/*
  Design concept: Apple product-page — true-black canvas, oversized centered
  headlines with tight tracking, translucent blurred nav, pill CTAs, SF Pro
  via the native -apple-system stack (Inter as the cross-platform stand-in,
  since SF Pro itself can't be embedded on the web).
*/
:root{
  --bg:#000000;
  --bg-elevated:#1D1D1F;
  --bg-elevated-2:#161617;
  --text:#F5F5F7;
  --text-secondary:#86868B;
  --accent:#2997FF;
  --border:rgba(255,255,255,0.14);
  --border-soft:rgba(255,255,255,0.08);
  --radius-card:22px;
  --radius-pill:980px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:0.001ms!important;animation-duration:0.001ms!important}
}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,'Inter','Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  font-size:17px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-weight:700;
  letter-spacing:-0.03em;
  text-wrap:balance;
  color:var(--text);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
::selection{background:var(--accent);color:#fff}

.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:100;font-size:14px}
.skip-link:focus{left:0}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(0,0,0,0.72);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--border-soft);
}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:64px}
.brand__logo{height:38px;width:auto}
.nav{display:flex;gap:32px;align-items:center}
.nav__link{font-size:12.5px;font-weight:400;color:var(--text-secondary);letter-spacing:.01em;transition:.2s}
.nav__link:hover{color:var(--text)}
.nav__link.is-active{color:var(--text)}
.nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:20px;height:1.5px;background:var(--text);border-radius:2px}
.mobile-nav{display:none;flex-direction:column;padding:6px 24px 16px;gap:2px;border-top:1px solid var(--border-soft);background:#000}
.mobile-nav .nav__link{padding:12px 4px;border-bottom:1px solid var(--border-soft);font-size:15px}
.mobile-nav.is-open{display:flex}

@media (max-width:900px){
  .nav{display:none}
  .nav-toggle{display:flex}
}

/* Eyebrow label */
.stamp{
  display:inline-block;
  font-size:15px;font-weight:600;
  color:var(--accent);
  letter-spacing:0;
  margin-bottom:6px;
}
.stamp--ink{color:var(--text-secondary)}
.stamp--blue{color:var(--accent)}

/* Hero */
.hero{padding:20px 0 0;text-align:center;background:var(--bg)}
.hero__inner{display:flex;flex-direction:column;align-items:center;gap:0}
.hero__text{max-width:680px;margin:0 auto}
.hero__text h1{font-size:clamp(34px,5.2vw,56px);line-height:1.07;margin:0 0 12px}
.hero__text h1 a:hover{color:var(--accent)}
.hero__text p{font-size:19px;color:var(--text-secondary);margin:0 0 28px;max-width:52ch;margin-left:auto;margin-right:auto}
.hero__media{margin:0 auto 40px;border-radius:28px;overflow:hidden;aspect-ratio:16/9;position:relative;width:100%}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__media::after{display:none}

@media (max-width:800px){
  .hero__media{border-radius:18px;margin-bottom:28px}
}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:6px;padding:12px 22px;
  border-radius:var(--radius-pill);
  font-weight:400;font-size:15px;
  transition:.2s;border:1px solid transparent;
}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:#0d7bef}
.btn--outline-light{border-color:rgba(255,255,255,0.4);color:#fff;background:transparent}
.btn--outline-light:hover{background:rgba(255,255,255,0.08)}

/* Sections */
.section{padding:88px 0}
.section__head{margin-bottom:36px;text-align:center}
.section__head h2{font-size:clamp(28px,3.6vw,40px);margin:0 0 10px}
.section__head p{color:var(--text-secondary);margin:0;font-size:17px}

/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.card{
  background:var(--bg-elevated);border:1px solid var(--border-soft);border-radius:var(--radius-card);
  overflow:hidden;transition:.3s ease;display:flex;flex-direction:column;position:relative;
}
.card:hover{transform:translateY(-4px);border-color:var(--border)}
.card__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-elevated-2)}
.card__media img{width:100%;height:100%;object-fit:cover}
.card__media--placeholder{width:100%;height:100%;background:linear-gradient(135deg,var(--bg-elevated-2),var(--bg-elevated))}
.card__badge{
  position:absolute;top:14px;left:14px;
  font-size:12px;font-weight:600;color:#fff;
  background:rgba(0,0,0,0.55);backdrop-filter:blur(6px);
  padding:5px 12px;border-radius:var(--radius-pill);
}
.card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.card__title{font-size:19px;line-height:1.3;margin:0;font-weight:600;letter-spacing:-0.01em}
.card__title a:hover{color:var(--accent)}
.card__excerpt{color:var(--text-secondary);font-size:14.5px;margin:0;flex:1;line-height:1.55}
.card__meta{font-size:12.5px;color:var(--text-secondary);padding-top:10px}

