/* =========================================================
   Anvil Supply Co. - design system
   Light. Cool gray surfaces, navy primary, slate text.
   Data-dense, no-nonsense, mono accents.
   ========================================================= */

:root {
  /* surfaces */
  --bg:        #f4f6f9;
  --surface:   #ffffff;
  --surface-2: #eef1f5;
  --surface-3: #dde3ec;

  /* ink */
  --ink:       #0b1626;
  --ink-2:     #1f2d40;
  --ink-soft:  #56657a;
  --ink-mute:  #8a96a8;

  /* lines */
  --line:      #dce3ee;
  --line-2:    #bcc5d4;

  /* brand */
  --navy:        #16314f;
  --navy-deep:   #0c1f37;
  --navy-soft:   #d8e0ec;
  --steel:       #2d4768;
  --slate:       #475467;

  /* accents */
  --orange:    #d96a2c;  /* CTA highlights */
  --teal:      #1e8a86;
  --amber:     #b8862a;
  --green:     #2a6a3e;
  --red:       #b54839;

  /* shadow */
  --shadow:    0 1px 3px rgba(11, 22, 38, 0.06), 0 0 0 1px rgba(11, 22, 38, 0.04);
  --shadow-lg: 0 14px 38px rgba(11, 22, 38, 0.13), 0 1px 4px rgba(11, 22, 38, 0.08);
  --shadow-navy: 0 8px 20px rgba(22, 49, 79, 0.22);

  /* radius - tighter than B2C */
  --r-xs: 3px;
  --r-sm: 6px;
  --r:    8px;
  --r-lg: 12px;
  --r-xl: 20px;

  /* type */
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;

  /* motion */
  --t: 0.2s;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; max-width: 100%; overflow-x: hidden; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color var(--t) ease; }
a:hover { color: var(--orange); }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 { font-family: var(--sans); font-weight: 700; line-height: 1.18; letter-spacing: -0.01em; color: var(--ink); margin: 0; }
h1 { font-size: clamp(28px, 4.2vw, 44px); }
h2 { font-size: clamp(22px, 3vw, 32px); }
h3 { font-size: 18px; }
h4 { font-size: 15px; font-weight: 600; }
p { margin: 0; }
code { font-family: var(--mono); font-size: 0.92em; }

.container { width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 22px; }
.container-narrow { max-width: 920px; margin: 0 auto; padding: 0 22px; }

/* =========================================================
   NAV
   ========================================================= */
.nav {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.nav-strip {
  background: var(--navy);
  color: #b9c4d5;
  font-size: 12px;
  padding: 6px 0;
}
.nav-strip-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.nav-strip a { color: #fff; font-weight: 500; }

.nav-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand-mark {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 18px; color: var(--ink); letter-spacing: -0.01em;
}
.brand-mark .anvil-logo {
  width: 28px; height: 28px;
  border-radius: var(--r-sm);
  background: var(--navy);
  display: inline-grid; place-items: center;
  color: #fff; font-family: var(--mono); font-weight: 700; font-size: 14px;
}
.nav-search {
  flex: 1; max-width: 560px;
  position: relative;
}
.nav-search input {
  width: 100%; padding: 10px 14px 10px 38px;
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  font-size: 14px; background: var(--surface-2);
}
.nav-search input:focus { outline: none; border-color: var(--navy); background: #fff; }
.nav-search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--ink-mute); width: 18px; height: 18px; }

.nav-links { display: flex; align-items: center; gap: 18px; }
.nav-links a { font-size: 14px; font-weight: 600; color: var(--ink-2); }
.nav-links a.active, .nav-links a:hover { color: var(--orange); }

.nav-actions { display: flex; align-items: center; gap: 6px; }
.nav-icon-btn {
  background: transparent; border: 0;
  width: 38px; height: 38px;
  border-radius: var(--r);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink-2); position: relative;
  transition: background var(--t) ease;
}
.nav-icon-btn:hover { background: var(--surface-2); }
.cart-count {
  position: absolute; top: 2px; right: 2px;
  min-width: 18px; height: 18px;
  background: var(--orange); color: #fff;
  border-radius: 9px;
  font-size: 11px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 5px;
  border: 2px solid #fff;
}
.nav-burger { display: none; }

