/* ==========================================================================
   CursusOS product site
   Design system. Tokens carried from the CursusOS pitch deck build.
   ========================================================================== */

:root{
  /* surfaces */
  --canvas:#fbf6ee;
  --paper:#f5eee2;
  --white:#ffffff;
  --border:#ece0d0;
  --border-soft:#f1e7d9;

  /* ink */
  --ink:#17130f;
  --ink-800:#221c16;
  --ink-700:#2b241c;
  --ink-600:#3a3128;
  --ink-body:#2a211a;
  --muted:#8c7f70;
  --ink-fg:#f5eee4;
  --ink-muted:#a69a8b;

  /* accent */
  --accent:#32ae74;
  --accent-lift:#45c589;
  --accent-deep:#279463;
  --ink-accent:#4ade80;

  /* status tints */
  --st-green-bg:#dff2e7;  --st-green-fg:#276a48;
  --st-blue-bg:#dbeafb;   --st-blue-fg:#2b5c8a;
  --st-purple-bg:#eae2f7; --st-purple-fg:#5b4a8a;
  --st-gold-bg:#faedc4;   --st-gold-fg:#7a5a10;
  --st-amber-bg:#fbe7cf;  --st-amber-fg:#8a5b26;
  --st-red-bg:#fbe3e1;    --st-red-fg:#8a3b33;

  /* founding school */
  --ardere-crimson:#7a1232;
  --ardere-gold:#c9a870;

  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Segoe UI Variable","Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --nav-h:60px;
  --pad:clamp(20px,5vw,64px);
  --maxw:1240px;
  --narrow:960px;

  --ease:cubic-bezier(.22,.68,.28,1);
  --shadow-lg:0 30px 90px rgba(42,33,26,.16),0 6px 20px rgba(42,33,26,.07);
  --shadow-md:0 14px 40px rgba(42,33,26,.11);
  --shadow-sm:0 2px 8px rgba(42,33,26,.06);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--canvas);
  color:var(--ink-body);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,video,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
::selection{background:rgba(50,174,116,.24)}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.wrap.narrow{max-width:var(--narrow)}
.sec{padding:clamp(72px,10vw,132px) 0;position:relative}
.sec.tight{padding:clamp(52px,7vw,88px) 0}
.sec.paper{background:var(--paper)}
.sec.white{background:var(--white)}
.sec.dark{background:var(--ink);color:var(--ink-fg)}
.sec.dark .lede,.sec.dark .body,.sec.dark p{color:var(--ink-muted)}
.sec.dark h1,.sec.dark h2,.sec.dark h3,.sec.dark h4{color:var(--ink-fg)}
.sec.dark .eyebrow{color:var(--ink-muted)}
.sec.dark .eyebrow::after{background:var(--ink-600)}
.sec.dark strong{color:var(--ink-fg)}
.hr{height:1px;background:var(--border);border:0}
.sec.dark .hr{background:var(--ink-600)}

