card h1{margin:0;font-size:clamp(27px,7.5vw,37px);line-height:1.25;letter-spacing:-.055em;word-break:keep-all}.consent-card>p{margin:16px auto 0;max-width:310px;color:#b8c8dd;font-size:13px;line-height:1.65;word-break:keep-all}.consent-actions{display:grid;gap:9px;margin-top:27px}.consent-actions button{width:100%;height:52px;border-radius:15px;cursor:pointer}.consent-accept{border:0;background:linear-gradient(135deg,#78ddff,#7e8cff);color:#061128;font-weight:900;box-shadow:0 10px 30px #58bce640}.consent-decline{border:1px solid #ffffff24;background:#ffffff08;color:#bdc8d8}.consent-actions button:focus-visible{outline:3px solid #fff;outline-offset:3px}.consent-card .consent-status{min-height:20px;margin-top:12px;color:#ffbdc5;font-size:12px}
.worlds{height:100%;width:100%;display:flex;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scroll-behavior:smooth;scrollbar-width:none;overscroll-behavior-x:contain}.worlds::-webkit-scrollbar{display:none}.world{position:relative;flex:0 0 100%;height:100%;scroll-snap-align:start;overflow:hidden}.visual,.veil{position:absolute;inset:0}.visual{background-image:url("assets/world-panorama.png");background-repeat:no-repeat;background-size:auto 100%;filter:saturate(.9)}.visual-intro{background-position:48% center;transform:scale(1.08)}.visual-earth{background-position:0 center}.visual-space{background-position:35% center}.visual-growth{background-position:68% center}.visual-light{background-position:100% center}.veil{background:linear-gradient(180deg,rgba(4,12,31,.28),rgba(4,11,27,.1) 28%,rgba(3,9,24,.88) 79%,#050b1d 100%),linear-gradient(90deg,rgba(4,10,27,.2),transparent 55%,rgba(4,10,27,.18))}.world[data-tone=earth] .veil{background:linear-gradient(180deg,#06142b33,#06142b19 30%,#061425e8 82%,#06101f)}.world[data-tone=light]{color:#382b23}.world[data-tone=light] .veil{background:linear-gradient(180deg,#fff0bd18,#fff8df10 28%,#fff5d7d9 80%,#ffeec8)}
.section-content{position:absolute;z-index:2;left:0;right:0;bottom:calc(90px + var(--safe-b));padding:0 22px;max-width:520px;margin:auto}.intro-content{bottom:calc(94px + var(--safe-b));text-align:center}.eyebrow,.chapter{display:block;font-size:10px;font-weight:800;letter-spacing:.2em;color:#a9e7ff;margin-bottom:12px}.intro-content h1{font-size:clamp(35px,10vw,52px);line-height:1.16;letter-spacing:-.065em;margin:0}.intro-content h1 em{font-style:normal;color:#bceeff}.intro-content>p{font-size:14px;line-height:1.75;color:var(--muted);margin:16px 0 20px}.world-map,.steps{display:flex;align-items:center;justify-content:center;gap:8px;margin:17px 0 20px;font-size:10px;font-weight:700}.world-map i,.steps i{width:20px;height:1px;background:linear-gradient(90deg,#ffffff55,#b5eaff)}.world h2{font-size:clamp(42px,13vw,64px);line-height:1;margin:0 0 10px;letter-spacing:-.075em}.lead{font-size:14px;line-height:1.55;color:var(--muted);margin:0 0 17px}.quote{font-family:serif;font-size:19px;line-height:1.5;padding:12px 0;margin-bottom:8px;color:#e9faff}.quick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:12px 0 14px}.quick-card{border:1px solid var(--line);background:rgba(5,16,38,.53);backdrop-filter:blur(12px);border-radius:15px;padding:12px;text-align:left;min-height:69px;transition:.2s}.quick-card:active{transform:scale(.97);background:#ffffff21}.quick-card b{display:block;font-size:13px;margin-bottom:5px}.quick-card span{font-size:10px;color:#ffffff93;line-height:1.35}.primary{width:100%;height:52px;border:1px solid #a9e9ff5c;border-radius:17px;background:linear-gradient(135deg,#75ddffdd,#8d8effdc);box-shadow:0 12px 30px #2a8bcb38;font-weight:800;display:flex;align-items:center;justify-content:space-between;padding:0 18px}.primary span{font-size:20px}.vertical-line{display:flex;align-items:center;gap:13px;margin:14px 0}.vertical-line span{width:3px;height:55px;border-radius:3px;background:linear-gradient(#ffbaff,#7de5ff);box-shadow:0 0 17px #cf8cff}.vertical-line b{font-size:13px;line-height:1.55}.steps{justify-content:flex-start}.steps span{width:38px;height:38px;display:grid;place-items:center;border:1px solid #b8e9ff68;border-radius:50%;font-size:10px;background:#08152e88}.light-content .chapter,.light-content .lead{color:#5c463b}.light-content .quick-card{background:#fff7e39c;border-color:#9d754e3b;color:#493426}.light-content .quick-card span{color:#725846}.primary.dark{background:#35271e;color:#fff;border-color:#fff4}.light-orbit{position:relative;width:132px;height:96px;margin:3px auto 10px}.light-orbit b{position:absolute;inset:29px 48px;display:grid;place-items:center;background:#fff6d9;border-radius:50%;box-shadow:0 0 24px #fff;color:#6b4f31;font-size:11px}.light-orbit span{position:absolute;font-size:10px;font-weight:800}.light-orbit span:nth-child(1){left:4px;top:42px}.light-orbit span:nth-child(2){right:4px;top:42px}.light-orbit span:nth-child(3){top:0;left:55px}
