/* THE SEVEN LAWS — SLIDE WALK (companion deck to the class page; same design system) */
:root{
  --paper:#f6f1e7; --paper-2:#efe7d6; --paper-3:#e9dfc9;
  --ink:#241f18; --ink-soft:#5b5344; --ink-faint:#8a8069;
  --gold:#b08428; --gold-pale:#e7d3a3; --gold-display:#F4C430; --gold-ink:#604905;
  --line:#d8cdb4; --cover:#241f18; --cover-2:#2e2820;
  --ember:#CC5733;
  --serif:'Cormorant Garamond',Georgia,serif;
  --sans:'Inter',system-ui,sans-serif;
  --mono:'JetBrains Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-weight:300;font-size:15.5px;line-height:1.5;overflow:hidden}
/* grain overlay */
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:2000;
  background-image:radial-gradient(var(--ink) 0.5px,transparent 0.5px);
  background-size:4px 4px;mix-blend-mode:multiply;opacity:.05}
img{max-width:100%;display:block}
a{color:var(--gold-ink)}
.mono{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase}

/* ── top bar ──────────────────────────────── */
.topbar{position:fixed;top:0;left:0;right:0;height:60px;z-index:1000;background:rgba(246,241,231,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;gap:16px}
.tb-left{display:flex;align-items:center;gap:16px;min-width:0}
.filetag{color:var(--ink-soft);white-space:nowrap}
.filetag b{color:var(--ember);font-weight:500}
.tb-right{display:flex;align-items:center;gap:18px}
.hint{color:var(--ink-faint)}
.counter{color:var(--gold-ink);font-weight:500}
@media(max-width:820px){.hint{display:none}}

/* ── dot rail ─────────────────────────────── */
.rail{position:fixed;right:20px;top:50%;transform:translateY(-50%);z-index:900;display:flex;flex-direction:column;gap:9px}
.rail a{width:8px;height:8px;border-radius:50%;background:var(--line);display:block;position:relative;transition:background .3s}
.rail a.on{background:var(--gold)}
.rail a .n{position:absolute;right:16px;top:-3px;font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--gold-ink);opacity:0;white-space:nowrap}
.rail a.on .n{opacity:1}
@media(max-width:1220px){.rail{display:none}}

/* ── stage + slides ───────────────────────── */
.stage{position:relative;height:100vh;height:100svh;overflow:hidden}
.slide{position:relative;height:100%;padding:92px 72px 40px;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:56px;align-content:center;border-bottom:1px solid var(--line);overflow-y:auto;scrollbar-width:none}
.slide::-webkit-scrollbar{display:none}
.slide::before{content:attr(data-num);position:absolute;top:64px;right:34px;font-family:var(--serif);font-size:clamp(90px,12vw,140px);line-height:1;color:var(--gold);opacity:.08;pointer-events:none}
.js .slide{position:absolute;inset:0;transform:translateX(100%);opacity:0;transition:transform .55s cubic-bezier(.22,.61,.36,1),opacity .55s ease;pointer-events:none}
.js .slide.active{transform:translateX(0);opacity:1;pointer-events:auto}

.s-text{min-width:0}
.kicker{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.kicker .rule{flex:0 0 42px;height:1px;background:var(--gold)}
.kicker span{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint)}
.slide h2{font-family:var(--serif);font-weight:600;font-size:clamp(1.8rem,3.4vw,2.9rem);line-height:1.1;margin-bottom:26px}

.blist{list-style:none}
.blist li{position:relative;padding-left:28px;font-family:var(--serif);font-size:clamp(1.12rem,1.55vw,1.42rem);line-height:1.42;color:var(--ink-soft);margin-bottom:16px}
.blist li::before{content:"";position:absolute;left:0;top:.6em;width:15px;height:2px;background:var(--gold)}
.blist li b{color:var(--ink);font-weight:600}
.blist li i{color:var(--gold-ink)}
.js .blist li{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.js .slide.active .blist li{opacity:1;transform:none}
.js .slide.active .blist li:nth-child(1){transition-delay:.18s}
.js .slide.active .blist li:nth-child(2){transition-delay:.30s}
.js .slide.active .blist li:nth-child(3){transition-delay:.42s}
.js .slide.active .blist li:nth-child(4){transition-delay:.54s}
.js .slide.active .blist li:nth-child(5){transition-delay:.66s}

