/* =========================================================
   STARSTORY — core stylesheet
   Monochrome / premium / "chrome & comet" system
   ========================================================= */

@font-face { font-display: swap; }

:root{
  /* ---- palette ---- */
  --black:        #050505;
  --black-soft:   #0c0c0d;
  --charcoal:     #141416;
  --charcoal-2:   #1c1c1f;
  --line:         #2a2a2e;
  --line-soft:    #1f1f22;
  --white:        #f7f7f4;
  --white-dim:    #cfcfcb;
  --chrome-1:     #e7e7e5;
  --chrome-2:     #9a9a97;
  --chrome-3:     #55555a;
  --muted:        #8b8b8f;

  /* product art tokens */
  --art-light:  #3c3c3f;
  --art-mid:    #232326;
  --art-dark:   #131315;
  --art-stroke: #8f8f92;
  --art-emblem: #f2f2ef;

  /* type */
  --f-display: 'Unbounded', system-ui, sans-serif;
  --f-body: 'Inter', system-ui, -apple-system, sans-serif;
  --f-mono: 'Space Mono', monospace;

  /* layout */
  --max: 1280px;
  --pad: clamp(20px, 4vw, 56px);
  --radius: 2px;

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

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
}

body{
  margin:0;
  background:var(--black);
  color:var(--white);
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{ font-family:var(--f-display); margin:0; font-weight:700; letter-spacing:-.01em; }

:focus-visible{ outline:2px solid var(--chrome-1); outline-offset:3px; }

.wrap{ max-width:var(--max); margin:0 auto; padding-inline:var(--pad); }

/* ---------------- Nav ---------------- */
.nav{
  position:fixed; inset-inline:0; top:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:18px var(--pad);
  background:linear-gradient(to bottom, rgba(5,5,5,.9), rgba(5,5,5,0));
  backdrop-filter:blur(6px);
  transition:background .3s var(--ease), border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.is-scrolled{
  background:rgba(6,6,7,.86);
  border-bottom:1px solid var(--line-soft);
}
.nav__brand{ display:flex; align-items:center; gap:10px; }
.nav__brand img{ height:28px; width:auto; }
.nav__brand span{ font-family:var(--f-display); font-size:15px; letter-spacing:.14em; }
.nav__links{ display:flex; gap:34px; align-items:center; }
.nav__links a{
  font-size:13px; letter-spacing:.06em; text-transform:uppercase; color:var(--white-dim);
  position:relative; padding-bottom:4px;
}
.nav__links a::after{
  content:''; position:absolute; left:0; bottom:0; height:1px; width:0;
  background:linear-gradient(90deg, transparent, var(--chrome-1));
  transition:width .35s var(--ease);
}
.nav__links a:hover, .nav__links a.active{ color:var(--white); }
.nav__links a:hover::after, .nav__links a.active::after{ width:100%; }

.nav__actions{ display:flex; align-items:center; gap:18px; }
.cart-btn{
  position:relative; display:flex; align-items:center; gap:8px;
  background:transparent; border:1px solid var(--line); color:var(--white);
  padding:8px 14px; border-radius:var(--radius); font-size:12px; letter-spacing:.08em; text-transform:uppercase;
  transition:border-color .25s, background .25s;
}
.cart-btn:hover{ border-color:var(--chrome-2); background:var(--charcoal); }
.cart-count{
  background:var(--white); color:var(--black); font-family:var(--f-mono);
  font-size:11px; min-width:18px; height:18px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; padding:0 3px;
}
.nav__burger{ display:none; background:none; border:none; color:var(--white); }

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-family:var(--f-mono); font-size:13px; letter-spacing:.05em; text-transform:uppercase;
  padding:15px 30px; border-radius:var(--radius); border:1px solid transparent;
  transition:transform .2s var(--ease), box-shadow .2s var(--ease), background .2s;
  transform-style:preserve-3d;
}
.btn-primary{
  background:linear-gradient(180deg, var(--chrome-1), #cfcfcb 55%, #b9b9b5);
  color:var(--black);
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset, 0 10px 24px -10px rgba(0,0,0,.7);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 1px 0 rgba(255,255,255,.6) inset, 0 16px 30px -10px rgba(0,0,0,.8); }
.btn-primary:active{ transform:translateY(0); }
.btn-ghost{
  background:transparent; color:var(--white); border-color:var(--line);
}
.btn-ghost:hover{ border-color:var(--chrome-2); background:var(--charcoal); }
.btn:disabled{ opacity:.4; cursor:not-allowed; }
.btn-full{ width:100%; }

