/* ===== ARTICLE MASTHEAD ===== */
/* padding-top replaces the prototype's <article class="article">{padding-top:64px} —
   this template has no page-level wrapper for the fixed nav offset, so it lives on the
   first section instead (same convention as blog.css's .masthead, see P1/porting notes). */
.art-masthead{background:#fff;padding-top:64px}
html[data-theme="dark"] .art-masthead{background:var(--bg)}
.art-head{max-width:var(--read-w);margin:0 auto;padding:clamp(40px,6vw,72px) clamp(22px,5vw,24px) clamp(24px,3vw,34px);text-align:center}
.crumb{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink-muted);margin-bottom:26px;transition:color .15s}
.crumb:hover{color:var(--accent-hover)}
.crumb svg{width:15px;height:15px}
.art-cat{font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--accent-hover);margin-bottom:18px}
.art-title{font-family:var(--serif);font-weight:600;font-size:clamp(32px,5.4vw,56px);line-height:1.06;letter-spacing:-.035em;color:var(--ink);text-wrap:balance}
.art-dek{margin:22px auto 0;max-width:560px;font-size:clamp(17px,2.1vw,21px);line-height:1.5;color:var(--ink-soft);text-wrap:pretty}
.art-byline{display:flex;align-items:center;justify-content:center;gap:13px;margin-top:34px;font-size:14px;color:var(--ink-muted)}

/* ===== COVER ===== */
.art-cover{max-width:var(--max-w);margin:clamp(20px,3vw,36px) auto 0;padding:0 clamp(20px,4vw,48px)}
.art-cover-inner{border-radius:22px;overflow:hidden;aspect-ratio:21/9;background:var(--bg-warm);box-shadow:0 14px 50px rgba(var(--shadow),.08)}
.art-cover-inner img{display:block;width:100%;height:100%;object-fit:cover}
@media(max-width:600px){.art-cover-inner{aspect-ratio:16/10}}

/* ===== BODY ===== */
.art-body{max-width:var(--read-w);margin:0 auto;padding:clamp(40px,5vw,60px) clamp(22px,5vw,24px) clamp(48px,6vw,72px)}
.art-body>*{margin-bottom:1.5em}
.art-body p{font-family:var(--read);font-size:clamp(18px,2.4vw,20px);line-height:1.72;color:var(--ink);letter-spacing:-.003em;text-wrap:pretty}
.art-body .lead{font-size:clamp(20px,2.7vw,23px);line-height:1.6;color:var(--ink-soft)}
.art-body h2{font-family:var(--serif);font-weight:600;font-size:clamp(24px,3.4vw,32px);line-height:1.15;letter-spacing:-.025em;color:var(--ink);margin-top:1.9em;margin-bottom:.6em}
.art-body h3{font-family:var(--serif);font-weight:600;font-size:clamp(19px,2.5vw,23px);line-height:1.25;letter-spacing:-.02em;color:var(--ink);margin-top:1.5em;margin-bottom:.5em}
.art-body a{color:var(--accent-hover);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:color .15s}
.art-body a:hover{color:var(--accent)}
.art-body ul,.art-body ol{padding-left:1.3em;font-family:var(--read)}
.art-body li{font-size:clamp(18px,2.4vw,20px);line-height:1.62;color:var(--ink);margin-bottom:.55em;padding-left:.3em}
.art-body li::marker{color:var(--accent)}
.art-body strong{font-weight:600;color:var(--ink)}
.art-body em{font-style:italic}
.art-body hr{border:none;height:1px;background:var(--line);margin:2.4em 0}
.art-body img{border-radius:14px}

.pullquote{font-family:var(--serif);font-weight:600;font-size:clamp(23px,3.6vw,32px);line-height:1.28;letter-spacing:-.025em;color:var(--ink);text-align:center;padding:clamp(20px,3vw,28px) clamp(8px,3vw,40px);position:relative;text-wrap:balance}
.pullquote::before,.pullquote::after{content:'';position:absolute;left:50%;transform:translateX(-50%);width:54px;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent)}
.pullquote::before{top:0}.pullquote::after{bottom:0}
.pullquote em{font-style:italic;color:var(--accent-hover)}

.callout{background:var(--bg-warm);border:1px solid var(--line);border-radius:18px;padding:clamp(22px,3vw,30px)}
.callout-label{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--accent-hover);margin-bottom:12px}
.callout p{font-family:var(--sans)!important;font-size:16px!important;line-height:1.6!important;color:var(--ink-soft)!important;margin:0!important}

