/* FutureProof Courses · shared surface styles
   Tokens from system/fp-design-language.md, reference: fp-intelligence/ecosystem/index.html
   Sister surface: fp-intelligence/apps (same base, extended with course-room components) */
:root{
  --bg:#0c0b09; --bg2:#100e0b;
  --panel:rgba(28,24,19,.58); --panel2:rgba(36,31,24,.72);
  --glass-bd:rgba(214,180,130,.14); --glass-bd2:rgba(214,180,130,.22);
  --ink:#efe6d6; --ink2:#b7ab98; --ink3:#7d7263;
  --copper:#cf9552; --copper-2:#e0ab68; --amber:#d98b4a;
  --teal:#5ea394; --cyan:#46b4e0; --sage:#8fa877;
  --line:rgba(214,180,130,.1); --linesoft:rgba(214,180,130,.055);
  --shadow:0 24px 60px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,240,214,.05);
  --disp:'Fraunces',Georgia,serif; --sans:'Hanken Grotesk',-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink2);background:var(--bg);line-height:1.6;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;min-height:100vh}
a{color:inherit;text-decoration:none}
::selection{background:rgba(207,149,82,.3);color:var(--ink)}

/* ambient world */
.amb{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.amb .rad{position:absolute;inset:0;animation:radBreathe 19s ease-in-out infinite;
  background:
    radial-gradient(900px 620px at 78% -6%, rgba(207,149,82,.15), transparent 60%),
    radial-gradient(760px 640px at 6% 108%, rgba(94,163,148,.08), transparent 62%),
    radial-gradient(1200px 900px at 50% 50%, rgba(20,17,13,0), rgba(8,7,6,.6) 82%)}
.amb svg{position:absolute;top:-10%;left:calc(50% - 550px);width:1100px;height:1100px;opacity:.42;animation:irisSpin 260s linear infinite}
#fibers{transform-origin:550px 520px;animation:irisBreathe 19s ease-in-out infinite}
@keyframes irisSpin{to{transform:rotate(360deg)}}
@keyframes irisBreathe{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.09);opacity:.78}}
@keyframes radBreathe{0%,100%{opacity:1}50%{opacity:.82}}
.amb .grain{position:absolute;inset:0;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>")}
@media (prefers-reduced-motion:reduce){.amb svg,#fibers,.amb .rad{animation:none}}

.page{position:relative;z-index:1}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px}

/* nav */
.topnav{position:fixed;top:0;left:0;right:0;z-index:50;transition:.3s;padding:18px 0}
.topnav.scrolled{background:rgba(12,11,9,.82);backdrop-filter:blur(16px);border-bottom:1px solid var(--linesoft);padding:12px 0}
.topnav .wrap{display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px}
.iris,.iris-s{border-radius:50%;flex:none;position:relative;
  filter:drop-shadow(0 0 10px rgba(207,149,82,.35))}
.iris svg,.iris-s svg{width:100%;height:100%;display:block;animation:irisSpin 42s linear infinite}
@media (prefers-reduced-motion:reduce){.iris svg,.iris-s svg{animation:none}}
.brand .iris{width:32px;height:32px}
.brand .bt{font-family:var(--disp);font-size:17px;color:var(--ink);font-weight:500;line-height:1.05}
.brand .bs{font-size:8.5px;letter-spacing:.32em;text-transform:uppercase;color:var(--copper);font-weight:600;margin-top:2px}
.navlinks{display:flex;align-items:center;gap:26px;margin-left:auto}
.navlinks a{font-size:13.5px;font-weight:500;color:var(--ink2);transition:.2s}
.navlinks a:hover{color:var(--ink)}
.navlinks a.btn{color:#181209}
.navlinks a.btn:hover{color:#181209}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--sans);font-size:14px;font-weight:600;
  color:#181209;background:linear-gradient(120deg,var(--copper-2),var(--copper));border:none;border-radius:100px;
  padding:12px 24px;cursor:pointer;transition:.25s;box-shadow:0 8px 26px rgba(207,149,82,.25), inset 0 1px 0 rgba(255,240,214,.5)}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 34px rgba(207,149,82,.35), inset 0 1px 0 rgba(255,240,214,.5)}
.btn.big{padding:16px 32px;font-size:15.5px}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--glass-bd2);box-shadow:none}
.btn.ghost:hover{border-color:rgba(214,180,130,.4);background:rgba(207,149,82,.06)}
.navlinks .btn{padding:10px 20px}