/* ---------- type ---------- */
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.028em;line-height:1.04;font-weight:700;text-wrap:balance}
h1{font-size:clamp(40px,6.6vw,86px);letter-spacing:-.035em}
h2{font-size:clamp(31px,4.4vw,56px);letter-spacing:-.032em;line-height:1.06}
h3{font-size:clamp(21px,2.3vw,29px);letter-spacing:-.024em;line-height:1.14}
h4{font-size:18px;letter-spacing:-.016em;line-height:1.25}
p{color:var(--muted)}
.lede{font-size:clamp(18px,2vw,25px);line-height:1.42;color:var(--muted);letter-spacing:-.014em;max-width:34ch;text-wrap:pretty}
.lede.wide{max-width:52ch}
.body{font-size:16px;line-height:1.6;color:var(--muted)}
.body.sm{font-size:14.5px;line-height:1.58}
.eyebrow{
  font-size:11px;font-weight:700;letter-spacing:.19em;text-transform:uppercase;
  color:var(--muted);display:flex;align-items:center;gap:12px;margin-bottom:18px;
}
.eyebrow::after{content:"";flex:1;height:1px;background:var(--border)}
.eyebrow.plain::after{display:none}
.eyebrow.accent{color:var(--accent-deep)}
strong{color:var(--ink);font-weight:650}
.center{text-align:center}
.center .lede{margin-left:auto;margin-right:auto}
.center .eyebrow{justify-content:center}
.center .eyebrow::after{display:none}
.center .eyebrow::before{display:none}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.02em}
.grad{
  background:linear-gradient(96deg,var(--ink) 12%,var(--accent-deep) 62%,var(--accent) 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.sec.dark .grad{background:linear-gradient(96deg,#fff 18%,var(--ink-accent) 88%);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:200;
  background:rgba(251,246,238,.78);
  backdrop-filter:saturate(180%) blur(22px);-webkit-backdrop-filter:saturate(180%) blur(22px);
  border-bottom:1px solid transparent;transition:border-color .3s ease,background .3s ease;
}
.nav.scrolled{border-bottom-color:var(--border)}
.nav .inner{
  height:var(--nav-h);max-width:var(--maxw);margin:0 auto;
  padding-left:var(--pad);padding-right:var(--pad);
  display:flex;align-items:center;gap:26px;
}
.nav .logo{display:flex;align-items:center;gap:9px;flex:none}
.nav .logo svg{height:19px;width:auto;fill:var(--ink)}
.nav .logo .os{
  font-size:9px;font-weight:800;letter-spacing:.12em;color:#fff;background:var(--accent);
  border-radius:5px;padding:2px 5px;line-height:1;transform:translateY(-5px)
}
.navlinks{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap}
.navlinks a{
  font-size:13.5px;font-weight:500;color:var(--ink-body);opacity:.82;
  padding:8px 12px;border-radius:9px;transition:opacity .2s,background .2s;white-space:nowrap;
}
.navlinks a:hover{opacity:1;background:rgba(42,33,26,.05)}
.navlinks a.on{opacity:1;font-weight:650}
.nav .cta{
  background:var(--ink);color:#fff;font-size:13.5px;font-weight:600;
  padding:9px 17px;border-radius:999px;transition:transform .2s var(--ease),background .2s;
  white-space:nowrap;flex:none;
}
.nav .cta:hover{background:var(--accent-deep);transform:translateY(-1px)}
.burger{display:none;margin-left:auto;width:38px;height:38px;border-radius:10px;flex-direction:column;align-items:center;justify-content:center}
.burger span{display:block;width:17px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.burger span+span{margin-top:5px}
.nav.open .burger span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.nav.open .burger span:nth-child(2){opacity:0}
.nav.open .burger span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

.drawer{
  position:fixed;inset:var(--nav-h) 0 auto 0;z-index:190;
  background:rgba(251,246,238,.97);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);
  border-bottom:1px solid var(--border);
  max-height:0;overflow:hidden;transition:max-height .42s var(--ease);
}
.drawer.open{max-height:min(78vh,720px);overflow-y:auto}
.drawer .dwrap{padding:14px var(--pad) 30px;max-width:var(--maxw);margin:0 auto}
.drawer h5{font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin:20px 0 6px;font-weight:700}
.drawer a{display:block;padding:11px 0;font-size:17px;font-weight:550;color:var(--ink);border-bottom:1px solid var(--border-soft)}
.drawer .dcta{margin-top:22px;display:block;text-align:center;background:var(--ink);color:#fff;border-radius:999px;padding:14px;font-weight:650;border:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-size:15.5px;font-weight:600;letter-spacing:-.01em;
  padding:13px 25px;border-radius:999px;transition:transform .22s var(--ease),background .22s,box-shadow .22s,border-color .22s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:var(--accent);color:#fff;box-shadow:0 6px 20px rgba(50,174,116,.28)}
.btn.primary:hover{background:var(--accent-deep);box-shadow:0 10px 28px rgba(50,174,116,.34)}
.btn.dark{background:var(--ink);color:#fff}
.btn.dark:hover{background:var(--ink-700)}
.btn.ghost{border:1px solid var(--border);background:rgba(255,255,255,.6);color:var(--ink)}
.btn.ghost:hover{border-color:#d9c9b2;background:#fff}
.sec.dark .btn.ghost{border-color:var(--ink-600);background:transparent;color:var(--ink-fg)}
.sec.dark .btn.ghost:hover{border-color:#5b4f42;background:rgba(255,255,255,.05)}
.btn.link{padding:0;color:var(--accent-deep);font-size:15.5px}
.btn.link:hover{transform:none;text-decoration:underline;text-underline-offset:4px}
.sec.dark .btn.link{color:var(--ink-accent)}
.btnrow{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:30px}
.center .btnrow{justify-content:center}
.arrow{transition:transform .22s var(--ease)}
a:hover .arrow{transform:translateX(3px)}

/* ---------- hero ---------- */
.hero{padding-top:calc(var(--nav-h) + clamp(56px,9vw,110px));padding-bottom:0;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-30% -20% auto -20%;height:120%;pointer-events:none;
  background:radial-gradient(60% 48% at 50% 8%,rgba(50,174,116,.13),transparent 70%);
}
.hero .wrap{position:relative}
.hero h1{max-width:100%;margin-inline:auto}
.hero .lede{margin-top:22px;font-size:clamp(18px,2.1vw,24px);max-width:56ch}
.hero.dark::before{background:radial-gradient(60% 48% at 50% 6%,rgba(74,222,128,.14),transparent 70%)}
.herostage{margin-top:clamp(44px,6vw,78px);padding-bottom:clamp(48px,7vw,96px)}

