/* Infrastructure Elements — website components (v0.1 DRAFT). Uses tokens.css. */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--ie-surface);color:var(--ie-ink);font-family:var(--ie-font);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--ie-brand)}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
.center{text-align:center}
.muted{color:var(--ie-muted)}

/* ---------- type ---------- */
h1,h2,h3{font-family:var(--ie-font-display);letter-spacing:-.025em;line-height:1.08;margin:0}
h1{font-size:clamp(40px,5.6vw,66px);font-weight:700}
h2{font-size:clamp(30px,4vw,48px);font-weight:700}
h3{font-size:20px;font-weight:650;letter-spacing:-.01em;line-height:1.3}
p{margin:0 0 16px}
.lede{font-size:clamp(18px,2vw,21px);color:var(--ie-ink-2);line-height:1.55}
.chip{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ie-brand);background:var(--ie-brand-soft);border-radius:var(--ie-r-pill);padding:6px 14px}
.chip i{width:8px;height:8px;border-radius:50%;background:var(--ie-highlight)}
.kicker{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ie-brand);margin:0 0 14px}
.hl{background:linear-gradient(transparent 62%, var(--ie-highlight-soft) 62%);padding:0 .06em}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:600;font-size:16px;border-radius:var(--ie-r-pill);padding:14px 24px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .15s ease, background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--ie-ink);color:#fff}
.btn-primary:hover{background:var(--ie-brand);color:#fff}
.btn-ghost{background:#fff;color:var(--ie-ink);border-color:var(--ie-line)}
.btn-ghost:hover{border-color:var(--ie-ink);color:var(--ie-ink)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.82);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid rgba(227,231,240,.7)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ie-ink);font-weight:700;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
.logo-mark{display:grid;grid-template-columns:repeat(3,7px);gap:2px}
.logo-mark i{width:7px;height:7px;border-radius:2px;background:var(--ie-line)}
.logo-mark i:nth-child(1){background:var(--ie-op)}.logo-mark i:nth-child(2){background:var(--ie-sd)}.logo-mark i:nth-child(3){background:var(--ie-pp)}
.logo-mark i:nth-child(5){background:var(--ie-sp)}.logo-mark i:nth-child(6){background:var(--ie-gr)}.logo-mark i:nth-child(9){background:var(--ie-gr)}
.nav-links{display:flex;gap:28px}
.nav-links a{color:var(--ie-ink-2);text-decoration:none;font-size:15px;font-weight:500}
.nav-links a:hover{color:var(--ie-ink)}
.nav .btn{padding:10px 18px;font-size:15px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(600px 380px at 12% 8%, rgba(61,77,183,.10), transparent 70%),
  radial-gradient(520px 360px at 92% 20%, rgba(20,160,152,.10), transparent 70%),
  radial-gradient(700px 420px at 60% 100%, rgba(217,147,17,.08), transparent 70%),
  linear-gradient(180deg,var(--ie-canvas) 0%, #fff 100%);
  padding:84px 0 96px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero h1{margin:22px 0 22px}
.hero .lede{max-width:560px;margin-bottom:32px}
.hero-note{font-size:14px;color:var(--ie-muted);margin-top:18px}

/* floating product cards */
.stage{position:relative;min-height:520px}
.card{background:var(--ie-surface);border:1px solid var(--ie-line);border-radius:var(--ie-r-md);box-shadow:var(--ie-shadow-2)}
.float{position:absolute;padding:18px}
.f-pulse{top:0;left:0;width:58%}
.f-stage{top:36px;right:0;width:38%}
.f-table{top:250px;left:4%;width:50%}
.f-owner{top:292px;right:0;width:42%}
.card-title{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:650;color:var(--ie-ink);margin-bottom:12px}
.tag{font-size:11px;font-weight:650;color:var(--ie-muted);background:var(--ie-canvas);border-radius:var(--ie-r-pill);padding:3px 9px}
.metric{display:flex;justify-content:space-between;align-items:center;font-size:13px;padding:7px 0;border-top:1px solid var(--ie-line);color:var(--ie-ink-2)}
.metric b{color:var(--ie-ink);font-weight:650}
.up{color:var(--ie-good);font-weight:650;font-size:12px}
.down{color:var(--ie-good);font-weight:650;font-size:12px}
.bar{height:8px;background:var(--ie-canvas-2);border-radius:var(--ie-r-pill);overflow:hidden;margin:6px 0 10px}
.bar i{display:block;height:100%;background:var(--ie-s1);border-radius:inherit}
.steps-mini{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;font-size:11px;font-weight:650;color:var(--ie-muted);text-align:center}
.steps-mini span{padding:6px 0;border-radius:6px;background:var(--ie-canvas)}
.steps-mini span.on{background:var(--ie-s1);color:#fff}
.mini-table{display:grid;grid-template-columns:repeat(5,1fr);gap:5px}
.mini-table i{aspect-ratio:1;border-radius:5px;display:grid;place-items:center;font-style:normal;font-size:10px;font-weight:700;color:#fff}
.mini-table i.e{visibility:hidden}
.owner{display:flex;align-items:center;gap:10px;font-size:13px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--ie-gr-soft);color:var(--ie-gr);display:grid;place-items:center;font-weight:700;font-size:12px}
.score{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:12px;color:var(--ie-muted)}
.score b{font-size:22px;color:var(--ie-ink);letter-spacing:-.02em}
.illus{position:absolute;right:0;top:-28px;font-size:12px;color:var(--ie-muted)}

