/* ————————————————————————————————————————————————
   Meissner & Fils — Calibre Nº 9
   black-velvet precision · jeweler's-loupe intimacy
   ———————————————————————————————————————————————— */

:root{
  --velvet:#0B0A08;
  --velvet-2:#141210;
  --gilt:#D9C58A;
  --gilt-dim:rgba(217,197,138,.55);
  --hairline:rgba(217,197,138,.18);
  --garnet:#8C1D2F;
  --gunmetal:#3A3A38;
  --silver:#EFEDE8;
  --body:rgba(239,237,232,.76);
  --faint:rgba(239,237,232,.45);
  --display:"Marcellus",serif;
  --serif:"EB Garamond",Georgia,serif;
  --caps:"Cormorant SC",serif;
  --mono:"Spline Sans Mono",ui-monospace,monospace;
  --wrap:1100px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;background:#0B0A08}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  background:var(--velvet);
  color:var(--body);
  font-family:var(--serif);
  font-size:1.075rem;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* velvet grain */
body::before{
  content:"";position:fixed;inset:0;z-index:40;pointer-events:none;opacity:.16;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0.85 0 0 0 0 0.77 0 0 0 0 0.54 0 0 0 0.5 0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
}

::selection{background:var(--garnet);color:var(--silver)}

a{color:var(--gilt);text-decoration:none}
a:hover{color:var(--silver)}
:focus-visible{outline:1px solid var(--gilt);outline-offset:4px;border-radius:1px}

.skip{position:fixed;top:-3rem;left:1rem;z-index:100;background:var(--velvet-2);color:var(--gilt);
  padding:.5rem 1rem;border:1px solid var(--hairline);transition:top .2s}
.skip:focus{top:1rem}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 clamp(1.25rem,5vw,3rem)}

/* ——— type ——— */
.eyebrow{
  font-family:var(--caps);font-size:.8rem;font-weight:600;
  letter-spacing:.34em;text-transform:lowercase;font-variant:small-caps;
  color:var(--gilt-dim);margin-bottom:1.1rem;
}
.section-title{
  font-family:var(--display);font-weight:400;color:var(--silver);
  font-size:clamp(1.9rem,3.6vw,2.9rem);letter-spacing:.06em;line-height:1.15;
  margin-bottom:1.4rem;
}

/* ——— nav ——— */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:50;
  display:flex;align-items:center;gap:2rem;
  padding:.9rem clamp(1.25rem,4vw,2.5rem);
  transition:background .4s,border-color .4s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{background:rgba(11,10,8,.82);backdrop-filter:blur(10px);border-bottom-color:var(--hairline)}
.nav-mark{display:flex;align-items:baseline;gap:.7rem;color:var(--silver)}
.monogram{
  font-family:var(--display);font-size:1rem;color:var(--gilt);
  border:1px solid var(--hairline);padding:.28rem .5rem;letter-spacing:.1em;
}
.nav-name{font-family:var(--display);letter-spacing:.16em;font-size:.95rem}
.nav-links{margin-left:auto;display:flex;gap:1.6rem}
.nav-links a{
  font-family:var(--caps);font-variant:small-caps;text-transform:lowercase;
  font-size:.82rem;letter-spacing:.22em;color:var(--faint);
}
.nav-links a{position:relative}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-4px;height:1px;
  background:var(--gilt-dim);transition:right .35s cubic-bezier(.2,.7,.2,1)}
.nav-links a:hover::after,.nav-links a:focus-visible::after{right:0}
.nav-links a:hover{color:var(--gilt)}
.tick-toggle{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--faint);background:none;border:1px solid var(--hairline);
  padding:.45rem .8rem;cursor:pointer;display:flex;align-items:center;gap:.5rem;
  transition:color .3s,border-color .3s;
}
.tick-toggle:hover{color:var(--gilt);border-color:var(--gilt-dim)}
.tick-dot{width:5px;height:5px;border-radius:50%;background:var(--faint);transition:background .3s}
.tick-toggle[aria-pressed="true"]{color:var(--gilt);border-color:var(--gilt-dim)}
.tick-toggle[aria-pressed="true"] .tick-dot{background:var(--garnet);box-shadow:0 0 6px var(--garnet)}