.swipe-hint{position:absolute;z-index:3;bottom:calc(70px + var(--safe-b));left:0;right:0;text-align:center;font-size:10px;color:#ffffff7d}.swipe-hint span{display:inline-block;width:24px;height:1px;background:#fff9;vertical-align:middle;margin-right:5px;animation:swipe 1.5s ease-in-out infinite}@keyframes swipe{50%{transform:translateX(9px)}}.dock{position:fixed;z-index:25;bottom:calc(9px + var(--safe-b));left:50%;transform:translateX(-50%);width:min(calc(100% - 24px),490px);height:61px;display:grid;grid-template-columns:repeat(5,1fr);padding:6px;background:#061127d9;border:1px solid #ffffff1f;border-radius:21px;backdrop-filter:blur(22px);box-shadow:0 14px 35px #0007}.dock button{border:0;background:none;border-radius:15px;color:#ffffff73;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:9px}.dock button i{font-style:normal;font-size:16px}.dock button.active{background:#ffffff16;color:#fff}.world[data-tone=light]~.dock{background:#fff}
.sheet{position:fixed;inset:auto 0 0;width:min(100%,560px);height:min(82dvh,760px);margin:auto;border:1px solid #ffffff24;border-radius:26px 26px 0 0;background:#09152cf7;color:#f7f9ff;padding:15px 20px calc(30px + var(--safe-b));box-shadow:0 -20px 60px #0009;overflow:auto}.sheet::backdrop{background:#020611a8;backdrop-filter:blur(4px)}.sheet[open]{animation:up .32s cubic-bezier(.2,.8,.2,1)}@keyframes up{from{transform:translateY(100%)}to{transform:none}}.sheet-grip{width:38px;height:4px;background:#ffffff38;border-radius:3px;margin:0 auto 9px}.close{position:absolute;right:18px;top:18px;width:34px;height:34px;border:1px solid #ffffff28;border-radius:50%;background:#ffffff0e;font-size:22px}.sheet-head{padding:16px 34px 18px 2px;border-bottom:1px solid #ffffff17}.sheet-head span{font-size:10px;letter-spacing:.17em;color:#8ee4ff}.sheet-head h3{font-size:31px;margin:7px 0 9px;letter-spacing:-.055em}.sheet-head p{font-size:13px;line-height:1.6;color:#b9c6d9;margin:0}.sheet-body{display:grid;gap:10px;padding-top:17px}.detail-card{padding:17px;border:1px solid #ffffff17;border-radius:17px;background:#ffffff08}.detail-card b{font-size:14px}.detail-card p{margin:8px 0 0;color:#aebbd0;font-size:12px;line-height:1.65}.detail-card ul{margin:10px 0 0;padding-left:18px;color:#c4cede;font-size:12px;line-height:1.8}
@media(min-width:700px){body:before{content:"";position:fixed;inset:0;background:#020711;z-index:-1}.worlds{width:430px;margin:auto;box-shadow:0 0 90px #000}.topbar,.dock{max-width:430px;left:50%;right:auto;transform:translateX(-50%)}.dock{width:406px}.section-content{padding-left:25px;padding-right:25px}}
@media(max-height:720px){.section-content{bottom:calc(80px + var(--safe-b))}.world h2{font-size:38px}.quick-card{min-height:59px;padding:9px}.quote{font-size:16px;padding:6px 0}.lead{margin-bottom:9px}.primary{height:46px}.light-orbit{height:74px;transform:scale(.8);margin-top:-8px;margin-bottom:0}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important}}

/* Three selectable visual worlds */
.theme-launch{width:32px;height:32px;border:1px solid #ffffff30;background:#ffffff0d;border-radius:50%;display:grid;place-items:center;margin-left:auto;margin-right:7px}.theme-launch span{width:14px;height:14px;border-radius:50%;background:conic-gradient(#7be4ff,#a05cff,#ff8ad8,#7be4ff);box-shadow:0 0 10px var(--accent)}