/* hero */
.hero{min-height:92vh;display:flex;align-items:center;padding:140px 0 80px;position:relative}
.hero .hc{max-width:780px}
.eyebrow{font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:var(--copper-2);font-weight:600;margin-bottom:18px}
.hero h1{font-family:var(--disp);font-size:clamp(44px,6.6vw,84px);color:#fff;font-weight:400;line-height:1.02;letter-spacing:-.015em}
.hero h1 em{font-style:italic;color:var(--copper-2)}
.hero .hp{font-size:18px;color:var(--ink2);margin:26px 0 38px;max-width:580px;font-weight:300;line-height:1.7}
.hero .cta{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.hero .quiet{font-size:13px;color:var(--ink3);margin-top:26px}

/* sections */
.sec{padding:96px 0;position:relative}
.sec.tint{background:linear-gradient(180deg,rgba(16,14,11,.4),rgba(10,9,7,.15));border-top:1px solid var(--linesoft);border-bottom:1px solid var(--linesoft)}
.sechead{max-width:660px;margin-bottom:52px}
.sechead.center{margin-left:auto;margin-right:auto;text-align:center}
.sechead h2{font-family:var(--disp);font-size:clamp(30px,3.6vw,44px);color:var(--ink);font-weight:400;line-height:1.12;letter-spacing:-.01em}
.sechead h2 em{font-style:italic;color:var(--copper-2)}
.sechead .lead{font-size:16.5px;color:var(--ink2);margin-top:16px;font-weight:300;line-height:1.7}

.panel{background:var(--panel);border:1px solid var(--glass-bd);border-radius:20px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.panel:before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(160deg,rgba(255,240,214,.045),transparent 38%)}

/* the shift timeline */
.shift{display:grid;grid-template-columns:1fr;gap:0;max-width:720px}
.shiftrow{display:grid;grid-template-columns:150px 1fr;gap:26px;padding:22px 0;border-bottom:1px solid var(--linesoft);align-items:baseline}
.shiftrow:last-child{border-bottom:none}
.shiftrow .when{font-family:var(--disp);font-size:19px;color:var(--copper-2);font-style:italic;white-space:nowrap}
.shiftrow .what{font-size:16px;color:var(--ink2);font-weight:300;line-height:1.65}
.shiftrow .what strong{color:var(--ink);font-weight:600}
.callout{font-family:var(--disp);font-style:italic;font-size:clamp(20px,2.4vw,26px);color:var(--ink);font-weight:400;
  line-height:1.5;max-width:680px;margin-top:48px;padding-left:26px;border-left:2px solid var(--copper)}

/* two paths */
.paths{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.path{padding:38px 36px}
.path .ph{display:flex;align-items:center;gap:13px;margin-bottom:26px}
.path .ph .pd{width:10px;height:10px;border-radius:50%;flex:none}
.path.loud .ph .pd{background:var(--ink3);box-shadow:0 0 12px rgba(125,114,99,.4)}
.path.fp .ph .pd{background:var(--copper-2);box-shadow:0 0 14px rgba(224,171,104,.55)}
.path .ph h3{font-family:var(--disp);font-size:21px;color:var(--ink);font-weight:500}
.path ul{list-style:none;display:flex;flex-direction:column;gap:16px}
.path li{font-size:15px;line-height:1.6;padding-left:22px;position:relative;font-weight:300}
.path li:before{content:"";position:absolute;left:0;top:10px;width:8px;height:1px;background:currentColor;opacity:.5}
.path.loud li{color:var(--ink3)}
.path.fp li{color:var(--ink)}
.path.fp{border-color:var(--glass-bd2);background:var(--panel2)}

/* living course grid */
.stdgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.std{padding:30px 28px;transition:.25s}
.std:hover{transform:translateY(-3px);border-color:var(--glass-bd2)}
.std .num{font-family:var(--disp);font-style:italic;font-size:15px;color:var(--copper);margin-bottom:14px}
.std h3{font-family:var(--disp);font-size:20px;color:var(--ink);font-weight:500;margin-bottom:10px;line-height:1.25}
.std p{font-size:14px;color:var(--ink2);font-weight:300;line-height:1.65}
.std p code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;color:var(--copper-2);background:rgba(207,149,82,.09);border:1px solid rgba(214,180,130,.14);border-radius:6px;padding:1px 6px}