/* ---------------- Hero ---------------- */
.hero{
  position:relative; min-height:100svh; display:flex; flex-direction:column;
  align-items:center; justify-content:center; text-align:center;
  padding-top:120px; overflow:hidden;
  background:
    radial-gradient(60% 50% at 50% 18%, rgba(255,255,255,.06), transparent 70%),
    var(--black);
}
.hero__trail{ position:absolute; inset:0; width:100%; height:100%; z-index:0; opacity:.9; }
.hero__eyebrow{
  font-family:var(--f-mono); font-size:12px; letter-spacing:.28em; text-transform:uppercase;
  color:var(--muted); margin-bottom:22px; z-index:2; position:relative;
}
.hero h1{
  font-size:clamp(52px, 11vw, 148px); line-height:.92; z-index:2; position:relative;
  background:linear-gradient(180deg, #ffffff 0%, #e9e9e6 40%, #9a9a97 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
  text-shadow:0 2px 40px rgba(255,255,255,.08);
}
.hero p{
  max-width:520px; margin:26px auto 0; color:var(--white-dim); font-size:17px; z-index:2; position:relative;
}
.hero__cta{ margin-top:40px; display:flex; gap:16px; z-index:2; position:relative; }
.hero__scroll{
  position:absolute; bottom:36px; left:50%; transform:translateX(-50%);
  font-family:var(--f-mono); font-size:11px; letter-spacing:.2em; color:var(--muted);
  display:flex; flex-direction:column; align-items:center; gap:8px; z-index:2;
}
.hero__scroll::after{
  content:''; width:1px; height:34px; background:linear-gradient(var(--chrome-2), transparent);
  animation:scrolldown 1.8s infinite var(--ease);
}
@keyframes scrolldown{ 0%{ transform:scaleY(0); transform-origin:top;} 50%{ transform:scaleY(1); transform-origin:top;} 51%{transform-origin:bottom;} 100%{ transform:scaleY(0); transform-origin:bottom;} }

/* ---------------- Section shell ---------------- */
.section{ padding:110px 0; position:relative; }
.section--tight{ padding:70px 0; }
.section__head{ display:flex; align-items:flex-end; justify-content:space-between; gap:24px; margin-bottom:56px; flex-wrap:wrap; }
.section__label{ font-family:var(--f-mono); font-size:12px; letter-spacing:.2em; text-transform:uppercase; color:var(--muted); }
.section__title{ font-size:clamp(30px,4vw,48px); margin-top:10px; }
.section__link{ font-family:var(--f-mono); font-size:12px; letter-spacing:.08em; text-transform:uppercase; border-bottom:1px solid var(--line); padding-bottom:4px; }
.section__link:hover{ border-color:var(--white); }

.divider{ position:relative; height:64px; }
.divider svg{ position:absolute; left:0; top:50%; transform:translateY(-50%); width:100%; height:auto; opacity:.35; }

/* ---------------- Product grid & cards ---------------- */
.grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(260px,1fr)); gap:28px; }
.card{
  background:linear-gradient(180deg, var(--charcoal-2), var(--charcoal));
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  padding:26px 22px 22px;
  perspective:900px;
  position:relative;
  overflow:hidden;
  transition:border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.card::before{
  content:''; position:absolute; inset:0;
  background:radial-gradient(120% 60% at 50% -10%, rgba(255,255,255,.08), transparent 60%);
  pointer-events:none;
}
.card:hover{ border-color:var(--chrome-3); box-shadow:0 30px 60px -30px rgba(0,0,0,.8); transform:translateY(-4px); }
.card__art-wrap{ aspect-ratio:4/4.6; display:flex; align-items:center; justify-content:center; margin-bottom:18px; transition:transform .45s var(--ease); }
.card:hover .card__art-wrap{ transform:rotateY(6deg) rotateX(3deg) scale(1.03); }
.product-art{ width:70%; height:auto; filter:drop-shadow(0 18px 22px rgba(0,0,0,.55)); }
.card__tag{ font-family:var(--f-mono); font-size:10.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin-bottom:8px; }
.card__title{ font-family:var(--f-display); font-size:16px; margin-bottom:8px; }
.card__price{ font-family:var(--f-mono); font-size:14px; color:var(--chrome-1); }
.card__cta{ margin-top:16px; }