/* page hero, feature pages */
.phero{padding-top:calc(var(--nav-h) + clamp(48px,7vw,86px));padding-bottom:clamp(34px,5vw,56px);position:relative}
.phero .crumb{font-size:12.5px;color:var(--muted);margin-bottom:18px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.phero .crumb a:hover{color:var(--ink)}
.phero h1{font-size:clamp(36px,5.4vw,68px);max-width:17ch}
.phero .lede{margin-top:20px}
.pherogrid{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(28px,5vw,64px);align-items:center}

/* ---------- device frames ---------- */
.stage{position:relative;display:flex;justify-content:center;align-items:flex-end}

/* browser window */
.browser{
  width:100%;border-radius:16px;overflow:hidden;background:var(--white);
  border:1px solid var(--border);box-shadow:var(--shadow-lg);
}
.browser .chrome{
  height:38px;background:linear-gradient(180deg,#fdfaf5,#f6efe4);border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:8px;padding:0 14px;
}
.browser .dot{width:10px;height:10px;border-radius:50%;flex:none}
.browser .dot.r{background:#f0837a}.browser .dot.y{background:#f2c14e}.browser .dot.g{background:#66c98a}
.browser .url{
  margin-left:12px;flex:1;height:22px;border-radius:999px;background:var(--paper);
  border:1px solid var(--border);display:flex;align-items:center;padding:0 11px;
  font-size:10.5px;color:var(--muted);letter-spacing:.01em;max-width:340px;
}
.browser .screen{display:block;width:100%;background:var(--canvas)}

/* macbook */
.mac{width:100%;max-width:1060px;margin:0 auto;filter:drop-shadow(0 34px 60px rgba(42,33,26,.22))}
.mac .lid{
  background:linear-gradient(170deg,#33302c,#1b1917);border-radius:20px 20px 5px 5px;
  padding:12px 12px 14px;position:relative;
}
.mac .lid::after{
  content:"";position:absolute;top:5px;left:50%;transform:translateX(-50%);
  width:74px;height:4px;border-radius:0 0 6px 6px;background:#111;
}
.mac .glass{border-radius:11px;overflow:hidden;background:#000;position:relative}
.mac .glass img,.mac .glass video{display:block;width:100%;height:auto}
.mac .base{
  height:13px;background:linear-gradient(180deg,#d5d1cb,#a29c94);
  border-radius:0 0 11px 11px;margin:0 auto;width:117%;max-width:none;
  transform:translateX(-7.3%);position:relative;
}
.mac .base::after{
  content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:16%;height:6px;border-radius:0 0 8px 8px;background:#8f8981;
}

/* phone */
.phone{
  width:246px;flex:none;border-radius:44px;padding:9px;position:relative;
  background:linear-gradient(150deg,#3a3733,#181614);
  box-shadow:0 28px 60px rgba(23,19,15,.34),inset 0 0 0 1.5px rgba(255,255,255,.10);
}
.phone .pscreen{
  border-radius:36px;overflow:hidden;background:var(--canvas);position:relative;
  aspect-ratio:9/19.5;
}
.phone .island{
  position:absolute;top:9px;left:50%;transform:translateX(-50%);
  width:76px;height:21px;border-radius:999px;background:#0b0a09;z-index:5;
}
.phone.sm{width:192px;border-radius:36px;padding:7px}
.phone.sm .pscreen{border-radius:30px}
.phone.sm .island{width:60px;height:17px;top:7px}

/* in-situ photographic scene */
.scene{
  position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--shadow-lg);
  background:var(--ink);
}
.scene img.plate{display:block;width:100%;height:100%;object-fit:cover}
.scene.tall img.plate{aspect-ratio:3/4}
.scene.wide img.plate{aspect-ratio:16/10}
.scene .cap{
  position:absolute;left:0;right:0;bottom:0;padding:56px 22px 20px;
  background:linear-gradient(transparent,rgba(15,12,10,.86));color:#fff;
}
.scene .cap .k{font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;opacity:.72;font-weight:700}
.scene .cap .v{font-size:17px;font-weight:650;letter-spacing:-.015em;margin-top:5px;color:#fff}
.scene .float{
  position:absolute;right:12px;top:12px;z-index:4;max-width:calc(100% - 24px);
  background:rgba(255,255,255,.93);backdrop-filter:blur(12px);
  border-radius:14px;padding:11px 13px;box-shadow:var(--shadow-md);
}
.scene .float .t{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700}
.scene .float .m{font-size:14.5px;font-weight:650;color:var(--ink);margin-top:3px;letter-spacing:-.01em;line-height:1.25}

