/* ============ TOKENS ============ */
:root{
  --bg:#0b0b0a; --bg2:#151412; --graphite:#1a1917; --line:rgba(255,255,255,.09); --line-strong:rgba(255,255,255,.18);
  --off-white:#f2efe9; --off-white-dim:#c9c5bc; --paper:#f2efe9; --paper-line:rgba(11,11,10,.1); --paper-dim:rgba(11,11,10,.6);
  --alu:#8a8d90; --gold:#d4a017; --gold-bright:#f0c33d;
  --text:#f2efe9; --text-dim:rgba(242,239,233,.58);
  --font:'Inter',sans-serif; --font-mono:'JetBrains Mono',monospace;
  --ease:cubic-bezier(.22,.7,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{background:var(--bg);scroll-behavior:auto;}
body{background:var(--bg);color:var(--text);font-family:var(--font);overflow-x:hidden;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;background:none;border:none;color:inherit;cursor:pointer;}
::selection{background:var(--gold);color:#0a0500;}
.mono{font-family:var(--font-mono);letter-spacing:.02em;}
@media (prefers-reduced-motion: reduce){ *{animation-duration:.01ms !important; transition-duration:.01ms !important;} }

/* ============ NAV ============ */
.nav{position:fixed;top:0;left:0;right:0;z-index:900;display:flex;align-items:center;justify-content:space-between;padding:24px 40px;background:transparent;border-bottom:1px solid transparent;transition:background .4s var(--ease),border-color .4s var(--ease),padding .4s var(--ease);}
.nav.solid{background:rgba(11,11,10,.86);backdrop-filter:blur(14px);border-color:var(--line);padding:15px 40px;}
.nav-mark{display:flex;align-items:center;gap:10px;}
.nav-mark img{height:46px;width:auto;}
.nav-links{display:flex;gap:36px;}
.nav-links a{font-size:13px;letter-spacing:.02em;color:var(--text-dim);position:relative;padding-bottom:4px;transition:color .3s;font-weight:500;}
.nav-links a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--gold);transition:width .3s var(--ease);}
.nav-links a:hover,.nav-links a.active{color:var(--text);}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}
.nav-cta{font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.04em;padding:11px 20px;border:1px solid var(--line-strong);transition:border-color .3s,background .3s;}
.nav-cta:hover{border-color:var(--gold);background:rgba(212,160,23,.08);}
.nav-burger{display:none;flex-direction:column;gap:5px;width:24px;}
.nav-burger span{height:1px;background:var(--text);width:100%;}
.nav-mobile{position:fixed;top:0;right:-100%;width:78%;max-width:320px;height:100vh;background:var(--bg2);z-index:950;display:flex;flex-direction:column;gap:26px;padding:100px 32px;transition:right .4s var(--ease);border-left:1px solid var(--line);}
.nav-mobile.open{right:0;}
.nav-mobile a{font-size:19px;font-weight:500;}
@media (max-width:820px){.nav-links,.nav-cta{display:none;}.nav-burger{display:flex;}}

/* ============ SCROLL PROGRESS RAIL ============ */
.scroll-rail{position:fixed;top:0;left:0;width:100%;height:2px;background:var(--line);z-index:850;}
.scroll-rail-fill{height:100%;width:0%;background:var(--gold);}

/* ============ LAYOUT ============ */
main{position:relative;z-index:1;padding-top:0;}
.section{position:relative;padding:130px 40px;max-width:1360px;margin:0 auto;}
.section--paper{background:var(--paper);color:#141310;}
.section--paper .eyebrow{color:#8a6b0a;}
.section--paper .lead{color:var(--paper-dim);}
.eyebrow{font-family:var(--font-mono);font-size:14px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:18px;}
.eyebrow.center{text-align:center;}
.title{font-weight:600;font-size:clamp(34px,4.6vw,60px);line-height:1.06;letter-spacing:-.015em;margin-bottom:18px;}
.title.center{text-align:center;margin-left:auto;margin-right:auto;}
.title em{font-style:normal;color:var(--gold);}
.lead{font-size:16px;line-height:1.65;color:var(--text-dim);max-width:520px;}
.section-head{max-width:680px;margin-bottom:60px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head .title{margin-bottom:0;}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:13px;font-weight:600;letter-spacing:.03em;padding:15px 26px;transition:all .25s var(--ease);}
.btn-primary{background:var(--gold);color:#161200;}
.btn-primary:hover{background:var(--gold-bright);}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text);}
.btn-ghost:hover{border-color:var(--gold);}
.section--paper .btn-ghost{border-color:var(--paper-line);color:#141310;}
.btn-arrow{transition:transform .25s;}
.btn:hover .btn-arrow{transform:translateX(3px);}

