/* v4v.ai content pages — design tokens pulled from the live site (provid-light) */
:root{
  --bg:#fff; --bg-soft:hsl(220 20% 98.5%); --bg-band:hsl(220 25% 97.5%);
  --text:hsl(220 15% 12%); --muted:hsl(220 9% 46%);
  --border:hsl(220 13% 91%); --border-strong:hsl(220 13% 84%);
  --primary:hsl(252 56% 57%); --primary-600:hsl(252 56% 50%);
  --primary-50:hsl(252 56% 97%); --primary-100:hsl(252 56% 94%); --primary-200:hsl(252 56% 88%);
  --grad:linear-gradient(135deg,hsl(252 56% 57%),hsl(270 70% 60%));
  --hero-glow:radial-gradient(1200px 500px at 50% -200px,hsl(252 56% 94%/.9),transparent 60%),radial-gradient(900px 400px at 85% 0%,hsl(215 90% 94%/.6),transparent 60%);
  --shadow-sm:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.04);
  --radius:16px; --maxw:1120px; --prose:760px;
  --font:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--primary-600);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.prose-wrap{max-width:var(--prose);margin:0 auto;padding:0 24px}

/* header (mirrors v4v.ai) */
header{position:sticky;top:0;z-index:50;background:hsl(0 0% 100%/.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-weight:700;font-size:1.25rem;color:var(--text);text-decoration:none}
.logo span{color:var(--primary)}
.nav-links{display:flex;gap:1.6rem;align-items:center}
.nav-links a{color:var(--muted);font-size:.95rem;font-weight:500;text-decoration:none}
.nav-links a:hover{color:var(--text)}
.mobile-nav{display:none}
@media(max-width:880px){
  .nav-links{display:none}
  .mobile-nav{display:block;position:relative;border:0;padding:0;margin:0;background:transparent;box-shadow:none}
  .mobile-nav summary{display:grid;width:38px;height:38px;place-content:center;gap:4px;padding:0;border:1px solid var(--border);border-radius:999px;background:#fff}
  .mobile-nav summary::after{display:none}
  .mobile-nav summary span{display:block;width:15px;height:1.5px;border-radius:2px;background:var(--text)}
  .mobile-nav-panel{position:absolute;left:50%;top:46px;display:grid;min-width:190px;padding:10px;border:1px solid var(--border);border-radius:14px;background:#fff;box-shadow:0 18px 45px rgba(16,24,40,.16);transform:translateX(-50%)}
  .mobile-nav-panel a{padding:9px 11px;border-radius:9px;color:var(--text);font-size:.92rem;font-weight:500;text-decoration:none}
  .mobile-nav-panel a:hover{background:var(--primary-50);color:var(--primary-600)}
}
@media(max-width:520px){
  .nav{gap:10px}
  .nav>.btn{padding:.52rem .85rem;font-size:.84rem}
}
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;font-size:1rem;padding:.8rem 1.6rem;border-radius:999px;border:1px solid transparent;cursor:pointer;text-decoration:none !important;transition:transform .15s,box-shadow .15s}
.btn-primary{background:var(--grad);color:#fff !important;box-shadow:0 8px 22px hsl(252 56% 57%/.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px hsl(252 56% 57%/.36)}
.btn-sm{padding:.55rem 1.1rem;font-size:.92rem}

/* article head */
.art-hero{position:relative;background:var(--bg);padding:56px 0 8px;overflow:hidden}
.art-hero::before{content:"";position:absolute;inset:0;background:var(--hero-glow);pointer-events:none}
.art-hero>*{position:relative}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted)}
h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700;line-height:1.15;letter-spacing:-.02em;margin:.2em 0 .5em}
h2{font-size:1.45rem;font-weight:700;letter-spacing:-.01em;margin:2.2em 0 .6em}
h3{font-size:1.1rem;font-weight:600;margin:1.6em 0 .4em}
h2[id],h3[id],.cta[id]{scroll-margin-top:92px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 6px}
.tag{font-size:.78rem;font-weight:600;color:var(--primary-600);background:var(--primary-50);border:1px solid var(--primary-100);border-radius:999px;padding:.25rem .7rem}
.author-row{display:flex;align-items:center;gap:12px;margin:20px 0 26px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.avatar{width:44px;height:44px;flex:0 0 auto;border-radius:999px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}
.author-avatar-link{display:block;width:44px;height:44px;flex:0 0 auto;border-radius:999px}
.avatar-image{display:block;object-fit:cover;background:#11151d;border:1px solid var(--border-strong);box-shadow:0 3px 12px hsl(231 30% 12%/.12);transition:transform .2s ease,box-shadow .2s ease}
.author-avatar-link:hover .avatar-image{transform:translateY(-1px);box-shadow:0 5px 16px hsl(231 30% 12%/.18)}
.author-profile-avatar{width:88px;height:88px}
.author-meta{font-size:.9rem;line-height:1.4}
.author-meta b{color:var(--text)}
.author-meta .sub{color:var(--muted)}