.badge{
  position:absolute; top:16px; right:16px; z-index:2;
  font-family:var(--f-mono); font-size:10px; letter-spacing:.1em; text-transform:uppercase;
  padding:4px 9px; border:1px solid var(--line); border-radius:20px; color:var(--white-dim);
}

/* ---------------- Filters ---------------- */
.filters{ display:flex; gap:10px; flex-wrap:wrap; }
.filter-btn{
  background:transparent; border:1px solid var(--line); color:var(--white-dim);
  padding:9px 18px; border-radius:20px; font-family:var(--f-mono); font-size:12px; letter-spacing:.06em; text-transform:uppercase;
  transition:all .25s var(--ease);
}
.filter-btn:hover{ color:var(--white); border-color:var(--chrome-2); }
.filter-btn.active{ background:var(--white); color:var(--black); border-color:var(--white); }

/* ---------------- Marquee ---------------- */
.marquee{ border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft); padding:22px 0; overflow:hidden; white-space:nowrap; }
.marquee__track{ display:inline-flex; gap:48px; animation:marquee 26s linear infinite; }
.marquee__track span{ font-family:var(--f-display); font-size:20px; color:var(--chrome-3); letter-spacing:.02em; }
@keyframes marquee{ from{ transform:translateX(0);} to{ transform:translateX(-50%);} }

/* ---------------- Story / split ---------------- */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
.split__visual{ aspect-ratio:1/1; border:1px solid var(--line-soft); border-radius:var(--radius); display:flex; align-items:center; justify-content:center; background:radial-gradient(80% 80% at 50% 40%, rgba(255,255,255,.05), transparent 70%); }
.split__visual svg{ width:60%; }
.split h3{ font-size:clamp(26px,3vw,38px); margin-bottom:20px; }
.split p{ color:var(--white-dim); max-width:44ch; }
.stat-row{ display:flex; gap:40px; margin-top:36px; }
.stat b{ display:block; font-family:var(--f-display); font-size:28px; }
.stat span{ font-family:var(--f-mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); }

/* ---------------- USP row ---------------- */
.usp-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-soft); border:1px solid var(--line-soft); }
.usp{ background:var(--black); padding:44px 34px; }
.usp svg{ width:30px; height:30px; margin-bottom:22px; color:var(--chrome-1); }
.usp h4{ font-size:16px; margin-bottom:10px; }
.usp p{ color:var(--muted); font-size:14px; margin:0; }

/* ---------------- Newsletter / footer ---------------- */
.footer{ border-top:1px solid var(--line-soft); padding:70px 0 30px; }
.footer__top{ display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; margin-bottom:60px; }
.footer__brand{ max-width:340px; }
.footer__brand img{ height:30px; margin-bottom:16px; }
.footer__brand p{ color:var(--muted); font-size:14px; }
.footer__cols{ display:flex; gap:70px; flex-wrap:wrap; }
.footer__col h5{ font-family:var(--f-mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin-bottom:18px; }
.footer__col a{ display:block; font-size:14px; color:var(--white-dim); margin-bottom:12px; }
.footer__col a:hover{ color:var(--white); }
.newsletter{ display:flex; gap:0; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; max-width:360px; }
.newsletter input{ flex:1; background:transparent; border:none; color:var(--white); padding:13px 16px; font-family:var(--f-body); font-size:14px; }
.newsletter input:focus{ outline:none; }
.newsletter button{ background:var(--white); color:var(--black); border:none; padding:0 18px; font-family:var(--f-mono); font-size:12px; letter-spacing:.06em; text-transform:uppercase; }
.footer__bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:26px; border-top:1px solid var(--line-soft); flex-wrap:wrap; gap:14px; }
.footer__bottom p{ color:var(--muted); font-size:12.5px; margin:0; }
.footer__social{ display:flex; gap:16px; }
.footer__social a{ color:var(--muted); }
.footer__social a:hover{ color:var(--white); }