/* ---------- strip of industries ---------- */
.band{padding:36px 0;border-bottom:1px solid var(--ie-line)}
.band p{margin:0 0 14px;font-size:14px;color:var(--ie-muted);text-align:center}
.pills{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.pills span{font-size:14px;font-weight:550;color:var(--ie-ink-2);border:1px solid var(--ie-line);border-radius:var(--ie-r-pill);padding:7px 16px;background:#fff}

/* ---------- sections ---------- */
.section{padding:104px 0}
.section.tint{background:var(--ie-canvas)}
.section-head{max-width:760px;margin:0 auto 56px;text-align:center}
.section-head .lede{margin-top:18px}

/* problem */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.quote-card{padding:36px;border-radius:var(--ie-r-lg);background:var(--ie-ink);color:#fff;box-shadow:var(--ie-shadow-2)}
.quote-card p{font-size:22px;line-height:1.45;letter-spacing:-.01em;margin:0}
.quote-card small{display:block;margin-top:18px;color:#aab3c8;font-size:14px}

/* six numbers */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature{padding:28px;border-radius:var(--ie-r-md);background:#fff;border:1px solid var(--ie-line);box-shadow:var(--ie-shadow-1)}
.feature .ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:15px;margin-bottom:18px}
.feature h3{margin-bottom:8px}
.feature p{color:var(--ie-ink-2);font-size:16px;margin:0}

/* how it works */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{padding:28px;border-radius:var(--ie-r-md);background:#fff;border:1px solid var(--ie-line);position:relative}
.step .n{font-size:13px;font-weight:700;color:var(--ie-muted);margin-bottom:26px;display:block}
.step h3{margin-bottom:8px}
.step p{font-size:15px;color:var(--ie-ink-2);margin:0}

/* periodic table */
.ptable{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;max-width:1000px;margin:0 auto}
.pcol-h{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;text-align:center;padding-bottom:4px}
.el{border-radius:14px;color:#fff;padding:12px 14px 14px;min-height:132px;display:flex;flex-direction:column;position:relative;transition:transform .15s ease, box-shadow .15s ease}
.el:hover{transform:translateY(-3px);box-shadow:var(--ie-shadow-2)}
.el .top{display:flex;justify-content:space-between;font-size:12px;font-weight:600;opacity:.95}
.el .st{background:rgba(255,255,255,.22);border-radius:var(--ie-r-pill);padding:1px 8px}
.el .code{font-family:var(--ie-font-display);font-size:28px;font-weight:800;letter-spacing:-.02em;margin:6px 0 2px;text-align:center}
.el .code small{font-size:14px;font-weight:700;margin-left:2px}
.el .nm{font-size:13px;line-height:1.3;text-align:center;font-weight:600}
.el.blank{background:transparent;min-height:0}
.legend{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px;margin-top:32px;font-size:14px;color:var(--ie-ink-2)}
.legend b{font-weight:650;color:var(--ie-ink)}

/* offers (pricing-card style) */
.offers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.offer{padding:32px;border-radius:var(--ie-r-lg);background:#fff;border:1px solid var(--ie-line);display:flex;flex-direction:column}
.offer.featured{background:var(--ie-ink);color:#fff;border-color:var(--ie-ink);box-shadow:var(--ie-shadow-2)}
.offer .when{font-size:13px;font-weight:650;color:var(--ie-brand);background:var(--ie-brand-soft);border-radius:var(--ie-r-pill);padding:4px 12px;align-self:flex-start;margin-bottom:18px}
.offer.featured .when{background:rgba(255,255,255,.12);color:#fff}
.offer h3{font-size:24px;margin-bottom:10px}
.offer p{color:var(--ie-ink-2);font-size:16px}
.offer.featured p{color:#c9d0e0}
.offer ul{list-style:none;padding:0;margin:8px 0 24px;flex:1}
.offer li{font-size:15px;padding:8px 0 8px 28px;position:relative;border-top:1px solid var(--ie-line)}
.offer.featured li{border-color:rgba(255,255,255,.12)}
.offer li::before{content:"";position:absolute;left:2px;top:14px;width:14px;height:8px;border-left:2px solid var(--ie-pp);border-bottom:2px solid var(--ie-pp);transform:rotate(-45deg)}
.offer.featured li::before{border-color:#7fd3a6}
.offer .btn{width:100%}
.offer.featured .btn-primary{background:#fff;color:var(--ie-ink)}
.offer.featured .btn-primary:hover{background:var(--ie-highlight-soft)}