/* verdict box */
.verdict{background:var(--primary-50);border:1px solid var(--primary-200);border-left:4px solid var(--primary);border-radius:var(--radius);padding:22px 26px;margin:26px 0}
.verdict .k{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--primary-600);margin-bottom:8px}
.verdict p{margin:0}

/* prose */
p{margin:0 0 1.05em}
.muted{color:var(--muted)}
table{width:100%;border-collapse:collapse;margin:18px 0 26px;font-size:.95rem;box-shadow:var(--shadow-sm);border-radius:12px;overflow:hidden}
th{background:var(--bg-band);text-align:left;font-weight:600;padding:.7rem .9rem;border-bottom:1px solid var(--border-strong)}
td{padding:.65rem .9rem;border-bottom:1px solid var(--border)}
tr:last-child td{border-bottom:0}
td:first-child{font-weight:500}
.tick{color:hsl(150 60% 35%);font-weight:700}
.cross{color:hsl(0 60% 50%);font-weight:700}
ul{padding-left:1.2rem;margin:0 0 1.05em}
li{margin:.3em 0}

/* honest limitations */
.limits{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;margin:22px 0}
.limits h2,.limits h3{margin-top:0}

/* FAQ */
details{border:1px solid var(--border);border-radius:14px;padding:2px 18px;margin-bottom:10px;background:#fff;box-shadow:var(--shadow-sm)}
summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right;color:var(--primary);font-weight:700}
details[open] summary::after{content:"–"}
details p{padding-bottom:14px;margin:0;color:var(--muted)}

/* CTA band */
.cta{background:var(--primary-50);border:1px solid var(--primary-200);border-radius:20px;text-align:center;padding:38px 26px;margin:44px 0}
.cta h2{margin:0 0 .35em}
.cta p{color:var(--muted);margin-bottom:1.2em}
.cta .fine{font-size:.85rem;color:var(--muted);margin:.9em 0 0}

footer{border-top:1px solid var(--border);margin-top:56px;padding:40px 0 56px;color:var(--muted);background:var(--bg-soft);font-size:.92rem}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
.foot-links{display:flex;gap:18px;flex-wrap:wrap}
.foot-links a{color:var(--muted)}
.updated{font-size:.85rem;color:var(--muted)}

.hero-img{position:relative;left:50%;display:block;width:min(960px,calc(100vw - 48px));max-width:none;height:auto;aspect-ratio:40/21;object-fit:cover;border-radius:18px;margin:30px 0 8px;border:1px solid var(--border);box-shadow:0 24px 60px -38px rgba(16,24,40,.45);transform:translateX(-50%)}

/* related guides */
.related-pages{margin:64px 0 12px;padding-top:34px;border-top:1px solid var(--border-strong)}
.related-pages-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}
.related-pages-heading>span{color:var(--primary-600);font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.related-pages-heading h2{margin:0;font-size:1.6rem;line-height:1.2;letter-spacing:0}
.related-pages-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.related-page{display:flex;min-width:0;min-height:230px;flex-direction:column;padding:21px;border:1px solid var(--border);border-radius:14px;background:#fff;color:var(--text);box-shadow:var(--shadow-sm);text-decoration:none;transition:border-color .2s,box-shadow .2s,transform .2s}
.related-page:hover{border-color:var(--primary-100);box-shadow:0 18px 40px -30px rgba(35,24,90,.5);transform:translateY(-2px);text-decoration:none}
.related-page-section{color:var(--primary-600);font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.related-page strong{margin-top:10px;font-size:1rem;line-height:1.4;letter-spacing:0}
.related-page-description{display:-webkit-box;overflow:hidden;margin-top:10px;color:var(--muted);font-size:.82rem;line-height:1.55;-webkit-box-orient:vertical;-webkit-line-clamp:3}
.related-page-link{margin-top:auto;padding-top:17px;color:var(--primary-600);font-size:.8rem;font-weight:600}
.related-page-link b{margin-left:3px}
@media(max-width:780px){.related-pages-heading{display:block}.related-pages-heading h2{margin-top:7px}.related-pages-grid{grid-template-columns:1fr}.related-page{min-height:0}.related-page-description{-webkit-line-clamp:2}}
@media(prefers-reduced-motion:reduce){.related-page{transition:none}}