/* ── figures ──────────────────────────────── */
figure.fig{margin:0;min-width:0}
.frame{position:relative;aspect-ratio:21/9;overflow:hidden;border:1px solid var(--line)}
.frame::before,.frame::after{content:"";position:absolute;width:26px;height:26px;border:1px solid var(--gold);z-index:2}
.frame::before{top:10px;left:10px;border-right:0;border-bottom:0}
.frame::after{bottom:10px;right:10px;border-left:0;border-top:0}
.frame img{width:100%;height:100%;object-fit:cover}
figcaption{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);margin-top:10px}

/* ── cover slide ──────────────────────────── */
.slide-cover{grid-template-columns:1fr;justify-items:center;text-align:center;padding-top:104px}
.cover-in{display:flex;flex-direction:column;align-items:center;max-width:920px}
.cover-in .filetag{margin-bottom:22px}
.cover-in .filetag .rule{flex:0 0 42px;height:1px;background:var(--gold)}
h1{font-family:var(--serif);font-weight:600;font-size:clamp(3rem,7.5vw,5.4rem);line-height:1.02}
h1 .gold{color:var(--gold)}
.sub{font-family:var(--serif);font-style:italic;font-size:clamp(1.15rem,2vw,1.5rem);color:var(--ink-soft);max-width:56ch;margin:18px 0 30px}
.thesis{border:1px solid var(--gold);background:var(--paper-2);padding:18px 26px;max-width:720px;margin-bottom:30px;text-align:left}
.thesis .k{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--ember);margin-bottom:8px}
.thesis p{font-family:var(--serif);font-size:clamp(1.05rem,1.5vw,1.25rem);line-height:1.45;color:var(--ink)}
.slide-cover figure.fig{max-width:700px;width:100%}
.cta-row{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;justify-content:center}
.btn{display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;padding:14px 26px;border:1px solid var(--ink);color:var(--ink);text-decoration:none;transition:all .25s}
.btn:hover{background:var(--ink);color:var(--gold-pale)}
.btn.gold{background:var(--gold);border-color:var(--gold);color:#fff}
.btn.gold:hover{background:var(--gold-ink);border-color:var(--gold-ink);color:var(--gold-pale)}

/* ── final slide capstone strip ───────────── */
.slide-final{grid-template-rows:1fr auto;row-gap:28px}
.slide-final .s-text,.slide-final>figure.fig{grid-row:1}
.slide-final .s-text{grid-column:1}
.slide-final>figure.fig{grid-column:2}
.cap-strip{grid-row:2;grid-column:1/-1;background:var(--cover);color:var(--paper);padding:18px 30px;display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.cap-strip .cap-kicker{color:var(--ember)}
.cap-strip h3{font-family:var(--serif);font-weight:600;font-size:clamp(1.3rem,2.2vw,1.8rem);color:var(--gold-display)}
.cap-strip p{font-family:var(--serif);font-style:italic;color:var(--gold-pale);font-size:1.05rem}
.cap-strip .btn{margin-left:auto}
.cap-strip .btn.gold{color:#fff}

/* ── no-JS fallback: stacked scroll ───────── */
html:not(.js) .slide{position:static;min-height:100svh}
html:not(.js) body{overflow:auto}

@media(max-width:900px){
  .slide{grid-template-columns:1fr;gap:30px;padding:84px 28px 32px;overflow-y:auto}
  .slide::before{top:64px;right:24px}
  .slide-final{grid-template-columns:1fr}
  .slide-final .s-text,.slide-final>figure.fig{grid-column:1}
  .blist li{margin-bottom:12px}
}