/* ============================================================
   JINMAN PAPER SUPPLIES — B2B Napkin Trade Site
   Design System & Global Styles
   Palette: warm ivory · deep forest-ink · sage accent · soft gold
   ============================================================ */

:root {
  /* Color tokens */
  --paper:           #FAF8F3;   /* warm ivory page background */
  --paper-2:       #F3EFE7;   /* slightly deeper panel */
  --surface:      #FFFFFF;
  --ink:          #232B25;   /* deep forest-charcoal text */
  --ink-soft:     #5A655C;   /* muted body text */
  --ink-faint:    #8A938A;   /* captions, meta */
  --accent:       #8C9A7E;   /* sage green */
  --accent-deep:  #6E7C61;
  --accent-soft:  #E7ECE0;   /* sage tint wash */
  --gold:         #C2A36B;   /* subtle luxe accent */
  --line:         #E6E1D6;   /* warm hairline border */
  --line-strong:  #D8D2C4;
  --danger:       #B4553F;
  --ok:           #6E7C61;

  /* Typography */
  --font-display: "Cormorant Garamond", "Times New Roman", serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Geometry */
  --radius:   4px;
  --radius-lg:10px;
  --maxw:     1240px;
  --gap:      24px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(35,43,37,.05), 0 2px 8px rgba(35,43,37,.04);
  --shadow-md: 0 6px 24px rgba(35,43,37,.08);
  --shadow-lg: 0 18px 50px rgba(35,43,37,.12);

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

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; color: var(--ink); margin: 0; letter-spacing: .2px; }
p { margin: 0 0 1.1em; }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section { padding: 110px 0; }
.section--tight { padding: 78px 0; }
.section--alt { background: var(--paper-2); }
.section--surface { background: var(--surface); }
.lead { font-size: 1.12rem; color: var(--ink-soft); max-width: 60ch; }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }

/* Eyebrow / small caps label */
.eyebrow {
  font-size: .74rem; letter-spacing: .26em; text-transform: uppercase;
  color: var(--accent-deep); font-weight: 600; margin: 0 0 14px;
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--accent); display: inline-block; }
.center .eyebrow::before { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 30px; border-radius: var(--radius); border: 1px solid transparent;
  font-size: .92rem; font-weight: 600; letter-spacing: .02em;
  transition: transform .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease), color .25s var(--ease);
  white-space: nowrap;
}
.btn--primary { background: var(--accent-deep); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--ink); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--ink); background: var(--surface); }
.btn--gold { background: var(--gold); color: #fff; }
.btn--gold:hover { background: #b08f56; transform: translateY(-2px); }
.btn--block { width: 100%; }
.btn--lg { padding: 17px 38px; font-size: .98rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250,248,243,.82);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s, box-shadow .3s;
}
.site-header.is-scrolled { border-color: var(--line); background: rgba(250,248,243,.94); box-shadow: var(--shadow-sm); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark { width: 38px; height: 38px; flex: none; }
.brand__name { font-family: var(--font-display); font-size: 1.42rem; font-weight: 700; letter-spacing: .04em; line-height: 1; }
.brand__name small { display: block; font-family: var(--font-body); font-size: .58rem; letter-spacing: .34em; text-transform: uppercase; color: var(--ink-faint); font-weight: 600; margin-top: 4px; }
.nav__links { display: flex; align-items: center; gap: 34px; }
.nav__links a { font-size: .92rem; font-weight: 500; color: var(--ink-soft); position: relative; padding: 6px 0; transition: color .2s; }
.nav__links a::after { content: ""; position: absolute; left: 0; bottom: 0; height: 1.5px; width: 0; background: var(--accent-deep); transition: width .3s var(--ease); }
.nav__links a:hover, .nav__links a.is-active { color: var(--ink); }
.nav__links a:hover::after, .nav__links a.is-active::after { width: 100%; }
.nav__cta { display: flex; align-items: center; gap: 14px; }
.nav__toggle { display: none; background: none; border: 0; padding: 8px; }
.nav__toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: .3s; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero__inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; padding: 96px 0 104px; }
.hero__title { font-size: clamp(2.6rem, 5.4vw, 4.5rem); line-height: 1.04; margin-bottom: 22px; }
.hero__title em { font-style: italic; color: var(--accent-deep); }
.hero__sub { font-size: 1.12rem; color: var(--ink-soft); max-width: 52ch; margin-bottom: 34px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__stats { display: flex; gap: 38px; margin-top: 52px; flex-wrap: wrap; }
.hero__stat b { font-family: var(--font-display); font-size: 2rem; display: block; line-height: 1; }
.hero__stat span { font-size: .8rem; color: var(--ink-faint); letter-spacing: .04em; }
.hero__visual { position: relative; }
.hero__card { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); background: var(--surface); }
.hero__card img, .hero__card svg { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero__badge { position: absolute; left: -18px; bottom: 28px; background: var(--surface); padding: 16px 22px; border-radius: var(--radius); box-shadow: var(--shadow-md); border: 1px solid var(--line); }
.hero__badge b { font-family: var(--font-display); font-size: 1.4rem; display: block; }
.hero__badge span { font-size: .76rem; color: var(--ink-faint); letter-spacing: .05em; }
.hero__deco { position: absolute; right: -60px; top: -40px; width: 220px; height: 220px; border-radius: 50%; background: radial-gradient(circle at 30% 30%, var(--accent-soft), transparent 70%); z-index: -1; }