/* video gallery */
.vidgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:22px 0 30px}
@media(max-width:880px){.vidgrid{grid-template-columns:repeat(2,1fr)}}
.vidgrid figure{margin:0}
.vidgrid video{width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:14px;border:1px solid var(--border);background:#101319;box-shadow:var(--shadow-sm)}
.vidgrid figcaption{font-size:.82rem;color:var(--muted);margin-top:.4rem;text-align:center}

/* link footer */
footer .wrap{max-width:1280px}
.footgrid{display:grid;grid-template-columns:1.35fr repeat(5,minmax(0,1fr));gap:32px}
@media(max-width:1120px){.footgrid{grid-template-columns:repeat(3,minmax(0,1fr))}.fbrand{grid-column:1/-1}}
@media(max-width:700px){.footgrid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footgrid{grid-template-columns:1fr}.fbrand{grid-column:auto}}
.fbrand .ftag{color:var(--muted);font-size:.9rem;margin-top:10px;line-height:1.5}
.fh{font-weight:600;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.fcol a{display:block;color:var(--text);text-decoration:none;font-size:.93rem;padding:4px 0}
.fcol a:hover{color:var(--primary-600)}
.fbottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--border);margin-top:36px;padding-top:18px;color:var(--muted);font-size:.88rem}
.fbottom nav{display:flex;gap:18px}
.fbottom a{color:var(--muted)}
.fbottom-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.footer-socials{display:flex;align-items:center;gap:8px}
.footer-social{display:inline-flex;width:36px;height:36px;align-items:center;justify-content:center;padding:0;border:1px solid var(--border);border-radius:50%;background:#fff;color:var(--muted);transition:border-color .2s,color .2s,transform .2s}
.footer-social:hover{border-color:var(--primary-100);color:var(--primary-600);transform:translateY(-1px);text-decoration:none}
.footer-social svg{width:16px;height:16px;fill:currentColor}

