/* ==========================================================================
   ArioPlay — Core stylesheet
   Author: Grant Storm (gstorm@arioplay.biz)
   Design: "Midnight Jade" — dark-first, zero-dependency, no webfonts.
   ========================================================================== */

:root{
  --ink:#060910;
  --surface:#0d1421;
  --surface-2:#131e30;
  --surface-3:#1a2841;
  --line:#22314c;
  --line-soft:#1a2539;

  --gold:#ffc247;
  --gold-deep:#e0991c;
  --jade:#2ee6a8;
  --jade-deep:#12b585;
  --violet:#7d6cff;        /* surfaces & gradients only */
  --violet-text:#a89bff;   /* text use — WCAG AA on our dark panels */
  --rose:#ff5d7a;

  --text:#e8eefa;
  --muted:#9dabc4;
  --faint:#8b9ab4;         /* AA (>=4.5:1) on ink, surface, surface-2 and surface-3 */

  --radius:14px;
  --radius-lg:22px;
  --maxw:1180px;
  --gutter:20px;

  --shadow:0 18px 44px -22px rgba(0,0,0,.85);
  --shadow-lift:0 26px 60px -26px rgba(0,0,0,.95);

  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:90px;
}

body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.7;
  color:var(--text);
  background:var(--ink);
  background-image:
    radial-gradient(900px 500px at 12% -8%,rgba(125,108,255,.16),transparent 60%),
    radial-gradient(800px 460px at 92% 4%,rgba(46,230,168,.12),transparent 62%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img,svg{max-width:100%;height:auto;display:block}

/* Inline links are underlined by default so they are distinguishable by more
   than colour alone (WCAG 1.4.1). UI links opt out via .btn/.nav/.linklist etc. */
a{
  color:var(--jade);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
a:hover{text-decoration-thickness:2px}

.btn,.logo,.nav a,.linklist a,.footer ul a,.post-card h3 a,
.img-link,.skip,.toc a,.faq-item summary a{text-decoration:none}
.btn:hover,.logo:hover,.nav a:hover,.linklist a:hover,
.footer ul a:hover,.post-card h3 a:hover,.img-link:hover{text-decoration:none}
.toc a:hover,.faq-item summary a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
  border-radius:4px;
}

h1,h2,h3,h4{line-height:1.2;margin:0 0 .6em;font-weight:800;letter-spacing:-.02em}
h1{font-size:clamp(2rem,5.2vw,3.35rem)}
h2{font-size:clamp(1.5rem,3.4vw,2.15rem)}
h3{font-size:clamp(1.18rem,2.2vw,1.42rem)}
h4{font-size:1.05rem}
p{margin:0 0 1.15em}
ul,ol{margin:0 0 1.15em;padding-left:1.3em}
li{margin-bottom:.5em}
strong{color:#fff;font-weight:700}
hr{border:0;height:1px;background:var(--line);margin:2.6rem 0}
small{font-size:.86rem}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.narrow{max-width:800px}
.skip{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--gold);color:#12100a;padding:12px 18px;font-weight:700;border-radius:0 0 10px 0;
}
.skip:focus{left:0}

/* ---------- Header ---------------------------------------------------- */

.masthead{
  position:sticky;top:0;z-index:50;
  background:rgba(6,9,16,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.masthead__bar{
  display:flex;align-items:center;gap:18px;
  min-height:72px;
}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;text-decoration:none}
.logo:hover{text-decoration:none}
.logo__mark{
  width:38px;height:38px;flex-shrink:0;
  border-radius:11px;
  background:linear-gradient(145deg,var(--gold),var(--gold-deep) 55%,#a86f09);
  display:grid;place-items:center;
  font-weight:900;font-size:19px;color:#1a1204;
  box-shadow:0 6px 18px -6px rgba(255,194,71,.6);
}
.logo__text{font-weight:900;font-size:1.28rem;letter-spacing:-.035em;color:#fff;line-height:1}
.logo__text span{color:var(--jade)}
.logo__tag{display:block;font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--faint);font-weight:700;margin-top:3px}

.nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav a{
  color:var(--muted);font-weight:600;font-size:.94rem;
  padding:9px 13px;border-radius:9px;white-space:nowrap;
}
.nav a:hover,.nav a[aria-current="page"]{color:#fff;background:var(--surface-2);text-decoration:none}
.nav a[aria-current="page"]{color:var(--gold)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:800;font-size:.95rem;letter-spacing:.01em;
  padding:13px 24px;border-radius:11px;border:1px solid transparent;
  cursor:pointer;text-align:center;line-height:1.2;
}
.btn:hover{text-decoration:none}
.btn--gold{
  background:linear-gradient(145deg,#ffd166,var(--gold) 45%,var(--gold-deep));
  color:#1b1305;
  box-shadow:0 10px 26px -12px rgba(255,194,71,.75);
}
.btn--gold:hover{filter:brightness(1.07)}
.btn--jade{
  background:linear-gradient(145deg,var(--jade),var(--jade-deep));
  color:#04150f;
  box-shadow:0 10px 26px -12px rgba(46,230,168,.7);
}
.btn--jade:hover{filter:brightness(1.07)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--jade);color:var(--jade)}
.btn--sm{padding:10px 17px;font-size:.87rem}
.btn--wide{width:100%}
.masthead .btn{flex-shrink:0}

/* CSS-only mobile menu (no JavaScript anywhere on this site) */
.nav-toggle{position:absolute;opacity:0;pointer-events:none;width:0;height:0}
.nav-label{
  display:none;
  width:44px;height:44px;border-radius:11px;
  border:1px solid var(--line);background:var(--surface-2);
  cursor:pointer;place-items:center;flex-shrink:0;
}
.nav-label > span:first-child,
.nav-label > span:first-child::before,
.nav-label > span:first-child::after{
  display:block;width:19px;height:2px;background:var(--text);border-radius:2px;content:"";position:relative;
}
.nav-label > span:first-child::before{position:absolute;top:-6px}
.nav-label > span:first-child::after{position:absolute;top:6px}

/* ---------- Hero ------------------------------------------------------ */

.hero{position:relative;padding:74px 0 66px;overflow:hidden}
.hero::after{
  content:"";position:absolute;inset:auto 0 -1px 0;height:120px;
  background:linear-gradient(to bottom,transparent,var(--ink));
  pointer-events:none;
}
.hero__grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;
  position:relative;z-index:1;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.73rem;font-weight:800;letter-spacing:.17em;text-transform:uppercase;
  color:var(--jade);
  background:rgba(46,230,168,.09);
  border:1px solid rgba(46,230,168,.28);
  padding:7px 15px;border-radius:999px;margin-bottom:22px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--jade)}
.hero h1{margin-bottom:.45em}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(105deg,var(--gold) 10%,#ffe6a8 50%,var(--gold-deep));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{font-size:1.1rem;color:var(--muted);max-width:56ch}
.hero__cta{display:flex;flex-wrap:wrap;gap:13px;margin:30px 0 26px}
.hero__stats{display:flex;flex-wrap:wrap;gap:28px;padding-top:24px;border-top:1px solid var(--line-soft)}
.stat b{display:block;font-size:1.55rem;color:var(--gold);letter-spacing:-.03em;line-height:1.1}
.stat span{font-size:.79rem;color:var(--faint);text-transform:uppercase;letter-spacing:.11em;font-weight:700}
.hero__art{position:relative}
.hero__art img{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  box-shadow:var(--shadow-lift);
}

/* ---------- Sections -------------------------------------------------- */

.section{padding:66px 0;position:relative}
.section--alt{
  background:linear-gradient(180deg,rgba(19,30,48,.6),rgba(13,20,33,.25));
  border-block:1px solid var(--line-soft);
}
.section__head{max-width:660px;margin-bottom:38px}
.section__head p{color:var(--muted);margin-bottom:0}
.section__head--center{margin-inline:auto;text-align:center}

