/* Linguanda design system: tokens, type, components. Shared by every page. */
:root{color-scheme:dark;
--bg:#17102b;--bg2:#1e1539;--bg3:#291d4a;--surface:rgba(255,255,255,.06);--surface2:rgba(255,255,255,.1);--line:rgba(255,255,255,.14);
--ink:#f6f2ff;--ink2:#bdb2dd;--accent:#a66bff;--accent-text:#c8a6ff;--on-accent:#17102b;--glow:rgba(166,107,255,.38);
--coral:#fb7185;--amber:#EA580C;--cyan:#0891B2;--emerald:#059669;
--kid-ink:#2a1840;
--display:'Bricolage Grotesque','Noto Sans KR','Noto Sans JP','Noto Sans SC','Noto Sans Arabic','Noto Sans Thai',system-ui,sans-serif;
--body:'Figtree','Noto Sans KR','Noto Sans JP','Noto Sans SC','Noto Sans Arabic','Noto Sans Thai',system-ui,sans-serif;
--mono:ui-monospace,'SF Mono',Menlo,monospace;
--r-sm:14px;--r-md:22px;--r-lg:32px;--r-xl:44px;
--s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:72px;--s9:120px}
[data-theme=light]{color-scheme:light;--bg:#f8f5ff;--bg2:#efe9ff;--bg3:#e3d9ff;--surface:#ffffff;--surface2:#f3edff;--line:rgba(23,16,43,.13);
--ink:#17102b;--ink2:#54487a;--accent-text:#6a2fd6;--glow:rgba(166,107,255,.3)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.6 var(--body);-webkit-font-smoothing:antialiased;overflow-x:clip;text-wrap:pretty}
img,svg{max-width:100%}
a{color:var(--accent-text);text-underline-offset:3px}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--accent-text);outline-offset:3px;border-radius:8px}
:lang(ja){font-family:'Noto Sans JP',var(--display)}:lang(ko){font-family:'Noto Sans KR',var(--display)}
:lang(zh){font-family:'Noto Sans SC',var(--display)}:lang(ar){font-family:'Noto Sans Arabic',var(--display)}
:lang(th){font-family:'Noto Sans Thai',var(--display)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{width:min(1200px,100% - 40px);margin-inline:auto}
.sec{padding:clamp(72px,10vw,130px) 0;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:600 .8rem/1 var(--body);letter-spacing:.12em;text-transform:uppercase;color:var(--accent-text)}
.h1{font:800 clamp(2.7rem,8.5vw,6rem)/.98 var(--display);letter-spacing:-.035em;margin:0}
.h2{font:800 clamp(2.1rem,5.4vw,3.8rem)/1.04 var(--display);letter-spacing:-.03em;margin:0}
.h3{font:700 1.5rem/1.2 var(--display);letter-spacing:-.02em;margin:0}
.lead{font-size:clamp(1.1rem,2.2vw,1.3rem);color:var(--ink2);max-width:56ch;margin:0}
.grad{background:linear-gradient(100deg,#c8a6ff,#a66bff 40%,#fb7185);-webkit-background-clip:text;background-clip:text;color:transparent}
[data-theme=light] .grad{background-image:linear-gradient(100deg,#7c3aed,#a66bff 45%,#e11d48)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:999px;font:600 1rem/1 var(--body);border:1px solid transparent;cursor:pointer;text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s;white-space:nowrap}
.btn-primary{background:var(--accent);color:var(--on-accent);box-shadow:0 10px 30px -8px var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px -8px var(--glow);color:var(--on-accent);background:#b583ff}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface2);color:var(--ink)}
.btn-sm{min-height:40px;padding:0 18px;font-size:.92rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(22px,3vw,32px)}
.field{width:100%;min-height:52px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:0 22px;font:inherit}
.field::placeholder{color:var(--ink2)}
.field:focus-visible{outline-offset:2px}
.pill{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:.9rem;color:var(--ink2)}
.chip{min-height:44px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:600 .95rem var(--body);cursor:pointer;transition:.2s}
.chip:hover{background:var(--surface2)}