/* ===== SHARE / FOOTER ===== */
.art-foot{max-width:var(--read-w);margin:0 auto;padding:0 clamp(22px,5vw,24px) clamp(40px,5vw,56px)}
.art-foot-rule{height:1px;background:var(--line);margin-bottom:28px}
.share-row{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{font-size:12.5px;font-weight:600;padding:6px 13px;border-radius:100px;border:1px solid var(--line);background:var(--surface);color:var(--ink-soft)}
.share-btns{display:flex;gap:8px}
.share-btn{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:var(--surface);border-radius:10px;color:var(--ink-soft);cursor:pointer;transition:color .15s,border-color .15s,transform .15s}
.share-btn:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px)}
.share-btn svg{width:17px;height:17px}

/* ===== RELATED ===== */
.related{background:#fff;border-top:1px solid var(--line);padding:clamp(56px,7vw,88px) clamp(20px,4vw,48px)}
html[data-theme="dark"] .related{background:var(--bg)}
.related-inner{max-width:var(--max-w);margin:0 auto}
.related-head{font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-ghost);margin-bottom:28px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{display:flex;flex-direction:column;border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 4px 18px rgba(var(--shadow),.06);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
html[data-theme="dark"] .rel-card{background:var(--surface)}
.rel-card:hover{transform:translateY(-5px);box-shadow:0 22px 50px rgba(var(--shadow),.1)}
.rel-cover{aspect-ratio:16/10;overflow:hidden;background:var(--bg-warm)}
.rel-cover img{display:block;width:100%;height:100%;object-fit:cover}
.rel-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-cat{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-hover)}
.rel-title{font-family:var(--serif);font-weight:600;font-size:19px;line-height:1.2;letter-spacing:-.01em;color:var(--ink)}
@media(max-width:860px){.related-grid{grid-template-columns:1fr}.related-grid a:nth-child(3){display:none}}
@media(max-width:860px) and (min-width:561px){.related-grid{grid-template-columns:1fr 1fr}.related-grid a:nth-child(3){display:flex}}

/* ===== APP AD (duplicated from blog.css: app-ad is page-specific per P8, not shared) ===== */
.app-ad{background:var(--bg-deep);color:#fff;padding:clamp(56px,8vw,104px) clamp(20px,4vw,48px);position:relative;overflow:hidden}
.app-ad::before{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:840px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(var(--accent-rgb),.13),transparent 66%);pointer-events:none}
.app-ad-inner{position:relative;max-width:var(--max-w);margin:0 auto;display:grid;grid-template-columns:1fr .8fr;gap:clamp(32px,6vw,72px);align-items:center}
.app-ad-eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:20px}
.app-ad-eyebrow .logo-mark{width:18px;height:18px}
.app-ad h2{font-family:var(--serif);font-weight:600;font-size:clamp(30px,4.6vw,52px);line-height:1.03;letter-spacing:-.04em;color:#fff;margin-bottom:18px;text-wrap:balance}
.app-ad h2 em{font-style:italic;color:var(--accent)}
.app-ad-copy>p{font-size:clamp(15px,1.9vw,18px);line-height:1.62;color:rgba(255,255,255,.6);max-width:440px;margin-bottom:30px}
.app-ad .btn-gold{background:#F4EBDB;color:#2E251C;border-color:transparent}
.app-ad .btn-gold:hover{background:#fff;box-shadow:0 16px 40px rgba(0,0,0,.35)}
.app-ad-platforms{display:flex;align-items:center;gap:14px;margin-top:26px;font-size:13.5px;font-weight:500;color:rgba(255,255,255,.5)}
.app-ad-platforms .pdot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.3)}
.app-ad-shot{justify-self:center;width:100%;max-width:300px;aspect-ratio:9/18;border-radius:30px;overflow:hidden;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);box-shadow:0 36px 80px rgba(0,0,0,.45)}
.app-ad-shot img{display:block;width:100%;height:100%;object-fit:cover}
@media(max-width:820px){.app-ad-inner{grid-template-columns:1fr;text-align:center;gap:40px}.app-ad-copy>p{margin-left:auto;margin-right:auto}.app-ad-platforms{justify-content:center}.app-ad-shot{order:-1;max-width:230px}}

/* ===== READING PROGRESS ===== */
.progress{position:fixed;top:64px;left:0;height:2px;width:0;background:var(--accent);z-index:101;transition:width .08s linear}