/* ============================================================
   YL.TIFFANY — Independent B2B site  ·  shared stylesheet
   Tokens lifted verbatim from the YL.TIFFANY design system,
   plus production layout / component CSS for the static pages.
   ============================================================ */
@import url("https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,500&family=Manrope:wght@300;400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap");

:root{
  /* Brand: Tiffany Blue */
  --tiffany-50:#ECFBF9;--tiffany-100:#D2F4F0;--tiffany-200:#A8E9E2;--tiffany-300:#71DBD3;
  --tiffany-400:#45C8BE;--tiffany-500:#25B0A6;--tiffany-600:#1A938B;--tiffany-700:#177570;
  --tiffany-800:#185C58;--tiffany-900:#154A47;
  /* Ink: warm graphite */
  --ink-950:#121110;--ink-900:#1A1918;--ink-800:#262422;--ink-700:#3A3835;--ink-600:#565350;
  --ink-500:#76726E;--ink-400:#9A9692;--ink-300:#C4C0BC;--ink-200:#E3E0DC;--ink-100:#F0EDEA;
  --ink-50:#F8F6F3;--white:#FFFFFF;
  /* Chrome */
  --chrome-light:#F4F6F7;--chrome:#C8CDD1;--chrome-mid:#A7AEB4;--chrome-dark:#7E868D;
  --chrome-gradient:linear-gradient(150deg,#F6F8F9 0%,#D5DADE 28%,#AEB5BB 55%,#E6EAEC 78%,#9CA3A9 100%);
  /* Semantic */
  --success-50:#E9F7EF;--success-500:#1F9D57;--success-700:#156E3D;
  --warning-500:#E08600;--danger-500:#D8453B;
  /* surfaces */
  --surface-page:var(--ink-50);--surface-card:var(--white);--surface-brand:var(--tiffany-300);
  --surface-brand-soft:var(--tiffany-50);--surface-ink:var(--ink-900);
  /* text */
  --text-strong:var(--ink-900);--text-body:var(--ink-700);--text-muted:var(--ink-500);
  --text-faint:var(--ink-400);--text-inverse:var(--white);--text-on-brand:var(--ink-900);
  --text-brand:var(--tiffany-700);--text-link:var(--tiffany-700);
  /* borders */
  --border-subtle:var(--ink-200);--border-default:var(--ink-300);
  --hairline:color-mix(in srgb,var(--ink-900) 10%,transparent);
  --focus-ring:color-mix(in srgb,var(--tiffany-500) 55%,transparent);

  /* fonts */
  --font-serif:"Cormorant Garamond","Times New Roman",Georgia,serif;
  --font-sans:"Manrope","Segoe UI",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --fw-light:300;--fw-regular:400;--fw-medium:500;--fw-semibold:600;--fw-bold:700;--fw-extrabold:800;
  --tracking-label:0.16em;

  /* spacing */
  --space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-7:32px;
  --space-8:40px;--space-9:48px;--space-10:64px;--space-11:80px;--space-12:96px;--space-13:128px;
  --container-lg:1120px;--container-xl:1320px;
  --gutter:clamp(20px,5vw,72px);
  --section-y:clamp(64px,9vw,120px);

  /* radii */
  --radius-xs:4px;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--radius-xl:26px;
  --radius-2xl:36px;--radius-pill:999px;

  /* shadows */
  --shadow-xs:0 1px 2px rgba(26,25,24,.06);
  --shadow-sm:0 2px 6px rgba(26,25,24,.06),0 1px 2px rgba(26,25,24,.05);
  --shadow-md:0 8px 24px rgba(26,25,24,.08),0 2px 6px rgba(26,25,24,.05);
  --shadow-lg:0 18px 48px rgba(26,25,24,.12),0 6px 14px rgba(26,25,24,.06);
  --shadow-xl:0 32px 80px rgba(26,25,24,.16),0 10px 24px rgba(26,25,24,.08);
  --shadow-brand:0 12px 32px rgba(37,176,166,.28);
  --bevel-chrome:inset 0 1px 0 rgba(255,255,255,.9),inset 0 -1px 0 rgba(0,0,0,.18),0 1px 3px rgba(26,25,24,.25);

