/* Sartora — public website
   Canonical white-led editorial system.
   Tokens, base, components, layouts. */

:root{
  --ink:#0A0A0A;
  --char:#141414;
  --graph:#1F1F1F;
  --silver:#9A9A97;
  --silver2:#6E6E6B;
  --soft:#2A2A2A;
  --paper:#F4F4F2;
  --paper2:#ECECEA;
  --paper3:#DEDEDB;
  --paper4:#CFCFCC;
  --line: rgba(10,10,10,.12);
  --line2: rgba(10,10,10,.28);
  --chrome-grad: linear-gradient(180deg,#ffffff 0%,#d8d8d5 28%,#7d7d7a 52%,#d8d8d5 76%,#ffffff 100%);
  --glass: rgba(244,244,242,.78);

  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans: "Schibsted Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1320px;
  --gut: clamp(20px, 4vw, 56px);
  --rail: 1px solid var(--line);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--paper);color:var(--ink);}
html{scroll-behavior:smooth}
body{
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: 0;
}

img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}

/* Type ------------------------------------------------------------ */
.serif{font-family:var(--serif);font-weight:400;letter-spacing:0;}
.mono{font-family:var(--mono);font-weight:400;letter-spacing:.08em;text-transform:uppercase;font-size:11px;color:var(--silver2)}
.label{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--silver2)}

h1,h2,h3,h4{font-family:var(--serif);font-weight:400;letter-spacing:0;line-height:1.02}
h1{font-size: clamp(48px, 7.6vw, 116px); line-height:.96}
h2{font-size: clamp(36px, 4.8vw, 72px); line-height:.98}
h3{font-size: clamp(24px, 2.4vw, 36px); line-height:1.05}
h4{font-size: 22px; line-height:1.15}
p{font-size: 16px; line-height:1.6}
.lede{font-size: clamp(18px, 1.6vw, 22px); line-height:1.5; color:var(--char)}

.italic{font-style:italic}

/* Layout ---------------------------------------------------------- */
.wrap{max-width:var(--maxw); margin:0 auto; padding: 0 var(--gut);}
.section{padding: clamp(64px, 8vw, 128px) 0; border-top: var(--rail);}
.section.tight{padding: clamp(40px, 5vw, 72px) 0;}
.section.no-rail{border-top:0}

.grid{display:grid; gap: 24px}
.grid.cols-2{grid-template-columns: repeat(2, 1fr)}
.grid.cols-3{grid-template-columns: repeat(3, 1fr)}
.grid.cols-4{grid-template-columns: repeat(4, 1fr)}
.grid.cols-12{grid-template-columns: repeat(12, 1fr)}
@media (max-width: 900px){
  .grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns: 1fr}
  .grid.cols-12{grid-template-columns: repeat(6, 1fr)}
}

/* Header ---------------------------------------------------------- */
.site-head{
  position:sticky; top:0; z-index:50;
  background: var(--glass);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: var(--rail);
}
.site-head .bar{
  display:flex; align-items:center; justify-content:space-between;
  height:64px; gap:24px;
}
.brand{display:flex; align-items:center; gap:10px;}
.brand .mark{
  width:22px; height:22px; border-radius:50%;
  background: var(--chrome-grad);
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.18), 0 1px 2px rgba(0,0,0,.08);
}
.brand .word{font-family:var(--serif); font-size:22px; letter-spacing:0;}
.brand .word i{font-style:italic; color:var(--silver2)}

.nav{display:flex; align-items:center; gap: 22px;}
.nav .links{display:flex; align-items:center; gap: 22px;}
.nav a{
  font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color: var(--soft); padding: 8px 0; position:relative;
}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]::after{
  content:""; position:absolute; left:0; right:0; bottom:2px; height:1px; background:var(--ink);
}
.nav .cta{
  font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  border:1px solid var(--ink); color:var(--ink); padding:9px 14px; border-radius:999px;
  transition: background .18s ease, color .18s ease;
}
.nav .cta:hover{background:var(--ink); color:var(--paper)}

