/* CHRONOLITH — obsidian & bronze */
:root{
  --ink:#0c0a09;
  --ink-2:#161210;
  --bronze:#c8a35f;
  --bronze-dim:#8a7245;
  --bone:#e7e2d9;
  --bone-dim:#a89f92;
  --hairline:rgba(200,163,95,.18);
  --serif:"Cormorant Garamond",Georgia,serif;
  --sans:"Inter",-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html.lenis{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto}
body{
  background:var(--ink);
  color:var(--bone);
  font-family:var(--sans);
  font-weight:300;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--bronze);color:var(--ink)}

.skip{position:absolute;left:-999px;top:0;background:var(--bronze);color:var(--ink);padding:.6rem 1rem;z-index:100;font-size:.8rem}
.skip:focus{left:0}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
a{color:inherit}
:focus-visible{outline:1px solid var(--bronze);outline-offset:3px}

/* Loader */
.loader{
  position:fixed;inset:0;z-index:60;background:var(--ink);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.4rem;
  transition:opacity .9s ease .2s,visibility .9s ease .2s;
}
.loader.done{opacity:0;visibility:hidden}
.loader-arc{transition:stroke-dashoffset 1.4s cubic-bezier(.6,0,.2,1)}
.loader.tick .loader-arc{stroke-dashoffset:0}
.loader-hand{transform-origin:50px 50px;transition:transform 1.4s cubic-bezier(.7,0,.15,1)}
.loader.tick .loader-hand{transform:rotate(360deg)}
.loader-word{font-family:var(--sans);font-size:.68rem;letter-spacing:.55em;color:var(--bone-dim);padding-left:.55em}

/* Nav */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;justify-content:space-between;align-items:center;
  padding:1.4rem clamp(1.2rem,4vw,3.2rem);
  mix-blend-mode:normal;
  transition:background .5s ease,padding .5s ease;
}
.nav.scrolled{background:rgba(12,10,9,.82);backdrop-filter:blur(12px);padding:.9rem clamp(1.2rem,4vw,3.2rem);border-bottom:1px solid var(--hairline)}
.nav-mark{font-family:var(--sans);font-weight:500;font-size:.82rem;letter-spacing:.42em;text-decoration:none}
.nav-c{color:var(--bronze)}
.nav nav{display:flex;gap:clamp(1rem,2.6vw,2.4rem);align-items:center}
.nav nav a{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;text-decoration:none;color:var(--bone-dim);transition:color .3s}
.nav nav a:hover{color:var(--bone)}
.nav-cta{border:1px solid var(--bronze-dim);padding:.55em 1.1em;color:var(--bronze)!important;border-radius:2em;transition:background .3s,color .3s!important}
.nav-cta:hover{background:var(--bronze);color:var(--ink)!important}

/* Hero */
.hero{position:relative;min-height:100svh;display:grid;place-items:center;overflow:hidden}
#watch-canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero-copy{position:relative;text-align:center;z-index:2;padding:0 1.4rem;pointer-events:none}
.hero-est{font-size:.7rem;letter-spacing:.4em;text-transform:uppercase;color:var(--bronze);margin-bottom:1.6rem}
.hero-title{
  font-family:var(--serif);font-weight:300;
  font-size:clamp(3rem,9vw,7.2rem);
  line-height:.98;letter-spacing:.01em;
}
.hero-title .line{display:block;overflow:hidden}
.hero-title .line span{display:block;transform:translateY(110%)}
.hero-title em,.hero-title i{font-style:italic}
.hero-sub{margin-top:1.6rem;font-size:.92rem;color:var(--bone-dim);line-height:1.8}
.hero-copy{padding-bottom:5.5rem}
.hero-scroll{position:absolute;bottom:2.2rem;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:.8rem;z-index:2}
.hero-scroll span{font-size:.62rem;letter-spacing:.3em;text-transform:uppercase;color:var(--bone-dim);text-align:center}
.hero-scroll-line{width:1px;height:52px;background:var(--hairline);position:relative;overflow:hidden}
.hero-scroll-line::after{content:"";position:absolute;left:0;top:-30%;width:100%;height:30%;background:var(--bronze);animation:drop 2.2s cubic-bezier(.6,0,.4,1) infinite}
@keyframes drop{to{top:100%}}