/* ---------------- Page header (shop/about/contact) ---------------- */
.page-head{ padding:150px 0 50px; border-bottom:1px solid var(--line-soft); }
.page-head__label{ font-family:var(--f-mono); font-size:12px; letter-spacing:.2em; text-transform:uppercase; color:var(--muted); }
.page-head h1{ font-size:clamp(38px,6vw,72px); margin-top:14px; }
.page-head p{ color:var(--white-dim); max-width:60ch; margin-top:18px; }

/* ---------------- Product detail ---------------- */
.pdp{ display:grid; grid-template-columns:1.1fr 1fr; gap:70px; padding-top:140px; }
.pdp__art{ position:sticky; top:110px; align-self:start; aspect-ratio:1/1.05; border:1px solid var(--line-soft); border-radius:var(--radius); display:flex; align-items:center; justify-content:center; background:radial-gradient(80% 70% at 50% 30%, rgba(255,255,255,.06), transparent 70%); perspective:1000px; }
.pdp__art .product-art{ width:56%; transition:transform .5s var(--ease); filter:drop-shadow(0 30px 34px rgba(0,0,0,.6)); }
.pdp__art:hover .product-art{ transform:rotateY(-8deg) rotateX(4deg) scale(1.04); }
.pdp__info__eyebrow{ font-family:var(--f-mono); font-size:12px; letter-spacing:.16em; text-transform:uppercase; color:var(--muted); margin-bottom:14px; }
.pdp__info h1{ font-size:clamp(30px,4vw,44px); margin-bottom:16px; }
.pdp__price{ font-family:var(--f-mono); font-size:22px; color:var(--chrome-1); margin-bottom:26px; }
.pdp__desc{ color:var(--white-dim); margin-bottom:32px; max-width:52ch; }
.field-label{ font-family:var(--f-mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin-bottom:12px; display:block; }
.size-row{ display:flex; gap:10px; margin-bottom:30px; }
.size-btn{ width:48px; height:48px; border:1px solid var(--line); background:transparent; color:var(--white); border-radius:var(--radius); font-family:var(--f-mono); font-size:13px; transition:all .2s; }
.size-btn:hover{ border-color:var(--chrome-2); }
.size-btn.active{ background:var(--white); color:var(--black); border-color:var(--white); }
.qty-row{ display:flex; align-items:center; gap:16px; margin-bottom:30px; }
.qty-control{ display:flex; align-items:center; border:1px solid var(--line); border-radius:var(--radius); }
.qty-control button{ background:none; border:none; color:var(--white); width:40px; height:44px; font-size:16px; }
.qty-control span{ width:36px; text-align:center; font-family:var(--f-mono); }
.pdp__actions{ display:flex; gap:14px; margin-bottom:36px; }
.accordion{ border-top:1px solid var(--line-soft); }
.accordion__item{ border-bottom:1px solid var(--line-soft); }
.accordion__head{ width:100%; background:none; border:none; color:var(--white); display:flex; justify-content:space-between; align-items:center; padding:18px 0; font-family:var(--f-display); font-size:14px; letter-spacing:.02em; }
.accordion__body{ max-height:0; overflow:hidden; transition:max-height .3s var(--ease); color:var(--muted); font-size:14px; }
.accordion__body p{ padding-bottom:18px; margin:0; }
.accordion__item.open .accordion__body{ max-height:200px; }
.accordion__item.open .accordion__head .plus{ transform:rotate(45deg); }
.plus{ transition:transform .25s var(--ease); font-size:18px; }