.nav-subbar {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}
.nav-subbar-inner { display: flex; gap: 24px; height: 42px; align-items: center; overflow-x: auto; }
.nav-subbar a { font-weight: 600; color: var(--slate); white-space: nowrap; }
.nav-subbar a:hover, .nav-subbar a.active { color: var(--orange); }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px;
  border-radius: var(--r);
  font-weight: 600; font-size: 14px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background var(--t) ease, border-color var(--t) ease, color var(--t) ease, transform var(--t) ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--navy); color: #fff; box-shadow: var(--shadow-navy); }
.btn-primary:hover { background: var(--navy-deep); color: #fff; }
.btn-orange { background: var(--orange); color: #fff; }
.btn-orange:hover { background: #b85622; color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-2);
}
.btn-ghost:hover { background: var(--surface-2); border-color: var(--ink-2); color: var(--ink); }
.btn-link { background: transparent; color: var(--navy); padding: 4px 0; border: 0; text-decoration: underline; text-underline-offset: 4px; font-weight: 600; }
.btn-link.danger { color: var(--red); }
.btn-block { width: 100%; }
.btn-sm { padding: 7px 12px; font-size: 13px; }
.btn-lg { padding: 12px 22px; font-size: 15px; }

/* =========================================================
   BADGES
   ========================================================= */
.badge {
  display: inline-flex; align-items: center;
  font-size: 11px; font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--r-sm);
  background: var(--surface-2);
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.badge-navy   { background: var(--navy-soft); color: var(--navy); }
.badge-green  { background: #d8ecdd; color: var(--green); }
.badge-amber  { background: #f4e5cc; color: var(--amber); }
.badge-red    { background: #f4cfc8; color: var(--red); }
.badge-teal   { background: #cfe6e4; color: var(--teal); }

/* =========================================================
   HERO (landing)
   ========================================================= */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--steel) 100%);
  color: #fff;
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(217, 106, 44, 0.32), transparent 60%);
}
.hero .container { position: relative; z-index: 1; }
.hero h1 { color: #fff; max-width: 18ch; margin-bottom: 18px; }
.hero-sub { color: #c5d0e0; max-width: 56ch; font-size: 17px; margin-bottom: 26px; }
.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 32px; }
.hero-value-strip {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 18px;
  padding: 18px 22px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--r-lg);
  backdrop-filter: blur(4px);
}
.hero-value-strip > div { display: flex; flex-direction: column; gap: 2px; }
.hero-value-strip strong { color: #fff; font-size: 17px; }
.hero-value-strip span { color: #98a7bd; font-size: 12.5px; }

/* =========================================================
   SECTIONS
   ========================================================= */
.section { padding: 56px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.section-head h2 { margin: 0; }
.section-head .lead { color: var(--ink-soft); max-width: 56ch; margin-top: 6px; font-size: 14.5px; }
.eyebrow {
  display: inline-block;
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--navy);
  background: var(--navy-soft);
  padding: 4px 10px;
  border-radius: var(--r-sm);
  margin-bottom: 10px;
}

/* =========================================================
   INDUSTRY TILES
   ========================================================= */
.industry-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.industry-tile {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px 22px 20px;
  display: flex; flex-direction: column;
  gap: 8px;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--t) ease, transform var(--t) ease, box-shadow var(--t) ease;
}
.industry-tile:hover { border-color: var(--navy); transform: translateY(-2px); box-shadow: var(--shadow-lg); color: inherit; }
.industry-icon {
  width: 44px; height: 44px;
  border-radius: var(--r);
  background: var(--navy-soft);
  display: inline-grid; place-items: center;
  font-size: 22px;
  color: var(--navy);
}
.industry-tile h3 { font-size: 18px; }
.industry-tile p { color: var(--ink-soft); font-size: 13.5px; }
.industry-tile .arrow { color: var(--orange); font-weight: 600; font-size: 13.5px; margin-top: 8px; }