/* Manifesto */
.manifesto{padding:clamp(7rem,16vh,12rem) clamp(1.4rem,8vw,10rem)}
.manifesto-text{
  font-family:var(--serif);font-weight:300;
  font-size:clamp(1.5rem,3.4vw,2.6rem);line-height:1.5;
  max-width:52ch;margin:0 auto;color:var(--bone-dim);
}
.manifesto-text em{color:var(--bronze);font-style:italic}
.manifesto-text .w{transition:color .6s ease}
.manifesto-text .w.lit{color:var(--bone)}
.manifesto-text em .w.lit{color:var(--bronze)}

/* Chapters */
.chapter-index{font-size:.7rem;letter-spacing:.4em;text-transform:uppercase;color:var(--bronze);margin-bottom:1.2rem}
.chapter-title{font-family:var(--serif);font-weight:300;font-size:clamp(2.4rem,6vw,4.6rem);line-height:1.05}
.chapter-head{padding:0 clamp(1.4rem,6vw,6rem) clamp(3rem,7vh,5rem)}

/* Movement */
.movement{position:relative;border-top:1px solid var(--hairline)}
.movement-sticky{
  position:sticky;top:0;min-height:100svh;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr) minmax(0,1fr);
  align-items:center;gap:clamp(1rem,3vw,3rem);
  padding:clamp(4rem,10vh,6rem) clamp(1.4rem,4vw,4rem);
}
.movement{height:340svh}
.movement-head{align-self:start;padding-top:8vh}
#escapement-canvas{width:100%;aspect-ratio:1;max-height:72svh;display:block;margin:0 auto}
.movement-notes{display:flex;flex-direction:column;gap:2rem;justify-content:center}
.m-note{opacity:.22;transform:translateY(6px);transition:opacity .6s ease,transform .6s ease;border-left:1px solid var(--hairline);padding-left:1.4rem}
.m-note.active{opacity:1;transform:none;border-left-color:var(--bronze)}
.m-note h3{font-family:var(--serif);font-weight:400;font-size:1.35rem;margin-bottom:.4rem}
.m-note p{font-size:.85rem;color:var(--bone-dim);max-width:34ch}

/* Collection */
.collection{padding:clamp(7rem,14vh,11rem) 0 clamp(5rem,10vh,8rem);border-top:1px solid var(--hairline)}
.watch-row{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(1rem,2.5vw,2.5rem);padding:0 clamp(1.4rem,6vw,6rem);
}
.watch-card{background:var(--ink-2);border:1px solid var(--hairline);padding:2rem 1.6rem 2.2rem;text-align:center;transition:border-color .4s,transform .4s}
.watch-card:hover{border-color:var(--bronze-dim);transform:translateY(-4px)}
.watch-card-canvas{aspect-ratio:1;margin-bottom:1.6rem}
.mini-watch{width:100%;height:100%;display:block}
.watch-card h3{font-family:var(--serif);font-weight:400;font-size:1.6rem;letter-spacing:.02em}
.watch-spec{font-size:.75rem;color:var(--bone-dim);letter-spacing:.06em;margin:.5rem 0 1rem}
.watch-price{font-size:.8rem;color:var(--bronze);letter-spacing:.14em}
.collection-note{text-align:center;margin-top:2.4rem;font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;color:var(--bone-dim)}

/* Craft */
.craft{padding:clamp(7rem,14vh,11rem) 0;border-top:1px solid var(--hairline)}
.craft-list{list-style:none;max-width:820px;margin:0 auto;padding:0 clamp(1.4rem,5vw,3rem)}
.craft-item{display:flex;gap:clamp(1.4rem,4vw,3.4rem);padding:2.6rem 0;border-bottom:1px solid var(--hairline);align-items:baseline}
.craft-no{font-family:var(--serif);font-style:italic;font-size:2rem;color:var(--bronze);min-width:2.4ch}
.craft-item h3{font-family:var(--serif);font-weight:400;font-size:1.5rem;margin-bottom:.5rem}
.craft-item p{font-size:.9rem;color:var(--bone-dim);max-width:56ch}