/* ---------------- Cart ---------------- */
.cart-page{ padding-top:150px; }
.cart-layout{ display:grid; grid-template-columns:1.6fr 1fr; gap:60px; align-items:start; }
.cart-item{ display:grid; grid-template-columns:90px 1fr auto; gap:20px; align-items:center; padding:22px 0; border-bottom:1px solid var(--line-soft); }
.cart-item__art{ background:var(--charcoal); border:1px solid var(--line-soft); border-radius:var(--radius); display:flex; align-items:center; justify-content:center; aspect-ratio:1/1; }
.cart-item__art .product-art{ width:70%; }
.cart-item__name{ font-family:var(--f-display); font-size:15px; margin-bottom:6px; }
.cart-item__meta{ font-family:var(--f-mono); font-size:12px; color:var(--muted); margin-bottom:12px; }
.cart-item__remove{ background:none; border:none; color:var(--muted); font-family:var(--f-mono); font-size:11px; letter-spacing:.06em; text-transform:uppercase; text-decoration:underline; padding:0; }
.cart-item__price{ font-family:var(--f-mono); text-align:right; }
.summary{ background:var(--charcoal); border:1px solid var(--line-soft); border-radius:var(--radius); padding:30px; position:sticky; top:120px; }
.summary h3{ font-size:16px; margin-bottom:22px; }
.summary-row{ display:flex; justify-content:space-between; font-size:14px; color:var(--white-dim); margin-bottom:14px; }
.summary-row.total{ color:var(--white); font-family:var(--f-mono); font-size:17px; padding-top:14px; border-top:1px solid var(--line-soft); margin-top:8px; }
.empty-state{ text-align:center; padding:100px 0; color:var(--muted); }
.empty-state h3{ color:var(--white); margin-bottom:12px; font-size:22px; }

/* ---------------- Forms (contact/checkout) ---------------- */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.form-field{ margin-bottom:20px; grid-column: span 2; }
.form-field.half{ grid-column: span 1; }
.form-field label{ font-family:var(--f-mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); display:block; margin-bottom:10px; }
.form-field input, .form-field textarea{
  width:100%; background:var(--charcoal); border:1px solid var(--line); color:var(--white);
  padding:14px 16px; border-radius:var(--radius); font-family:var(--f-body); font-size:14px;
}
.form-field input:focus, .form-field textarea:focus{ outline:none; border-color:var(--chrome-2); }
.form-field textarea{ resize:vertical; min-height:120px; }

/* ---------------- Toast ---------------- */
.toast{
  position:fixed; bottom:30px; left:50%; transform:translateX(-50%) translateY(20px);
  background:var(--white); color:var(--black); padding:14px 24px; border-radius:var(--radius);
  font-family:var(--f-mono); font-size:13px; letter-spacing:.03em; z-index:200;
  opacity:0; pointer-events:none; transition:opacity .3s var(--ease), transform .3s var(--ease);
}
.toast.show{ opacity:1; transform:translateX(-50%) translateY(0); }

/* ---------------- Reveal on scroll ---------------- */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in{ opacity:1; transform:translateY(0); }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px){
  .nav__links{ position:fixed; inset:0 0 0 auto; width:min(320px,80vw); height:100svh; background:var(--black-soft); border-left:1px solid var(--line); flex-direction:column; justify-content:center; align-items:flex-start; padding:40px; gap:26px; transform:translateX(100%); transition:transform .35s var(--ease); }
  .nav__links.open{ transform:translateX(0); }
  .nav__burger{ display:block; }
  .split{ grid-template-columns:1fr; gap:40px; }
  .usp-grid{ grid-template-columns:1fr; }
  .pdp{ grid-template-columns:1fr; gap:36px; padding-top:120px; }
  .pdp__art{ position:relative; top:0; }
  .cart-layout{ grid-template-columns:1fr; }
  .form-field.half{ grid-column:span 2; }
  .footer__top{ flex-direction:column; }
}
@media (max-width:520px){
  .hero__cta{ flex-direction:column; width:100%; }
  .cart-item{ grid-template-columns:70px 1fr; }
  .cart-item__price{ grid-column:2; text-align:left; }
}