/* plain media frame */
.frame{position:relative;border-radius:18px;overflow:hidden;background:var(--white);
  border:1px solid var(--border);box-shadow:var(--shadow-lg)}
.sec.dark .frame{background:var(--ink-800);border-color:var(--ink-600)}
.frame video,.frame img{display:block;width:100%;height:auto}

/* video badge */
.vbadge{
  position:absolute;top:14px;right:14px;z-index:6;
  background:rgba(23,19,15,.74);backdrop-filter:blur(8px);color:#fff;border-radius:999px;
  padding:5px 11px;font-size:9.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  display:flex;align-items:center;gap:6px;
}
.vbadge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-lift);animation:pulse 2.1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}

/* ---------- grids and cards ---------- */
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px);align-items:center}
.split.wide{grid-template-columns:1.12fr .88fr}
.split.narrowr{grid-template-columns:.88fr 1.12fr}
.split.top{align-items:start}

.card{
  background:var(--white);border:1px solid var(--border);border-radius:18px;
  padding:26px 26px 24px;display:flex;flex-direction:column;gap:10px;
  box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card.hov:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.card .body{font-size:15px}
.card.tint{background:var(--paper);box-shadow:none}
.sec.dark .card{background:var(--ink-800);border-color:var(--ink-600);box-shadow:none}
.sec.dark .card h3,.sec.dark .card h4{color:var(--ink-fg)}
.sec.dark .card .body{color:var(--ink-muted)}

.card.t-green{background:var(--st-green-bg);border-color:#bbdfcc;box-shadow:none}
.card.t-green h4,.card.t-green h3{color:var(--st-green-fg)}
.card.t-blue{background:var(--st-blue-bg);border-color:#b8d5f0;box-shadow:none}
.card.t-blue h4,.card.t-blue h3{color:var(--st-blue-fg)}
.card.t-purple{background:var(--st-purple-bg);border-color:#d0c2ea;box-shadow:none}
.card.t-purple h4,.card.t-purple h3{color:var(--st-purple-fg)}
.card.t-gold{background:var(--st-gold-bg);border-color:#eeda99;box-shadow:none}
.card.t-gold h4,.card.t-gold h3{color:var(--st-gold-fg)}
.card.t-amber{background:var(--st-amber-bg);border-color:#f0d2ae;box-shadow:none}
.card.t-amber h4,.card.t-amber h3{color:var(--st-amber-fg)}
.card.t-red{background:var(--st-red-bg);border-color:#eec6c1;box-shadow:none}
.card.t-red h4,.card.t-red h3{color:var(--st-red-fg)}
.card[class*="t-"] .body{color:var(--ink-body);opacity:.82}
.card.solid{
  background:linear-gradient(158deg,#3cba81,#279463);border-color:#22855a;color:#fff;
  box-shadow:0 10px 30px rgba(39,148,99,.24);
}
.card.solid h3,.card.solid h4{color:#fff}
.card.solid .body{color:rgba(255,255,255,.9)}

.ico{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;flex:none;
  background:var(--paper);margin-bottom:4px;
}
.ico svg{width:21px;height:21px;stroke:var(--ink);stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.ico.g{background:var(--st-green-bg)} .ico.g svg{stroke:var(--st-green-fg)}
.ico.b{background:var(--st-blue-bg)}  .ico.b svg{stroke:var(--st-blue-fg)}
.ico.p{background:var(--st-purple-bg)}.ico.p svg{stroke:var(--st-purple-fg)}
.ico.o{background:var(--st-gold-bg)}  .ico.o svg{stroke:var(--st-gold-fg)}
.ico.a{background:var(--st-amber-bg)} .ico.a svg{stroke:var(--st-amber-fg)}
.ico.r{background:var(--st-red-bg)}   .ico.r svg{stroke:var(--st-red-fg)}
.sec.dark .ico{background:var(--ink-700)}
.sec.dark .ico svg{stroke:var(--ink-fg)}

/* module tiles on the homepage */
.tile{
  position:relative;display:flex;flex-direction:column;gap:9px;
  background:var(--white);border:1px solid var(--border);border-radius:18px;padding:24px 24px 22px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s;
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#dfd0ba}
.tile h4{font-size:19px}
.tile .body{font-size:14.5px}
.tile .go{
  margin-top:auto;padding-top:14px;font-size:13.5px;font-weight:650;color:var(--accent-deep);
  display:flex;align-items:center;gap:6px;
}
.tile:hover .go .arrow{transform:translateX(4px)}