/* demo band */
.demo{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:stretch}
.demopanel{padding:44px 42px;display:flex;flex-direction:column;background:var(--panel2);border-color:var(--glass-bd2)}
.demopanel .dk{font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--copper-2);font-weight:600;margin-bottom:16px}
.demopanel h3{font-family:var(--disp);font-size:clamp(26px,3vw,34px);color:var(--ink);font-weight:400;line-height:1.15;margin-bottom:16px}
.demopanel h3 em{font-style:italic;color:var(--copper-2)}
.demopanel p{font-size:15.5px;color:var(--ink2);font-weight:300;line-height:1.7;max-width:460px}
.demopanel .grow{flex:1}
.demopanel .cta{display:flex;gap:16px;flex-wrap:wrap;margin-top:30px}
.demopass{padding:34px 32px;display:flex;flex-direction:column;gap:0}
.demopass .dph{font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--ink3);font-weight:600;margin-bottom:18px}
.demopass .dprow{display:grid;grid-template-columns:34px 1fr;gap:16px;padding:13px 0;border-bottom:1px solid var(--linesoft);align-items:baseline}
.demopass .dprow:last-child{border-bottom:none}
.demopass .dpn{font-family:var(--disp);font-style:italic;font-size:17px;color:var(--copper)}
.demopass .dpt{font-family:var(--disp);font-size:16.5px;color:var(--ink);font-weight:500}
.demopass .dps{font-size:12.5px;color:var(--ink3);font-weight:300;margin-top:2px}

/* journey steps */
.journey{display:flex;flex-direction:column;gap:0;max-width:760px;margin:0 auto}
.step{display:grid;grid-template-columns:64px 1fr;gap:26px;padding:30px 0;border-bottom:1px solid var(--linesoft);position:relative}
.step:last-child{border-bottom:none}
.step .sn{font-family:var(--disp);font-style:italic;font-size:30px;color:var(--copper);line-height:1;padding-top:2px}
.step h3{font-family:var(--disp);font-size:21px;color:var(--ink);font-weight:500;margin-bottom:8px}
.step p{font-size:15px;color:var(--ink2);font-weight:300;line-height:1.7;max-width:560px}

/* ecosystem cards */
.ecogrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.eco{padding:28px 26px;transition:.25s;display:flex;flex-direction:column}
a.eco:hover{transform:translateY(-3px);border-color:var(--glass-bd2)}
.eco .ek{font-size:9.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--copper-2);font-weight:600;margin-bottom:12px}
.eco h3{font-family:var(--disp);font-size:19px;color:var(--ink);font-weight:500;margin-bottom:8px;line-height:1.25}
.eco p{font-size:13.5px;color:var(--ink2);font-weight:300;line-height:1.6;flex:1}
.eco .el{font-size:12.5px;color:var(--copper-2);font-weight:600;margin-top:16px}

/* manifesto band */
.mani{padding:110px 0;text-align:center}
.mani blockquote{font-family:var(--disp);font-style:italic;font-size:clamp(22px,3vw,32px);color:var(--ink);
  font-weight:400;line-height:1.5;max-width:740px;margin:0 auto 36px}
.mani blockquote em{color:var(--copper-2)}

/* footer */
footer{border-top:1px solid var(--linesoft);padding:44px 0 52px;position:relative;z-index:1}
footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer .fb{display:flex;align-items:center;gap:10px}
footer .fb .iris{width:22px;height:22px}
footer .ft{font-size:12.5px;color:var(--ink3)}
footer .flinks{display:flex;gap:22px}
footer .flinks a{font-size:12.5px;color:var(--ink3);transition:.2s}
footer .flinks a:hover{color:var(--ink2)}

/* reveal on scroll */
.rv{opacity:0;transform:translateY(18px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* ══════════════════ the course room ══════════════════ */
.room{position:relative;z-index:1;max-width:860px;margin:0 auto;padding:0 28px}

/* room top bar (quieter than site nav) */
.roomnav{position:fixed;top:0;left:0;right:0;z-index:50;padding:16px 0;transition:.3s}
.roomnav.scrolled{background:rgba(12,11,9,.85);backdrop-filter:blur(16px);border-bottom:1px solid var(--linesoft);padding:11px 0}
.roomnav .rwrap{max-width:860px;margin:0 auto;padding:0 28px;display:flex;align-items:center;gap:16px}
.roomnav .rback{font-size:12.5px;color:var(--ink3);transition:.2s}
.roomnav .rback:hover{color:var(--ink2)}
.roomnav .rtitle{margin-left:auto;display:flex;align-items:center;gap:10px}
.roomnav .rtitle .iris-s{width:20px;height:20px}
.roomnav .rtitle span{font-family:var(--disp);font-size:14px;color:var(--ink2)}