/* section indexes */
.index-page{background:var(--bg)}
.index-hero{position:relative;overflow:hidden;padding:64px 0 72px;background:var(--hero-glow)}
.index-hero::after{content:"";position:absolute;right:-120px;bottom:-210px;width:430px;height:430px;border:1px solid var(--primary-100);border-radius:50%;box-shadow:0 0 0 52px hsl(252 56% 97%/.55),0 0 0 104px hsl(252 56% 97%/.3);pointer-events:none}
.index-hero .wrap{position:relative;z-index:1}
.index-hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(360px,.98fr);gap:72px;align-items:end}
.index-hero-copy{padding:46px 0 28px;animation:index-rise .55s ease-out both}
.index-kicker{margin:0 0 16px;color:var(--primary-600);font-size:.76rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase}
.index-hero h1{max-width:650px;margin:0;font-size:clamp(2.6rem,5.5vw,4.65rem);font-weight:600;line-height:.98;letter-spacing:-.055em}
.index-intro{max-width:600px;margin:28px 0 0;color:var(--muted);font-size:1.08rem;line-height:1.72}
.index-count{display:inline-flex;margin:30px 0 0;padding:7px 12px;border:1px solid var(--primary-100);border-radius:999px;background:hsl(0 0% 100%/.68);color:var(--primary-600);font-size:.78rem;font-weight:600}
.index-feature{display:block;overflow:hidden;border:1px solid var(--border);border-radius:24px;background:#fff;color:var(--text);box-shadow:0 24px 60px -38px rgba(35,24,90,.38);text-decoration:none;animation:index-rise .65s .08s ease-out both}
.index-feature:hover{text-decoration:none}
.index-feature-media{display:block;overflow:hidden;aspect-ratio:16/9;background:var(--primary-50)}
.index-feature-image{display:block;width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.index-image-fallback{display:grid;place-items:center;background:#11151d;color:#fff;font-size:.96rem;font-weight:700}
.index-image-fallback span{color:#9a7cff}
.index-feature:hover .index-feature-image{transform:scale(1.025)}
.index-feature-copy{display:grid;gap:9px;padding:24px 26px 27px}
.index-feature-label{color:var(--primary-600);font-size:.72rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase}
.index-feature-copy strong{font-size:1.16rem;line-height:1.35;letter-spacing:-.01em}
.index-feature-copy>span:last-child{color:var(--muted);font-size:.86rem;font-weight:600}
.index-feature-copy b{display:inline-block;margin-left:5px;color:var(--primary);transition:transform .2s ease}
.index-feature:hover .index-feature-copy b{transform:translateX(4px)}
.index-library{padding:74px 0 94px}
.index-section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;padding-bottom:20px;border-bottom:1px solid var(--border-strong)}
.index-section-head h2{margin:0;font-size:clamp(1.7rem,3vw,2.35rem);font-weight:600;letter-spacing:-.035em}
.index-section-head>span{padding-bottom:3px;color:var(--muted);font-size:.86rem}
.index-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:54px}
.index-item{display:grid;grid-template-columns:148px minmax(0,1fr);gap:22px;padding:30px 0;border-bottom:1px solid var(--border);animation:index-rise .5s calc(min(var(--item-order), 8) * .035s) ease-out both}
.index-item-media{display:block;overflow:hidden;align-self:start;aspect-ratio:4/3;border-radius:13px;background:var(--primary-50)}
.index-item-image{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.author-card-media{aspect-ratio:1;background:#11151d}
.author-card-image{object-position:center 38%}
.index-item:hover .index-item-image{transform:scale(1.035)}
.index-item-copy{min-width:0}
.index-item-meta{display:flex;gap:11px;margin-bottom:9px;color:var(--muted);font-size:.69rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase}
.index-item-meta span+span::before{content:"·";margin-right:11px}
.index-item h2{margin:0;font-size:1.05rem;line-height:1.38;letter-spacing:-.012em}
.index-item h2 a{color:var(--text);text-decoration:none}
.index-item h2 a:hover{color:var(--primary-600)}
.index-item p{display:-webkit-box;overflow:hidden;margin:10px 0 12px;color:var(--muted);font-size:.86rem;line-height:1.55;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.index-read-link{color:var(--primary-600);font-size:.82rem;font-weight:600;text-decoration:none}
.index-read-link span{display:inline-block;margin-left:3px;transition:transform .2s ease}
.index-read-link:hover span{transform:translateX(4px)}
.index-final-cta{padding:0 0 80px}
.index-final-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding-top:44px;border-top:1px solid var(--border-strong)}
.index-final-cta h2{max-width:600px;margin:0;font-size:clamp(1.65rem,3.2vw,2.5rem);font-weight:600;line-height:1.18;letter-spacing:-.035em}
.index-final-cta .index-kicker{margin-bottom:10px}
.index-page footer{margin-top:0}
@keyframes index-rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:980px){
  .index-hero-grid{grid-template-columns:1fr;gap:40px}
  .index-hero-copy{padding-bottom:0}
  .index-feature{max-width:660px}
  .index-grid{grid-template-columns:1fr}
}
@media(max-width:620px){
  .index-hero{padding:38px 0 50px}
  .index-hero-copy{padding-top:24px}
  .index-hero h1{font-size:clamp(2.35rem,12vw,3.35rem)}
  .index-intro{margin-top:20px;font-size:1rem}
  .index-feature-copy{padding:20px}
  .index-library{padding:54px 0 68px}
  .index-item{grid-template-columns:112px minmax(0,1fr);gap:16px;padding:24px 0}
  .author-profile-avatar{width:76px;height:76px}
  .index-item p{display:none}
  .index-final-cta-inner{align-items:flex-start;flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  .index-hero-copy,.index-feature,.index-item{animation:none}
  .avatar-image{transition:none}
  .index-feature-image,.index-item-image,.index-feature-copy b,.index-read-link span{transition:none}
}