  --ease-out:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;
  --ring:0 0 0 3px var(--focus-ring);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-sans);font-weight:var(--fw-regular);
  font-size:16px;line-height:1.65;color:var(--text-body);background:var(--white);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6{font-family:var(--font-sans);font-weight:var(--fw-bold);
  line-height:1.18;letter-spacing:-.02em;color:var(--text-strong);margin:0}
p{margin:0}
img{max-width:100%;display:block}
a{color:var(--text-link);text-decoration:none}
button{font-family:inherit}
::selection{background:var(--tiffany-300);color:var(--ink-900)}
*:focus-visible{outline:none;box-shadow:var(--ring);border-radius:var(--radius-xs)}

.yl-display{font-family:var(--font-serif);font-weight:var(--fw-semibold);
  line-height:1.05;letter-spacing:-.01em;color:var(--text-strong)}
.label{font-family:var(--font-mono);font-weight:var(--fw-medium);font-size:12px;
  letter-spacing:var(--tracking-label);text-transform:uppercase;color:var(--text-muted)}
.mono{font-family:var(--font-mono)}
.brand-text{color:var(--tiffany-700)}

/* ---------- layout ---------- */
.container{max-width:var(--container-xl);margin:0 auto;padding-inline:var(--gutter)}
.container-lg{max-width:var(--container-lg);margin:0 auto;padding-inline:var(--gutter)}
.section{padding-block:var(--section-y)}
.section-sm{padding-block:clamp(48px,6vw,80px)}
.eyebrow{font-family:var(--font-mono);font-weight:500;font-size:12px;
  letter-spacing:var(--tracking-label);text-transform:uppercase;color:var(--tiffany-700);
  display:block;margin-bottom:18px}
.lead{font-size:clamp(16px,1.4vw,18.5px);color:var(--text-muted);line-height:1.7}
.center{text-align:center}
.center .eyebrow{margin-inline:auto}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-sans);
  font-weight:var(--fw-semibold);font-size:15px;line-height:1;border:none;cursor:pointer;
  padding:15px 24px;border-radius:var(--radius-pill);transition:all var(--dur) var(--ease-out);
  white-space:nowrap}
.btn svg{width:17px;height:17px}
.btn-ink{background:var(--ink-900);color:var(--white)}
.btn-ink:hover{background:var(--ink-800);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-brand{background:var(--tiffany-300);color:var(--ink-900)}
.btn-brand:hover{background:var(--tiffany-400);transform:translateY(-1px);box-shadow:var(--shadow-brand)}
.btn-ghost{background:transparent;color:var(--ink-900);border:1.5px solid var(--border-default)}
.btn-ghost:hover{border-color:var(--ink-900);background:var(--ink-50)}
.btn-white{background:var(--white);color:var(--ink-900)}
.btn-white:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-sm{padding:11px 18px;font-size:14px}
.btn-lg{padding:18px 30px;font-size:16px}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--hairline)}
.nav{display:flex;align-items:center;gap:30px;height:74px}
.nav .logo{display:flex;align-items:center;height:30px;flex-shrink:0}
.nav .logo img{height:26px;width:auto}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-links a{color:var(--ink-800);font-weight:var(--fw-medium);font-size:15px;
  padding:9px 14px;border-radius:var(--radius-sm);transition:all var(--dur) var(--ease-out)}
.nav-links a:hover{background:var(--ink-50);color:var(--ink-900)}
.nav-links a.active{color:var(--tiffany-700)}
.nav-spacer{flex:1}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.lang{display:inline-flex;border:1px solid var(--border-default);border-radius:var(--radius-pill);
  overflow:hidden;font-family:var(--font-mono);font-size:11px;letter-spacing:.08em}
.lang a{padding:7px 11px;color:var(--ink-500)}
.lang a.on{background:var(--ink-900);color:var(--white)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;color:var(--ink-900)}
.nav-toggle svg{width:24px;height:24px}

/* mega dropdown */
.has-mega{position:relative}
.mega{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(8px);
  background:var(--white);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);
  box-shadow:var(--shadow-xl);padding:26px;width:min(760px,86vw);
  display:grid;grid-template-columns:1fr 1fr;gap:8px 32px;opacity:0;visibility:hidden;
  transition:all var(--dur) var(--ease-out);z-index:70}
.has-mega:hover .mega,.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega .mega-col h4{font-family:var(--font-mono);font-size:11px;letter-spacing:var(--tracking-label);
  text-transform:uppercase;color:var(--tiffany-700);margin-bottom:10px;font-weight:600}
.mega .mega-col a{display:flex;align-items:baseline;gap:10px;padding:8px 10px;border-radius:var(--radius-sm);
  color:var(--ink-700);font-size:14.5px;font-weight:500}
.mega .mega-col a:hover{background:var(--ink-50);color:var(--ink-900)}
.mega .mega-col a .m{font-family:var(--font-mono);font-size:11px;color:var(--text-faint)}