/* the intelligence line */
.intel{display:flex;align-items:flex-start;gap:13px;max-width:640px;margin:0 0 54px}
.intel .iris-s{width:22px;height:22px;margin-top:2px}
.intel p{font-family:var(--disp);font-style:italic;font-size:17.5px;color:var(--ink);line-height:1.55;font-weight:400}
@media (prefers-reduced-motion:reduce){.roomnav .rtitle .iris-s,.intel .iris-s{animation:none}}

/* course home */
.rhome{padding:150px 0 90px;min-height:88vh;display:flex;flex-direction:column;justify-content:center}
.rhome .greet{font-size:12px;letter-spacing:.26em;text-transform:uppercase;color:var(--copper-2);font-weight:600;margin-bottom:20px}
.rhome h1{font-family:var(--disp);font-size:clamp(38px,5.6vw,64px);color:#fff;font-weight:400;line-height:1.06;letter-spacing:-.012em;max-width:700px}
.rhome h1 em{font-style:italic;color:var(--copper-2)}
.rhome .rsub{font-size:16.5px;color:var(--ink2);font-weight:300;line-height:1.7;max-width:540px;margin:22px 0 50px}
.floor{height:1px;background:linear-gradient(90deg,transparent,var(--line) 18%,var(--line) 82%,transparent);margin:0 0 44px}

/* the passages (path) */
.passages{display:flex;flex-direction:column}
.passage{display:grid;grid-template-columns:56px 1fr auto;gap:22px;align-items:center;padding:24px 6px;border-bottom:1px solid var(--linesoft);transition:.25s;border-radius:12px}
.passage:hover{background:rgba(207,149,82,.045);border-bottom-color:var(--line)}
.passage .pn{font-family:var(--disp);font-style:italic;font-size:26px;color:var(--copper);line-height:1;text-align:center}
.passage .pt{font-family:var(--disp);font-size:20px;color:var(--ink);font-weight:500;line-height:1.25}
.passage .ps{font-size:13.5px;color:var(--ink3);font-weight:300;margin-top:3px}
.passage .pm{font-size:11.5px;color:var(--ink3);white-space:nowrap;letter-spacing:.06em}
.passage.dim .pt{color:var(--ink2)}

/* lesson view */
.lesson{padding:140px 0 80px;display:none}
.lesson.on{display:block}
.rhome.off{display:none}
.lesson .lk{font-size:10.5px;letter-spacing:.26em;text-transform:uppercase;color:var(--copper-2);font-weight:600;margin-bottom:16px}
.lesson h1{font-family:var(--disp);font-size:clamp(32px,4.6vw,50px);color:#fff;font-weight:400;line-height:1.1;letter-spacing:-.01em;margin-bottom:26px;max-width:680px}
.lesson h1 em{font-style:italic;color:var(--copper-2)}
.lesson .llead{font-family:var(--disp);font-size:20px;color:var(--ink);font-weight:400;line-height:1.6;max-width:640px;margin-bottom:44px;font-style:italic}
.lesson h2{font-family:var(--disp);font-size:25px;color:var(--ink);font-weight:500;margin:52px 0 16px;line-height:1.25}
.lesson p{font-size:16px;color:var(--ink2);font-weight:300;line-height:1.85;margin-bottom:19px;max-width:660px}
.lesson p strong{color:var(--ink);font-weight:600}
.lesson .lq{font-family:var(--disp);font-style:italic;font-size:20px;color:var(--ink);line-height:1.55;
  padding-left:24px;border-left:2px solid var(--copper);margin:36px 0;max-width:600px}

/* practice block */
.practice{background:var(--panel);border:1px solid var(--glass-bd);border-radius:18px;box-shadow:var(--shadow);
  padding:30px 32px;margin:40px 0;max-width:660px;position:relative;overflow:hidden}
.practice:before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(160deg,rgba(255,240,214,.04),transparent 40%)}
.practice .ph2{font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--teal);font-weight:600;margin-bottom:12px}
.practice p{font-size:15px;margin-bottom:10px}
.practice p:last-child{margin-bottom:0}