/* =========================================================
   PRODUCT GRID + TABLE
   ========================================================= */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 16px 18px 18px;
  display: flex; flex-direction: column;
  transition: border-color var(--t) ease, transform var(--t) ease, box-shadow var(--t) ease;
  position: relative;
  overflow: hidden;
}
.product-card:hover { border-color: var(--navy); box-shadow: var(--shadow); }
.product-card .sku { font-family: var(--mono); font-size: 11.5px; color: var(--ink-mute); margin-bottom: 6px; letter-spacing: 0.2px; }
.product-card h4 { font-size: 14.5px; line-height: 1.3; margin-bottom: 4px; }
.product-card .blurb { color: var(--ink-soft); font-size: 12.5px; min-height: 32px; margin-bottom: 10px; }
.product-card .row { display: flex; justify-content: space-between; align-items: baseline; font-size: 13px; color: var(--ink-soft); margin-bottom: 6px; }
.product-card .price { font-size: 18px; font-weight: 700; color: var(--ink); }
.product-card .moq { font-family: var(--mono); font-size: 12px; }
.product-card .stock { font-family: var(--mono); font-size: 12px; font-weight: 600; }
.product-card .stock.low { color: var(--red); }
.product-card .stock.ok  { color: var(--green); }
.product-card .add-row { margin-top: 12px; display: flex; gap: 6px; align-items: center; }
.product-card .add-row input {
  width: 60px; padding: 7px 8px; border: 1px solid var(--line-2);
  border-radius: var(--r-sm); font-family: var(--mono); font-size: 13px; text-align: center;
}
.product-card .add-row .btn { flex: 1; }

/* Table mode */
.product-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.product-table thead th {
  text-align: left;
  padding: 12px 14px;
  background: var(--surface-2);
  font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--ink-mute); font-weight: 700;
  border-bottom: 1px solid var(--line);
}
.product-table tbody td { padding: 12px 14px; border-bottom: 1px solid var(--line); font-size: 13.5px; vertical-align: middle; }
.product-table tbody tr:last-child td { border-bottom: 0; }
.product-table tbody tr:hover { background: var(--surface-2); }
.product-table .sku-cell { font-family: var(--mono); font-size: 12.5px; color: var(--navy); font-weight: 600; }
.product-table .name-cell strong { font-weight: 600; display: block; color: var(--ink); }
.product-table .name-cell span { color: var(--ink-soft); font-size: 12px; }
.product-table .tier-cell { font-family: var(--mono); font-size: 12px; color: var(--ink-2); }
.product-table .tier-cell div { display: flex; justify-content: space-between; min-width: 100px; }
.product-table .qty-input { width: 70px; padding: 7px 8px; border: 1px solid var(--line-2); border-radius: var(--r-sm); font-family: var(--mono); font-size: 13px; text-align: center; }

/* =========================================================
   CATALOG LAYOUT
   ========================================================= */
.catalog-head { display: flex; justify-content: space-between; align-items: center; gap: 14px; margin-bottom: 16px; flex-wrap: wrap; }
.catalog-meta { color: var(--ink-soft); font-size: 13.5px; }
.view-toggle { display: inline-flex; border: 1px solid var(--line-2); border-radius: var(--r); overflow: hidden; }
.view-toggle button { background: #fff; border: 0; padding: 7px 14px; font-size: 12.5px; font-weight: 600; color: var(--ink-2); cursor: pointer; }
.view-toggle button.active { background: var(--navy); color: #fff; }