.theme-picker{position:fixed;z-index:40;top:68px;right:16px;display:flex;gap:6px;padding:7px;border:1px solid #ffffff22;border-radius:17px;background:#061127e8;backdrop-filter:blur(22px);box-shadow:0 16px 40px #0008;opacity:0;transform:translateY(-8px);pointer-events:none;transition:.22s}.theme-picker.open{opacity:1;transform:none;pointer-events:auto}.theme-picker button{border:0;background:transparent;border-radius:12px;padding:7px 8px;display:grid;justify-items:center;gap:4px;font-size:8px;color:#ffffff99}.theme-picker button.active{background:#ffffff17;color:#fff}.theme-picker i{width:23px;height:15px;border-radius:8px;background:linear-gradient(135deg,#020719,#8d3cff)}.theme-picker button:nth-child(2) i{background:linear-gradient(135deg,#fff,#d9cfff)}.theme-picker button:nth-child(3) i{background:linear-gradient(135deg,#93eaff,#ffb8df)}
body[data-theme=aurora]{--accent:#9d8cff;--muted:#615e70;background:#faf9ff;color:#171625}.aurora .stars{opacity:.14}.aurora .veil{background:linear-gradient(180deg,#fff8,#fff4 35%,#faf9fff2 82%,#faf9ff)}.aurora .world:not([data-tone=light]){color:#1c1928}.aurora .world:not([data-tone=light]) .lead,.aurora .intro-content>p{color:#625e70}.aurora .eyebrow,.aurora .chapter{color:#7761c5}.aurora .quick-card{background:#ffffffb8;border-color:#8f83ba32;color:#211d2c;box-shadow:0 8px 24px #7466a313}.aurora .quick-card span{color:#746d82}.aurora .topbar{background:linear-gradient(#ffffffc9,transparent);color:#272033}.aurora .page-count,.aurora .page-count b{color:#4e465f}.aurora .dock{background:#fffffff0;border-color:#8376aa2d;box-shadow:0 14px 35px #66578920}.aurora .dock button{color:#756e82}.aurora .dock button.active{background:#eeeaff;color:#342d4b}
body[data-theme=pastel]{--accent:#34c6d4;--muted:#53627c;background:#eff9ff;color:#0c2148}.pastel .stars{opacity:.2}.pastel .veil{background:linear-gradient(180deg,#eefaff44,#f5f4ff55 37%,#f4faffed 82%,#eff9ff)}.pastel .world:not([data-tone=light]){color:#10234d}.pastel .world:not([data-tone=light]) .lead,.pastel .intro-content>p{color:#586781}.pastel .eyebrow,.pastel .chapter{color:#00aeb6}.pastel .quick-card{background:#ffffffb8;border-color:#36a6d634;color:#10234d;box-shadow:0 8px 24px #448ac519}.pastel .quick-card span{color:#63718a}.pastel .topbar{background:linear-gradient(#f8fdffd4,transparent);color:#10234d}.pastel .page-count,.pastel .page-count b{color:#3a5374}.pastel .dock{background:#fafffff0;border-color:#61a6ca30}.pastel .dock button{color:#58718e}.pastel .dock button.active{background:#dff6ff;color:#123862}
.aurora .theme-picker,.pastel .theme-picker{background:#fffffff0;border-color:#8376aa2d}.aurora .theme-picker button,.pastel .theme-picker button{color:#6a6378}.aurora .theme-picker button.active,.pastel .theme-picker button.active{background:#eeeaff;color:#241d3a}

/* Earth era full-screen portal */
.earth-portal{--portal-bg:#040817;--portal-card:#0a1027;--portal-ink:#f7f7ff;--portal-muted:#aaaec5;--portal-a:#9a4dff;position:fixed;inset:0;width:100%;height:100dvh;max-width:none;max-height:none;margin:0;padding:0 0 calc(30px + var(--safe-b));border:0;background:var(--portal-bg);color:var(--portal-ink);overflow-y:auto;overscroll-behavior:contain}.earth-portal::backdrop{background:#02040c}.earth-portal[open]{animation:portalIn .42s cubic-bezier(.2,.8,.2,1)}@keyframes portalIn{from{opacity:0;transform:translateY(18px) scale(.985)}}.portal-close{position:fixed;z-index:5;right:18px;top:calc(16px + env(safe-area-inset-top,0px));width:38px;height:38px;border:1px solid color-mix(in srgb,var(--portal-ink) 22%,transparent);border-radius:50%;background:color-mix(in srgb,var(--portal-bg) 75%,transparent);backdrop-filter:blur(14px);color:var(--portal-ink);font-size:23px}.portal-hero{position:relative;min-height:390px;padding:72px 24px 34px;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;background:radial-gradient(circle at 72% 22%,color-mix(in srgb,var(--portal-a) 45%,transparent),transparent 34%),linear-gradient(180deg,transparent,var(--portal-bg))}.portal-hero:before{content:"";position:absolute;inset:0;background:url("assets/world-panorama.png") 2% center/auto 108% no-repeat;opacity:.28;mix-blend-mode:screen}.portal-globe{position:absolute;right:-32px;top:38px;width:230px;height:230px;border-radius:50%;background:radial-gradient(circle at 35% 27%,#fff 0 1%,#66dcff 4%,#4d46d8 28%,#29117c 55%,#0c0b36 72%);box-shadow:inset -22px -18px 45px #05051f,0 0 16px #80c9ff,0 0 60px color-mix(in srgb,var(--portal-a) 60%,transparent);opacity:.88}.portal-globe:before,.portal-globe:after{content:"";position:absolute;inset:18%;border:1px