.menu-toggle{display:none}
@media (max-width: 980px){
  .nav .links{display:none !important}
  .nav.open .links{
    display:flex !important; flex-direction:column; align-items:flex-start; gap:18px;
    position:absolute; top:64px; left:0; right:0;
    background: var(--paper); border-bottom: var(--rail);
    padding: 22px var(--gut) 28px;
  }
  .menu-toggle{
    display:inline-flex; align-items:center; gap:8px;
    font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  }
  .menu-toggle .bars{width:18px; height:10px; position:relative;}
  .menu-toggle .bars::before,.menu-toggle .bars::after{
    content:""; position:absolute; left:0; right:0; height:1px; background:var(--ink);
  }
  .menu-toggle .bars::before{top:1px}.menu-toggle .bars::after{bottom:1px}
}

/* Buttons --------------------------------------------------------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--mono); font-size:11px; letter-spacing:.16em; text-transform:uppercase;
  padding:14px 22px; border-radius:999px;
  border:1px solid var(--ink); color:var(--ink); background: transparent;
  transition: background .18s ease, color .18s ease, transform .18s ease;
}
.btn:hover{background:var(--ink); color:var(--paper)}
.btn.solid{background:var(--ink); color:var(--paper)}
.btn.solid:hover{background:transparent; color:var(--ink)}
.btn .arrow{font-family:var(--serif); font-size:18px; letter-spacing:0; line-height:1; transform: translateY(-1px)}
.btn.lg{padding:16px 26px}
.btn.ghost{border-color: var(--line2)}

/* Marquee small ruler --------------------------------------------- */
.ruler{
  display:flex; align-items:center; gap:14px;
  font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--silver2)
}
.ruler::before,.ruler::after{content:""; flex:1; height:1px; background:var(--line)}

.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase;
  color:var(--silver2)
}
.eyebrow::before{content:""; width:24px; height:1px; background: var(--line2)}

/* Editorial silhouette panels (image placeholders) --------------- */
.silhouette{
  position:relative;
  background:
    linear-gradient(180deg, #fbfbf9 0%, #ececea 60%, #d8d8d5 100%);
  border:1px solid var(--line);
  overflow:hidden;
  isolation:isolate;
}
.silhouette::before{
  /* paper texture: subtle vertical fibers */
  content:""; position:absolute; inset:0;
  background-image:
    repeating-linear-gradient(90deg, rgba(10,10,10,.025) 0 1px, transparent 1px 3px),
    radial-gradient(120% 60% at 50% 0%, rgba(255,255,255,.7), transparent 60%);
  pointer-events:none; mix-blend-mode: multiply;
}
.silhouette::after{
  /* the figure: a soft column shadow as a stand-in */
  content:""; position:absolute; left:50%; bottom:0;
  width: 38%; height:78%; transform: translateX(-50%);
  background:
    radial-gradient(50% 60% at 50% 30%, rgba(10,10,10,.55), rgba(10,10,10,.18) 60%, transparent 75%),
    linear-gradient(180deg, rgba(10,10,10,.0), rgba(10,10,10,.35));
  filter: blur(.4px);
  border-radius: 48% 48% 12% 12% / 30% 30% 8% 8%;
}
.silhouette .cap{
  position:absolute; left:14px; bottom:14px; right:14px;
  display:flex; justify-content:space-between; align-items:end; gap:12px;
  font-family:var(--mono); font-size:10px; letter-spacing:.16em; text-transform:uppercase;
  color: var(--char);
}
.silhouette .cap .r{color:var(--silver2)}

.silhouette.tall{aspect-ratio: 3/4.4}
.silhouette.std{aspect-ratio: 4/5}
.silhouette.wide{aspect-ratio: 16/10}

/* Variant stand-ins for try-on triptych */
.silhouette.v-lina::after{ background:
  radial-gradient(40% 55% at 50% 28%, rgba(10,10,10,.62), rgba(10,10,10,.2) 60%, transparent 75%),
  linear-gradient(180deg, transparent, rgba(10,10,10,.32));
  width:32%; height:80%;
}
.silhouette.v-amara::after{ background:
  radial-gradient(45% 58% at 50% 26%, rgba(10,10,10,.6), rgba(10,10,10,.18) 62%, transparent 76%),
  linear-gradient(180deg, transparent, rgba(10,10,10,.28));
  width:36%; height:82%;
}
.silhouette.v-sofia::after{ background:
  radial-gradient(48% 60% at 50% 24%, rgba(10,10,10,.58), rgba(10,10,10,.16) 60%, transparent 78%),
  linear-gradient(180deg, transparent, rgba(10,10,10,.3));
  width:40%; height:78%;
}