.catalog-layout { display: grid; grid-template-columns: 220px 1fr; gap: 22px; align-items: flex-start; }
.filters {
  position: sticky; top: 110px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 16px 18px;
}
.filters-section { margin-bottom: 18px; }
.filters-section:last-child { margin-bottom: 0; }
.filters-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.8px;
  font-weight: 700; color: var(--ink-mute);
  margin-bottom: 10px;
}
.filter-option { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--ink-2); padding: 5px 0; cursor: pointer; }
.filter-option input { accent-color: var(--navy); }
.filter-option:hover { color: var(--navy); }
.filter-option.active { color: var(--navy); font-weight: 600; }
.filter-input { width: 100%; padding: 8px 10px; border: 1px solid var(--line-2); border-radius: var(--r-sm); font-size: 13px; font-family: var(--mono); }

/* Bulk add panel */
.bulk-add {
  background: var(--navy-soft);
  border: 1px solid var(--navy-soft);
  border-radius: var(--r-lg);
  padding: 16px 18px;
  margin-bottom: 18px;
}
.bulk-add h4 { color: var(--navy); margin-bottom: 8px; }
.bulk-add p { font-size: 12.5px; color: var(--steel); margin-bottom: 8px; }
.bulk-add textarea {
  width: 100%; min-height: 80px;
  padding: 10px 12px;
  border: 1px solid var(--line-2); border-radius: var(--r-sm);
  font-family: var(--mono); font-size: 12.5px;
  background: #fff;
  resize: vertical;
}
.bulk-add textarea:focus { outline: none; border-color: var(--navy); }
.bulk-results { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; }
.bulk-result { display: grid; grid-template-columns: 100px 1fr 80px auto; gap: 10px; padding: 6px 10px; background: #fff; border-radius: var(--r-sm); align-items: center; }
.bulk-result.miss { background: #f4cfc8; color: var(--red); }
.bulk-result .ok { color: var(--green); font-family: var(--mono); }

/* =========================================================
   PRODUCT DETAIL
   ========================================================= */
.product-page { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; margin-top: 24px; align-items: flex-start; }
.product-page-img {
  aspect-ratio: 4/3;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  display: grid; place-items: center;
  color: var(--ink-mute);
  position: relative;
  overflow: hidden;
}
.product-page-img-mark {
  font-family: var(--mono);
  font-size: 80px; font-weight: 700;
  color: var(--navy-soft);
  letter-spacing: -0.05em;
}
.product-page-img-sub { position: absolute; bottom: 14px; left: 16px; right: 16px; font-size: 12px; color: var(--ink-mute); font-family: var(--mono); display: flex; justify-content: space-between; }

.product-page-info .sku { font-family: var(--mono); font-size: 13px; color: var(--navy); font-weight: 600; margin-bottom: 6px; }
.product-page-info h1 { font-size: clamp(24px, 3vw, 32px); margin-bottom: 10px; }
.product-page-info .blurb { color: var(--ink-soft); margin-bottom: 18px; font-size: 14.5px; }

.tier-pricing-table {
  width: 100%;
  border: 1px solid var(--line); border-radius: var(--r);
  background: var(--surface-2);
  margin-bottom: 18px;
}
.tier-pricing-table .tier-head { display: grid; grid-template-columns: repeat(4, 1fr); padding: 10px 14px; font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--ink-mute); font-weight: 700; border-bottom: 1px solid var(--line); }
.tier-pricing-table .tier-body { display: grid; grid-template-columns: repeat(4, 1fr); padding: 12px 14px; font-family: var(--mono); font-size: 14px; gap: 8px; }
.tier-pricing-table .tier-body > div { display: flex; flex-direction: column; gap: 2px; }
.tier-pricing-table .tier-body strong { font-weight: 700; color: var(--ink); font-size: 16px; }
.tier-pricing-table .tier-body span { color: var(--ink-mute); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.4px; font-family: var(--sans); }

.product-stock-row { display: flex; gap: 18px; align-items: center; font-size: 13.5px; color: var(--ink-soft); margin-bottom: 18px; flex-wrap: wrap; }
.product-stock-row .stock-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); display: inline-block; margin-right: 6px; vertical-align: middle; }
.product-stock-row .stock-dot.low { background: var(--amber); }