solid #b5dfff7a;border-radius:50%;transform:rotate(22deg)}.portal-globe:after{inset:-12%;transform:rotate(-18deg) scaleY(.34)}.portal-globe span{position:absolute;inset:0;border-radius:50%;background:linear-gradient(90deg,transparent 48%,#bfe8ff55 50%,transparent 52%),linear-gradient(0deg,transparent 48%,#bfe8ff33 50%,transparent 52%)}.portal-kicker,.portal-hero h2,.portal-hero p{position:relative;z-index:2}.portal-kicker{font-size:12px;letter-spacing:.13em;color:color-mix(in srgb,var(--portal-a) 70%,white);font-weight:800}.portal-hero h2{font-size:clamp(45px,13vw,68px);letter-spacing:-.075em;line-height:1;margin:12px 0 17px}.portal-hero p{margin:0;color:var(--portal-muted);font-size:15px;line-height:1.7}.portal-theme-row{position:sticky;z-index:4;top:0;display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:10px 18px;background:color-mix(in srgb,var(--portal-bg) 88%,transparent);backdrop-filter:blur(18px)}.portal-theme-row button{height:34px;border:1px solid color-mix(in srgb,var(--portal-ink) 16%,transparent);border-radius:12px;background:transparent;color:var(--portal-muted);font-size:9px;letter-spacing:.13em}.portal-theme-row button.active{border-color:var(--portal-a);color:var(--portal-ink);box-shadow:inset 0 0 16px color-mix(in srgb,var(--portal-a) 20%,transparent)}.earth-zones{display:grid;gap:12px;padding:12px 14px 22px}.earth-zone{position:relative;overflow:hidden;padding:22px 17px 17px;border:1px solid color-mix(in srgb,var(--zone) 65%,transparent);border-radius:24px;background:radial-gradient(circle at 90% 5%,color-mix(in srgb,var(--zone) 27%,transparent),transparent 40%),var(--portal-card);box-shadow:0 16px 42px #0004}.earth-zone:after{content:"";position:absolute;width:145px;height:145px;right:-35px;top:-42px;border:1px solid color-mix(in srgb,var(--zone) 34%,transparent);border-radius:50%;box-shadow:inset 0 0 50px color-mix(in srgb,var(--zone) 16%,transparent)}.zone-head{position:relative;z-index:1;max-width:82%}.zone-number{font-size:28px;font-weight:900;color:var(--zone);margin-right:9px}.zone-head h3{display:inline;font-size:25px;letter-spacing:-.055em}.zone-head p{margin:11px 0 18px;color:var(--portal-muted);font-size:12px;line-height:1.55}.zone-tools{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.zone-tool{min-height:80px;padding:9px 5px;border:1px solid color-mix(in srgb,var(--zone) 38%,transparent);border-radius:13px;background:color-mix(in srgb,var(--portal-card) 78%,transparent);color:var(--portal-ink);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;text-align:center;font-size:10px;line-height:1.2}.zone-tool i{font-style:normal;font-size:22px;color:var(--zone)}.portal-footer{text-align:center;padding:13px 18px;color:color-mix(in srgb,var(--portal-a) 72%,var(--portal-ink));font-size:11px}.portal-footer span{margin:0 7px}
.earth-portal[data-theme=aurora]{--portal-bg:#fbfbfe;--portal-card:#fff;--portal-ink:#1f1a2a;--portal-muted:#6d6879;--portal-a:#9d87db}.earth-portal[data-theme=aurora] .portal-hero:before{opacity:.09;mix-blend-mode:multiply}.earth-portal[data-theme=aurora] .portal-globe{opacity:.43;background:radial-gradient(circle at 35% 27%,#fff,#d9e3ff 28%,#d4c5f3 58%,#fff 73%);box-shadow:0 0 60px #bba6e859}.earth-portal[data-theme=pastel]{--portal-bg:#f2f9ff;--portal-card:#ffffffd9;--portal-ink:#10234d;--portal-muted:#586984;--portal-a:#48bde3}.earth-portal[data-theme=pastel] .portal-hero:before{opacity:.15;mix-blend-mode:multiply}.earth-portal[data-theme=pastel] .portal-globe{opacity:.64;background:radial-gradient(circle at 35% 27%,#fff,#72e2ed 23%,#728df4 53%,#d6c4ff 74%);box-shadow:0 0 65px #62cfe75c}.earth-portal[data-theme=aurora] .earth-zone,.earth-portal[data-theme=pastel] .earth-zone{box-shadow:0 14px 34px #626b8b17}.earth-portal[data-theme=aurora] .zone-tool,.earth-portal[data-theme=pastel] .zone-tool{background:#ffffffba}
@media(min-width:700px){.theme-picker{right:calc(50% - 205px)}.earth-portal{width:430px;left:50%;right:auto;transform:translateX(-50%)}.earth-portal[open]{animation:none}.portal-close{right:calc(50% - 196px)}}

/* Narrow mobile viewport safeguards */
.intro-content h1{font-size:clamp(34px,9vw,48px)}
.intro-content h1 em{display:block}