/* Hero fitting chamber ------------------------------------------- */
.hero{
  position:relative;
  padding-top: clamp(40px, 5vw, 64px);
  padding-bottom: clamp(40px, 5vw, 88px);
}
.hero .top{
  display:flex; justify-content:space-between; gap:24px;
  font-family:var(--mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase;
  color: var(--silver2);
  padding-bottom: 28px; border-bottom: var(--rail);
}
.hero .lede-row{
  display:grid; grid-template-columns: 1.2fr 1fr; gap: 56px;
  padding: 36px 0 28px;
}
@media (max-width: 900px){ .hero .lede-row{grid-template-columns: 1fr; gap:24px} }
.hero h1 .it{font-style:italic; color:var(--silver2)}
.hero .lede{max-width: 44ch}
.hero .ctas{display:flex; gap:12px; flex-wrap:wrap; margin-top:18px}

.chamber{
  position:relative;
  margin-top: 28px;
  display:grid; grid-template-columns: 1fr 1.3fr 1fr; gap: 1px;
  background: var(--line);
  border:1px solid var(--line);
}
.chamber > .pane{
  background: var(--paper);
  padding: 22px;
  min-height: 420px;
  display:flex; flex-direction:column; gap:14px;
}
.chamber .pane.center{padding:0}
.chamber .pane.center .silhouette{height:100%; aspect-ratio: auto}
.chamber .meta-row{display:flex; justify-content:space-between; gap:8px}
.chamber .swatch{
  display:flex; align-items:center; gap:10px;
  padding: 10px 12px; border:1px solid var(--line); background:#fff;
}
.chamber .swatch .chip{width:18px; height:18px; border-radius:50%; border:1px solid var(--line)}
.chamber .num{font-family:var(--serif); font-size:48px; line-height:1}
.chamber .scrub{
  height:1px; background: var(--line2); position:relative; margin-top:auto;
}
.chamber .scrub::before{content:""; position:absolute; left:0; top:-2px; height:5px; width:42%; background: var(--ink)}
@media (max-width: 900px){
  .chamber{grid-template-columns: 1fr}
  .chamber > .pane{min-height: auto}
  .chamber .pane.center .silhouette{aspect-ratio: 4/5}
}

/* Numbered process row ------------------------------------------- */
.process{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border-top: var(--rail); border-bottom: var(--rail);
}
.process .step{
  padding: 36px 28px;
  border-right: var(--rail);
  display:flex; flex-direction:column; gap: 18px;
  min-height: 240px;
}
.process .step:last-child{border-right:0}
.process .num{font-family:var(--serif); font-size:64px; line-height:1; color:var(--ink)}
.process .num i{font-style:italic; color:var(--silver2)}
.process h4{font-size: 22px}
.process p{color:var(--char); font-size:15px; max-width: 28ch}
@media (max-width: 900px){
  .process{grid-template-columns: 1fr 1fr}
  .process .step{border-bottom: var(--rail)}
  .process .step:nth-child(2n){border-right:0}
  .process .step:nth-last-child(-n+2){border-bottom:0}
}
@media (max-width: 560px){
  .process{grid-template-columns: 1fr}
  .process .step{border-right:0; border-bottom: var(--rail)}
  .process .step:last-child{border-bottom:0}
}

/* Two-column editorial blocks ------------------------------------ */
.split{display:grid; grid-template-columns: 5fr 7fr; gap: clamp(28px, 5vw, 80px); align-items:start}
.split.flip{grid-template-columns: 7fr 5fr}
@media (max-width: 900px){ .split,.split.flip{grid-template-columns: 1fr} }

.kicker-row{
  display:flex; justify-content:space-between; gap:16px;
  padding-bottom: 28px; border-bottom: var(--rail); margin-bottom: 36px;
}
.kicker-row .l{font-family:var(--mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--silver2)}
.kicker-row .r{font-family:var(--mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--silver2)}

/* Cards ----------------------------------------------------------- */
.card{
  background:#fff; border:1px solid var(--line);
  padding: 24px; display:flex; flex-direction:column; gap:14px;
  min-height: 220px;
}
.card .label{margin-bottom:0}
.card h4{font-size: 22px}
.card p{color:var(--char); font-size:15px}
.card .foot{
  margin-top:auto; display:flex; justify-content:space-between; align-items:end; gap:12px;
  font-family:var(--mono); font-size:10px; letter-spacing:.18em; text-transform:uppercase; color:var(--silver2)
}