/* future proof callout */
.fpnote{background:linear-gradient(140deg,rgba(207,149,82,.1),rgba(207,149,82,.03));border:1px solid var(--glass-bd2);
  border-radius:18px;padding:28px 32px;margin:44px 0;max-width:660px}
.fpnote .fh{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.fpnote .fh .iris-s{width:18px;height:18px}
.fpnote .fh span{font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--copper-2);font-weight:600}
.fpnote p{font-size:15px;color:var(--ink);font-weight:300;line-height:1.75;margin:0;max-width:none}

/* takeaways */
.takes{margin:44px 0;max-width:660px}
.takes .th{font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--ink3);font-weight:600;margin-bottom:18px}
.takes ul{list-style:none;display:flex;flex-direction:column;gap:13px}
.takes li{font-size:15.5px;color:var(--ink);font-weight:300;line-height:1.6;padding-left:24px;position:relative}
.takes li:before{content:"";position:absolute;left:2px;top:10px;width:10px;height:5px;border-left:1.5px solid var(--copper-2);border-bottom:1.5px solid var(--copper-2);transform:rotate(-45deg)}

/* path rail */
.rail{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:60px;padding-top:36px;border-top:1px solid var(--linesoft)}
.rail a{padding:22px 24px;border:1px solid var(--glass-bd);border-radius:16px;transition:.25s;background:rgba(20,17,13,.35)}
.rail a:hover{border-color:var(--glass-bd2);background:rgba(24,20,15,.5);transform:translateY(-2px)}
.rail .rd{font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink3);font-weight:600;margin-bottom:7px}
.rail .rt{font-family:var(--disp);font-size:16.5px;color:var(--ink);font-weight:500;line-height:1.3}
.rail a.next{text-align:right;border-color:var(--glass-bd2)}
.rail a.next .rd{color:var(--copper-2)}
.rail a.only{grid-column:2}

/* companions inside the room */
.comps{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:44px 0;max-width:660px}
.comp{padding:24px 26px;border:1px solid var(--glass-bd);border-radius:16px;background:rgba(20,17,13,.4);transition:.25s;display:block}
a.comp:hover{border-color:var(--glass-bd2);transform:translateY(-2px)}
.comp .ck{font-size:9.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--teal);font-weight:600;margin-bottom:10px}
.comp h4{font-family:var(--disp);font-size:17.5px;color:var(--ink);font-weight:500;margin-bottom:6px}
.comp p{font-size:13px;color:var(--ink2);font-weight:300;line-height:1.6;margin:0;max-width:none}

/* open format strip (room footer) */
.openfmt{margin:80px 0 60px;padding:30px 32px;border:1px dashed rgba(214,180,130,.2);border-radius:18px;background:rgba(16,14,11,.4)}
.openfmt .oh{font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--copper-2);font-weight:600;margin-bottom:12px}
.openfmt p{font-size:14px;color:var(--ink2);font-weight:300;line-height:1.7;margin-bottom:14px;max-width:none}
.openfmt .olinks{display:flex;gap:18px;flex-wrap:wrap}
.openfmt .olinks a{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;color:var(--copper-2);
  border:1px solid rgba(214,180,130,.18);border-radius:8px;padding:7px 13px;transition:.2s;background:rgba(207,149,82,.06)}
.openfmt .olinks a:hover{border-color:rgba(214,180,130,.36);color:var(--ink)}

@media (max-width:900px){
  .paths,.demo,.comps,.member{grid-template-columns:1fr}
  .stdgrid,.ecogrid{grid-template-columns:1fr 1fr}
  .navlinks a.nl{display:none}
  .shiftrow{grid-template-columns:1fr;gap:4px}
  .passage{grid-template-columns:44px 1fr}
  .passage .pm{display:none}
}
@media (max-width:600px){
  .stdgrid,.ecogrid,.rail{grid-template-columns:1fr}
  .rail a.next{text-align:left}
  .rail a.only{grid-column:1}
  .hero{padding-top:120px}
  .sec{padding:70px 0}
}