/* ---------- badges ---------- */
.tag{
  display:inline-flex;align-items:center;gap:5px;align-self:flex-start;width:max-content;
  padding:4px 10px;border-radius:999px;font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
}
.tag.live{background:var(--st-green-bg);color:var(--st-green-fg)}
.tag.spec{background:var(--st-gold-bg);color:var(--st-gold-fg)}
.tag.next{background:var(--st-blue-bg);color:var(--st-blue-fg)}
.tag.live::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent)}
.pill{
  display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:999px;
  background:var(--white);border:1px solid var(--border);font-size:13.5px;font-weight:600;color:var(--ink);
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}
.sec.dark .pill{background:var(--ink-800);border-color:var(--ink-600);color:var(--ink-fg)}
.pillrow{display:flex;flex-wrap:wrap;gap:9px}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(18px,3vw,40px)}
.stat .n{
  font-size:clamp(38px,5vw,62px);font-weight:700;letter-spacing:-.045em;line-height:1;
  color:var(--ink);font-variant-numeric:tabular-nums;
}
.sec.dark .stat .n{color:var(--ink-fg)}
.stat .n em{font-style:normal;color:var(--accent)}
.stat .l{font-size:14px;color:var(--muted);line-height:1.42;margin-top:10px;max-width:24ch}

/* ---------- feature rows ---------- */
.frow{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,80px);align-items:center;padding:clamp(40px,6vw,78px) 0}
.frow+.frow{border-top:1px solid var(--border)}
.sec.dark .frow+.frow{border-top-color:var(--ink-600)}
.frow.flip .fmedia{order:-1}
.fmedia{position:relative}

/* ---------- expandable detail ---------- */
.detail{
  border:1px solid var(--border);border-radius:16px;background:var(--white);
  overflow:hidden;transition:border-color .25s,box-shadow .25s;
}
.detail+.detail{margin-top:10px}
.detail[open]{box-shadow:var(--shadow-sm);border-color:#dfd0ba}
.detail summary{
  list-style:none;cursor:pointer;padding:19px 22px;display:flex;align-items:center;gap:16px;
  font-size:17px;font-weight:650;color:var(--ink);letter-spacing:-.015em;
}
.detail summary::-webkit-details-marker{display:none}
.detail summary:hover{background:rgba(42,33,26,.02)}
.detail summary .plus{
  margin-left:auto;flex:none;width:26px;height:26px;border-radius:50%;background:var(--paper);
  display:grid;place-items:center;position:relative;transition:background .25s,transform .32s var(--ease);
}
.detail summary .plus::before,.detail summary .plus::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;transition:opacity .25s;
}
.detail summary .plus::before{width:11px;height:1.6px}
.detail summary .plus::after{width:1.6px;height:11px}
.detail[open] summary .plus{background:var(--accent);transform:rotate(180deg)}
.detail[open] summary .plus::before{background:#fff}
.detail[open] summary .plus::after{opacity:0}
.detail .inner{padding:0 22px 24px;max-width:none}
.detail .inner>*+*{margin-top:14px}
.detail .num{
  flex:none;font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.06em;
  width:26px;
}
.sec.dark .detail{background:var(--ink-800);border-color:var(--ink-600)}
.sec.dark .detail summary{color:var(--ink-fg)}
.sec.dark .detail summary .plus{background:var(--ink-700)}
.sec.dark .detail summary .plus::before,.sec.dark .detail summary .plus::after{background:var(--ink-fg)}

/* checklist */
.checks{display:grid;gap:11px}
.checks.two{grid-template-columns:1fr 1fr;gap:11px 26px}
.checks li{list-style:none;display:flex;gap:11px;font-size:15px;line-height:1.5;color:var(--muted)}
.checks li::before{
  content:"";flex:none;width:18px;height:18px;border-radius:50%;margin-top:2px;
  background:var(--st-green-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23276a48' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat;
}
.checks li strong{color:var(--ink)}
.sec.dark .checks li strong{color:var(--ink-fg)}

/* key/value list */
.kv{display:flex;gap:18px;padding:15px 0;border-bottom:1px solid var(--border);align-items:flex-start}
.kv:last-child{border-bottom:none}
.kv .k{font-size:14.5px;font-weight:680;color:var(--ink);width:180px;flex:none;line-height:1.4}
.kv .v{font-size:14.5px;color:var(--muted);line-height:1.55}
.sec.dark .kv{border-color:var(--ink-600)}
.sec.dark .kv .k{color:var(--ink-fg)}

/* quote */
.quote{font-size:clamp(23px,3.1vw,40px);line-height:1.22;letter-spacing:-.03em;color:var(--ink);font-weight:650;max-width:22ch}
.sec.dark .quote{color:var(--ink-fg)}

/* strip of logos / labels */
.strip{display:flex;flex-wrap:wrap;gap:10px 12px;align-items:center}
.strip .item{
  font-size:13px;font-weight:600;color:var(--muted);padding:7px 13px;border-radius:9px;
  background:var(--white);border:1px solid var(--border);
}
.sec.dark .strip .item{background:var(--ink-800);border-color:var(--ink-600);color:var(--ink-muted)}