.product-qty-row { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.qty-stepper { display: inline-flex; align-items: center; border: 1px solid var(--line-2); border-radius: var(--r); overflow: hidden; }
.qty-stepper button { width: 36px; height: 38px; border: 0; background: transparent; font-size: 16px; color: var(--ink); }
.qty-stepper button:hover { background: var(--surface-2); }
.qty-stepper input { width: 70px; height: 38px; border: 0; text-align: center; font-family: var(--mono); font-size: 14px; font-weight: 600; }

.spec-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.spec-table td { padding: 9px 0; border-bottom: 1px dashed var(--line); }
.spec-table td:first-child { color: var(--ink-soft); width: 38%; text-transform: capitalize; }
.spec-table td:last-child { color: var(--ink); font-family: var(--mono); }
.spec-table tr:last-child td { border-bottom: 0; }

.product-tabs { border-top: 1px solid var(--line); margin-top: 28px; padding-top: 22px; }
.tab-buttons { display: flex; gap: 22px; border-bottom: 1px solid var(--line); margin-bottom: 18px; flex-wrap: wrap; }
.tab-button { background: transparent; border: 0; padding: 10px 2px; font-weight: 600; color: var(--ink-soft); position: relative; cursor: pointer; font-family: var(--sans); font-size: 13.5px; }
.tab-button.active { color: var(--ink); }
.tab-button.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--navy); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* =========================================================
   CART
   ========================================================= */
.cart-layout { display: grid; grid-template-columns: 1.4fr 0.9fr; gap: 28px; margin-top: 18px; align-items: flex-start; }
.cart-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); }
.cart-row {
  display: grid; grid-template-columns: 80px 1fr 130px 100px 80px;
  align-items: center; gap: 14px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
.cart-row:last-child { border-bottom: 0; }
.cart-row .img { aspect-ratio: 1; background: var(--surface-2); border-radius: var(--r-sm); display: grid; place-items: center; color: var(--navy); font-family: var(--mono); font-weight: 700; font-size: 18px; }
.cart-row .name { font-weight: 600; }
.cart-row .sku  { font-family: var(--mono); font-size: 12px; color: var(--navy); }
.cart-row .blurb { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.cart-row .qty input { width: 70px; padding: 6px 8px; border: 1px solid var(--line-2); border-radius: var(--r-sm); font-family: var(--mono); font-size: 13px; text-align: center; }
.cart-row .qty .hint { font-size: 11px; color: var(--ink-mute); font-family: var(--mono); margin-top: 4px; text-align: center; }
.cart-row .price { font-family: var(--mono); font-size: 14px; text-align: right; }
.cart-row .actions { text-align: right; }

.cart-summary { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 20px; position: sticky; top: 110px; }
.cart-summary h3 { margin-bottom: 12px; }
.summary-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 13.5px; color: var(--ink-2); }
.summary-row.total { border-top: 1px solid var(--line); margin-top: 8px; padding-top: 12px; font-size: 17px; font-weight: 700; color: var(--ink); }
.summary-row.discount span:last-child { color: var(--green); font-family: var(--mono); }
.summary-row.terms { font-family: var(--mono); font-size: 12px; color: var(--ink-mute); }

.po-field { margin: 12px 0 14px; }
.po-field label { font-size: 12px; font-weight: 600; color: var(--ink-2); display: block; margin-bottom: 4px; }
.po-field input { width: 100%; padding: 9px 11px; border: 1px solid var(--line-2); border-radius: var(--r-sm); font-family: var(--mono); font-size: 13px; }

.freight-bar { margin: 12px 0; padding: 10px 12px; background: var(--surface-2); border-radius: var(--r-sm); }
.freight-bar-text { font-size: 12px; color: var(--ink-soft); margin-bottom: 4px; }
.freight-progress { height: 5px; background: var(--line); border-radius: 999px; overflow: hidden; }
.freight-fill { height: 100%; background: var(--navy); border-radius: 999px; transition: width var(--t) var(--ease); }

.cart-empty { text-align: center; padding: 72px 24px; }
.cart-empty h2 { margin-bottom: 8px; }
.cart-empty p { color: var(--ink-soft); margin-bottom: 18px; }