/* ══════════════════ veils: the room wears the teacher's colors ══════════════════ */
html[data-veil="sage"]{
  --bg:#0a0d09; --bg2:#0d110c;
  --panel:rgba(22,27,19,.58); --panel2:rgba(28,34,24,.72);
  --glass-bd:rgba(163,193,137,.14); --glass-bd2:rgba(163,193,137,.24);
  --ink:#e9efdf; --ink2:#a9b49a; --ink3:#6e7a63;
  --copper:#7fa068; --copper-2:#9cbb82; --amber:#8fa877;
  --line:rgba(163,193,137,.1); --linesoft:rgba(163,193,137,.055);
}
html[data-veil="sage"] .amb .rad{background:
  radial-gradient(900px 620px at 78% -6%, rgba(143,168,119,.14), transparent 60%),
  radial-gradient(760px 640px at 6% 108%, rgba(94,163,148,.08), transparent 62%),
  radial-gradient(1200px 900px at 50% 50%, rgba(14,17,12,0), rgba(6,8,5,.6) 82%)}
html[data-veil="sage"] .btn{color:#101408}
html[data-veil="dusk"]{
  --bg:#100b0c; --bg2:#150e0f;
  --panel:rgba(31,22,22,.58); --panel2:rgba(39,27,27,.72);
  --glass-bd:rgba(214,150,136,.14); --glass-bd2:rgba(214,150,136,.24);
  --ink:#f1e3dd; --ink2:#bba49c; --ink3:#826d66;
  --copper:#c98a76; --copper-2:#e0a48f; --amber:#d98b6a;
  --line:rgba(214,150,136,.1); --linesoft:rgba(214,150,136,.055);
}
html[data-veil="dusk"] .amb .rad{background:
  radial-gradient(900px 620px at 78% -6%, rgba(207,134,114,.14), transparent 60%),
  radial-gradient(760px 640px at 6% 108%, rgba(94,163,148,.07), transparent 62%),
  radial-gradient(1200px 900px at 50% 50%, rgba(20,13,13,0), rgba(8,5,5,.6) 82%)}
html[data-veil="dusk"] .btn{color:#1a0f0b}
html{transition:background .6s}
body{transition:background .6s,color .6s}

/* veil control (quiet, on the course home) */
.veils{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 0 46px}
.veils .vl{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink3);font-weight:600}
.veils button{width:26px;height:26px;border-radius:50%;border:1px solid rgba(255,255,255,.14);cursor:pointer;
  transition:.25s;padding:0;position:relative;background:transparent}
.veils button span{position:absolute;inset:4px;border-radius:50%}
.veils button[data-v="fp"] span{background:linear-gradient(130deg,#e0ab68,#8a5c34)}
.veils button[data-v="sage"] span{background:linear-gradient(130deg,#9cbb82,#4e6b3e)}
.veils button[data-v="dusk"] span{background:linear-gradient(130deg,#e0a48f,#7e4a3a)}
.veils button:hover{transform:translateY(-1px)}
.veils button.on{border-color:var(--copper-2);box-shadow:0 0 14px rgba(207,149,82,.3)}
.veils .vnote{font-size:12px;color:var(--ink3);font-weight:300;flex-basis:100%;max-width:520px;line-height:1.6}

/* the film block: the teacher opens every passage in person */
.film{margin:0 0 46px;max-width:660px}
.film .frame{position:relative;aspect-ratio:16/9;border-radius:18px;overflow:hidden;
  border:1px solid var(--glass-bd2);box-shadow:var(--shadow);
  background:
    radial-gradient(120% 90% at 50% 108%, rgba(207,149,82,.16), transparent 55%),
    radial-gradient(90% 70% at 18% -8%, rgba(255,240,214,.05), transparent 50%),
    linear-gradient(165deg, var(--panel2), rgba(12,10,8,.92))}
html[data-veil="sage"] .film .frame{background:
    radial-gradient(120% 90% at 50% 108%, rgba(143,168,119,.16), transparent 55%),
    radial-gradient(90% 70% at 18% -8%, rgba(240,255,220,.05), transparent 50%),
    linear-gradient(165deg, var(--panel2), rgba(9,12,7,.92))}
html[data-veil="dusk"] .film .frame{background:
    radial-gradient(120% 90% at 50% 108%, rgba(207,134,114,.16), transparent 55%),
    radial-gradient(90% 70% at 18% -8%, rgba(255,230,220,.05), transparent 50%),
    linear-gradient(165deg, var(--panel2), rgba(14,8,8,.92))}
.film .frame:after{content:"";position:absolute;inset:0;opacity:.06;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>")}
.film .silhouette{position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:46%;height:72%;
  border-radius:50% 50% 0 0/72% 72% 0 0;opacity:.5;
  background:linear-gradient(180deg, rgba(255,240,214,.10), rgba(255,240,214,.02) 55%, transparent);
  filter:blur(2px)}
.film .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:64px;height:64px;border-radius:50%;
  border:1px solid var(--glass-bd2);background:rgba(12,10,8,.45);backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;transition:.25s}
.film .play:before{content:"";display:block;width:0;height:0;margin-left:4px;
  border-top:9px solid transparent;border-bottom:9px solid transparent;border-left:14px solid var(--copper-2)}
.film .frame:hover .play{transform:translate(-50%,-50%) scale(1.06);border-color:var(--copper-2)}
.film .ftag{position:absolute;top:14px;left:14px;font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--copper-2);font-weight:600;border:1px solid var(--glass-bd2);border-radius:100px;padding:5px 12px;
  background:rgba(12,10,8,.5);backdrop-filter:blur(8px)}
.film .fdur{position:absolute;bottom:14px;right:16px;font-size:11px;color:var(--ink3);letter-spacing:.08em}
.film .fcap{font-size:13px;color:var(--ink3);font-weight:300;line-height:1.65;margin-top:12px;max-width:560px}
.film .fcap em{font-style:italic;color:var(--ink2)}

