/* ── Design tokens ──────────────────────────────────────────────────────────── */
:root {
  --color-primary:   #1C1C2E;
  --color-accent:    #C4813A;
  --color-accent-dk: #a86d2f;
  --color-bg:        #FAF8F5;
  --color-surface:   #FFFFFF;
  --color-border:    #E8E4DF;
  --color-text:      #1A1A1A;
  --color-muted:     #6B7280;
  --color-success:   #16a34a;
  --color-error:     #dc2626;

  --font:   'Inter', system-ui, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,.07);
  --shadow-md: 0 4px 24px rgba(0,0,0,.10);
  --transition: .18s ease;
}

/* ── Reset ──────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: var(--font); font-size: 15px; }

/* ── Layout ─────────────────────────────────────────────────────────────────── */
.container { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }
.section-alt { background: var(--color-surface); }

.section-header { text-align: center; margin-bottom: 48px; }
.section-tag {
  display: inline-block;
  font-size: 12px; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--color-accent);
  margin-bottom: 10px;
}
.section-header h2 { font-size: clamp(26px,4vw,34px); font-weight: 800; color: var(--color-primary); }
.section-header p  { color: var(--color-muted); margin-top: 10px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 600; border-radius: var(--radius-sm);
  transition: var(--transition); cursor: pointer; white-space: nowrap;
  padding: 10px 20px; font-size: 14px;
}
.btn-primary {
  background: var(--color-accent); color: #fff;
  box-shadow: 0 2px 8px rgba(196,129,58,.3);
}
.btn-primary:hover { background: var(--color-accent-dk); transform: translateY(-1px); }
.btn-outline {
  border: 2px solid var(--color-primary); color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-dark { background: var(--color-primary); color: #fff; }
.btn-dark:hover { background: #2d2d42; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }

/* ── Header ─────────────────────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--color-primary);
  box-shadow: 0 2px 12px rgba(0,0,0,.2);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-text { font-size: 17px; font-weight: 800; color: #fff; letter-spacing: -.3px; }
.main-nav { display: flex; gap: 28px; }
.main-nav a { color: rgba(255,255,255,.75); font-size: 14px; font-weight: 500; transition: var(--transition); }
.main-nav a:hover, .main-nav a.active { color: #fff; }
.header-right { display: flex; align-items: center; gap: 16px; }
.cart-btn {
  position: relative; color: rgba(255,255,255,.85);
  transition: var(--transition);
}
.cart-btn:hover { color: #fff; }
.cart-badge {
  position: absolute; top: -7px; right: -8px;
  background: var(--color-accent); color: #fff;
  font-size: 10px; font-weight: 700; border-radius: 50%;
  width: 18px; height: 18px; display: flex; align-items: center; justify-content: center;
}
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: rgba(255,255,255,.85); border-radius: 2px; transition: var(--transition);
}

/* ── Mobile nav ─────────────────────────────────────────────────────────────── */
.mobile-nav {
  display: none; flex-direction: column;
  background: var(--color-primary); padding: 12px 20px 16px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a { color: rgba(255,255,255,.8); padding: 10px 0; font-size: 15px; border-bottom: 1px solid rgba(255,255,255,.08); }
.mobile-nav a:last-child { border-bottom: none; }

/* ── Hero ───────────────────────────────────────────────────────────────────── */
.hero {
  background: var(--color-primary);
  padding: 80px 0 72px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(196,129,58,.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(196,129,58,.15); color: var(--color-accent);
  font-size: 12px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; padding: 6px 12px; border-radius: 20px;
  border: 1px solid rgba(196,129,58,.3); margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(32px,5vw,52px); font-weight: 800;
  color: #fff; line-height: 1.15; margin-bottom: 18px;
}
.hero h1 span { color: var(--color-accent); }
.hero p { color: rgba(255,255,255,.7); font-size: 17px; line-height: 1.7; margin-bottom: 32px; max-width: 480px; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 32px; }
.trust-strip { display: flex; gap: 20px; flex-wrap: wrap; }
.trust-item {
  display: flex; align-items: center; gap: 7px;
  color: rgba(255,255,255,.6); font-size: 13px; font-weight: 500;
}
.hero-visual {
  display: flex; align-items: center; justify-content: center;
}
.hero-img-box {
  width: 100%; max-width: 400px; aspect-ratio: 1;
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08);
  border-radius: 20px; display: flex; align-items: center; justify-content: center;
  font-size: 80px;
}