/* ---------- Section heading ---------- */
.sec-head { max-width: 720px; margin-bottom: 54px; }
.sec-head h2 { font-size: clamp(2rem, 3.6vw, 3rem); margin-bottom: 16px; }
.sec-head p { color: var(--ink-soft); font-size: 1.05rem; }
.center .sec-head { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Product grid ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.product-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s; display: flex; flex-direction: column; }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--line-strong); }
.product-card__media { position: relative; aspect-ratio: 4/3; background: var(--paper-2); overflow: hidden; }
.product-card__media img, .product-card__media svg { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.product-card:hover .product-card__media img, .product-card:hover .product-card__media svg { transform: scale(1.05); }
.product-card__tags { position: absolute; top: 14px; left: 14px; display: flex; gap: 8px; }
.tag { font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 700; padding: 5px 11px; border-radius: 100px; }
.tag--stock { background: var(--accent-soft); color: var(--accent-deep); }
.tag--custom { background: #F3EAD6; color: #9a7b3e; }
.tag--new { background: var(--ink); color: #fff; }
.product-card__body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.product-card__cat { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 8px; }
.product-card__title { font-size: 1.32rem; line-height: 1.18; margin-bottom: 10px; }
.product-card__desc { font-size: .9rem; color: var(--ink-soft); margin-bottom: 16px; flex: 1; }
.product-card__meta { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 16px; margin-top: auto; }
.product-card__moq { font-size: .8rem; color: var(--ink-faint); }
.product-card__moq b { color: var(--ink); font-weight: 600; }
.product-card__price { font-family: var(--font-display); font-size: 1.2rem; color: var(--accent-deep); }
.product-card__price small { font-family: var(--font-body); font-size: .66rem; color: var(--ink-faint); display: block; text-align: right; letter-spacing: .04em; }

/* ---------- Category chips / filters ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }
.chip { border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink-soft); padding: 9px 18px; border-radius: 100px; font-size: .85rem; font-weight: 500; transition: .2s; }
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- Feature / benefit grid ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px 30px; transition: .3s; }
.feature:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.feature__ico { width: 46px; height: 46px; border-radius: 12px; background: var(--accent-soft); display: grid; place-items: center; margin-bottom: 20px; color: var(--accent-deep); }
.feature h3 { font-size: 1.32rem; margin-bottom: 10px; }
.feature p { font-size: .92rem; color: var(--ink-soft); margin: 0; }

/* ---------- Split feature (image + text) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split--reverse .split__media { order: 2; }
.split__media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.split__media svg, .split__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.split h2 { font-size: clamp(1.9rem, 3vw, 2.7rem); margin-bottom: 18px; }
.split p { color: var(--ink-soft); }
.checklist { margin-top: 26px; display: grid; gap: 14px; }
.checklist li { display: flex; gap: 14px; align-items: flex-start; }
.checklist .ico { flex: none; width: 24px; height: 24px; border-radius: 50%; background: var(--accent-soft); color: var(--accent-deep); display: grid; place-items: center; margin-top: 2px; }
.checklist b { display: block; font-weight: 600; }
.checklist span { font-size: .9rem; color: var(--ink-soft); }

/* ---------- Process steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; padding-top: 26px; border-top: 2px solid var(--line); }
.step::before { counter-increment: step; content: "0" counter(step); font-family: var(--font-display); font-size: 1.5rem; color: var(--accent); position: absolute; top: -2px; left: 0; background: var(--paper); padding-right: 10px; }
.step h4 { font-size: 1.18rem; margin: 8px 0 8px; }
.step p { font-size: .88rem; color: var(--ink-soft); margin: 0; }

/* ---------- Testimonials ---------- */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quote { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px 30px; display: flex; flex-direction: column; }
.quote__text { font-family: var(--font-display); font-size: 1.18rem; line-height: 1.5; color: var(--ink); margin-bottom: 20px; }
.quote__by { font-size: .82rem; color: var(--ink-faint); letter-spacing: .04em; margin-top: auto; }
.quote__by b { color: var(--ink); display: block; font-family: var(--font-body); font-size: .92rem; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--ink); color: #fff; border-radius: var(--radius-lg); padding: 64px 56px; display: grid; grid-template-columns: 1.3fr auto; gap: 40px; align-items: center; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; right: -80px; top: -80px; width: 280px; height: 280px; border-radius: 50%; background: radial-gradient(circle, rgba(194,163,107,.25), transparent 70%); }
.cta-band h2 { color: #fff; font-size: clamp(1.8rem, 3vw, 2.6rem); margin-bottom: 10px; }
.cta-band p { color: rgba(255,255,255,.74); margin: 0; }