.chip[aria-pressed=true]{background:var(--accent);color:var(--on-accent);border-color:transparent}
.ph{border-radius:var(--r-md);background:repeating-linear-gradient(135deg,rgba(0,0,0,.07) 0 10px,transparent 10px 20px);border:1.5px dashed currentColor;display:grid;place-items:center;text-align:center;padding:12px;font:500 .72rem/1.4 var(--mono);letter-spacing:.02em;opacity:.8}
.grain::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.07;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);transition-delay:var(--rd,0s)}
.js .reveal.in{opacity:1;transform:none}
/* nav */
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{padding:10px 14px;border-radius:999px;color:var(--ink2);text-decoration:none;font-weight:600;font-size:.95rem}
.nav-link:hover,.nav-link[aria-current=page]{color:var(--ink);background:var(--surface)}
.nav-burger{display:none}
@media(max-width:820px){.nav-links{display:none}.nav-burger{display:inline-flex}}
/* word cards */
.wc{position:absolute;display:flex;flex-direction:column;align-items:center;padding:10px 18px;border-radius:20px;background:var(--surface2);border:1px solid var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 14px 30px -14px rgba(0,0,0,.5);animation:float 7s ease-in-out infinite;animation-delay:var(--d,0s);z-index:3}
.wc b{font:700 1.4rem/1.2 var(--display)}.wc small{font-size:.78rem;color:var(--ink2)}
@media(max-width:520px){.wc{padding:7px 12px}.wc b{font-size:1.1rem}}
@keyframes float{0%,100%{transform:translateY(0) rotate(var(--r,0deg))}50%{transform:translateY(-14px) rotate(calc(var(--r,0deg) * -1))}}
@keyframes bar{0%,100%{transform:scaleY(.25)}50%{transform:scaleY(1)}}
@keyframes pulse{0%,100%{opacity:.5}50%{opacity:1}}
/* phone */
.phone{width:var(--pw,270px);aspect-ratio:9/18.6;border-radius:44px;background:#0b0716;padding:9px;position:relative;box-shadow:0 50px 90px -30px rgba(0,0,0,.65),0 0 0 1px rgba(255,255,255,.14) inset,0 0 80px -10px var(--glow)}
.phone::before{content:"";position:absolute;top:18px;left:50%;width:30%;height:20px;border-radius:99px;background:#000;transform:translateX(-50%);z-index:4}
.screen{height:100%;border-radius:36px;overflow:hidden;background:linear-gradient(180deg,#2b1c55,#17102b 70%);color:#f6f2ff;position:relative;padding:50px 16px 16px;display:flex;flex-direction:column;gap:12px;font-size:.82rem}
.bars{display:flex;align-items:center;gap:4px;height:44px}.bars i{width:5px;height:100%;border-radius:9px;background:#c8a6ff;animation:bar 1.1s ease-in-out infinite;transform-origin:center}
.bars i:nth-child(3n){animation-delay:.2s}.bars i:nth-child(3n+1){animation-delay:.45s}.bars i:nth-child(4n){animation-delay:.7s;animation-duration:.8s}
/* language tiles */
.tile{position:relative;overflow:hidden;text-align:left;min-height:190px;padding:20px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);color:var(--ink);font:inherit;cursor:pointer;transition:transform .3s,border-color .3s,box-shadow .3s;display:flex;flex-direction:column;justify-content:space-between;--c:var(--accent)}
.tile:nth-child(5n+2){--c:var(--coral)}.tile:nth-child(5n+3){--c:#22b8d6}.tile:nth-child(5n+4){--c:#f59e0b}.tile:nth-child(5n+5){--c:#10b981}
.tile:hover,.tile:focus-visible{transform:translateY(-4px);border-color:var(--c);box-shadow:0 20px 40px -20px var(--c)}
.tile .nat{font:700 1.5rem/1.2 var(--display)}
.tile .word{font:700 1.9rem/1.2 var(--display);margin-top:14px;display:block}
.tile .greet{position:absolute;inset:0;padding:20px;display:flex;flex-direction:column;justify-content:flex-end;background:var(--c);color:#17102b;transform:translateY(101%);transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.tile:hover .greet,.tile:focus .greet,.tile:focus-visible .greet{transform:none}
