/* Sflix Hub — shared design system (Velvet Reel) */
:root{
  --void:#080A0F; --void-2:#0B0E15; --card:#12151F; --card-2:#171B27; --card-hi:#1E2331;
  --stroke:rgba(255,255,255,.07); --stroke-hi:rgba(255,255,255,.13);
  --velvet:#7C3AED; --velvet-hi:#9264F3; --velvet-ink:#C4B0F7; --velvet-glow:rgba(124,58,237,.45);
  --ink:#F5F3EE; --ink-2:#B6B2AC; --ink-3:#7C776F; --success:#5DE3A6;
  --font:"Geist","Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --fs-display:clamp(2.1rem,1.5rem + 2.4vw,3.2rem);
  --fs-h2:clamp(1.5rem,1.25rem + 1.1vw,2.05rem);
  --fs-h3:clamp(1.1rem,1rem + .3vw,1.28rem);
  --fs-lead:clamp(1.06rem,1rem + .45vw,1.24rem);
  --s-sec:clamp(44px,3vw + 22px,72px);
  --r-md:12px; --r-lg:16px; --r-xl:22px; --r-pill:999px;
  --shadow:0 1px 0 rgba(255,255,255,.05) inset,0 20px 50px -22px rgba(0,0,0,.7);
  --maxw:1120px; --maxw-read:760px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--void);color:var(--ink);font-family:var(--font);font-size:17px;
  line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.read{max-width:var(--maxw-read);margin:0 auto;padding:0 24px}
h1,h2,h3{margin:0;color:var(--ink);letter-spacing:-.03em;line-height:1.14;text-wrap:balance}
h1{font-size:var(--fs-display);font-weight:800;letter-spacing:-.04em;line-height:1.06}
h2{font-size:var(--fs-h2);font-weight:750;margin-top:1.6em}
h3{font-size:var(--fs-h3);font-weight:650;margin-top:1.4em}
p{margin:1rem 0;color:var(--ink-2);text-wrap:pretty}
main.article p,main.article li{color:#CFCBC4}
.lead{color:var(--ink);font-size:var(--fs-lead);line-height:1.5}
strong{color:var(--ink);font-weight:650}
ul,ol{color:#CFCBC4;padding-left:1.2em}
li{margin:.5em 0}
.link-purple{color:var(--velvet-ink);font-weight:600;text-decoration:none}
.link-purple:hover{text-decoration:underline}
hr{border:none;border-top:1px solid var(--stroke);margin:2.4em 0}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:1rem;text-decoration:none;
  padding:14px 26px;border-radius:var(--r-pill);border:1px solid transparent;cursor:pointer;
  transition:transform .16s cubic-bezier(.2,.7,.2,1),background .18s,box-shadow .22s,border-color .18s}
.btn:hover{transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:.94rem}
.btn-primary{background:var(--velvet);color:#fff;box-shadow:0 3px 14px -5px var(--velvet-glow)}
.btn-primary:hover{background:var(--velvet-hi);box-shadow:0 7px 20px -7px var(--velvet-glow)}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--ink);border-color:var(--stroke-hi)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22)}

/* header */
header.site{position:sticky;top:0;z-index:40;background:rgba(8,10,15,.82);backdrop-filter:blur(16px) saturate(1.2);
  border-bottom:1px solid var(--stroke)}
.nav{display:flex;align-items:center;gap:22px;height:66px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand .word{font-weight:900;font-size:1.5rem;letter-spacing:-.05em;color:var(--ink)}
.brand .sub{font-weight:600;font-size:.6rem;line-height:1;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3);
  border:1px solid var(--stroke-hi);padding:4px 7px 3px;border-radius:6px;transform:translateY(1px)}
.nav-links{display:flex;gap:4px;margin-left:6px}
.nav-links a{color:var(--ink-2);text-decoration:none;font-size:.94rem;padding:8px 12px;border-radius:10px;transition:color .15s,background .15s}
.nav-links a:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.nav .spacer{flex:1}
@media(max-width:820px){.nav-links{display:none}}

/* header language picker */
.lang{position:relative;flex:none}
.lang>summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:7px;padding:8px 12px;border-radius:10px;border:1px solid var(--stroke-hi);color:var(--ink-2);font-size:.9rem;background:rgba(255,255,255,.03);transition:color .15s,background .15s,border-color .15s}
.lang>summary::-webkit-details-marker{display:none}
.lang>summary::marker{content:""}
.lang>summary:hover{color:var(--ink);background:rgba(255,255,255,.07)}
.lang>summary .cv{transition:transform .2s;opacity:.7}
.lang[open]>summary{color:var(--ink)}
.lang[open]>summary .cv{transform:rotate(180deg)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);z-index:60;display:grid;grid-template-columns:1fr 1fr;gap:2px;width:340px;max-width:min(340px,86vw);max-height:min(62vh,430px);overflow:auto;padding:8px;background:var(--card-2);border:1px solid var(--stroke-hi);border-radius:14px;box-shadow:0 24px 60px -24px rgba(0,0,0,.8)}
.lang-menu a{color:var(--ink-2);text-decoration:none;font-size:.9rem;padding:9px 12px;border-radius:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lang-menu a:hover{color:var(--ink);background:rgba(255,255,255,.07)}
.lang-menu a[aria-current]{color:var(--ink);background:rgba(124,58,237,.16)}
[dir="rtl"] .lang-menu{right:auto;left:0}
@media(max-width:520px){.lang>summary .cur{display:none}}

