/* ============================================================
   GISCI — Fine Jewellery, Rome since 1946
   Prototype stylesheet · GBPLACE : UNDERSCORE
   Design language: monochrome editorial architecture,
   jewels are the only colour.
   ============================================================ */

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
ul{list-style:none}

/* ---------- Tokens ---------- */
:root{
  --ink:#0d0d0d;          /* near-black text */
  --ink-soft:#4a4642;      /* muted text */
  --paper:#ffffff;         /* dominant white */
  --stone:#f5f3ef;         /* warm off-white section */
  --line:#e4e0d8;          /* hairline */
  --line-dk:#c9c4ba;
  --gold:#9c7c4a;          /* single restrained accent */

  --f-display:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --f-sans:"Jost",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;

  --wrap:1280px;
  --gut:clamp(20px,5vw,72px);   /* page horizontal padding */
  --sp:clamp(72px,11vw,168px);  /* vertical section rhythm */

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- Base ---------- */
body{
  font-family:var(--f-sans);
  font-weight:300;
  color:var(--ink);
  background:var(--paper);
  line-height:1.7;
  font-size:16px;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* ---------- Typography ---------- */
.display{
  font-family:var(--f-display);
  font-weight:400;
  line-height:1.02;
  letter-spacing:-.01em;
}
h1,h2,h3{font-family:var(--f-display);font-weight:400;line-height:1.06;letter-spacing:-.01em}
.h-xl{font-size:clamp(3rem,8.2vw,7.2rem)}
.h-lg{font-size:clamp(2.4rem,5.4vw,4.4rem)}
.h-md{font-size:clamp(1.9rem,3.4vw,2.9rem)}
.h-sm{font-size:clamp(1.5rem,2.4vw,2rem)}
em,.it{font-style:italic}

.eyebrow{
  font-family:var(--f-sans);
  font-weight:400;
  font-size:.72rem;
  letter-spacing:.42em;
  text-transform:uppercase;
  color:var(--ink-soft);
}
.eyebrow--gold{color:var(--gold)}

.lede{
  font-family:var(--f-display);
  font-size:clamp(1.3rem,2.3vw,1.75rem);
  line-height:1.5;
  font-weight:400;
  color:var(--ink);
}
p{max-width:64ch}
p + p{margin-top:1.2em}
.measure{max-width:56ch}
.muted{color:var(--ink-soft)}

/* ---------- Layout ---------- */
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.wrap--narrow{max-width:940px}
.section{padding-block:var(--sp)}
.section--stone{background:var(--stone)}
.section--ink{background:var(--ink);color:var(--paper)}
.section--ink .muted{color:#a7a29a}
.section--ink .eyebrow{color:#b8b2a8}

.rule{height:1px;background:var(--line);border:0;margin:0}
.section--ink .rule{background:#2a2925}

.center{text-align:center}
.stack-sm>*+*{margin-top:1rem}
.stack>*+*{margin-top:1.6rem}
.stack-lg>*+*{margin-top:2.4rem}

/* section label with hairline */
.label-row{display:flex;align-items:center;gap:1.4rem;margin-bottom:2.8rem}
.label-row .eyebrow{white-space:nowrap}
.label-row::after{content:"";flex:1;height:1px;background:var(--line)}
.section--ink .label-row::after{background:#2a2925}

/* ---------- Buttons / links ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.75em;
  font-family:var(--f-sans);font-weight:400;
  font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;
  padding:1.05em 2.2em;
  border:1px solid var(--ink);
  transition:background .5s var(--ease),color .5s var(--ease);
}
.btn:hover{background:var(--ink);color:var(--paper)}
.section--ink .btn{border-color:#4a4843}
.section--ink .btn:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}

.link-u{
  position:relative;display:inline-block;
  font-family:var(--f-sans);font-weight:400;
  font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;
  padding-bottom:.5em;
}
.link-u::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:currentColor;transform:scaleX(1);transform-origin:right;
  transition:transform .55s var(--ease);
}
.link-u:hover::after{transform:scaleX(0);transform-origin:left}
.link-u .arw{display:inline-block;margin-left:.5em;transition:transform .45s var(--ease)}
.link-u:hover .arw{transform:translateX(5px)}

/* ---------- Header ---------- */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:clamp(16px,2vw,26px) var(--gut);
  background:rgba(255,255,255,0);
  transition:background .5s var(--ease),padding .5s var(--ease),box-shadow .5s var(--ease);
}
.site-head.is-solid{
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(140%) blur(8px);
  box-shadow:0 1px 0 var(--line);
  padding-block:14px;
}
/* when hero is dark, header text is white until scrolled */
.site-head.on-dark{color:var(--paper)}
.site-head.on-dark.is-solid{color:var(--ink)}

.brand{display:flex;flex-direction:column;line-height:1;gap:.28em}
.brand .name{
  font-family:var(--f-display);font-size:1.9rem;font-weight:500;
  letter-spacing:.06em;
}
.brand-logo{height:64px;width:auto;display:block;margin-left:-4px}
.brand .brand-logo + .sub{margin-top:0}
.brand .sub{
  font-family:var(--f-sans);font-size:.56rem;font-weight:400;
  letter-spacing:.48em;text-transform:uppercase;color:currentColor;opacity:.72;
  padding-left:.1em;
}