.tile .greet b{font:800 1.8rem/1.15 var(--display)}
/* scenario map */
.node{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:18px;background:rgba(255,255,255,.08);font-weight:600;transition:.3s}
.node:nth-child(even){margin-left:30px}.node:nth-child(odd){margin-right:30px}
.node .stamp{flex:none;width:32px;height:32px;border-radius:50%;border:2px dashed #c8a6ff;display:grid;place-items:center;font-size:.8rem}
.node[data-state=done] .stamp{background:#c8a6ff;color:#17102b;border-style:solid;transform:rotate(-8deg)}
.node[data-state=active]{background:#a66bff;color:#17102b;box-shadow:0 0 30px -4px #a66bff}.node[data-state=active] .stamp{border-color:#17102b}
.node[data-state=locked]{opacity:.45}
.step{display:flex;gap:16px;align-items:flex-start;width:100%;text-align:left;padding:18px 20px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);color:var(--ink);font:inherit;cursor:pointer;transition:.25s}
.step:hover{background:var(--surface2)}
.step[aria-pressed=true]{border-color:var(--accent);background:var(--surface2);box-shadow:0 10px 30px -14px var(--glow)}
/* faq */
details.faq{border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);padding:0 24px;transition:.2s}
details.faq[open]{background:var(--surface2)}
details.faq summary{cursor:pointer;list-style:none;padding:20px 0;font:700 1.12rem/1.35 var(--display);display:flex;justify-content:space-between;gap:16px;align-items:center;min-height:44px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font:400 1.6rem/1 var(--body);color:var(--accent-text);transition:transform .25s}
details.faq[open] summary::after{transform:rotate(45deg)}
details.faq p{margin:0 0 22px;color:var(--ink2)}
/* legal */
.legal h2{font:800 1.6rem/1.2 var(--display);margin:48px 0 12px;letter-spacing:-.02em}
.legal p{color:var(--ink2);max-width:68ch}
.toc a{display:block;padding:8px 14px;border-radius:12px;color:var(--ink2);text-decoration:none;font-size:.95rem}
.toc a:hover{background:var(--surface);color:var(--ink)}
@media(max-width:900px){.legal-grid{grid-template-columns:1fr!important}.toc-wrap{position:static!important}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.js .reveal{opacity:1;transform:none}}
/* additions for the static build */
.nav-mobile{display:none}
.nav-mobile[data-open=true]{display:grid;gap:6px;padding:8px 0 24px}
@media(min-width:821px){.nav-mobile[data-open=true]{display:none}}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--on-accent);padding:10px 16px;border-radius:99px;z-index:100}
.skip:focus{left:8px}
.brandmark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,#c8a6ff,#a66bff 55%,#7c3aed);display:grid;place-items:center;font:800 1.2rem/1 var(--display);color:#17102b;box-shadow:0 6px 18px -6px var(--glow)}
.kid-art{height:150px;border-radius:26px;display:grid;place-items:center;font-size:4rem;background:rgba(255,255,255,.45)}
.kid-art img{height:100%;width:auto;object-fit:contain}
.companion{border-radius:50%;aspect-ratio:1;background:var(--surface);border:1px solid var(--line);display:grid;place-items:center;padding:18px;overflow:hidden}
.companion img{width:100%;height:100%;object-fit:contain}
.realm-card{border-radius:36px;padding:20px;display:grid;gap:12px;color:var(--kid-ink);box-shadow:0 20px 40px -24px rgba(42,24,64,.5)}
.legal ul,.legal ol{color:var(--ink2);max-width:68ch;padding-left:1.3em}
.legal li{margin:6px 0}
.legal section:first-child h2{margin-top:0}
.notice-note{margin:0;font-size:.95rem}
@media(max-width:820px){.nav-cta{display:none}}
@media(max-width:900px){.toc-wrap{display:none}}