.dock{width:calc(100% - 24px);max-width:490px;grid-template-columns:repeat(5,minmax(0,1fr))}
.dock button{min-width:0}

/* Illustrated landing-page composition inside every popup */
.sheet{inset:12px 8px calc(10px + var(--safe-b));width:calc(100% - 16px);height:auto;max-height:calc(100dvh - 22px - var(--safe-b));padding:0 13px 28px;border-radius:26px;margin:auto;scrollbar-width:none;background-color:#030716}.sheet::-webkit-scrollbar{display:none}.sheet::backdrop{background:#01030bd9}.sheet-grip{position:sticky;z-index:9;top:7px;margin:7px auto -11px;background:#ffffff5e}.sheet .close{position:sticky;z-index:10;display:block;top:12px;margin:0 0 -40px auto;background:#030716aa;backdrop-filter:blur(12px)}.sheet-hero-art{position:relative;height:315px;margin:0 -13px;overflow:hidden;border-radius:25px 25px 0 0;background-image:linear-gradient(180deg,transparent 45%,#050918 96%),url("assets/world-panorama.png");background-size:auto 116%;background-position:0 center;background-repeat:no-repeat}.sheet-hero-art i{position:absolute;width:174px;height:174px;right:15px;top:55px;border:1px solid var(--sheet-accent);border-radius:50%;box-shadow:0 0 18px var(--sheet-accent),0 0 65px var(--sheet-glow),inset -22px -16px 42px #09052399}.sheet-hero-art i:before,.sheet-hero-art i:after{content:"";position:absolute;inset:15%;border:1px solid #ffffff66;border-radius:50%;transform:rotate(35deg)}.sheet-hero-art i:after{inset:-13%;transform:rotate(-16deg) scaleY(.34)}.sheet-hero-art b{position:absolute;right:74px;top:108px;width:54px;height:54px;border:1px solid #ffffff8a;border-radius:50%;box-shadow:inset 0 0 22px var(--sheet-accent),0 0 18px var(--sheet-accent)}.sheet-head{position:relative;z-index:2;min-height:190px;margin:-184px 0 0;padding:46px 48% 25px 9px;border:0;background:linear-gradient(90deg,#050918 0 42%,transparent 78%)}.sheet-head h3{font-size:clamp(34px,10vw,48px);line-height:1.03;margin:12px 0 14px;word-break:keep-all}.sheet-head p{font-size:12px;line-height:1.65}.sheet-signal{display:flex;align-items:center;gap:5px;margin-top:14px}.sheet-signal i{display:block;width:5px;height:5px;border:1px solid var(--sheet-accent);transform:rotate(45deg)}.sheet-signal i:first-child{background:var(--sheet-accent);box-shadow:0 0 9px var(--sheet-accent)}.sheet-signal:after{content:"";width:45px;height:1px;background:linear-gradient(90deg,var(--sheet-accent),transparent)}.sheet-body{display:grid;gap:11px;padding:12px 0}.detail-card{min-height:270px;padding:20px 14px 13px;border-radius:21px;background:linear-gradient(120deg,#080d20 0 54%,transparent 80%),#050918;box-shadow:none}.detail-card:after{display:none}.detail-copy{position:relative;z-index:3;width:66%}.detail-number{display:inline-block;font-size:27px;margin:0 8px 0 0;vertical-align:middle}.detail-copy b{font-size:23px;vertical-align:middle;letter-spacing:-.055em}.detail-copy p{margin:10px 0 0;font-size:11px;line-height:1.55}.detail-scene{position:absolute;right:0;top:0;width:60%;height:72%;background-image:linear-gradient(90deg,#050918,transparent 40%),url("assets/world-panorama.png");background-size:auto 145%;background-repeat:no-repeat;background-position:0 center;opacity:.82}.detail-card:nth-child(2) .detail-scene{background-position:34% center}.detail-card:nth-child(3) .detail-scene{background-position:68% center}.detail-card:nth-child(4) .detail-scene{background-position:100% center}.detail-scene:after{content:"";position:absolute;inset:auto 0 0;height:45%;background:linear-gradient(transparent,#050918)}.detail-scene i{position:absolute;right:18%;top:18%;width:78px;height:78px;border:1px solid var(--sheet-accent);border-radius:50%;box-shadow:0 0 35px var(--sheet-accent)}.detail-actions{position:absolute;z-index:3;left:13px;right:13px;bottom:13px;display:flex;gap:6px;overflow-x:auto;margin:0;scrollbar-width:none}.detail-actions button{flex:0 0 74px;width:74px;min-height:73px;padding:8px 4px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;border-radius:11px;background:#050919c9}.detail-actions i{margin:0;font-size:20px}.detail-actions span{font-size:9px;word-break:keep-all}.sheet-ending{text-align:center;padding:19px 5px 8px;color:var(--sheet-accent);font-size:10px}.sheet-ending span{margin:0 5px}.sheet[data-world=space] .sheet-hero-art{background-position:35% center;filter:hue-rotate(20deg)}.sheet[data-world=growth] .sheet-hero-art{background-position:68% center;filter:hue-rotate(75deg)}.sheet[data-world=light] .sheet-hero-art{background-position:100% center;filter:saturate(.7) brightness(1.18)}.sheet[data-world=intro] .sheet-hero-art{background-position:48% center}.sheet[data-world=space] .detail-scene{filter:hue-rotate(30deg)}.sheet[data-world=growth] .detail-scene{filter:hue-rotate(90deg)}.sheet[data-world=light] .detail-scene{filter:saturate(.65) sepia(.18) brightness(1.14)}