/* ---------- hero ---------- */
.hero{padding-block:clamp(56px,8vw,104px) clamp(48px,6vw,88px)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-family:var(--font-serif);font-weight:var(--fw-semibold);
  font-size:clamp(40px,5.2vw,74px);line-height:1.02;letter-spacing:-.01em;color:var(--ink-900)}
.hero p.lead{margin-top:24px;max-width:30em}
.hero-cta{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-stage{position:relative;aspect-ratio:1/1;border-radius:var(--radius-2xl);
  background:var(--surface-brand);display:flex;align-items:center;justify-content:center;overflow:hidden}
.hero-stage .big-num{position:absolute;top:18px;right:30px;font-family:var(--font-serif);
  font-weight:600;font-size:clamp(80px,9vw,128px);line-height:.9;
  color:color-mix(in srgb,var(--ink-900) 14%,transparent)}
.hero-stage .corner-label{position:absolute;top:26px;left:30px}
.hero-stage img{width:78%;object-fit:contain;filter:drop-shadow(0 30px 40px rgba(0,0,0,.28))}

/* ---------- stat band ---------- */
.statband{background:var(--ink-900);color:var(--white)}
.statband .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;
  padding-block:clamp(44px,5vw,64px)}
.stat .n{font-family:var(--font-serif);font-weight:600;font-size:clamp(38px,4vw,56px);
  line-height:1;color:var(--white)}
.stat .n small{font-size:.5em;color:var(--tiffany-300);margin-left:2px}
.stat .l{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-300);margin-top:12px}

/* ---------- generic grids & cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

.card{background:var(--white);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);
  padding:30px;transition:all var(--dur) var(--ease-out)}
.card:hover{box-shadow:var(--shadow-md);border-color:var(--border-default)}
.card .ico{width:46px;height:46px;border-radius:var(--radius-md);background:var(--tiffany-50);
  color:var(--tiffany-700);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.card .ico svg{width:22px;height:22px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{font-size:14.5px;color:var(--text-muted);line-height:1.6}

/* ---------- product card / placeholder ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.prod-card{background:var(--white);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;transition:all var(--dur) var(--ease-out)}
.prod-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:transparent}
.prod-media{aspect-ratio:1/1;background:var(--ink-50);display:flex;align-items:center;
  justify-content:center;position:relative;overflow:hidden}
.prod-media img{width:80%;height:80%;object-fit:contain;mix-blend-mode:multiply}
.prod-card:hover .prod-media img{transform:scale(1.04)}
.prod-media img{transition:transform var(--dur) var(--ease-out)}
.prod-badge{position:absolute;top:14px;left:14px;font-family:var(--font-mono);font-size:10px;
  letter-spacing:.1em;text-transform:uppercase;background:var(--ink-900);color:var(--white);
  padding:5px 9px;border-radius:var(--radius-pill);font-weight:500}
.prod-badge.brand{background:var(--tiffany-300);color:var(--ink-900)}
.prod-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:6px;flex:1}
.prod-cat{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--tiffany-700)}
.prod-name{font-size:16.5px;font-weight:var(--fw-bold);color:var(--ink-900);line-height:1.3}
.prod-model{font-family:var(--font-mono);font-size:12.5px;color:var(--text-faint)}
.prod-spec{font-size:13px;color:var(--text-muted);margin-top:2px}
.prod-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between}
.prod-foot .link{font-weight:var(--fw-semibold);font-size:14px;color:var(--ink-900);
  display:inline-flex;align-items:center;gap:6px}
.prod-card:hover .prod-foot .link{color:var(--tiffany-700)}

/* striped placeholder for missing product photos */
.ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  background:repeating-linear-gradient(135deg,var(--ink-100) 0 10px,var(--ink-50) 10px 20px);
  color:var(--ink-400);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  text-transform:uppercase;text-align:center;padding:14px}

/* ---------- category filter ---------- */
.filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.chip{font-family:var(--font-sans);font-weight:var(--fw-medium);font-size:14px;
  padding:9px 18px;border-radius:var(--radius-pill);border:1px solid var(--border-default);
  background:var(--white);color:var(--ink-700);cursor:pointer;transition:all var(--dur) var(--ease-out)}
.chip:hover{border-color:var(--ink-900)}
.chip.on{background:var(--ink-900);color:var(--white);border-color:var(--ink-900)}