/* Category tiles */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.cat-tile{background:var(--bg-elevated);border:1px solid var(--border-soft);border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:6px;transition:.2s}
.cat-tile:hover{border-color:var(--accent);transform:translateY(-2px)}
.cat-tile__name{font-weight:700;font-size:20px;letter-spacing:-0.01em}
.cat-tile__count{font-size:13px;color:var(--text-secondary)}

/* Archive head */
.archive-head{padding-top:72px;padding-bottom:8px;text-align:center}
.archive-head h1{font-size:clamp(32px,4.4vw,48px);margin:8px 0}
.archive-head p{color:var(--text-secondary)}

/* Post */
.post{max-width:700px;padding-top:64px}
.post__header{margin-bottom:28px;text-align:center}
.post__cats{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap;justify-content:center}
.tag-pill{
  font-size:12.5px;font-weight:600;color:var(--accent);
  padding:5px 13px;border-radius:var(--radius-pill);border:1px solid rgba(41,151,255,0.4);
  background:rgba(41,151,255,0.08);
}
.post h1{font-size:clamp(30px,4.6vw,46px);line-height:1.08;margin:0 0 16px}
.post__meta{color:var(--text-secondary);font-size:14px;display:flex;gap:10px;align-items:center;justify-content:center}
.post__hero{margin:0 0 40px;border-radius:24px;overflow:hidden}
.post__hero img{width:100%}
.post__body{font-size:18px;color:var(--text)}
.post__body p{margin:0 0 24px;line-height:1.7;color:#D2D2D7}
.post__body h2{font-size:28px;margin:48px 0 18px;font-weight:700;letter-spacing:-0.02em}
.post__body h3{font-size:22px;margin:36px 0 14px;font-weight:600}
.post__body img{max-width:100%;max-height:75vh;width:auto;height:auto;border-radius:18px;margin:8px auto 24px;display:block}
.post__body figure{margin:0 0 28px}
.post__body figcaption{color:var(--text-secondary);font-size:13px;margin-top:10px;text-align:center}
.post__body blockquote{border-left:2px solid var(--accent);margin:28px 0;padding:2px 0 2px 22px;color:var(--text-secondary);font-size:19px}
.post__body a{color:var(--accent);text-decoration:none}
.post__body a:hover{text-decoration:underline}
.post__body ul,.post__body ol{padding-left:22px;margin:0 0 24px;color:#D2D2D7}
.post__body li{margin-bottom:8px}
.post--page .post__body{font-size:17px}
.post--page .post__header{text-align:left}
.post--page .post__body p{text-align:left}

/* Contact fallback */
.contact-fallback{background:var(--bg-elevated);border:1px solid var(--border-soft);border-radius:18px;padding:28px;text-align:left}
.contact-fallback p{margin:0 0 14px;color:#D2D2D7}
.contact-fallback .fine-print{font-size:12px;color:var(--text-secondary);margin-top:14px}

/* Ad slots */
.ad-slot{margin:40px auto;padding:16px;border:1px dashed var(--border);border-radius:14px;background:var(--bg-elevated);text-align:center;min-height:100px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px}
.ad-slot__tag{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary)}
.ad-slot ins{width:100%}

/* Footer */
.site-footer{background:#000;color:var(--text-secondary);margin-top:40px;border-top:1px solid var(--border-soft)}
.footer__inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding:56px 0 32px}
.footer__logo{height:30px;width:auto;margin-bottom:16px;opacity:0.85}
.footer__brand p{color:var(--text-secondary);font-size:13px;max-width:34ch;line-height:1.6}
.footer__col h4{font-size:12px;font-weight:600;color:var(--text);margin:0 0 16px}
.footer__col a{display:block;color:var(--text-secondary);font-size:13px;margin-bottom:12px}
.footer__col a:hover{color:var(--text);text-decoration:underline}
.footer__newsletter p{color:var(--text-secondary);font-size:13px;margin:0 0 16px;line-height:1.6}
.footer__bottom{border-top:1px solid var(--border-soft);padding:18px 0;font-size:12px;color:var(--text-secondary)}

@media (max-width:900px){
  .footer__inner{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .footer__inner{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
}