@media(min-width:700px){.sheet{width:min(calc(100% - 32px),1060px);max-width:1060px;padding-left:20px;padding-right:20px}.sheet-hero-art{height:390px;margin-left:-20px;margin-right:-20px;background-size:cover}.sheet-head{min-height:230px;margin-top:-230px;padding:65px 55% 35px 28px}.detail-card{min-height:245px;padding:27px}.detail-copy{width:46%}.detail-actions{left:26px;right:26px;bottom:22px}.detail-actions button{flex-basis:90px;width:90px}.detail-scene{width:58%;height:100%}}

/* Official embedded BGM selector */
.bgm-picker{position:fixed;z-index:55;top:68px;right:12px;width:min(360px,calc(100% - 24px));padding:12px;border:1px solid #b7ecff3d;border-radius:22px;background:linear-gradient(145deg,#102849e8,#071329ed);color:#f7f9ff;box-shadow:inset 0 1px 0 #ffffff24,0 22px 65px #010611b3;backdrop-filter:blur(24px) saturate(145%);-webkit-backdrop-filter:blur(24px) saturate(145%);opacity:0;transform:translateY(-9px) scale(.97);transform-origin:top right;pointer-events:none;transition:opacity .25s ease,transform .35s cubic-bezier(.2,.8,.2,1)}.bgm-picker.open{opacity:1;transform:none;pointer-events:auto}.bgm-head{height:30px;display:flex;align-items:flex-start;justify-content:space-between;padding:0 2px}.bgm-head>span{font-size:9px;font-weight:900;letter-spacing:.18em;color:#9ce8ff}.bgm-head>span i{display:inline-block;width:6px;height:6px;margin-right:5px;border-radius:50%;background:#7de3ff;box-shadow:0 0 10px #7de3ff}.bgm-head button{width:26px;height:26px;margin-top:-4px;border:1px solid #ffffff24;border-radius:50%;background:#ffffff09;color:#fff;font-size:18px;line-height:1}.bgm-tracks{display:grid;grid-template-columns:1fr 1fr;gap:7px}.bgm-tracks button{min-width:0;height:58px;padding:8px 9px;border:1px solid #ffffff17;border-radius:14px;background:#ffffff08;color:#aebed2;display:grid;grid-template-columns:27px 1fr 15px;align-items:center;text-align:left;transition:.2s}.bgm-tracks button.active{border-color:#85e4ff78;background:linear-gradient(135deg,#66ddff20,#7588ff25);color:#fff;box-shadow:inset 0 0 18px #68d9ff12}.bgm-tracks b{font-size:17px;color:#8be5ff}.bgm-tracks span{overflow:hidden;font-size:8px;font-weight:800;letter-spacing:.04em;white-space:nowrap;text-overflow:ellipsis}.bgm-tracks i{font-style:normal;font-size:10px;color:#8be5ff}.bgm-player-wrap{position:relative;height:270px;margin-top:9px;overflow:hidden;border:1px solid #ffffff17;border-radius:15px;background:#030915}.bgm-player-wrap iframe{width:100%;height:100%;border:0;background:#030915}.bgm-player-wrap p{position:absolute;left:0;right:0;bottom:0;margin:0;padding:7px;background:#020713d9;color:#ffffff8c;font-size:8px;text-align:center;pointer-events:none}.sound[aria-expanded=true]{border-color:#8ce5ff99;background:#72ddff24;box-shadow:0 0 18px #68dfff38}.aurora .bgm-picker,.pastel .bgm-picker{background:#fffffff2;color:#241e31;border-color:#8072a934;box-shadow:0 20px 55px #4d54712d}.aurora .bgm-tracks button,.pastel .bgm-tracks button{color:#70697d;border-color:#7c70a326;background:#f6f3ff}.aurora .bgm-tracks button.active,.pastel .bgm-tracks button.active{color:#241e31;background:#eceaff;border-color:#8b7ec267}@media(min-width:700px){.bgm-picker{right:calc(50% - 215px)}}@media(max-height:650px){.bgm-player-wrap{height:220px}}

/* Taller BGM player surface */
.bgm-player-wrap{height:min(430px,calc(100dvh - 190px));min-height:330px}
@media(max-height:650px){.bgm-player-wrap{height:310px;min-height:310px}}

/* Rotating floating help menu */