/* google lockup */
.glock{display:flex;align-items:baseline;gap:11px;flex-wrap:wrap}
.gword{font-size:clamp(28px,4vw,44px);font-weight:600;letter-spacing:-.03em;line-height:1}
.gword .b{color:#4285F4}.gword .r{color:#EA4335}.gword .y{color:#FBBC05}.gword .g{color:#34A853}
.gsub{font-size:clamp(17px,2.2vw,24px);color:#5f6368;font-weight:400;letter-spacing:-.015em}
.sec.dark .gsub{color:#b3aca3}

/* ---------- CTA band ---------- */
.ctaband{
  background:linear-gradient(158deg,#3cba81,#22855a);color:#fff;border-radius:28px;
  padding:clamp(38px,6vw,72px);text-align:center;box-shadow:0 24px 60px rgba(34,133,90,.26);
}
.ctaband h2{color:#fff;max-width:18ch;margin:0 auto}
.ctaband p{color:rgba(255,255,255,.86);max-width:52ch;margin:16px auto 0;font-size:17px}
.ctaband .btn.primary{background:#fff;color:var(--accent-deep);box-shadow:0 8px 22px rgba(0,0,0,.14)}
.ctaband .btn.primary:hover{background:#f2fff8}
.ctaband .btn.ghost{border-color:rgba(255,255,255,.5);background:transparent;color:#fff}
.ctaband .btn.ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ---------- next/prev module nav ---------- */
.modnav{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.modnav a{
  border:1px solid var(--border);border-radius:16px;padding:20px 22px;background:var(--white);
  display:flex;flex-direction:column;gap:6px;transition:transform .3s var(--ease),box-shadow .3s;
}
.modnav a:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.modnav .k{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:700}
.modnav .t{font-size:17px;font-weight:650;color:var(--ink);letter-spacing:-.018em}

/* ---------- form ---------- */
.form{display:grid;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13px;font-weight:650;color:var(--ink);letter-spacing:-.005em}
.field input,.field select,.field textarea{
  font:inherit;font-size:15.5px;color:var(--ink);background:var(--white);
  border:1px solid var(--border);border-radius:12px;padding:13px 15px;width:100%;
  transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:118px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(50,174,116,.15);
}
.field .hint{font-size:12.5px;color:var(--muted)}
.form .two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}

/* ---------- footer ---------- */
.foot{background:var(--ink);color:var(--ink-muted);padding:clamp(52px,7vw,84px) 0 34px;font-size:14px}
.foot a{color:var(--ink-muted);transition:color .2s}
.foot .brandcol a{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.foot a:hover{color:var(--ink-fg)}
.footgrid{display:grid;grid-template-columns:1.7fr repeat(4,1fr);gap:clamp(22px,3.4vw,44px)}
.foot h6{font-size:10.5px;letter-spacing:.17em;text-transform:uppercase;color:#6f6558;font-weight:700;margin-bottom:14px}
.foot ul{list-style:none;display:grid;gap:9px}
.foot .brandcol svg{height:22px;fill:#fff;margin-bottom:16px}
.foot .brandcol p{color:var(--ink-muted);font-size:14px;max-width:32ch;line-height:1.6}
.footbar{
  margin-top:clamp(38px,5vw,58px);padding-top:22px;border-top:1px solid var(--ink-700);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12.5px;color:#6f6558;
}

/* ---------- reveal ----------
   Content is visible by default. It is only hidden for the animation once an
   inline script has confirmed JavaScript is actually running, so a blocked or
   missing script can never leave a section invisible. ---------- */
.js .rv{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .rv.in{opacity:1;transform:none}
.js .rv.d1{transition-delay:.07s}.js .rv.d2{transition-delay:.14s}.js .rv.d3{transition-delay:.21s}
.js .rv.d4{transition-delay:.28s}.js .rv.d5{transition-delay:.35s}.js .rv.d6{transition-delay:.42s}
@media (prefers-reduced-motion:reduce){
  .js .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .navlinks{display:none}
  .nav .cta{display:none}
  .burger{display:flex}
  .g4{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:30px}
}
@media (max-width:860px){
  .split,.split.wide,.split.narrowr,.pherogrid{grid-template-columns:1fr;gap:34px}
  .frow{grid-template-columns:1fr;gap:28px;padding:38px 0}
  .frow.flip .fmedia{order:0}
  .g3{grid-template-columns:repeat(2,1fr)}
  .modnav{grid-template-columns:1fr}
  .checks.two{grid-template-columns:1fr}
  .footgrid{grid-template-columns:1fr 1fr;gap:32px}
  .footgrid .brandcol{grid-column:1 / -1}
  .kv{flex-direction:column;gap:5px}
  .kv .k{width:auto}
  .form .two{grid-template-columns:1fr}
  .lede{max-width:none}
}
@media (max-width:600px){
  body{font-size:16px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:26px}
  .stat .l{max-width:none}
  .footgrid{grid-template-columns:1fr}
  .phone{width:210px}
  .btnrow .btn{flex:1 1 100%}
  .ctaband{border-radius:20px}
  .detail summary{padding:16px 17px;font-size:15.5px;gap:11px}
  .detail .inner{padding:0 17px 20px}
  .detail .num{display:none}
  .mac .base{width:110%;transform:translateX(-4.6%);height:10px}
  .mac .lid{padding:8px 8px 10px;border-radius:15px 15px 4px 4px}
  .mac .glass{border-radius:8px}
}