/* walked passages (the room remembers) */
.passage .pm{display:flex;align-items:center;gap:9px}
.passage .walkdot{width:7px;height:7px;border-radius:50%;background:var(--sage);
  box-shadow:0 0 8px rgba(143,168,119,.6);display:none}
.passage.walked .walkdot{display:inline-block}
.passage.walked .pt{color:var(--ink2)}

/* ══════════════════ the arrival (threshold letter) ══════════════════ */
.arrival{min-height:92vh;display:flex;align-items:center;padding:130px 0 80px}
.arrival.off{display:none}
.aletter{max-width:600px}
.aletter .asal{font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--copper-2);font-weight:600;margin-bottom:26px}
.aletter p{font-family:var(--disp);font-size:20px;color:var(--ink);font-weight:400;line-height:1.75;margin-bottom:22px}
.aletter p em{font-style:italic;color:var(--copper-2)}
.aletter .asig{font-family:var(--disp);font-style:italic;font-size:17px;color:var(--ink2);margin:34px 0 46px}
.aletter .aq{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink3);font-weight:600;margin-bottom:14px}
.aletter .aintent{width:100%;max-width:460px;background:transparent;border:none;border-bottom:1px solid var(--glass-bd2);
  border-radius:0;padding:10px 2px;font-family:var(--disp);font-style:italic;font-size:18px;color:var(--ink);outline:none;transition:.25s}
.aletter .aintent:focus{border-bottom-color:var(--copper-2)}
.aletter .aintent::placeholder{color:var(--ink3);font-weight:300}
.aletter .actas{display:flex;align-items:center;gap:22px;margin-top:40px;flex-wrap:wrap}
.aletter .askip{font-size:13px;color:var(--ink3);border-bottom:1px solid transparent;transition:.2s;cursor:pointer}
.aletter .askip:hover{color:var(--ink2)}

/* ══════════════════ the commons ══════════════════ */
.doors{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.door{padding:0;display:flex;flex-direction:column;min-height:300px;transition:.25s}
a.door:hover{transform:translateY(-4px);border-color:var(--glass-bd2)}
.door .dscene{height:140px;position:relative;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,rgba(36,31,24,.9),rgba(16,14,11,.7));border-bottom:1px solid var(--linesoft)}
.door .dscene .iris-s{width:40px;height:40px}
.door .dchip{position:absolute;top:14px;right:14px;display:flex;align-items:center;gap:6px;font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--copper-2);font-weight:600;border:1px solid var(--glass-bd2);border-radius:100px;
  padding:5px 11px;background:rgba(12,10,8,.55);backdrop-filter:blur(10px)}
.door .dchip .dd{width:6px;height:6px;border-radius:50%;background:var(--copper-2);box-shadow:0 0 8px rgba(224,171,104,.7)}
.door .dbody{padding:24px 26px 26px;flex:1;display:flex;flex-direction:column}
.door .dk{font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink3);font-weight:600;margin-bottom:8px}
.door h3{font-family:var(--disp);font-size:21px;color:var(--ink);font-weight:500;margin-bottom:8px}
.door p{font-size:14px;color:var(--ink2);font-weight:300;line-height:1.65;flex:1}
.door .dlink{font-size:13px;color:var(--copper-2);font-weight:600;margin-top:18px}
.door.veiled{border-style:dashed;border-color:rgba(214,180,130,.18);background:rgba(20,17,13,.3);
  align-items:center;justify-content:center;text-align:center;padding:36px 30px}
.door.veiled .di{font-family:var(--disp);font-style:italic;font-size:32px;color:var(--ink3);line-height:1;margin-bottom:14px}
.door.veiled h3{font-size:19px}
.door.veiled p{flex:none;margin-top:6px}
.door.veiled:hover{border-color:rgba(214,180,130,.32);background:rgba(24,20,15,.42)}
@media (max-width:900px){.doors{grid-template-columns:1fr}}