.help-wheel{--rotation:0deg;position:fixed;z-index:60;right:10px;top:50%;width:64px;height:64px;transform:translateY(-50%);isolation:isolate}.help-toggle{position:absolute;z-index:3;inset:0;width:64px;height:64px;padding:0;border:1px solid #a8e9ff8c;border-radius:50%;background:radial-gradient(circle at 35% 25%,#7ce5ff,#596ee6 58%,#39278d);color:#fff;display:grid;place-content:center;gap:1px;text-align:center;box-shadow:0 8px 28px #17227199,0 0 24px #72dcff4d;cursor:pointer;transition:transform .35s ease,box-shadow .35s ease}.help-toggle-icon{font-size:20px;font-weight:500;line-height:1}.help-toggle b{font-size:10px}.help-wheel.open .help-toggle{transform:rotate(180deg);box-shadow:0 5px 20px #17227180,0 0 36px #72dcff80}.help-orbit{position:absolute;z-index:2;inset:-142px -8px -142px -230px;touch-action:none;pointer-events:none}.help-item{--angle:calc(-75deg + (var(--i) * 30deg));position:absolute;right:8px;top:50%;width:66px;height:66px;margin-top:-33px;padding:5px;border:1px solid #a9e8ff55;border-radius:50%;background:#07152ee8;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;text-align:center;box-shadow:0 8px 24px #0008,0 0 17px #63d7ff24;backdrop-filter:blur(14px);opacity:0;pointer-events:none;transform:rotate(calc(var(--angle) + var(--rotation))) translateX(0) rotate(calc((var(--angle) + var(--rotation)) * -1)) scale(.35);transition:transform .55s cubic-bezier(.2,.8,.2,1),opacity .3s ease,background .2s;transition-delay:calc(var(--i) * 35ms);cursor:pointer}.help-item i{font-style:normal;font-size:15px;font-weight:900;color:#92e8ff;line-height:1}.help-item span{font-size:9px;font-weight:800;line-height:1.05;word-break:keep-all}.help-item.kakao{border-color:#fee50099}.help-item.kakao i{color:#fee500}.help-wheel.open .help-orbit{pointer-events:auto}.help-wheel.open .help-item{opacity:1;pointer-events:auto;transform:rotate(calc(var(--angle) + var(--rotation))) translateX(-116px) rotate(calc((var(--angle) + var(--rotation)) * -1)) scale(1)}.help-item:active{background:#16406c}.help-toggle:focus-visible,.help-item:focus-visible{outline:3px solid #fff;outline-offset:3px}
.help-sheet{width:min(calc(100% - 32px),390px);margin:auto;padding:30px 24px 24px;border:1px solid #9fe6ff4d;border-radius:28px;background:radial-gradient(circle at 70% 0,#3d56b04d,transparent 42%),#071329f5;color:#f7f9ff;text-align:center;box-shadow:0 28px 80px #000b}.help-sheet::backdrop{background:#020611b8;backdrop-filter:blur(5px)}.help-sheet[open]{animation:helpSheetIn .3s cubic-bezier(.2,.8,.2,1)}@keyframes helpSheetIn{from{opacity:0;transform:translateY(18px) scale(.96)}}.help-sheet-close{position:absolute;right:15px;top:15px;width:34px;height:34px;border:1px solid #ffffff2b;border-radius:50%;background:#ffffff0b;color:#fff;font-size:22px}.help-sheet-icon{display:grid;place-items:center;width:70px;height:70px;margin:2px auto 18px;border:1px solid #9fe9ff87;border-radius:50%;background:#ffffff0a;color:#93e9ff;font-size:23px;font-weight:900;box-shadow:0 0 28px #61d9ff38}.help-sheet-kicker{margin:0;color:#86dfff;font-size:9px;font-weight:900;letter-spacing:.2em}.help-sheet h2{margin:8px 0 12px;font-size:27px;letter-spacing:-.055em}.help-sheet>p:not(.help-sheet-kicker){min-height:50px;margin:0;color:#b9c9dc;font-size:13px;line-height:1.65;word-break:keep-all}.help-sheet-action{width:100%;height:50px;margin-top:22px;border:0;border-radius:15px;background:linear-gradient(135deg,#78ddff,#7d8cff);color:#071329;font-weight:900}.aurora .help-item,.pastel .help-item{background:#fffffff0;color:#251f35;border-color:#8171ae4d}.aurora .help-sheet,.pastel .help-sheet{background:#fcfbfff5;color:#241e31;border-color:#8171ae42}.aurora .help-sheet>p:not(.help-sheet-kicker),.pastel .help-sheet>p:not(.help-sheet-kicker){color:#6b6578}@media(min-width:700px){.help-wheel{right:calc(50% - 215px)}}@media(max-width:380px){.help-wheel{right:7px}.help-wheel.open .help-item{transform:rotate(calc(var(--angle) + var(--rotation))) translateX(-103px) rotate(calc((var(--angle) + var(--rotation)) * -1)) scale(.92)}}

.help-item{transform:rotate(var(--angle)) translateX(0) rotate(var(--counter-angle)) scale(.35)}
.help-wheel.open .help-item{transform:rotate(var(--angle)) translateX(-116px) rotate(var(--counter-angle)) scale(1)}
@media(max-width:380px){.help-wheel.open .help-item{transform:rotate(var(--angle)) translateX(-103px) rotate(var(--counter-angle)) scale(.92)}}