/* ==========================================================================
   Workflow infographics
   ========================================================================== */
.info{
  background:var(--white);border:1px solid var(--border);border-radius:22px;
  padding:clamp(22px,3vw,36px);box-shadow:var(--shadow-md);
  display:flex;flex-direction:column;gap:0;
}
.info .ihead{display:flex;gap:16px;align-items:flex-start;justify-content:space-between;margin-bottom:clamp(22px,3vw,32px)}
.info .ihead h3{font-size:clamp(20px,2.1vw,27px)}
.info .ihead .body{font-size:14.5px;margin-top:8px;max-width:50ch}
.stamp{
  flex:none;display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:999px;
  background:var(--st-green-bg);color:var(--st-green-fg);font-size:12px;font-weight:700;
  letter-spacing:.02em;white-space:nowrap;font-variant-numeric:tabular-nums;
}
.stamp.gold{background:var(--st-gold-bg);color:var(--st-gold-fg)}
.stamp.purple{background:var(--st-purple-bg);color:var(--st-purple-fg)}
.stamp::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.6}
.iout{
  margin-top:auto;padding-top:20px;
  display:flex;gap:14px;align-items:center;flex-wrap:wrap;
}
.iout .lab{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:700}
.iout .val{font-size:15px;font-weight:650;color:var(--ink);letter-spacing:-.012em}
.iout .rule2{flex:1;height:1px;background:var(--border);min-width:20px}

/* step chain */
.chain{display:grid;gap:22px 18px;position:relative}
.chain .cn{position:relative;padding-top:32px}
.chain .cn::before{
  content:"";position:absolute;left:7px;right:-18px;top:6px;height:2px;
  background:linear-gradient(90deg,rgba(50,174,116,.85),rgba(50,174,116,.22));
}
.chain .cn:last-child::before{display:none}
.chain .cn .dot{
  position:absolute;top:0;left:0;width:14px;height:14px;border-radius:50%;
  background:var(--white);border:3px solid var(--accent);
}
.chain .cn .dot.end{background:var(--accent)}
.chain .cn .k{font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:800}
.chain .cn .t{font-size:14.5px;font-weight:680;color:var(--ink);margin-top:6px;line-height:1.22;letter-spacing:-.012em}
.chain .cn .d{font-size:12.5px;color:var(--muted);margin-top:6px;line-height:1.45}
.chain .pulse{
  position:absolute;top:2.5px;left:6px;width:9px;height:9px;border-radius:50%;
  background:var(--accent-lift);box-shadow:0 0 0 5px rgba(50,174,116,.14);
  animation:travel 4.6s cubic-bezier(.5,0,.5,1) infinite;
}
@keyframes travel{
  0%{left:6px;opacity:0}
  8%{opacity:1}
  88%{opacity:1}
  100%{left:calc(100% - 8px);opacity:0}
}
@media (prefers-reduced-motion:reduce){.chain .pulse{display:none}}

/* house bars */
.bars{display:grid;gap:13px}
.bar{display:grid;grid-template-columns:92px 1fr 46px;gap:13px;align-items:center}
.bar .nm{font-size:13px;font-weight:680;color:var(--ink);letter-spacing:-.01em}
.bar .track{display:block;width:100%;height:11px;border-radius:999px;background:var(--paper);overflow:hidden}
.bar .fill{display:block;height:100%;border-radius:999px;transform-origin:left}
.js .rv .bar .fill{transform:scaleX(0)}
.js .rv.in .bar .fill{transform:scaleX(1);transition:transform 1.15s var(--ease)}
.js .rv.in .bar:nth-child(1) .fill{transition-delay:.10s}
.js .rv.in .bar:nth-child(2) .fill{transition-delay:.20s}
.js .rv.in .bar:nth-child(3) .fill{transition-delay:.30s}
.js .rv.in .bar:nth-child(4) .fill{transition-delay:.40s}
.bar .pt{font-size:12.5px;font-weight:700;color:var(--ink);text-align:right;font-variant-numeric:tabular-nums}
.awards{display:grid;gap:8px;margin-bottom:22px}
.award{
  display:flex;align-items:center;gap:11px;background:var(--paper);border-radius:12px;padding:10px 13px;
}
.award .who{font-size:12.5px;font-weight:650;color:var(--ink);flex:1;line-height:1.3}
.award .amt{font-size:11px;font-weight:800;padding:3px 9px;border-radius:999px;white-space:nowrap}
.award .ago{font-size:10.5px;color:var(--muted);white-space:nowrap}