[data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
[data-reveal].in{opacity:1;transform:none;}

/* ============ PAGE HERO (About / Solutions / Contact) ============ */
.page-hero{position:relative;min-height:56vh;display:flex;align-items:flex-end;overflow:hidden;padding:0 40px 70px;}
.page-hero-bg{position:absolute;inset:0;z-index:0;background:var(--bg2);}
.page-hero-bg video,.page-hero-bg img{width:100%;height:100%;object-fit:cover;object-position:top;}
.page-hero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,11,10,.3) 0%,rgba(11,11,10,.6) 55%,var(--bg) 100%);z-index:1;}
.page-hero-content{position:relative;z-index:2;max-width:760px;padding-top:110px;}
.page-hero .eyebrow{color:var(--gold-bright);}

/* ============ SIGNATURE: BUILDING IS A SYSTEM ============ */
.big-idea{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:60px 24px;}
.big-idea-stack{font-weight:700;font-size:clamp(34px,7vw,96px);line-height:1.02;letter-spacing:-.02em;margin-bottom:34px;}
.big-idea-words{display:flex;gap:.5em;flex-wrap:wrap;justify-content:center;font-family:var(--font-mono);font-size:clamp(13px,1.6vw,18px);letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim);margin-bottom:46px;}
.big-idea-words span{opacity:.25;transition:opacity .4s var(--ease),color .4s var(--ease);}
.big-idea-words span.lit{opacity:1;color:var(--gold);}
.big-idea-final{font-weight:700;font-size:clamp(20px,3vw,32px);letter-spacing:-.01em;}

/* ============ SYSTEM STAGES (three systems — real photo, not vectors) ============ */
.system-stage-wrap{position:relative;}
.system-visual{position:relative;height:56vh;border:1px solid var(--line);overflow:hidden;margin-bottom:50px;}
.system-visual img{width:100%;height:100%;object-fit:cover;object-position:top;filter:saturate(.85) brightness(.7);transition:opacity .3s;}
.system-visual .sv-scrim{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(11,11,10,.85) 100%);}
.system-visual .sv-label{position:absolute;left:28px;bottom:24px;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--gold-bright);text-transform:uppercase;transition:opacity .3s;}
.system-select{display:flex;justify-content:center;gap:1px;background:var(--line);border:1px solid var(--line);max-width:760px;margin:0 auto;}
.system-select button{flex:1;background:var(--bg);padding:20px 16px;text-align:center;transition:background .25s;}
.system-select button:hover,.system-select button.active{background:var(--bg2);}
.system-select .idx{display:block;font-family:var(--font-mono);font-size:11px;color:var(--gold);margin-bottom:6px;}
.system-select .name{font-weight:600;font-size:14px;}
@media (max-width:700px){.system-select{flex-direction:column;}}

/* ============ SPEC REVEAL (formwork hero — real photo panel) ============ */
.spec-hero{display:grid;grid-template-columns:1fr 1fr;gap:6vw;align-items:center;}
.spec-visual{display:flex;justify-content:center;perspective:1400px;}
.panel-rotate{width:280px;height:380px;border:1px solid var(--line-strong);position:relative;overflow:hidden;}
.panel-rotate img{width:100%;height:100%;object-fit:cover;object-position:top;filter:saturate(.9) brightness(.75);}
.spec-list{display:flex;flex-direction:column;gap:0;}
.spec-row{padding:20px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:baseline;gap:20px;}
.spec-row .val{font-family:var(--font-mono);font-weight:600;font-size:clamp(20px,2.4vw,30px);white-space:nowrap;}
.spec-row .lbl{font-size:12px;color:var(--text-dim);letter-spacing:.04em;text-align:right;}
.spec-note{font-family:var(--font-mono);font-size:11px;color:var(--text-dim);margin-top:16px;opacity:.7;}
@media (max-width:900px){.spec-hero{grid-template-columns:1fr;}}

/* ============ PRECISION (measurement line over real photo) ============ */
.precision-visual{position:relative;height:260px;border:1px solid var(--line);overflow:hidden;margin:34px 0;}
.precision-visual img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.65);}
.precision-visual .pv-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,11,10,.25),rgba(11,11,10,.6));}
.precision-track{display:flex;justify-content:center;gap:40px;margin-top:30px;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--text-dim);}
.precision-track span{opacity:.3;}
.precision-track span.on{opacity:1;color:var(--text);font-weight:600;}