/* ——— movement stage ——— */
.movement{position:relative}
.stage{
  position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;
  background:radial-gradient(120% 90% at 50% 42%,var(--velvet-2) 0%,var(--velvet) 62%,#070605 100%);
}
#scene{position:absolute;inset:0;width:100%;height:100%;display:block}
.stage-vignette{
  position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(90% 75% at 50% 45%,transparent 55%,rgba(7,6,5,.75) 100%);
}
/* annotations pinned in 3D */
.anns{position:absolute;inset:0;pointer-events:none}
.ann{
  position:absolute;top:0;left:0;opacity:0;will-change:transform,opacity;
  transition:opacity .45s ease;
}
.ann-inner{display:flex;align-items:center;gap:.6rem;transform:translate(10px,-50%)}
.ann.flip .ann-inner{flex-direction:row-reverse;transform:translate(calc(-100% - 10px),-50%)}
.ann-dot{width:6px;height:6px;border-radius:50%;background:var(--garnet);
  outline:1px solid var(--gilt-dim);outline-offset:2px;flex:none}
.ann-line{width:34px;height:1px;background:linear-gradient(90deg,var(--gilt-dim),transparent);flex:none}
.ann.flip .ann-line{background:linear-gradient(-90deg,var(--gilt-dim),transparent)}
.ann-lbl{
  font-family:var(--caps);font-variant:small-caps;text-transform:lowercase;
  font-size:.86rem;letter-spacing:.2em;color:var(--gilt);white-space:nowrap;
  background:rgba(11,10,8,.74);border:1px solid rgba(217,197,138,.16);
  padding:.24rem .65rem .3rem;
}

/* ——— chapters ——— */
.chapters{position:relative;z-index:2;margin-top:-100vh;margin-top:-100svh;pointer-events:none}
.chapter{
  min-height:132vh;display:flex;align-items:center;
  padding:0 clamp(1.25rem,6vw,5rem);
}
.chapter .panel{pointer-events:auto}

.chapter-hero{
  min-height:100vh;min-height:100svh;flex-direction:column;justify-content:flex-end;
  align-items:center;text-align:center;padding-bottom:9vh;
}
.chapter-hero .eyebrow{color:var(--gilt-dim)}
.chapter-hero .eyebrow,.chapter-hero h1,.hero-sub{text-shadow:0 2px 18px rgba(7,6,5,.9),0 1px 4px rgba(7,6,5,.8)}
.chapter-hero h1{
  font-family:var(--display);font-weight:400;color:var(--silver);
  font-size:clamp(2.6rem,7.2vw,5.6rem);letter-spacing:.12em;line-height:1.05;
  text-transform:uppercase;
}
.chapter-hero .numero{color:var(--gilt)}
.hero-sub{
  font-size:clamp(1.02rem,1.4vw,1.2rem);max-width:34em;margin-top:1.3rem;color:var(--body);
}
.scroll-cue{
  margin-top:6vh;font-family:var(--caps);font-variant:small-caps;text-transform:lowercase;
  font-size:.85rem;letter-spacing:.3em;color:var(--faint);
  display:flex;flex-direction:column;align-items:center;gap:.9rem;
}
.cue-line{width:1px;height:52px;background:linear-gradient(var(--gilt-dim),transparent);display:block}
.js .cue-line{animation:cue 2.6s cubic-bezier(.6,0,.3,1) infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
@media (prefers-reduced-motion:reduce){.js .cue-line{animation:none}}

.panel{
  width:min(400px,100%);
  padding:2rem 2.2rem 2.1rem;
  background:linear-gradient(rgba(11,10,8,.9),rgba(11,10,8,.8));
  border:1px solid var(--hairline);
  backdrop-filter:blur(8px);
  box-shadow:0 30px 60px rgba(0,0,0,.35);
}
.chapter-right{justify-content:flex-end}
.ch-num{
  font-family:var(--caps);font-variant:small-caps;text-transform:lowercase;font-weight:600;
  font-size:.85rem;letter-spacing:.3em;color:var(--gilt);
  padding-bottom:.9rem;margin-bottom:1.1rem;border-bottom:1px solid var(--hairline);
}
.panel h2{
  font-family:var(--display);font-weight:400;color:var(--silver);
  font-size:1.45rem;letter-spacing:.04em;line-height:1.3;margin-bottom:.8rem;
}
.panel p{font-size:1rem;color:var(--body)}

/* ——— ribbon ——— */
.ribbon{
  border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);
  padding:2.2rem 0;overflow:hidden;background:var(--velvet);position:relative;z-index:3;
}
.ribbon-track{
  white-space:nowrap;font-family:var(--display);text-transform:uppercase;
  font-size:clamp(1.5rem,3.4vw,2.6rem);letter-spacing:.18em;color:var(--gilt);
  opacity:.6;will-change:transform;
}

/* ——— sections shared ——— */
.hand,.specs,.atelier,.edition{position:relative;z-index:3;background:var(--velvet)}
.hand{padding:clamp(5rem,10vw,8.5rem) 0 clamp(4rem,8vw,7rem)}

.hand-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.5rem,3vw,3rem);
  margin-top:2.5rem;
}
.hand-item{border-top:1px solid var(--hairline);padding-top:1.4rem}
.hand-item h3{
  font-family:var(--display);font-weight:400;color:var(--silver);font-size:1.2rem;
  letter-spacing:.12em;margin-bottom:.7rem;display:flex;align-items:center;gap:.65rem;
}
.gem{width:7px;height:7px;background:var(--garnet);transform:rotate(45deg);flex:none;
  box-shadow:0 0 0 1px rgba(217,197,138,.35)}
.hand-item p{font-size:.98rem;color:var(--body)}