.card.guide{
  padding: 0; min-height: 360px; overflow:hidden;
  display:grid; grid-template-rows: 200px auto;
}
.card.guide .silhouette{height:100%; aspect-ratio:auto; border:0; border-bottom:1px solid var(--line)}
.card.guide .body{padding: 22px; display:flex; flex-direction:column; gap:10px}
.card.guide h4{font-family:var(--serif); font-size: 26px; line-height:1.05; max-width: 22ch}
.card.guide .meta{display:flex; justify-content:space-between; gap:10px; margin-top: 14px}

/* FAQ ------------------------------------------------------------- */
.faq{border-top: var(--rail)}
.faq details{
  border-bottom: var(--rail);
  padding: 24px 0; cursor:pointer;
}
.faq summary{
  list-style:none; display:flex; justify-content:space-between; align-items:baseline; gap:24px;
  font-family:var(--serif); font-size: clamp(22px, 2.4vw, 30px); line-height:1.1;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .sign{font-family:var(--mono); font-size:14px; letter-spacing:.1em; color:var(--silver2)}
.faq details[open] summary .sign{color:var(--ink)}
.faq .a{padding-top: 14px; max-width: 70ch; color:var(--char); font-size:16px; line-height:1.6}

/* Footer ---------------------------------------------------------- */
.site-foot{
  border-top: var(--rail);
  background: var(--paper);
  padding: 64px 0 28px;
}
.site-foot .top{
  display:grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px;
  padding-bottom: 48px; border-bottom: var(--rail);
}
@media (max-width: 900px){ .site-foot .top{grid-template-columns: 1fr 1fr} }
.site-foot h5{
  font-family:var(--mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase;
  color:var(--silver2); margin-bottom: 18px; font-weight:400;
}
.site-foot ul{list-style:none; display:flex; flex-direction:column; gap:10px}
.site-foot a{font-size:14px; color:var(--soft)}
.site-foot a:hover{color:var(--ink)}
.site-foot .word{font-family:var(--serif); font-size:36px; letter-spacing:0}
.site-foot .word i{font-style:italic; color:var(--silver2)}
.site-foot .legal{
  margin-top: 28px;
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
  font-family:var(--mono); font-size:10px; letter-spacing:.16em; text-transform:uppercase; color:var(--silver2)
}

/* Disclosure / trust block --------------------------------------- */
.disclosure{
  border:1px solid var(--line); padding: clamp(28px, 4vw, 56px);
  background: #fff;
  display:grid; grid-template-columns: 1fr 1.4fr; gap: 40px;
}
@media (max-width: 900px){ .disclosure{grid-template-columns: 1fr} }
.disclosure h3{font-size: clamp(28px, 3vw, 44px)}
.disclosure ul{list-style:none; display:flex; flex-direction:column; gap:14px}
.disclosure li{display:flex; gap:14px; padding: 14px 0; border-top:1px solid var(--line)}
.disclosure li:first-child{border-top:0}
.disclosure li .num{font-family:var(--mono); font-size:11px; letter-spacing:.14em; color:var(--silver2); min-width: 32px}
.disclosure li .t{font-family:var(--serif); font-size:18px; line-height:1.35; max-width: 48ch}

/* Generic page hero ---------------------------------------------- */
.page-hero{
  padding: clamp(56px, 8vw, 120px) 0 clamp(40px, 5vw, 64px);
  border-bottom: var(--rail);
}
.page-hero .meta{
  display:flex; justify-content:space-between; gap:24px;
  padding-bottom: 24px; margin-bottom: 36px; border-bottom: var(--rail);
  font-family:var(--mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--silver2)
}
.page-hero h1{max-width: 18ch}
.page-hero h1 .it{font-style:italic; color:var(--silver2)}
.page-hero .lede{margin-top: 24px; max-width: 60ch}
.page-hero .ctas{display:flex; gap:12px; flex-wrap:wrap; margin-top: 28px}

/* Diagrams (chrome rules + index marks) -------------------------- */
.chrome-rule{
  height:6px; border-radius:3px; background: var(--chrome-grad);
  border:1px solid rgba(0,0,0,.12);
}
.index-mark{
  display:inline-flex; align-items:center; justify-content:center;
  width:28px; height:28px; border:1px solid var(--ink); border-radius:50%;
  font-family:var(--mono); font-size:11px; letter-spacing:.05em;
}