/* ---------- specs table ---------- */
.specs{width:100%;border-collapse:collapse}
.specs tr{border-bottom:1px solid var(--border-subtle)}
.specs th{text-align:left;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--text-muted);font-weight:500;padding:14px 0;width:42%;vertical-align:top}
.specs td{padding:14px 0;color:var(--ink-900);font-weight:var(--fw-medium);font-size:15px}

/* ---------- reasons (why choose) ---------- */
.reason{display:flex;gap:20px;padding:28px 0;border-top:1px solid var(--border-subtle)}
.reason .num{font-family:var(--font-serif);font-weight:600;font-size:34px;color:var(--tiffany-400);
  line-height:1;flex-shrink:0;width:54px}
.reason h3{font-size:20px;margin-bottom:8px}
.reason p{color:var(--text-muted);font-size:15px;line-height:1.65}

/* ---------- forms ---------- */
.form-card{background:var(--white);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);
  padding:clamp(28px,4vw,44px);box-shadow:var(--shadow-md)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.span{grid-column:1/-1}
.field label{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text-muted);font-weight:500}
.field label .req{color:var(--danger-500)}
.field input,.field select,.field textarea{font-family:var(--font-sans);font-size:15px;
  color:var(--ink-900);background:var(--white);border:1px solid var(--border-default);
  border-radius:var(--radius-md);padding:13px 15px;transition:all var(--dur) var(--ease-out)}
.field textarea{resize:vertical;min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;
  border-color:var(--tiffany-500);box-shadow:0 0 0 3px var(--focus-ring)}
.field input::placeholder,.field textarea::placeholder{color:var(--text-faint)}

/* ---------- panels ---------- */
.panel-ink{background:var(--ink-900);color:var(--white);border-radius:var(--radius-2xl);
  padding:clamp(40px,6vw,72px)}
.panel-ink h2{color:var(--white)}
.panel-ink .lead{color:var(--ink-300)}
.panel-brand{background:var(--surface-brand);border-radius:var(--radius-2xl);
  padding:clamp(40px,6vw,72px)}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--text-muted);
  font-family:var(--font-mono);letter-spacing:.04em}
.crumb a{color:var(--text-muted)}.crumb a:hover{color:var(--ink-900)}
.crumb .sep{color:var(--border-default)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:var(--ink-300);padding-block:72px 36px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.foot-brand img{height:26px;margin-bottom:18px}
.foot-brand p{color:var(--ink-400);font-size:14px;line-height:1.7;max-width:30ch}
.foot-col h4{font-family:var(--font-mono);font-size:11px;letter-spacing:var(--tracking-label);
  text-transform:uppercase;color:var(--tiffany-300);margin-bottom:16px;font-weight:600}
.foot-col a{display:block;color:var(--ink-300);font-size:14.5px;padding:6px 0;transition:color var(--dur)}
.foot-col a:hover{color:var(--white)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  margin-top:54px;padding-top:28px;border-top:1px solid rgba(255,255,255,.1);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--ink-400)}
.foot-contact{font-size:14px;line-height:1.9;color:var(--ink-300)}
.foot-contact strong{color:var(--white);font-weight:var(--fw-semibold)}

/* ---------- misc ---------- */
.divider{height:1px;background:var(--border-subtle);border:0;margin:0}
.tag{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.08em;text-transform:uppercase;background:var(--tiffany-50);color:var(--tiffany-700);
  padding:6px 12px;border-radius:var(--radius-pill);font-weight:500}
.note{font-size:13px;color:var(--text-faint);font-family:var(--font-mono)}

/* ---------- responsive ---------- */
@media(max-width:1020px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-stage{max-width:440px}
  .prod-grid,.grid-4{grid-template-columns:repeat(2,1fr)}
  .statband .grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:760px){
  .nav-links,.lang{display:none}
  .nav-toggle{display:inline-flex}
  .nav.open .nav-links{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;
    align-items:stretch;background:var(--white);border-bottom:1px solid var(--border-subtle);
    padding:14px var(--gutter);gap:2px;box-shadow:var(--shadow-lg)}
  .nav.open .nav-links a{padding:13px 12px;border-radius:var(--radius-md)}
  .nav.open .mega{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;
    border:none;width:auto;padding:6px 0 6px 14px;grid-template-columns:1fr}
  .grid-3,.grid-2,.form-grid{grid-template-columns:1fr}
  .prod-grid,.grid-4{grid-template-columns:repeat(2,1fr);gap:14px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:460px){
  .prod-grid,.grid-4,.statband .grid,.foot-grid{grid-template-columns:1fr}
}