/* ——— specs ——— */
.specs{padding:clamp(4rem,8vw,7rem) 0}
.specs .wrap{max-width:860px}
.specs-head{display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;margin-bottom:2.6rem}
.hallmark{width:96px;height:96px;color:var(--gilt);opacity:.85;flex:none}
.spec-table div{
  display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:baseline;
  padding:.85rem .2rem;border-bottom:1px solid var(--hairline);
}
.spec-table div:first-child{border-top:1px solid var(--hairline)}
.spec-table div{transition:background .3s,border-color .3s}
.spec-table div:hover{background:rgba(217,197,138,.045);border-bottom-color:rgba(217,197,138,.4)}
.spec-table div:hover dt{color:var(--gilt)}
.spec-table dt{
  font-family:var(--caps);font-variant:small-caps;text-transform:lowercase;
  font-size:.95rem;letter-spacing:.22em;color:var(--gilt-dim);
}
.spec-table dd{
  font-family:var(--mono);font-size:.92rem;letter-spacing:.03em;color:var(--silver);
  font-variant-numeric:tabular-nums;text-align:right;
}

/* ——— atelier ——— */
.atelier{padding:clamp(4rem,8vw,7rem) 0}
.atelier-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(2.5rem,6vw,5.5rem);align-items:start}
.atelier-copy p{margin-bottom:1.1rem;max-width:36em}
.atelier-facts{list-style:none;border-top:1px solid var(--hairline);margin-top:.4rem}
.atelier-facts li{transition:background .3s;
}
.atelier-facts li:hover{background:rgba(217,197,138,.04)}
.atelier-facts li{
  display:flex;justify-content:space-between;gap:1.5rem;align-items:baseline;
  padding:.8rem .1rem;border-bottom:1px solid var(--hairline);
  font-family:var(--mono);font-size:.85rem;color:var(--silver);
}
.atelier-facts li span{
  font-family:var(--caps);font-variant:small-caps;text-transform:lowercase;
  letter-spacing:.2em;font-size:.9rem;color:var(--gilt-dim);
}

/* ——— edition ——— */
.edition{padding:clamp(4rem,8vw,7rem) 0 clamp(5rem,9vw,8rem);text-align:center}
.edition .wrap{max-width:760px}
.edition-copy{max-width:38em;margin:0 auto 3rem}
.card{
  display:inline-block;padding:2.6rem clamp(1.8rem,6vw,4rem) 2.4rem;
  border:1px solid var(--gilt-dim);outline:1px solid var(--hairline);outline-offset:5px;
  background:linear-gradient(rgba(20,18,16,.6),rgba(11,10,8,.2));
}
.card-title{
  font-family:var(--display);letter-spacing:.3em;text-transform:uppercase;
  color:var(--gilt);font-size:.95rem;margin-bottom:1.4rem;
}
.card-addr{font-family:var(--serif);font-size:1.08rem;color:var(--silver);line-height:1.75}
.card-note{margin-top:1.4rem;font-style:italic;color:var(--faint);font-size:.95rem}

/* ——— footer ——— */
.footer{border-top:1px solid var(--hairline);padding:2.6rem 0 3rem;position:relative;z-index:3;background:var(--velvet)}
.footer-grid{display:flex;flex-direction:column;align-items:center;gap:.9rem;text-align:center}
.footer-mark{font-family:var(--display);color:var(--gilt);letter-spacing:.14em;
  border:1px solid var(--hairline);padding:.3rem .55rem;font-size:.9rem}
.footer-line{font-family:var(--caps);font-variant:small-caps;text-transform:lowercase;
  letter-spacing:.22em;font-size:.85rem;color:var(--faint)}
.credit{font-size:.85rem;color:rgba(239,237,232,.38)}
.credit a{color:rgba(217,197,138,.65)}
.credit a:hover{color:var(--gilt)}

/* ——— reveal ——— */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .9s cubic-bezier(.2,.6,.2,1),transform .9s cubic-bezier(.2,.6,.2,1)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  .ann{transition:none}
}

/* ——— responsive ——— */
@media (max-width:1024px){
  .nav-links{display:none}
}
@media (max-width:640px){
  body{font-size:1rem}
  .nav{gap:1rem;padding:.7rem 1rem}
  .nav-name{display:none}
  .chapter{min-height:118vh;padding:0 1.1rem;align-items:flex-end}
  .chapter .panel{margin:0 auto 9vh;width:100%}
  .chapter-right{justify-content:center}
  .panel{padding:1.5rem 1.4rem}
  .chapter-hero{padding-bottom:12vh}
  .hero-sub{font-size:1rem}
  .hand-grid{grid-template-columns:1fr;gap:2rem}
  .specs-head{flex-direction:row;align-items:center}
  .hallmark{width:72px;height:72px}
  .spec-table div{grid-template-columns:auto 1fr;gap:1rem}
  .atelier-grid{grid-template-columns:1fr}
  .ann-lbl{font-size:.72rem;letter-spacing:.13em;padding:.2rem .5rem .24rem}
  .ann-line{width:20px}
}