/* ============ CYCLE (build/strike/climb/repeat) ============ */
.cycle-stage{display:flex;justify-content:center;gap:2px;flex-wrap:wrap;margin-top:50px;}
.cycle-step{flex:1;min-width:140px;border:1px solid var(--line);padding:26px 20px;text-align:center;}
.cycle-step .idx{font-family:var(--font-mono);font-size:11px;color:var(--gold);display:block;margin-bottom:10px;}
.cycle-step h4{font-weight:600;font-size:15px;margin-bottom:6px;}
.cycle-step p{font-size:12px;color:var(--text-dim);}
.photo-section .cycle-step,.photo-section .why-item{background:rgba(11,11,10,.5);backdrop-filter:blur(6px);}

/* ============ DRAWING TO BUILDING (all steps visible, no scroll) ============ */
.process-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.process-step{background:var(--bg);padding:26px 20px;min-height:170px;display:flex;flex-direction:column;justify-content:flex-end;}
.process-step .idx{font-family:var(--font-mono);font-size:11px;color:var(--gold);margin-bottom:10px;}
.process-step h4{font-weight:600;font-size:14px;margin-bottom:6px;}
.process-step p{font-size:12px;color:var(--text-dim);line-height:1.5;}
@media (max-width:820px){.process-row{grid-template-columns:repeat(2,1fr);}}
@media (max-width:480px){.process-row{grid-template-columns:1fr;}}

/* ============ PHOTO-BACKED SECTION (replaces empty line-drawn boxes) ============ */
.photo-section{position:relative;overflow:hidden;}
.photo-section-bg{position:absolute;inset:0;z-index:0;}
.photo-section-bg img,.photo-section-bg video{width:100%;height:100%;object-fit:cover;object-position:top;filter:saturate(.8) brightness(.4);}
.photo-section-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,11,10,.55) 0%,rgba(11,11,10,.8) 100%);z-index:1;}
.photo-section--light .photo-section-scrim{background:linear-gradient(180deg,rgba(11,11,10,.28) 0%,rgba(11,11,10,.5) 100%);}
.photo-section > *:not(.photo-section-bg):not(.photo-section-scrim){position:relative;z-index:2;}

/* ============ ENGINEERING TIMELINE (off-white) ============ */
.timeline-row{display:flex;border-top:1px solid var(--line);margin-top:10px;}
.timeline-item{flex:1;padding:24px 18px 0;border-left:1px solid var(--line);}
.timeline-item:first-child{border-left:none;}
.timeline-item .idx{font-family:var(--font-mono);font-size:11px;color:var(--gold);display:block;margin-bottom:8px;}
.timeline-item h4{font-weight:600;font-size:14px;margin-bottom:6px;}
.timeline-item p{font-size:12px;color:var(--text-dim);line-height:1.5;}
@media (max-width:900px){.timeline-row{flex-direction:column;}.timeline-item{border-left:none;border-top:1px solid var(--line);padding:20px 0 0;}}

/* ============ NARRATIVE SECTIONS (safety screen / scaffolding) ============ */
.narrative{display:grid;grid-template-columns:1fr 1fr;gap:6vw;align-items:center;}
.narrative-visual{position:relative;border:1px solid var(--line);min-height:340px;overflow:hidden;}
.narrative-visual img,.narrative-visual video{width:100%;height:100%;object-fit:cover;object-position:top;filter:saturate(.8) brightness(.7);}
.narrative-tags{display:flex;gap:10px;margin:20px 0;flex-wrap:wrap;}
.narrative-tags span{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;border:1px solid var(--line-strong);padding:7px 14px;color:var(--text-dim);}
@media (max-width:900px){.narrative{grid-template-columns:1fr;}}

/* ============ WHY APEX ============ */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.why-item{background:var(--bg);padding:30px 22px;min-height:150px;display:flex;flex-direction:column;justify-content:flex-end;}
.why-item .idx{font-family:var(--font-mono);font-size:11px;color:var(--gold);margin-bottom:8px;}
.why-item h4{font-weight:600;font-size:15px;margin-bottom:6px;}
.why-item p{font-size:12px;color:var(--text-dim);line-height:1.5;}
@media (max-width:900px){.why-grid{grid-template-columns:1fr;}}

/* ============ FOUNDERS ============ */
.founders-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;max-width:760px;margin:0 auto;}
.founder-card{text-align:center;}
.founder-card .photo{border-radius:12px;overflow:hidden;margin-bottom:20px;border:1px solid var(--line);}
.founder-card .photo img{width:100%;height:100%;object-fit:cover;object-position:top;aspect-ratio:4/5;filter:saturate(.92) brightness(.95);}
.founder-card h4{font-weight:600;font-size:19px;margin-bottom:4px;}
.founder-card .role{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);}
@media (max-width:640px){.founders-grid{grid-template-columns:1fr;max-width:340px;}}