.nav{display:flex;align-items:center;gap:clamp(1.6rem,2.5vw,2.9rem)}
.nav a{
  font-family:var(--f-sans);font-weight:400;
  font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;
  position:relative;padding-bottom:.35em;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .45s var(--ease);
}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav a[aria-current="page"]{opacity:1}

.nav-toggle{display:none;flex-direction:column;gap:5px;width:30px;height:22px;justify-content:center}
.nav-toggle span{display:block;height:1.5px;background:currentColor;transition:transform .4s var(--ease),opacity .3s}

/* ---------- Hero (image, monochrome) ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:flex-end;
  color:var(--paper);overflow:hidden;
}
.hero__media{position:absolute;inset:0;z-index:0}
.hero__media img{
  width:100%;height:100%;object-fit:cover;
  filter:grayscale(100%) contrast(1.02) brightness(.92);
}
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,.32) 0%,rgba(0,0,0,.12) 34%,rgba(0,0,0,.66) 100%);
}
.hero__inner{position:relative;z-index:2;width:100%;padding-bottom:clamp(52px,9vh,120px)}
.hero__eyebrow{color:#fff;opacity:.9;margin-bottom:1.6rem}
.hero h1{color:#fff;max-width:16ch}
.hero__foot{
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:2rem;
  margin-top:2.6rem;
}
.hero__cap{font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;opacity:.82}
.scroll-cue{position:absolute;left:var(--gut);bottom:26px;z-index:2;
  font-size:.6rem;letter-spacing:.34em;text-transform:uppercase;opacity:.7;
  writing-mode:vertical-rl;transform:rotate(180deg)}

/* simple type hero variant (interior pages) */
.pagehead{padding-top:clamp(150px,20vh,240px);padding-bottom:var(--sp);position:relative}
.pagehead .eyebrow{margin-bottom:1.6rem}
.pagehead h1{max-width:18ch}
.pagehead .lede{margin-top:2rem;max-width:52ch}

/* ---------- Feature split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2.4rem,5vw,6rem);align-items:center}
.split--wide{grid-template-columns:1.05fr .95fr}
.split__media img{width:100%;aspect-ratio:4/5;object-fit:cover}
.split .figc{margin-top:.9rem;font-size:.68rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft)}

/* monochrome archive image */
.mono img{filter:grayscale(100%) contrast(1.03);transition:filter 1.1s var(--ease)}
.mono:hover img{filter:grayscale(0%) contrast(1)}

/* full-bleed band */
.band{position:relative;height:clamp(56vh,72vh,760px);overflow:hidden}
.band img{width:100%;height:100%;object-fit:cover;filter:grayscale(100%) contrast(1.04) brightness(.96)}
.band__cap{
  position:absolute;left:var(--gut);bottom:var(--gut);color:#fff;z-index:2;
  font-size:.72rem;letter-spacing:.26em;text-transform:uppercase;
}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.4),transparent 45%)}

/* ---------- Collections (icon grid) ---------- */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.cat{
  background:var(--paper);padding:clamp(2rem,4vw,3.4rem) 1.5rem;
  display:flex;flex-direction:column;align-items:center;gap:1.3rem;text-align:center;
  transition:background .5s var(--ease);
}
.cat:hover{background:var(--stone)}
.cat img{width:52px;height:52px;opacity:.85;transition:transform .6s var(--ease)}
.cat:hover img{transform:translateY(-4px)}
.cat .cn{font-family:var(--f-display);font-size:1.5rem}
.cat .cd{font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft)}

/* ---------- Pieces strip (colour jewels) ---------- */
.pieces{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1rem,2vw,1.6rem)}
.piece{position:relative}
.piece__img{aspect-ratio:1;overflow:hidden;background:var(--stone)}
.piece__img img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.piece:hover .piece__img img{transform:scale(1.05)}
.piece__meta{margin-top:1rem}
.piece__meta .pt{font-family:var(--f-display);font-size:1.3rem;line-height:1.15}
.piece__meta .ps{font-size:.64rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft);margin-top:.3em}

/* ---------- Stat / values row ---------- */
.vals{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(2rem,4vw,4rem)}
.val .vn{font-family:var(--f-display);font-size:clamp(2.6rem,4vw,3.6rem);line-height:1}
.val .vl{margin-top:.8rem;font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-soft)}
.section--ink .val .vl{color:#a7a29a}

/* ---------- Timeline ---------- */
.tl{display:grid;gap:0}
.tl__row{
  display:grid;grid-template-columns:180px 1fr;gap:clamp(1.6rem,4vw,4rem);
  padding-block:clamp(2rem,3.5vw,3rem);border-top:1px solid var(--line);
}
.tl__row:last-child{border-bottom:1px solid var(--line)}
.tl__yr{font-family:var(--f-display);font-size:clamp(2rem,3vw,2.8rem);color:var(--ink)}
.tl__yr .yc{display:block;font-family:var(--f-sans);font-size:.64rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);margin-top:.4em}
.tl__body h3{margin-bottom:.6rem}