/* Long-form (legal pages) ---------------------------------------- */
.longform{
  max-width: 760px; margin: 0 auto;
  padding: clamp(48px, 6vw, 96px) 0;
}
.longform h1{font-size: clamp(40px, 5vw, 72px); margin-bottom: 8px}
.longform .meta{font-family:var(--mono); font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--silver2); margin-bottom: 40px}
.longform h2{font-size: 28px; margin: 40px 0 12px; font-family:var(--serif)}
.longform h3{font-size: 18px; font-family:var(--sans); font-weight:600; margin: 24px 0 8px; letter-spacing:0}
.longform p, .longform li{font-size: 15px; line-height: 1.7; color: var(--char)}
.longform p, .longform ul, .longform ol{margin-bottom: 14px}
.longform ul, .longform ol{padding-left: 22px}
.longform a{text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--line2)}
.longform a:hover{text-decoration-color: var(--ink)}

/* Utility -------------------------------------------------------- */
.divider{height:1px; background:var(--line); margin: 24px 0}
.spacer-sm{height:24px}
.spacer{height:48px}
.spacer-lg{height:96px}
.right{text-align:right}
.center{text-align:center}
.muted{color:var(--silver2)}
.hairline-top{border-top: var(--rail)}
.hairline-bot{border-bottom: var(--rail)}

/* Form (waitlist) ------------------------------------------------ */
.waitlist{
  border:1px solid var(--line2); background:#fff;
  padding: 8px; border-radius: 999px;
  display:flex; align-items:center; gap:8px; max-width: 480px;
}
.waitlist input{
  flex:1; border:0; outline:0; background:transparent;
  padding: 10px 14px; font-family: var(--sans); font-size: 14px; color: var(--ink);
}
.waitlist input::placeholder{color: var(--silver)}
.waitlist button{
  font-family:var(--mono); font-size:11px; letter-spacing:.16em; text-transform:uppercase;
  background: var(--ink); color: var(--paper); border-radius:999px;
  padding: 10px 16px;
}

/* Tag pill ------------------------------------------------------- */
.tag{
  display:inline-flex; align-items:center; gap:8px;
  padding: 6px 10px; border:1px solid var(--line); border-radius:999px;
  font-family:var(--mono); font-size:10px; letter-spacing:.16em; text-transform:uppercase;
  color: var(--char); background:#fff;
}
.tag .dot{width:6px; height:6px; border-radius:50%; background: var(--ink)}

/* Use-case row --------------------------------------------------- */
.use-row{
  display:grid; grid-template-columns: 1fr 1fr 1fr 1fr 1fr; gap:0;
  border-top: var(--rail); border-bottom: var(--rail);
}
.use-row .cell{padding: 28px 22px; border-right: var(--rail); display:flex; flex-direction:column; gap: 12px; min-height: 200px}
.use-row .cell:last-child{border-right:0}
.use-row .cell .n{font-family:var(--mono); font-size:11px; letter-spacing:.16em; color:var(--silver2)}
.use-row .cell h4{font-size: 22px; max-width: 14ch}
.use-row .cell p{font-size: 14px; color: var(--char)}
@media (max-width: 980px){
  .use-row{grid-template-columns: 1fr 1fr}
  .use-row .cell{border-bottom: var(--rail)}
  .use-row .cell:nth-child(2n){border-right:0}
}
@media (max-width: 560px){
  .use-row{grid-template-columns: 1fr}
  .use-row .cell{border-right:0}
  .use-row .cell:last-child{border-bottom:0}
}

/* Partners marquee row ------------------------------------------ */
.partners-row{
  display:flex; flex-wrap:wrap; gap: 0;
  border-top: var(--rail); border-bottom: var(--rail);
}
.partners-row .slot{
  flex:1 1 200px;
  border-right: var(--rail);
  padding: 28px 22px;
  display:flex; flex-direction:column; gap:8px; align-items:flex-start;
  min-height: 120px;
}
.partners-row .slot:last-child{border-right:0}
.partners-row .slot .name{font-family:var(--serif); font-size: 22px}
.partners-row .slot .kind{font-family:var(--mono); font-size:10px; letter-spacing:.18em; text-transform:uppercase; color:var(--silver2)}

/* Skip link ------------------------------------------------------ */
.skip{position:absolute; left:-9999px}
.skip:focus{left:16px; top:16px; background:#fff; padding:8px 12px; border:1px solid var(--ink); z-index:100}