/* Refined translucent help controls */
.help-toggle{border-color:#d7f5ff70;background:linear-gradient(145deg,#aeeeff45,#667bdf55 55%,#40318d66);backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);box-shadow:inset 0 1px 0 #ffffff70,inset 0 -1px 0 #7289da33,0 10px 32px #07132d66,0 0 20px #79ddff30;transition:transform .55s cubic-bezier(.2,.8,.2,1),background .3s ease,box-shadow .3s ease}.help-wheel.open .help-toggle{transform:rotate(360deg);background:linear-gradient(145deg,#b8f1ff55,#6d7fe966 58%,#49399773);box-shadow:inset 0 1px 0 #ffffff80,0 8px 25px #07132d70,0 0 30px #72dcff48}.help-toggle-icon{font-size:18px;font-weight:700}.help-toggle b{font-size:10px;font-weight:800;letter-spacing:.02em}.help-item{border-color:#d9f5ff52;background:linear-gradient(145deg,#16315aab,#09172baa);backdrop-filter:blur(20px) saturate(145%);-webkit-backdrop-filter:blur(20px) saturate(145%);box-shadow:inset 0 1px 0 #ffffff3b,0 10px 28px #0107147a,0 0 0 1px #6cdcff0a;transition:transform .55s cubic-bezier(.2,.8,.2,1),opacity .3s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease}.help-item:hover,.help-item:focus-visible{border-color:#b8efffa8;background:linear-gradient(145deg,#244b7ed9,#102442d9);box-shadow:inset 0 1px 0 #ffffff5c,0 12px 32px #0107148c,0 0 22px #67dbff35}.help-item i{width:23px;height:23px;display:grid;place-items:center;color:#a9ecff}.help-item svg{width:22px;height:22px;overflow:visible;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}.help-item[data-help=deep] svg,.help-item[data-help=kakao] svg{fill:currentColor;stroke:none}.help-item span{font-size:9px;font-weight:750;line-height:1.08;letter-spacing:-.02em}.help-item.kakao{background:linear-gradient(145deg,#4c492eb8,#282816b5);border-color:#fee5007d}.help-item.kakao i{color:#fee500}.aurora .help-item,.pastel .help-item{background:#ffffffb8;border-color:#ffffffd6;box-shadow:inset 0 1px 0 #fff,0 10px 30px #414c701f;color:#272139}.aurora .help-toggle,.pastel .help-toggle{background:linear-gradient(145deg,#ffffff9c,#b9c9f77d);border-color:#fff;box-shadow:inset 0 1px 0 #fff,0 10px 30px #46517432,0 0 20px #7bcbe22e}

/* Five world popups */
.sheet{--sheet-accent:#86dfff;--sheet-glow:#4c5cff;background:radial-gradient(circle at 85% 4%,color-mix(in srgb,var(--sheet-glow) 34%,transparent),transparent 25%),#09152cf7}.sheet[data-world=intro]{--sheet-accent:#9ae9ff;--sheet-glow:#4967e8}.sheet[data-world=earth]{--sheet-accent:#b06cff;--sheet-glow:#7629da}.sheet[data-world=space]{--sheet-accent:#6d8dff;--sheet-glow:#8c38d5}.sheet[data-world=growth]{--sheet-accent:#4bd3b5;--sheet-glow:#237e9f}.sheet[data-world=light]{--sheet-accent:#f0c266;--sheet-glow:#d9884b}.sheet-head span{color:var(--sheet-accent)}.detail-card{position:relative;overflow:hidden;background:linear-gradient(135deg,color-mix(in srgb,var(--sheet-accent) 9%,transparent),#ffffff06);border-color:color-mix(in srgb,var(--sheet-accent) 29%,transparent)}.detail-card:after{content:"";position:absolute;right:-38px;top:-48px;width:115px;height:115px;border:1px solid color-mix(in srgb,var(--sheet-accent) 24%,transparent);border-radius:50%}.detail-number{display:block;color:var(--sheet-accent);font-size:22px;font-weight:900;margin-bottom:8px}.detail-card b{position:relative;z-index:1;font-size:18px}.detail-actions{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,1fr);gap:7px;margin-top:14px}.detail-actions button{min-height:48px;border:1px solid color-mix(in srgb,var(--sheet-accent) 30%,transparent);border-radius:12px;background:#ffffff08;color:inherit;padding:8px;text-align:left;font-size:10px;line-height:1.3}.detail-actions i{font-style:normal;color:var(--sheet-accent);margin-right:6px}.detail-actions button:active{background:color-mix(in srgb,var(--sheet-accent) 19%,transparent);transform:scale(.98)}.aurora .sheet,.pastel .sheet{color:#211c2d;background:radial-gradient(circle at 85% 4%,color-mix(in srgb,var(--sheet-glow) 14%,transparent),transparent 28%),#fcfbfff8;border-color:#8475ac31}.aurora .sheet-head p,.pastel .sheet-head p,.aurora .detail-card p,.pastel .detail-card p{color:#6b6576}.aurora .detail-card,.pastel .detail-card{background:#ffffffb8;box-shadow:0 10px 28px #5d527b12}.aurora .close,.pastel .close{color:#272033;border-color:#786c9730}