.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

.card{
  background:linear-gradient(165deg,var(--surface-2),var(--surface));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow);
  position:relative;
}
.card h3{margin-bottom:.45em}
.card p:last-child{margin-bottom:0}
.card--accent{border-color:rgba(255,194,71,.4)}
.card__icon{
  width:44px;height:44px;border-radius:12px;margin-bottom:18px;
  display:grid;place-items:center;font-size:20px;
  background:var(--surface-3);border:1px solid var(--line);
}
.card__num{
  font-family:var(--mono);font-size:.8rem;font-weight:700;color:var(--gold);
  letter-spacing:.1em;margin-bottom:10px;display:block;
}

/* ---------- Article cards --------------------------------------------- */

.post-card{
  display:flex;flex-direction:column;
  background:linear-gradient(165deg,var(--surface-2),var(--surface));
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
}
.post-card__body{padding:24px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:1.14rem;margin-bottom:.5em}
.post-card h3 a{color:#fff}
.post-card h3 a:hover{color:var(--gold);text-decoration:none}
.post-card p{color:var(--muted);font-size:.94rem;flex:1}
.post-card__meta{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  font-size:.76rem;color:var(--faint);text-transform:uppercase;letter-spacing:.09em;font-weight:700;
  margin-top:14px;padding-top:14px;border-top:1px solid var(--line-soft);
}
.tag{
  display:inline-block;font-size:.69rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase;
  color:var(--violet-text);background:rgba(125,108,255,.12);border:1px solid rgba(125,108,255,.3);
  padding:5px 11px;border-radius:999px;margin-bottom:13px;align-self:flex-start;
}
.tag--jade{color:var(--jade);background:rgba(46,230,168,.1);border-color:rgba(46,230,168,.3)}
.tag--gold{color:var(--gold);background:rgba(255,194,71,.1);border-color:rgba(255,194,71,.3)}

/* ---------- Article body ---------------------------------------------- */

.page-head{padding:54px 0 30px;border-bottom:1px solid var(--line-soft)}
.crumbs{font-size:.83rem;color:var(--faint);margin-bottom:18px}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 8px;opacity:.5}

.byline{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:24px;padding:16px 20px;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);
  font-size:.88rem;color:var(--muted);
}
.byline__av{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(145deg,var(--violet),var(--jade-deep));
  display:grid;place-items:center;font-weight:900;color:#06120d;font-size:15px;
}
.byline b{color:#fff}
.byline__sep{color:var(--line);}
.updated{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--jade);font-weight:700;font-size:.82rem;
}
.updated::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--jade);box-shadow:0 0 0 3px rgba(46,230,168,.18)}

.prose{padding:40px 0 56px;font-size:1.03rem}
.prose h2{margin-top:2.1em;padding-top:.2em}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:1.7em;color:var(--gold)}
.prose figure{margin:2.2rem 0}
.prose figure img{border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow)}
.prose figcaption{font-size:.85rem;color:var(--faint);text-align:center;margin-top:12px;font-style:italic}
.prose a:hover{color:var(--gold)}
.prose ul li::marker{color:var(--jade)}
.prose ol li::marker{color:var(--gold);font-weight:800}

.toc{
  background:var(--surface-2);border:1px solid var(--line);
  border-left:3px solid var(--gold);
  border-radius:var(--radius);padding:22px 26px;margin-bottom:38px;
}
.toc b{display:block;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:12px}
.toc ol{margin:0;padding-left:1.2em;columns:2;column-gap:32px}
.toc li{font-size:.93rem;margin-bottom:.4em;break-inside:avoid}

.callout{
  background:linear-gradient(150deg,rgba(125,108,255,.13),rgba(46,230,168,.07));
  border:1px solid rgba(125,108,255,.32);
  border-radius:var(--radius);padding:24px 26px;margin:2rem 0;
}
.callout b{color:var(--violet-text)}
.callout p:last-child{margin-bottom:0}
.callout--warn{background:linear-gradient(150deg,rgba(255,93,122,.12),rgba(255,194,71,.06));border-color:rgba(255,93,122,.35)}
.callout--warn b{color:var(--rose)}
.callout--gold{background:linear-gradient(150deg,rgba(255,194,71,.13),rgba(255,194,71,.03));border-color:rgba(255,194,71,.34)}
.callout--gold b{color:var(--gold)}