/* ---------- Forms ---------- */
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .82rem; font-weight: 600; letter-spacing: .03em; margin-bottom: 8px; color: var(--ink); }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 15px; border: 1px solid var(--line-strong); border-radius: var(--radius);
  font-family: inherit; font-size: .95rem; color: var(--ink); background: var(--surface);
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field textarea { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: .82rem; color: var(--ink-faint); margin-top: 8px; }
.form-status { padding: 14px 16px; border-radius: var(--radius); font-size: .9rem; margin-top: 14px; display: none; }
.form-status.ok { display: block; background: var(--accent-soft); color: var(--accent-deep); border: 1px solid #cfd9c2; }
.form-status.err { display: block; background: #f7e9e4; color: var(--danger); border: 1px solid #eccfc4; }

/* Contact layout */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.info-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px 32px; }
.info-row { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.info-row:last-child { border-bottom: 0; }
.info-row .ico { flex: none; width: 42px; height: 42px; border-radius: 10px; background: var(--accent-soft); color: var(--accent-deep); display: grid; place-items: center; }
.info-row b { display: block; font-size: .95rem; }
.info-row span { font-size: .88rem; color: var(--ink-soft); }
.info-row a:hover { color: var(--accent-deep); }

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: .8rem; color: var(--ink-faint); padding: 22px 0 0; }
.breadcrumb a:hover { color: var(--accent-deep); }
.breadcrumb span { margin: 0 8px; }

/* ---------- Product detail ---------- */
.pd { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.pd__media { border-radius: var(--radius-lg); overflow: hidden; background: var(--paper-2); border: 1px solid var(--line); }
.pd__media svg, .pd__media img { width: 100%; display: block; }
.pd__cat { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent-deep); font-weight: 600; }
.pd__title { font-size: clamp(2rem, 3.4vw, 2.9rem); margin: 12px 0 16px; }
.pd__price { font-family: var(--font-display); font-size: 1.8rem; color: var(--accent-deep); margin-bottom: 6px; }
.pd__price small { font-family: var(--font-body); font-size: .8rem; color: var(--ink-faint); }
.pd__desc { color: var(--ink-soft); margin: 22px 0; }
.spec-table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.spec-table th, .spec-table td { text-align: left; padding: 13px 14px; border-bottom: 1px solid var(--line); font-size: .9rem; }
.spec-table th { color: var(--ink-faint); font-weight: 600; width: 42%; }
.spec-table td { color: var(--ink); }
.pd__actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 26px 0; }
.custom-block { background: var(--accent-soft); border-radius: var(--radius-lg); padding: 26px 28px; margin: 26px 0; }
.custom-block h4 { font-family: var(--font-body); font-size: .95rem; letter-spacing: .04em; text-transform: uppercase; color: var(--accent-deep); margin-bottom: 14px; }
.custom-block ul { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; }
.custom-block li { font-size: .9rem; color: var(--ink); display: flex; gap: 9px; align-items: center; }
.custom-block li::before { content: "✓"; color: var(--accent-deep); font-weight: 700; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { padding: 78px 0 30px; }
.page-hero h1 { font-size: clamp(2.4rem, 4.6vw, 3.8rem); }
.page-hero p { color: var(--ink-soft); font-size: 1.08rem; max-width: 56ch; margin-top: 14px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: rgba(255,255,255,.78); padding: 76px 0 30px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-brand .brand__name { color: #fff; }
.footer-brand .brand__name small { color: rgba(255,255,255,.5); }
.footer-brand p { font-size: .9rem; color: rgba(255,255,255,.62); margin-top: 18px; max-width: 34ch; }
.footer-col h5 { color: #fff; font-family: var(--font-body); font-size: .78rem; letter-spacing: .18em; text-transform: uppercase; margin: 0 0 18px; font-weight: 600; }
.footer-col a { display: block; font-size: .9rem; color: rgba(255,255,255,.7); padding: 7px 0; transition: color .2s; }
.footer-col a:hover { color: var(--gold); }
.footer-col p { font-size: .9rem; color: rgba(255,255,255,.7); margin: 0 0 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 54px; padding-top: 26px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; font-size: .82rem; color: rgba(255,255,255,.55); }
.footer-bottom a:hover { color: var(--gold); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; padding: 70px 0 80px; }
  .hero__visual { max-width: 520px; }
  .product-grid, .feature-grid, .quote-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .split, .pd, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .split--reverse .split__media { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .section { padding: 74px 0; }
  .nav__links, .nav__cta .btn { display: none; }
  .nav__toggle { display: block; }
  .nav__links.is-open { display: flex; position: absolute; top: 78px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--surface); border-bottom: 1px solid var(--line); padding: 10px 28px 22px; box-shadow: var(--shadow-md); }
  .nav__links.is-open a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .product-grid, .feature-grid, .quote-grid, .steps { grid-template-columns: 1fr; }
  .form-row, .custom-block ul { grid-template-columns: 1fr; }
  .cta-band { grid-template-columns: 1fr; padding: 44px 30px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .container { padding: 0 20px; }
  .hero__stats { gap: 24px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}