/* article hero */
.arthero{padding:clamp(48px,6vw,84px) 0 clamp(20px,3vw,32px);position:relative;isolation:isolate}
.arthero::before{content:"";position:absolute;inset:-40% 0 auto 0;height:360px;z-index:-1;
  background:radial-gradient(60% 60% at 50% 0%,rgba(124,58,237,.14),transparent 70%)}
.crumb{display:flex;gap:8px;align-items:center;font-size:.85rem;color:var(--ink-3);margin-bottom:18px}
.crumb a{color:var(--ink-3);text-decoration:none}.crumb a:hover{color:var(--ink-2)}
.arthero h1{max-width:16ch}
.arthero .lead{margin-top:18px;max-width:60ch;color:var(--ink-2)}
.answer-chip{display:inline-flex;align-items:center;gap:9px;padding:8px 15px;border-radius:var(--r-pill);
  background:rgba(93,227,166,.08);border:1px solid rgba(93,227,166,.25);color:var(--ink);font-weight:600;font-size:.92rem;margin-bottom:20px}
.answer-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(93,227,166,.16)}
.answer-chip.warn{background:rgba(146,100,243,.1);border-color:rgba(146,100,243,.3)}
.answer-chip.warn .dot{background:var(--velvet-hi);box-shadow:0 0 0 4px rgba(146,100,243,.16)}

/* article body */
main.article{padding-bottom:var(--s-sec)}
main.article section{padding-top:8px}
.callout{margin:1.8em 0;padding:20px 22px;background:linear-gradient(180deg,var(--card),var(--void-2));
  border:1px solid var(--stroke);border-left:3px solid var(--velvet);border-radius:var(--r-lg);box-shadow:var(--shadow)}
.callout p:first-child{margin-top:0}.callout p:last-child{margin-bottom:0}
.cta-box{margin:2.2em 0;padding:26px;text-align:center;background:
  radial-gradient(120% 120% at 50% 0%,rgba(124,58,237,.16),transparent 60%),linear-gradient(180deg,var(--card-2),var(--void-2));
  border:1px solid rgba(124,58,237,.28);border-radius:var(--r-xl);box-shadow:var(--shadow)}
.cta-box h3{margin:0 0 6px}.cta-box p{margin:0 0 18px;color:var(--ink-2)}
.checks{list-style:none;padding:0;margin:1.4em 0}
.checks li{display:flex;gap:12px;align-items:flex-start;margin:.7em 0}
.checks svg{width:20px;height:20px;color:var(--velvet-ink);flex:none;margin-top:3px}

/* faq */
.faq{margin-top:2.4em}
.faq details{background:linear-gradient(180deg,var(--card),var(--void-2));border:1px solid var(--stroke);border-radius:var(--r-lg);margin-bottom:12px;overflow:hidden;transition:border-color .2s}
.faq details[open]{border-color:var(--stroke-hi)}
.faq summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:650;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";width:10px;height:10px;border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);transform:rotate(45deg);transition:transform .2s;flex:none}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq .a{padding:0 22px 20px;color:var(--ink-2)}
.faq .a p{margin:.5em 0}

/* related links */
.related{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-top:1.6em}
.related a{display:block;padding:18px 20px;text-decoration:none;background:linear-gradient(180deg,var(--card),var(--void-2));
  border:1px solid var(--stroke);border-radius:var(--r-lg);transition:transform .16s,border-color .18s}
.related a:hover{transform:translateY(-2px);border-color:var(--stroke-hi)}
.related a .t{font-weight:650;color:var(--ink);display:block;margin-bottom:3px}
.related a .d{font-size:.88rem;color:var(--ink-3)}

/* footer + locale switch */
footer.site{border-top:1px solid var(--stroke);padding:40px 0;color:var(--ink-3);font-size:.9rem;background:var(--void-2)}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot .l{display:flex;gap:4px;flex-wrap:wrap}
.foot a{color:var(--ink-2);text-decoration:none;padding:6px 10px;border-radius:8px}
.foot a:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.locales{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.locales a{font-size:.82rem;color:var(--ink-3);text-decoration:none;padding:4px 9px;border:1px solid var(--stroke);border-radius:var(--r-pill)}
.locales a:hover,.locales a[aria-current]{color:var(--ink);border-color:var(--stroke-hi)}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}