.table-wrap{overflow-x:auto;margin:2rem 0;border:1px solid var(--line);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:.93rem;min-width:520px}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line-soft)}
th{background:var(--surface-3);font-size:.76rem;letter-spacing:.11em;text-transform:uppercase;color:var(--gold);font-weight:800}
tbody tr:last-child td{border-bottom:0}
tbody tr:nth-child(even){background:rgba(19,30,48,.45)}

/* ---------- FAQ (CSS-only accordion) ---------------------------------- */

.faq-item{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius);margin-bottom:12px;overflow:hidden;
}
.faq-item summary{
  cursor:pointer;padding:19px 22px;font-weight:700;color:#fff;
  list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:flex-start;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";color:var(--gold);font-size:1.4rem;line-height:1;flex-shrink:0;font-weight:400;
}
.faq-item[open] summary::after{content:"\2212"}
.faq-item[open] summary{border-bottom:1px solid var(--line-soft)}
.faq-item__a{padding:19px 22px;color:var(--muted);font-size:.96rem}
.faq-item__a p:last-child{margin-bottom:0}

/* ---------- CTA band --------------------------------------------------- */

.cta-band{
  background:
    linear-gradient(140deg,rgba(255,194,71,.14),rgba(125,108,255,.12) 55%,rgba(46,230,168,.12));
  border:1px solid rgba(255,194,71,.28);
  border-radius:var(--radius-lg);
  padding:44px;text-align:center;
  box-shadow:var(--shadow-lift);
}
.cta-band h2{margin-bottom:.4em}
.cta-band p{color:var(--muted);max-width:58ch;margin-inline:auto}
.cta-band__btns{display:flex;flex-wrap:wrap;gap:13px;justify-content:center;margin-top:26px}
.cta-band small{display:block;margin-top:20px;color:var(--faint)}

.cta-inline{
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;
  background:var(--surface-2);border:1px solid rgba(255,194,71,.3);
  border-left:4px solid var(--gold);
  border-radius:var(--radius);padding:24px 26px;margin:2.2rem 0;
}
.cta-inline div{flex:1;min-width:240px}
.cta-inline b{display:block;color:#fff;font-size:1.08rem;margin-bottom:5px}
.cta-inline p{margin:0;color:var(--muted);font-size:.93rem}

/* ---------- Related / link hub ---------------------------------------- */

.linklist{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.linklist a{
  display:flex;align-items:center;gap:10px;
  padding:13px 16px;border-radius:10px;
  background:var(--surface-2);border:1px solid var(--line);
  color:var(--text);font-weight:600;font-size:.94rem;
}
.linklist a:hover{border-color:var(--jade);color:var(--jade);text-decoration:none}
.linklist a::before{content:"\2192";color:var(--gold);font-weight:800}

/* ---------- Sponsored / partner links ---------------------------------- */

.img-link{
  display:block;position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  text-decoration:none;
}
.img-link:hover{text-decoration:none}
.img-link img{transition:transform .4s ease}
.img-link:hover img,.img-link:focus-visible img{transform:scale(1.025)}
.img-link::after{
  content:"Visit ArioPlay \2192";
  position:absolute;right:14px;bottom:14px;
  background:linear-gradient(145deg,#ffd166,var(--gold) 45%,var(--gold-deep));
  color:#1b1305;font-weight:800;font-size:.82rem;letter-spacing:.01em;
  padding:9px 16px;border-radius:10px;
  box-shadow:0 8px 22px -10px rgba(0,0,0,.9);
  opacity:.94;transition:opacity .25s ease,transform .25s ease;
  pointer-events:none;
}
.img-link:hover::after,.img-link:focus-visible::after{opacity:1;transform:translateY(-2px)}
.prose .img-link{border-radius:var(--radius)}