/* Fitting */
.fitting{padding:clamp(8rem,16vh,13rem) clamp(1.4rem,6vw,6rem);border-top:1px solid var(--hairline);text-align:center}
.fitting-title{font-family:var(--serif);font-weight:300;font-size:clamp(2rem,5.4vw,4rem);line-height:1.15}
.fitting-count{color:var(--bronze);font-variant-numeric:tabular-nums;font-style:italic}
.fitting-sub{margin:1.8rem auto 2.6rem;max-width:44ch;color:var(--bone-dim);font-size:.92rem}
.fitting-form{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}
.fitting-form input{
  background:transparent;border:1px solid var(--hairline);color:var(--bone);
  padding:.9em 1.3em;font-family:var(--sans);font-size:.9rem;min-width:min(320px,80vw);border-radius:2em;
}
.fitting-form input::placeholder{color:var(--bone-dim)}
.fitting-form button{
  background:var(--bronze);color:var(--ink);border:1px solid var(--bronze);
  padding:.9em 1.6em;font-family:var(--sans);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;
  border-radius:2em;cursor:pointer;transition:background .3s,color .3s;
}
.fitting-form button:hover{background:transparent;color:var(--bronze)}
.fitting-confirm{margin-top:1.4rem;color:var(--bronze);font-family:var(--serif);font-style:italic;font-size:1.1rem;min-height:1.6em}

/* Footer */
.footer{border-top:1px solid var(--hairline);padding:2.6rem clamp(1.4rem,4vw,3.2rem);display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center;font-size:.75rem;color:var(--bone-dim);letter-spacing:.08em}
.footer a{color:var(--bronze);text-decoration:none}
.footer a:hover{text-decoration:underline}
.footer-fine{width:100%;font-size:.68rem;opacity:.7}

/* 404 + guide shared bits */
.guide-body{max-width:760px;margin:0 auto;padding:8rem 1.4rem 6rem}
.guide-body h1{font-family:var(--serif);font-weight:300;font-size:clamp(2.4rem,6vw,4rem);margin-bottom:2.5rem}
.guide-body h2{font-family:var(--serif);font-weight:400;font-size:1.7rem;margin:3rem 0 .9rem;color:var(--bronze)}
.guide-body h3{font-size:1rem;margin:1.6rem 0 .5rem;font-weight:500}
.guide-body p,.guide-body li{color:var(--bone-dim);font-size:.95rem;margin-bottom:.8rem}
.guide-body ul,.guide-body ol{padding-left:1.3rem}
.guide-body code{font-family:ui-monospace,monospace;font-size:.85em;color:var(--bone);background:var(--ink-2);padding:.12em .4em;border-radius:3px}
.guide-body strong{color:var(--bone);font-weight:500}
.guide-body .back{display:inline-block;margin-bottom:3rem;font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--bronze);text-decoration:none}

.nf{min-height:100svh;display:grid;place-items:center;text-align:center;padding:1.4rem}
.nf-time{font-family:var(--serif);font-size:clamp(4rem,16vw,10rem);font-weight:300;line-height:1;color:var(--bronze)}
.nf p{color:var(--bone-dim);margin:1.2rem 0 2rem}
.nf a{color:var(--bronze)}

/* Responsive */
@media (max-width:960px){
  .movement-sticky{grid-template-columns:1fr;gap:1.6rem;align-content:center}
  .movement-head{padding-top:10vh}
  #escapement-canvas{max-height:44svh}
  .movement-notes{flex-direction:column;gap:1rem}
  .watch-row{grid-template-columns:1fr;max-width:420px;margin:0 auto}
}
@media (max-width:640px){
  .nav nav a:not(.nav-cta){display:none}
  .br-d{display:none}
  .hero-sub br{display:none}
  .craft-item{flex-direction:column;gap:.6rem}
}

/* Reduced motion */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .hero-title .line span{transform:none}
  .m-note{opacity:1;transform:none}
  .movement{height:auto}
  .movement-sticky{position:static;min-height:0}
}