/* radar */
.radarwrap{display:flex;justify-content:center;margin:2px 0 20px}
.radar{width:100%;max-width:292px;height:auto;overflow:visible}
.radar .ring{fill:none;stroke:var(--border);stroke-width:1}
.radar .spoke{stroke:var(--border-soft);stroke-width:1}
.radar .area{fill:rgba(50,174,116,.20);stroke:var(--accent);stroke-width:2;stroke-linejoin:round}
.radar .pt{fill:var(--accent)}
.radar .lbl{font-size:8.6px;fill:var(--muted);font-weight:700;letter-spacing:.09em;text-transform:uppercase}
.strandrow{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px}
.strand{
  font-size:10.5px;font-weight:650;padding:4px 9px;border-radius:999px;
  background:var(--paper);color:var(--ink-body);white-space:nowrap;
}
.strand.on{background:var(--st-green-bg);color:var(--st-green-fg)}
.evrow{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--border-soft);font-size:12.5px}
.evrow:last-of-type{border-bottom:none}
.evrow .e{flex:1;color:var(--ink-body);line-height:1.35}
.evrow .st{font-size:10px;font-weight:800;padding:3px 9px;border-radius:999px;white-space:nowrap;letter-spacing:.06em;text-transform:uppercase}

@media (max-width:860px){
  .chain{grid-template-columns:1fr !important;gap:0}
  .chain .cn{padding-top:0;padding-left:30px;padding-bottom:20px}
  .chain .cn::before{left:6px;right:auto;top:14px;bottom:-6px;width:2px;height:auto;
    background:linear-gradient(180deg,rgba(50,174,116,.85),rgba(50,174,116,.22))}
  .chain .cn:last-child{padding-bottom:0}
  .chain .pulse{display:none}
  .bar{grid-template-columns:80px 1fr 42px;gap:10px}
}

/* infographic cards keep their light treatment on dark sections */
.sec.dark .info{background:var(--white);border-color:var(--border);box-shadow:0 24px 60px rgba(0,0,0,.34)}
.sec.dark .info h3,.sec.dark .info h4{color:var(--ink)}
.sec.dark .info p,.sec.dark .info .body{color:var(--muted)}
.sec.dark .info strong{color:var(--ink)}
.sec.dark .info .evrow .e{color:var(--ink-body)}

/* ==========================================================================
   Brand sting: title card, then the mark, then the page
   ========================================================================== */
#sting{
  position:fixed;inset:0;z-index:400;display:none;place-items:center;
  background:var(--canvas);transition:opacity .62s ease;
}
#sting.on{display:grid}
#sting.out{opacity:0;pointer-events:none}
#sting .stwrap{
  width:min(780px,86vw);display:flex;flex-direction:column;align-items:center;
  gap:clamp(22px,3.2vw,38px);text-align:center;
}
#sting .stitle{
  margin:0;text-align:center;max-width:16ch;
  font-size:clamp(26px,4.6vw,54px);font-weight:700;letter-spacing:-.035em;line-height:1.06;
  color:var(--ink);text-wrap:balance;
  opacity:0;transform:translateY(15px);
  transition:opacity .85s var(--ease),transform .85s var(--ease),filter .6s ease;
}
#sting .stitle.in{opacity:1;transform:none}
#sting .stitle.out{opacity:0;transform:translateY(-9px);filter:blur(5px)}
#sting .stmark{
  width:min(206px,40vw);
  opacity:0;transform:scale(.97);
  transition:opacity .5s ease,transform .7s var(--ease);
}
#sting .stmark.in{opacity:1;transform:none}
#sting .stmark.fallback{background:url("../img/cursus-logo.svg") center/contain no-repeat;aspect-ratio:350.8/80.1}
#sting .skiphint{
  position:fixed;left:50%;bottom:30px;transform:translateX(-50%);
  font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
  opacity:0;transition:opacity .6s ease;pointer-events:none;
}
#sting.hint .skiphint{opacity:.62}
body.stinglock{overflow:hidden}
@media (prefers-reduced-motion:reduce){#sting{display:none !important}}