/* ══════════════════ glass, light and motion (the dimensional pass) ══════════════════ */
/* true glass */
.panel{backdrop-filter:blur(18px) saturate(1.15);-webkit-backdrop-filter:blur(18px) saturate(1.15)}
/* specular light that follows the pointer */
.panel:after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;
  transition:opacity .35s;background:radial-gradient(340px 260px at var(--mx,50%) var(--my,40%),rgba(255,240,214,.09),transparent 62%)}
.panel:hover:after{opacity:1}
/* pointer tilt (JS drives --rx/--ry; identity when untouched) */
.rv.in.panel,.panel.tiltable{transform:perspective(1100px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg))}
/* asymmetric rhythm on desktop grids */
/* staggered reveals */
.stdgrid>.rv:nth-child(2),.ecogrid>.rv:nth-child(2),.doors>.rv:nth-child(2){transition-delay:.08s}
.stdgrid>.rv:nth-child(3),.ecogrid>.rv:nth-child(3),.doors>.rv:nth-child(3){transition-delay:.16s}
.stdgrid>.rv:nth-child(4),.ecogrid>.rv:nth-child(4){transition-delay:.24s}
.stdgrid>.rv:nth-child(5),.ecogrid>.rv:nth-child(5){transition-delay:.32s}
.stdgrid>.rv:nth-child(6),.ecogrid>.rv:nth-child(6){transition-delay:.4s}
/* ambient parallax layers */
#irisField,.amb .rad{will-change:transform}

/* the hero room: the product floating as an object */
.hgrid{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center;width:100%}
.heroroom{display:block;max-width:420px;justify-self:end;border-radius:22px;padding:30px 30px 26px;
  background:var(--panel);border:1px solid var(--glass-bd2);box-shadow:0 44px 96px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,240,214,.07);
  backdrop-filter:blur(20px) saturate(1.2);-webkit-backdrop-filter:blur(20px) saturate(1.2);
  position:relative;overflow:hidden;
  transform:perspective(1100px) rotateX(var(--rx,2deg)) rotateY(var(--ry,-7deg));
  animation:roomFloat 11s ease-in-out infinite}
@keyframes roomFloat{0%,100%{margin-top:0}50%{margin-top:-10px}}
@media (prefers-reduced-motion:reduce){.heroroom{animation:none}}
.heroroom:before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(155deg,rgba(255,240,214,.08),transparent 40%)}
.heroroom:after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;
  transition:opacity .35s;background:radial-gradient(300px 220px at var(--mx,50%) var(--my,40%),rgba(255,240,214,.1),transparent 62%)}
.heroroom:hover:after{opacity:1}
.heroroom .hrtop{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.heroroom .hrtop .iris-s{width:26px;height:26px}
.heroroom .hrt{font-family:var(--disp);font-size:17px;color:var(--ink);font-weight:500;line-height:1.15}
.heroroom .hrs{font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--copper-2);font-weight:600;margin-top:3px}
.heroroom .hrchip{margin-left:auto;font-size:9px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink3);
  border:1px solid var(--glass-bd);border-radius:100px;padding:4px 10px;white-space:nowrap}
.heroroom .hrintel{font-family:var(--disp);font-style:italic;font-size:14.5px;color:var(--ink);line-height:1.55;
  padding-left:14px;border-left:1.5px solid var(--copper);margin-bottom:20px}
.heroroom .hrrow{display:flex;align-items:baseline;gap:14px;padding:11px 2px;border-bottom:1px solid var(--linesoft)}
.heroroom .hrrow:last-of-type{border-bottom:none}
.heroroom .hrrow .n{font-family:var(--disp);font-style:italic;font-size:14px;color:var(--copper);width:18px;text-align:center}
.heroroom .hrrow .t{font-family:var(--disp);font-size:14.5px;color:var(--ink2)}
.heroroom .hrfoot{font-size:12.5px;color:var(--copper-2);font-weight:600;margin-top:18px;text-align:right}
@media (max-width:1000px){.hgrid{grid-template-columns:1fr}.heroroom{display:none}}

/* film frame joins the tilt system */
.film .frame{transform:perspective(1100px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg))}