/* book */
.book{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;align-items:center}
.cover{aspect-ratio:6/9;max-width:340px;margin:0 auto;border-radius:6px 14px 14px 6px;background:#fff;border:1px solid var(--ie-line);box-shadow:var(--ie-shadow-2), inset 10px 0 0 rgba(15,26,51,.04);padding:30px 26px;display:flex;flex-direction:column;justify-content:space-between;text-align:center}
.cover .t{font-family:var(--ie-font-display);font-weight:800;font-size:34px;letter-spacing:.02em;line-height:1}
.cover .s{font-size:13px;font-weight:600;color:var(--ie-ink-2);margin-top:10px;letter-spacing:.02em}
.cover .sub{font-size:15px;font-weight:600;color:var(--ie-ink)}
.cover .b{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--ie-muted)}
.cover .mini-table{width:190px;margin:0 auto}

/* signup */
.signup{border-radius:var(--ie-r-lg);background:var(--ie-ink);color:#fff;padding:56px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;position:relative;overflow:hidden}
.signup::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle, rgba(61,77,183,.55), transparent 70%)}
.signup h2{font-size:clamp(28px,3.4vw,40px)}
.signup p{color:#c9d0e0}
.signup form{position:relative;z-index:1}
.signup label{display:block;font-size:13px;font-weight:600;color:#c9d0e0;margin-bottom:6px}
.signup input{width:100%;font:inherit;font-size:16px;padding:13px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;margin-bottom:14px}
.signup input::placeholder{color:#8e98b0}
.signup input:focus{outline:2px solid #8fa0ff;outline-offset:1px}
.signup button{width:100%;background:#fff;color:var(--ie-ink);border:0}
.signup button:hover{background:var(--ie-highlight-soft)}
.fine{font-size:13px;color:#98a2b8;margin:12px 0 0}
.fine a{color:#c9d0e0}

/* callout card */
.callout{border-radius:var(--ie-r-lg);background:var(--ie-surface);border:1px solid var(--ie-line);border-left:6px solid var(--ie-sd);box-shadow:var(--ie-shadow-1);padding:40px 44px;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.callout h2{font-size:clamp(26px,3vw,36px)}
@media (max-width:820px){.callout{grid-template-columns:1fr;gap:20px;padding:28px 22px}}

/* tools list */
.tools{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tool{padding:22px;border-radius:var(--ie-r-md);background:#fff;border:1px solid var(--ie-line)}
.tool .ico{width:36px;height:36px;border-radius:10px;margin-bottom:14px}
.tool h3{font-size:16px;margin-bottom:6px}
.tool p{font-size:14px;color:var(--ie-ink-2);margin:0}
.terms{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.term{padding:20px 22px;border-radius:var(--ie-r-md);background:var(--ie-canvas);border:1px solid var(--ie-line)}
.term h3{font-size:15px;margin-bottom:4px}
.term p{font-size:14px;color:var(--ie-ink-2);margin:0}
@media (max-width:760px){.terms{grid-template-columns:1fr}}
.soon.free{color:var(--ie-pp);background:var(--ie-pp-soft)}
.soon{display:inline-block;font-size:11px;font-weight:700;color:var(--ie-sd);background:var(--ie-sd-soft);border-radius:var(--ie-r-pill);padding:2px 8px;margin-top:10px}

/* footer */
footer{background:var(--ie-canvas);border-top:1px solid var(--ie-line);padding:56px 0 36px;font-size:14px;color:var(--ie-muted)}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.foot h4{font-size:13px;color:var(--ie-ink);margin:0 0 12px}
.foot a{display:block;color:var(--ie-ink-2);text-decoration:none;padding:3px 0}
.foot a:hover{color:var(--ie-ink)}
.foot a.logo{display:flex;padding:0}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:40px;padding-top:24px;border-top:1px solid var(--ie-line)}

/* simple page */
.page{padding:88px 0}
.page .wrap{max-width:760px}
.page h1{font-size:clamp(36px,5vw,52px);margin-bottom:24px}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .hero-grid,.split,.book,.signup{grid-template-columns:1fr}
  .stage{min-height:500px;max-width:620px;margin:0 auto;width:100%}
  .steps{grid-template-columns:repeat(2,1fr)}
  .tools{grid-template-columns:repeat(3,1fr)}
  .offers{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .nav-links{display:none}
  .foot{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .wrap{padding:0 18px}
  .hero{padding:48px 0 64px}
  .section{padding:72px 0}
  .grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .tools{grid-template-columns:1fr 1fr}
  .stage{min-height:690px}
  .f-pulse{width:86%;left:0;top:0}
  .f-stage{width:62%;top:190px;right:0}
  .f-table{width:62%;top:320px;left:0}
  .f-owner{width:58%;top:548px;right:0}
  .ptable{gap:6px}
  .el{padding:8px 4px;min-height:92px;border-radius:9px}
  .el .code{font-size:17px}.el .code small{font-size:10px}
  .el .nm{font-size:9.5px}
  .el .top{font-size:9px}
  .el .st{padding:0 4px}
  .pcol-h{font-size:8.5px;letter-spacing:.02em}
  .signup{padding:32px 22px}
  .nav .btn{display:none}
  .foot{grid-template-columns:1fr}
  .cover{max-width:260px}
}