/* =========================================================
   CHECKOUT
   ========================================================= */
.checkout-layout { display: grid; grid-template-columns: 1.2fr 0.9fr; gap: 28px; margin-top: 18px; align-items: flex-start; }
.checkout-main { min-width: 0; }
.checkout-steps {
  list-style: none; padding: 0; margin: 0 0 22px;
  display: flex; gap: 0;
}
.checkout-steps li {
  flex: 1;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 14px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 13px; font-weight: 600; color: var(--ink-mute);
}
.checkout-steps li + li { border-left: 0; }
.checkout-steps li:first-child { border-radius: var(--r) 0 0 var(--r); }
.checkout-steps li:last-child  { border-radius: 0 var(--r) var(--r) 0; }
.checkout-steps li .step-num { width: 22px; height: 22px; border-radius: 50%; background: var(--surface-2); color: var(--ink-mute); display: inline-grid; place-items: center; font-family: var(--mono); font-size: 12px; font-weight: 700; }
.checkout-steps li.active { color: var(--navy); background: var(--navy-soft); border-color: var(--navy); }
.checkout-steps li.active .step-num { background: var(--navy); color: #fff; }
.checkout-steps li.done { color: var(--green); background: #ecf6ee; border-color: #b9d8c0; }
.checkout-steps li.done .step-num { background: var(--green); color: #fff; }

.checkout-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px; }
.checkout-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.checkout-form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.field label { font-size: 12px; font-weight: 700; color: var(--ink-2); }
.field input, .field select, .field textarea {
  padding: 9px 12px;
  border: 1px solid var(--line-2); border-radius: var(--r-sm);
  font-size: 14px; font-family: inherit;
  background: #fff; color: var(--ink);
  width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(22,49,79,0.12); }
.field textarea { min-height: 80px; resize: vertical; }
.field .hint { font-size: 11.5px; color: var(--ink-mute); font-family: var(--mono); margin-top: 2px; }

.option-card-group { display: flex; flex-direction: column; gap: 8px; }
.option-card { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border: 1.5px solid var(--line-2); border-radius: var(--r); cursor: pointer; transition: border-color var(--t) ease, background var(--t) ease; }
.option-card:hover { border-color: var(--ink-mute); }
.option-card.active { border-color: var(--navy); background: var(--navy-soft); }
.option-card input { margin-top: 4px; accent-color: var(--navy); }
.option-card-body { flex: 1; }
.option-card-title { font-weight: 600; font-size: 14px; display: flex; justify-content: space-between; }
.option-card-sub { font-size: 12.5px; color: var(--ink-soft); margin-top: 2px; font-family: var(--mono); }

.checkout-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.step-heading { font-size: 20px; margin-bottom: 16px; }
.step-subheading { font-size: 15px; margin: 22px 0 10px; }

.approval-banner {
  background: #fff5e6; border: 1px solid #f7d8a8; color: #8a5a14;
  padding: 12px 16px; border-radius: var(--r); font-size: 13px;
  margin-bottom: 16px;
}
.approval-banner strong { color: #5a3a08; }

/* =========================================================
   SUCCESS
   ========================================================= */
.success-hero { text-align: center; padding: 36px 22px 28px; max-width: 720px; margin: 0 auto; }
.success-icon {
  width: 80px; height: 80px;
  background: #d8ecdd; color: var(--green);
  border-radius: 50%;
  display: grid; place-items: center;
  margin: 0 auto 18px;
  font-size: 36px;
}
.success-hero h1 { margin-bottom: 8px; }
.success-hero p { color: var(--ink-soft); margin-bottom: 14px; }
.success-grid { display: grid; grid-template-columns: 1.2fr 0.9fr; gap: 22px; }
.success-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 20px 22px; }
.success-card h3 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--ink-mute); margin-bottom: 12px; }
.success-card p { font-size: 14px; color: var(--ink); margin: 2px 0; }