/* ============ STORY ============ */
.story-block{max-width:680px;margin:0 auto;}
.story-block p{font-size:16px;line-height:1.75;color:var(--text-dim);margin-bottom:20px;}
.story-block p.story-lead{font-size:19px;color:var(--text);font-weight:500;}
.story-block p.story-sign{font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;color:var(--gold);margin-top:34px;text-transform:uppercase;}

/* ============ CLIENT LOGOS ============ */
.client-strip{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:14px 40px;padding-top:10px;}
.client-strip span{font-family:var(--font-mono);font-size:15px;letter-spacing:.03em;color:var(--text-dim);opacity:.75;transition:opacity .25s,color .25s;}
.client-strip span:hover{opacity:1;color:var(--text);}
.logo-chip-row{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;}
.logo-chip{background:#fff;border-radius:10px;padding:18px 26px;display:flex;align-items:center;justify-content:center;min-width:140px;height:86px;transition:transform .3s var(--ease);}
.logo-chip:hover{transform:translateY(-3px);}
.logo-chip img{max-height:42px;max-width:150px;width:auto;height:auto;object-fit:contain;}
.logo-group-label{text-align:center;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim);margin:44px 0 22px;}
.logo-group-label:first-child{margin-top:0;}

/* ============ STATS (fixed: real value in DOM, animates only as enhancement) ============ */
.stats-row{display:flex;flex-wrap:wrap;justify-content:center;gap:7vw;text-align:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:56px 0;}
.stat .num{font-family:var(--font-mono);font-weight:700;font-size:clamp(30px,3.8vw,52px);color:var(--gold);}
.stat .lbl{margin-top:6px;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);}

/* ============ START A PROJECT — MULTI-STEP FORM ============ */
.wizard{max-width:640px;margin:0 auto;}
.wizard-progress{display:flex;gap:4px;margin-bottom:40px;}
.wizard-progress i{flex:1;height:2px;background:var(--line);}
.wizard-progress i.done{background:var(--gold);}
.wizard-step{display:none;}
.wizard-step.active{display:block;animation:wstep .4s var(--ease);}
@keyframes wstep{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}
.wizard-step h3{font-size:13px;font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--gold);margin-bottom:22px;}
.wizard-options{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.wopt{border:1px solid var(--line-strong);padding:18px 16px;text-align:left;font-size:14px;transition:border-color .25s,background .25s;}
.wopt:hover{border-color:var(--gold);}
.wopt.selected{border-color:var(--gold);background:rgba(212,160,23,.08);}
.wizard-nav{display:flex;justify-content:space-between;margin-top:34px;}
.wizard input,.wizard select,.wizard textarea{width:100%;background:var(--bg2);border:1px solid var(--line);padding:14px;color:var(--text);font-family:inherit;font-size:14px;margin-bottom:14px;}
.wizard input:focus,.wizard select:focus,.wizard textarea:focus{outline:none;border-color:var(--gold);}
.wizard label{display:block;font-size:12px;color:var(--text-dim);margin-bottom:6px;letter-spacing:.03em;text-transform:uppercase;}
.file-drop{border:1px dashed var(--line-strong);padding:30px;text-align:center;font-size:13px;color:var(--text-dim);margin-bottom:16px;}
.wizard-final{text-align:center;padding:20px 0;}

/* ============ MOBILE STICKY BAR ============ */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:800;display:none;grid-template-columns:1fr 1fr 1.4fr;background:rgba(11,11,10,.94);backdrop-filter:blur(14px);border-top:1px solid var(--line);}
.mobile-bar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:12px 6px;font-family:var(--font-mono);font-size:10px;letter-spacing:.05em;text-transform:uppercase;color:var(--text-dim);border-right:1px solid var(--line);}
.mobile-bar a:last-child{border-right:none;background:var(--gold);color:#161200;font-weight:700;}
@media (max-width:820px){ .mobile-bar{display:grid;} body{padding-bottom:64px;} }

/* ============ FOOTER ============ */
.site-footer{background:var(--bg2);border-top:1px solid var(--line);padding:70px 40px 30px;}
.footer-top{max-width:1360px;margin:0 auto;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:50px;border-bottom:1px solid var(--line);}
.footer-brand{max-width:320px;}
.footer-brand img{height:44px;margin-bottom:16px;}
.footer-brand p{font-size:13px;color:var(--text-dim);line-height:1.6;}
.footer-col h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:var(--text);opacity:.8;margin-bottom:10px;}
.footer-col a:hover{color:var(--gold);opacity:1;}
.footer-bottom{max-width:1360px;margin:0 auto;display:flex;justify-content:space-between;padding-top:24px;font-family:var(--font-mono);font-size:11px;color:var(--text-dim);flex-wrap:wrap;gap:10px;}
.footer-bottom a{color:var(--text-dim);text-decoration:none;transition:color .25s;}
.footer-bottom a:hover{color:var(--gold);}