/* ---------- Quote ---------- */
.pull{font-family:var(--f-display);font-size:clamp(1.8rem,3.6vw,3rem);line-height:1.28;max-width:20ch}
.pull .mk{color:var(--line-dk)}

/* ---------- Services list ---------- */
.svc{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.svc__item{background:var(--paper);padding:clamp(2rem,4vw,3.4rem)}
.svc__item .si{font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);margin-bottom:1.2rem}
.svc__item h3{margin-bottom:.9rem}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2.4rem,5vw,5rem)}
.info-block{border-top:1px solid var(--line);padding-top:1.4rem;margin-top:2rem}
.info-block .il{font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:.5rem}
.info-block .iv{font-family:var(--f-display);font-size:1.5rem;line-height:1.35}
.info-block a.iv:hover{color:var(--gold)}
.map-frame{width:100%;height:100%;min-height:420px;border:1px solid var(--line);filter:grayscale(100%) contrast(1.05)}

/* ---------- Form ---------- */
.form{display:grid;gap:1.6rem}
.field{display:flex;flex-direction:column;gap:.6rem}
.field label{font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-soft)}
.field input,.field textarea{
  font-family:var(--f-sans);font-weight:300;font-size:1rem;color:var(--ink);
  background:transparent;border:0;border-bottom:1px solid var(--line-dk);
  padding:.7em 0;transition:border-color .4s var(--ease);
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink)}
.field textarea{resize:vertical;min-height:90px}
.form .btn{justify-self:start;margin-top:.6rem}
.form__note{font-size:.72rem;color:var(--ink-soft);letter-spacing:.02em}
.hours{display:grid;gap:.5rem}
.hours .hrow{display:flex;justify-content:space-between;gap:2rem;padding-block:.55rem;border-bottom:1px solid var(--line)}
.hours .hrow span:first-child{color:var(--ink)}
.hours .hrow span:last-child{color:var(--ink-soft)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{
  font-family:var(--f-sans);font-size:.92rem;line-height:1.5;
  padding:1.1rem 1.3rem;margin-bottom:1.8rem;border:1px solid var(--line-dk);
}
.form-status--ok{border-color:var(--ink);background:var(--stone)}
.form-status--err{border-color:#b23b3b;color:#8a2b2b}
.form-status .fs-t{font-family:var(--f-display);font-size:1.3rem;display:block;margin-bottom:.2rem}

/* ---------- Footer ---------- */
.site-foot{background:var(--ink);color:#cfcabf;padding-block:clamp(56px,8vw,96px)}
.site-foot a:hover{color:#fff}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:clamp(2rem,4vw,4rem);align-items:start}
.foot-brand .name{font-family:var(--f-display);font-size:2.4rem;color:#fff;letter-spacing:.05em}
.foot-brand .brand-logo{height:88px;margin-left:-6px}
.foot-brand .sub{font-size:.58rem;letter-spacing:.46em;text-transform:uppercase;color:#8f8a80;margin-top:.6em}
.foot-brand p{color:#8f8a80;margin-top:1.6rem;font-size:.9rem;max-width:34ch}
.foot-col h4{font-family:var(--f-sans);font-weight:400;font-size:.66rem;letter-spacing:.26em;text-transform:uppercase;color:#8f8a80;margin-bottom:1.4rem}
.foot-col li+li{margin-top:.85rem}
.foot-col a,.foot-col span{font-size:.92rem;color:#cfcabf}
.foot-bot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;
  margin-top:clamp(3rem,6vw,5rem);padding-top:1.8rem;border-top:1px solid #2a2925;
  font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:#7d786f}

/* ---------- Reveal animation ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}.rv-d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .foot-top{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
  .pieces{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  .nav-toggle{display:flex;z-index:70}
  .nav{
    position:fixed;inset:0;background:var(--paper);color:var(--ink);
    flex-direction:column;justify-content:center;gap:2.2rem;
    transform:translateY(-100%);transition:transform .6s var(--ease);
  }
  .nav.open{transform:none}
  .nav a{font-size:1.05rem;letter-spacing:.24em}
  .site-head.menu-open .nav-toggle span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
  .site-head.menu-open .nav-toggle span:nth-child(2){opacity:0}
  .site-head.menu-open .nav-toggle span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
  .site-head.menu-open{color:var(--ink)}
  .split,.split--wide{grid-template-columns:1fr;gap:2.4rem}
  .split__media{order:-1}
  .contact-grid{grid-template-columns:1fr}
  .cats{grid-template-columns:repeat(2,1fr)}
  .tl__row{grid-template-columns:1fr;gap:1rem}
  .vals{grid-template-columns:1fr;gap:2.4rem;text-align:center}
}
@media (max-width:560px){
  .svc{grid-template-columns:1fr}
  .cats{grid-template-columns:1fr}
  .pieces{grid-template-columns:1fr 1fr}
  .brand .name{font-size:1.6rem}
  .brand-logo{height:50px}
  .hero__foot{flex-direction:column;align-items:flex-start;gap:1.4rem}
}