.sponsor-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.62rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--faint);border:1px solid var(--line);
  padding:3px 9px;border-radius:999px;vertical-align:middle;
  margin-left:8px;
}
.cta-band small .sponsor-tag,.hero__cta + .sponsor-note{margin-left:0}
.sponsor-note{
  display:block;margin-top:14px;
  font-size:.78rem;color:var(--faint);
}
.sponsor-note a{color:var(--muted)}

/* ---------- AI disclosure --------------------------------------------- */

.ai-note{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface-2);
  border:1px dashed rgba(157,171,196,.4);
  border-radius:var(--radius);padding:18px 20px;
  font-size:.88rem;color:var(--muted);margin:2rem 0;
}
.ai-note b{color:var(--text);display:block;margin-bottom:3px}
.ai-note p:last-child{margin-bottom:0}
.ai-note__icon{font-size:1.1rem;flex-shrink:0;line-height:1.5}

/* ---------- Footer ----------------------------------------------------- */

.footer{
  background:var(--surface);
  border-top:1px solid var(--line);
  padding:56px 0 30px;margin-top:20px;
  font-size:.92rem;
}
.footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:34px;border-bottom:1px solid var(--line-soft);
}
.footer h2{
  font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);
  margin:0 0 16px;font-weight:800;line-height:1.3;
}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin-bottom:9px}
.footer a{color:var(--muted);font-size:.9rem}
.footer a:hover{color:var(--jade)}
.footer__about p{color:var(--faint);font-size:.88rem;max-width:34ch}
.footer__logo{margin-bottom:16px}

.age-badge{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(255,93,122,.1);border:1px solid rgba(255,93,122,.4);
  color:#ffb3c1;border-radius:999px;padding:8px 16px;
  font-weight:800;font-size:.8rem;letter-spacing:.06em;margin-top:6px;
}
.age-badge b{color:var(--rose);font-size:.95rem}

.footer__legal{padding-top:26px;color:var(--faint);font-size:.82rem}
.footer__legal p{margin-bottom:.9em}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  padding-top:20px;margin-top:18px;border-top:1px solid var(--line-soft);
  color:var(--faint);font-size:.82rem;
}
.footer__bottom a{color:var(--muted)}

/* ---------- Utility ---------------------------------------------------- */

.center{text-align:center}
.mb-0{margin-bottom:0}
.mt-0{margin-top:0}
.m-0{margin:0}
.mt-lg{margin-top:44px}
.mt-xl{margin-top:2.5rem}
.muted{color:var(--muted)}
.items-center{align-items:center}
.justify-center{justify-content:center}
.mx-auto{margin-inline:auto}
.visually-hidden{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- Responsive -------------------------------------------------- */

@media (max-width:980px){
  .hero__grid{grid-template-columns:1fr;gap:38px}
  .hero__art{max-width:520px;margin-inline:auto}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr;gap:30px}
}

@media (max-width:820px){
  .nav-label{display:grid;order:2}
  .nav{
    order:3;width:100%;
    display:none;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:8px 0 16px;border-top:1px solid var(--line-soft);
  }
  .nav-toggle:checked ~ .nav{display:flex}
  .nav a{padding:12px 14px;font-size:1rem}
  .masthead__bar{flex-wrap:wrap;padding-block:12px;min-height:0}
  .masthead .btn{margin-left:0;order:1}
  .logo{margin-right:auto}
  .hero{padding:44px 0 40px}
  .section{padding:48px 0}
  .toc ol{columns:1}
  .cta-band{padding:32px 24px}
}

@media (max-width:620px){
  body{font-size:16px}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .hero__stats{gap:20px}
  .card{padding:22px}
  .masthead .btn{padding:10px 16px;font-size:.85rem}
  .prose{padding:30px 0 44px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

@media print{
  .masthead,.footer,.cta-band,.cta-inline,.hero__cta{display:none}
  body{background:#fff;color:#000}
}