/* ============ GENERIC CARD (kept for Solutions detail cards) ============ */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.card{background:var(--bg);padding:26px 20px;min-height:170px;display:flex;flex-direction:column;justify-content:flex-end;transition:background .25s;}
.card:hover{background:var(--bg2);}
.card-index{font-family:var(--font-mono);font-size:11px;color:var(--gold);display:block;margin-bottom:8px;}
.card h3{font-weight:600;font-size:15px;margin-bottom:6px;}
.card p{font-size:12px;color:var(--text-dim);line-height:1.5;}
@media (max-width:1000px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:520px){.card-grid{grid-template-columns:1fr;}}

.gallery-grid{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:140px;gap:1px;background:var(--line);border:1px solid var(--line);}
.gallery-item img{width:100%;height:100%;object-fit:cover;object-position:top;filter:saturate(.85) brightness(.85);}
.gi-1{grid-column:1/4;grid-row:1/4;} .gi-2{grid-column:4/7;grid-row:1/3;}
.gi-3{grid-column:4/6;grid-row:3/5;} .gi-4{grid-column:6/7;grid-row:3/5;}
@media (max-width:1000px){.gallery-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:200px;}.gi-1,.gi-2,.gi-3,.gi-4{grid-column:auto;grid-row:auto;}}

.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.quote-card{background:var(--bg);padding:28px 22px;}
.quote-card p{font-size:14px;line-height:1.6;color:var(--text);opacity:.85;margin-bottom:16px;}
.quote-card b{font-family:var(--font-mono);font-size:11px;color:var(--text-dim);}
@media (max-width:900px){.quote-grid{grid-template-columns:1fr;}}

.tabs-bar{display:flex;gap:1px;justify-content:center;margin-bottom:56px;background:var(--line);border:1px solid var(--line);max-width:600px;margin-left:auto;margin-right:auto;}
.tab-btn{flex:1;background:var(--bg);padding:14px 20px;font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--text-dim);transition:background .25s,color .25s;}
.tab-btn.active{background:var(--bg2);color:var(--text);border-bottom:2px solid var(--gold);}
.tab-panel{display:none;}
.tab-panel.active{display:block;}

.player-wrap{background:var(--bg2);border:1px solid var(--line);overflow:hidden;margin-bottom:40px;}
.player-frame{position:relative;background:#000;aspect-ratio:16/9;}
.player-frame video{width:100%;height:100%;object-fit:contain;background:#000;}
.chapter-list{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);}
.chapter-btn{background:var(--bg2);padding:16px 14px;text-align:left;font-size:12px;color:var(--text-dim);transition:background .25s,color .25s;}
.chapter-btn:hover{background:rgba(212,160,23,.08);color:var(--text);}
.chapter-btn.playing{background:rgba(212,160,23,.14);color:var(--gold-bright);}
.chapter-btn b{display:block;font-family:var(--font-mono);font-size:11px;color:var(--gold);margin-bottom:4px;}
@media (max-width:900px){.chapter-list{grid-template-columns:repeat(2,1fr);}}
@media (max-width:560px){.chapter-list{grid-template-columns:1fr;}}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;}
.contact-info p{font-size:14px;color:var(--text-dim);margin-bottom:16px;line-height:1.6;}
.contact-info a:hover{color:var(--gold);}
.contact-info .info-block{margin-bottom:28px;}
.contact-info .info-block h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);margin-bottom:8px;}
.map-block{margin-top:30px;border:1px solid var(--line);aspect-ratio:16/9;}
.map-block iframe{width:100%;height:100%;border:0;filter:grayscale(1) invert(.92) contrast(.9);}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;}}

/* ============ RESPONSIVE ============ */
@media (max-width:1000px){
  .footer-top{grid-template-columns:1fr 1fr;}
  .why-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:820px){
  .nav{padding:18px 22px;}
  .nav.solid{padding:13px 22px;}
  .page-hero{padding:0 22px 50px;min-height:50vh;}
}
@media (max-width:720px){
  .section{padding:70px 20px;}
  .why-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;}
  .cycle-stage{flex-direction:column;}
  .system-visual{height:40vh;}
}