/* Classfill landing page: light design system v2 (matches /workspace/insight_demo/css/theme.css) */
:root{
  --font:"Inter","SF Pro Text","Helvetica Neue",Helvetica,Arial,sans-serif;
  --bg:#F7F7F8;--stage:#FFFFFF;--control:#F2F2F4;--hairline:#E5E5E5;--hairline-strong:#D2D2D7;
  --text:#1D1D1F;--text-2:#6E6E73;--text-3:#8E8E93;
  --accent:#1F3A8A;--accent-hover:#182E6E;--accent-soft:#EEF2FB;
  --good:#3F8F5F;--warn:#B7791F;--warn-bg:#FDF6E7;
  --r-card:14px;--r-md:12px;--r-pill:9999px;--maxw:1120px;
  --shadow:0 1px 2px rgba(17,17,17,.04),0 12px 32px -12px rgba(17,17,17,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--stage);color:var(--text);font:400 17px/1.6 var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,video{max-width:100%;display:block}
a{color:var(--accent)}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.12}
h1{font-size:clamp(36px,5.6vw,64px);letter-spacing:-.035em}
h2{font-size:clamp(28px,3.4vw,40px);letter-spacing:-.03em}
h3{font-size:20px;line-height:1.3}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.narrow{max-width:760px}
.skip{position:absolute;left:-999px;top:8px;background:var(--text);color:#fff;padding:8px 12px;border-radius:8px;z-index:20}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

/* header */
.top{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--hairline)}
.top-in{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:600;font-size:19px;letter-spacing:-.01em}
.brand svg{width:24px;height:24px}
.nav{display:flex;gap:24px;margin-left:auto}
.nav a{color:var(--text-2);text-decoration:none;font-size:15px;font-weight:500}
.nav a:hover{color:var(--text)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:var(--r-pill);font:600 16px/1 var(--font);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s,color .15s;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-ghost{background:var(--stage);color:var(--text);border-color:var(--hairline-strong)}
.btn-ghost:hover{border-color:var(--text-3)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-lg{min-height:54px;padding:0 28px;font-size:17px}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.ctas.center{justify-content:center}

/* hero */
.hero{padding:72px 0 64px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);border-bottom:1px solid var(--hairline)}
.eyebrow,.kicker{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2);margin-bottom:16px}
.kicker{color:var(--accent)}
.ink{color:var(--accent)}
.sub{max-width:720px;margin-top:20px;font-size:clamp(17px,1.6vw,20px);color:var(--text-2)}
.video-shell{margin-top:40px}
.video{position:relative;border-radius:var(--r-card);overflow:hidden;background:#fff;border:1px solid var(--hairline);box-shadow:var(--shadow);aspect-ratio:16/9}
.video video{width:100%;height:100%;object-fit:cover;background:#fff}
.play{position:absolute;inset:0;margin:auto;width:max-content;height:max-content;display:inline-flex;align-items:center;gap:12px;padding:14px 26px 14px 16px;border:0;border-radius:var(--r-pill);background:var(--accent);color:#fff;font:600 17px/1 var(--font);cursor:pointer;box-shadow:0 10px 30px -8px rgba(31,58,138,.55);transition:transform .15s,background .15s}
.play:hover{background:var(--accent-hover);transform:scale(1.03)}
.play svg{width:34px;height:34px;padding:7px;border-radius:50%;background:#fff;color:var(--accent)}
.video.playing .play{display:none}
.vbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;font-size:14px;color:var(--text-2)}
.cc{font:600 13px/1 var(--font);color:var(--text);background:var(--stage);border:1px solid var(--hairline-strong);border-radius:var(--r-pill);padding:9px 14px;cursor:pointer}
.cc[aria-pressed="true"]{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--warn);background:var(--warn-bg);border:1px solid #F1DDB0;border-radius:6px;padding:2px 7px;margin-right:4px;vertical-align:1px}

/* sections */
.sec{padding:96px 0}
.sec-alt{background:var(--bg);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.sec h2{max-width:760px}
.steps{list-style:none;margin:48px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.steps li{background:var(--stage);border:1px solid var(--hairline);border-radius:var(--r-card);padding:28px}
.steps .n{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:15px;margin-bottom:18px}
.steps p{margin-top:8px;color:var(--text-2);font-size:16px}