.status-timeline { display: flex; flex-direction: column; gap: 12px; }
.status-step { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; color: var(--ink-mute); }
.status-dot { width: 14px; height: 14px; border-radius: 50%; background: var(--surface-2); border: 2px solid var(--line-2); flex-shrink: 0; margin-top: 2px; }
.status-step.done .status-dot { background: var(--green); border-color: var(--green); }
.status-step.done { color: var(--ink); }
.status-step strong { color: var(--ink-mute); display: block; font-weight: 600; }
.status-step.done strong { color: var(--ink); }
.status-time { font-size: 11.5px; color: var(--ink-mute); font-family: var(--mono); }

/* =========================================================
   QUOTE REQUEST
   ========================================================= */
.quote-line {
  display: grid; grid-template-columns: 1fr 100px 40px;
  gap: 10px; align-items: center;
  padding: 8px 0; border-bottom: 1px dashed var(--line);
}
.quote-line input { padding: 8px 10px; border: 1px solid var(--line-2); border-radius: var(--r-sm); font-family: var(--mono); font-size: 13px; width: 100%; }
.quote-line button { background: transparent; border: 0; color: var(--red); font-size: 18px; cursor: pointer; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { background: var(--navy-deep); color: #b9c4d5; padding: 48px 0 22px; margin-top: 72px; }
.footer h5 { color: #fff; font-size: 12px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr repeat(4, 1fr); gap: 32px; margin-bottom: 32px; }
.footer-grid a { display: block; padding: 3px 0; color: #b9c4d5; font-size: 13.5px; }
.footer-grid a:hover { color: var(--orange); }
.footer-brand p { font-size: 13px; max-width: 280px; margin: 10px 0 16px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 14px; padding-top: 20px; border-top: 1px solid #1d3151; font-size: 12px; color: #7d8a9e; flex-wrap: wrap; }

/* =========================================================
   TOAST
   ========================================================= */
.toast-stack { position: fixed; top: 22px; right: 22px; z-index: 100; display: flex; flex-direction: column; gap: 8px; pointer-events: none; }
.toast {
  background: var(--ink);
  color: #fff;
  padding: 11px 16px;
  border-radius: var(--r);
  font-size: 13.5px;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  min-width: 240px; max-width: 360px;
  animation: toastIn 0.25s var(--ease);
}
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }
.toast.success { background: var(--green); }
.toast.error   { background: var(--red); }

/* =========================================================
   MODAL
   ========================================================= */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(11, 22, 38, 0.55);
  z-index: 120;
  display: grid; place-items: center;
  padding: 22px;
  animation: fadeIn 0.18s var(--ease);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal { background: #fff; border-radius: var(--r-lg); max-width: 640px; width: 100%; max-height: 86vh; display: flex; flex-direction: column; box-shadow: var(--shadow-lg); animation: popIn 0.22s var(--ease); }
.modal-lg { max-width: 920px; }
@keyframes popIn { from { transform: translateY(16px); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 22px; border-bottom: 1px solid var(--line); }
.modal-head h3 { font-size: 17px; }
.modal-close { width: 30px; height: 30px; border-radius: 50%; border: 0; background: var(--surface-2); font-size: 18px; cursor: pointer; }
.modal-body { padding: 20px 22px 22px; overflow-y: auto; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1020px) {
  .product-page { grid-template-columns: 1fr; }
  .cart-layout, .checkout-layout, .success-grid { grid-template-columns: 1fr; }
  .catalog-layout { grid-template-columns: 1fr; }
  .filters, .cart-summary { position: relative; top: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-search { display: none; }
  .nav-links { display: none; }
  .nav-burger { display: inline-flex; align-items: center; justify-content: center; }
  .checkout-form-grid { grid-template-columns: 1fr; }
  .cart-row { grid-template-columns: 60px 1fr; }
  .cart-row .qty, .cart-row .price, .cart-row .actions { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; }
  .product-table thead { display: none; }
  .product-table tbody td { display: block; padding: 4px 12px; }
  .product-table tbody tr { display: block; padding: 10px 4px 12px; border-bottom: 1px solid var(--line); }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
}