.feature{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;margin-top:72px}
.feature.rev{grid-template-columns:7fr 5fr}
.feature.rev .ftext{order:2}
.num{display:block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);margin-bottom:12px}
.ftext h3{font-size:clamp(22px,2.2vw,28px);letter-spacing:-.02em;line-height:1.2}
.ftext p{margin-top:14px;color:var(--text-2)}
.ticks{list-style:none;padding:0;margin:20px 0 0}
.ticks li{position:relative;padding-left:28px;margin-top:8px;font-size:16px}
.ticks li::before{content:"";position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:50%;background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.3 2.3 4.7-5' fill='none' stroke='%231F3A8A' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}
.shot{margin:0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--hairline);background:#fff;box-shadow:var(--shadow)}
.shot img{width:100%;height:auto}
.shot-doc{background:#EEF0F4}
.note{margin-top:56px;font-size:14px;color:var(--text-2)}

.about{display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:start;max-width:900px}
.about p:not(.kicker){margin-top:16px;color:var(--text-2);font-size:18px}
.avatar{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:30px;letter-spacing:.02em;border:1px solid #D9E1F5}

.pilot{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.pilot-copy p:not(.kicker){margin-top:18px;color:var(--text-2);font-size:18px;max-width:460px}
.offer{background:var(--stage);border:1px solid var(--hairline);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}
.offer::before{content:"";display:block;height:6px;background:var(--accent)}
.offer-main{padding:36px}
.pill-tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:var(--accent-soft);color:var(--accent);border-radius:var(--r-pill);padding:5px 12px}
.price{margin-top:18px;font-size:clamp(34px,4vw,46px);letter-spacing:-.03em;line-height:1.1}
.price strong{font-weight:700}
.then{margin-top:8px;font-size:18px;color:var(--text-2)}
.then strong{color:var(--text)}
.offer .btn{margin-top:28px}
.fine{margin-top:14px;font-size:14px;color:var(--text-3)}

details{border-bottom:1px solid var(--hairline);padding:4px 0}
details:first-of-type{margin-top:32px;border-top:1px solid var(--hairline)}
summary{cursor:pointer;list-style:none;padding:18px 36px 18px 0;font-weight:600;font-size:18px;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"";position:absolute;right:6px;top:50%;width:10px;height:10px;border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
details p{padding:0 0 20px;color:var(--text-2)}

.final{padding:96px 0;text-align:center;background:var(--bg);border-top:1px solid var(--hairline)}
.final h2{margin:0 auto}
.final p{margin-top:14px;color:var(--text-2);font-size:19px}
.foot{border-top:1px solid var(--hairline);background:var(--stage)}
.foot-in{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;padding-top:28px;padding-bottom:28px;font-size:14px;color:var(--text-2)}
.foot a{color:var(--text-2)}

/* responsive */
@media (max-width:960px){
  .nav{display:none}
  .top-in .btn{margin-left:auto}
  .feature,.feature.rev{grid-template-columns:1fr;gap:28px;margin-top:56px}
  .feature.rev .ftext{order:0}
  .steps{grid-template-columns:1fr}
  .pilot{grid-template-columns:1fr;gap:32px}
  .br-d{display:none}
}
@media (max-width:600px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .hero{padding:44px 0 48px}
  .sec,.final{padding:64px 0}
  .video-shell{margin-top:28px;margin-left:-8px;margin-right:-8px}
  .video{border-radius:10px}
  .play{font-size:15px;padding:10px 18px 10px 10px;gap:10px}
  .play svg{width:28px;height:28px;padding:6px}
  .vbar{flex-wrap:wrap;font-size:13px}
  .ctas .btn{width:100%}
  .about{grid-template-columns:1fr;gap:20px}
  .avatar{width:72px;height:72px;font-size:24px}
  .offer-main{padding:26px 22px}
  .foot-in{flex-direction:column}
  .top-in{height:58px}
  .brand{font-size:18px}
}

/* legal pages (privacy, terms) */
.top-back{margin-left:auto}
.legal{padding:64px 0 96px}
.legal h1{font-size:clamp(32px,4.4vw,46px)}
.legal-meta{margin-top:14px;font-size:14px;color:var(--text-3)}
.legal h2{font-size:22px;letter-spacing:-.015em;margin-top:44px}
.legal h3{font-size:17px;margin-top:22px}
.legal p,.legal li{color:var(--text-2);font-size:16px}
.legal p{margin-top:12px}
.legal ul{margin:12px 0 0;padding-left:22px}
.legal li{margin-top:6px}
.legal .table-wrap{overflow-x:auto;margin-top:16px;border:1px solid var(--hairline);border-radius:var(--r-md)}
.legal table{width:100%;border-collapse:collapse;font-size:15px}
.legal th,.legal td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--hairline)}
.legal th{background:var(--bg);color:var(--text);font-weight:600}
.legal td{color:var(--text-2)}
.legal tr:last-child td{border-bottom:0}
.foot-links{display:inline-flex;gap:18px}
@media (max-width:600px){.legal{padding:40px 0 64px}.legal h2{margin-top:36px}}