/* ── Category pills ─────────────────────────────────────────────────────────── */
.cat-tabs {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 40px; justify-content: center;
}
.cat-tab {
  padding: 9px 20px; border-radius: 50px; font-size: 14px; font-weight: 600;
  border: 2px solid var(--color-border); color: var(--color-muted);
  background: var(--color-surface); cursor: pointer; transition: var(--transition);
}
.cat-tab:hover   { border-color: var(--color-accent); color: var(--color-accent); }
.cat-tab.active  { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* ── Product grid ───────────────────────────────────────────────────────────── */
.product-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px;
}
.product-card {
  background: var(--color-surface); border-radius: var(--radius);
  border: 1px solid var(--color-border); overflow: hidden;
  transition: var(--transition); display: block; color: inherit;
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.product-card-img {
  aspect-ratio: 1; background: var(--color-bg);
  display: flex; align-items: center; justify-content: center;
  font-size: 60px; overflow: hidden;
}
.product-card-img img { width: 100%; height: 100%; object-fit: cover; }
.product-card-body { padding: 18px; }
.product-type-badge {
  display: inline-block; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em;
  padding: 3px 8px; border-radius: 4px; margin-bottom: 8px;
}
.badge-custom  { background: #eff6ff; color: #2563eb; }
.badge-catalog { background: #fefce8; color: #854d0e; }
.badge-premium { background: #fdf4ff; color: #7e22ce; }
.product-card-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; color: var(--color-primary); }
.product-card-body p  { font-size: 13px; color: var(--color-muted); margin-bottom: 14px; line-height: 1.5; }
.product-meta { display: flex; align-items: center; justify-content: space-between; }
.product-price { font-size: 18px; font-weight: 800; color: var(--color-primary); }
.product-price .from { font-size: 12px; font-weight: 500; color: var(--color-muted); margin-right: 2px; }

/* ── How it works ───────────────────────────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 28px; }
.step { text-align: center; }
.step-num {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--color-accent); color: #fff;
  font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--color-primary); }
.step p  { font-size: 14px; color: var(--color-muted); line-height: 1.6; }

/* ── Testimonials ───────────────────────────────────────────────────────────── */
.testimonials { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap: 24px; }
.testimonial {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 24px;
}
.stars { color: var(--color-accent); font-size: 16px; margin-bottom: 12px; letter-spacing: 2px; }
.testimonial p { font-size: 14px; color: var(--color-text); line-height: 1.7; margin-bottom: 14px; font-style: italic; }
.reviewer { font-size: 13px; font-weight: 700; color: var(--color-muted); }

/* ── FAQ ────────────────────────────────────────────────────────────────────── */
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; }
.faq-q {
  width: 100%; text-align: left; padding: 16px 20px;
  font-weight: 600; font-size: 15px; color: var(--color-primary);
  background: var(--color-surface); cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  transition: var(--transition);
}
.faq-q:hover { background: var(--color-bg); }
.faq-q .arrow { font-size: 12px; color: var(--color-muted); transition: transform .2s; flex-shrink: 0; margin-left: 12px; }
.faq-q.open .arrow { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 20px 16px; font-size: 14px; color: var(--color-muted); line-height: 1.7; background: var(--color-surface); }
.faq-a.open { display: block; }

/* ── Product detail page ────────────────────────────────────────────────────── */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; padding: 56px 0; }
.product-gallery-main {
  aspect-ratio: 1; background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 80px; overflow: hidden;
}
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.product-info h1 { font-size: clamp(22px,3vw,30px); font-weight: 800; color: var(--color-primary); margin-bottom: 10px; }
.product-info .price-row { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.product-info .price { font-size: 28px; font-weight: 800; color: var(--color-accent); }
.product-info .price-note { font-size: 13px; color: var(--color-muted); }
.product-info .description { font-size: 15px; color: var(--color-muted); line-height: 1.7; margin-bottom: 28px; }

/* ── Customisation form ─────────────────────────────────────────────────────── */
.custom-form { display: flex; flex-direction: column; gap: 22px; }
.form-group label { display: block; font-weight: 600; font-size: 14px; color: var(--color-primary); margin-bottom: 8px; }
.form-group label .required { color: var(--color-error); margin-left: 2px; }
.form-group small { display: block; font-size: 12px; color: var(--color-muted); margin-top: 5px; }
.form-control {
  width: 100%; padding: 11px 14px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border); font-size: 15px;
  background: var(--color-surface); transition: var(--transition);
  color: var(--color-text);
}
.form-control:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(196,129,58,.15); }
textarea.form-control { resize: vertical; min-height: 90px; }

/* Colour swatches */
.swatch-group { display: flex; flex-wrap: wrap; gap: 10px; }
.swatch {
  width: 36px; height: 36px; border-radius: 50%; cursor: pointer;
  border: 2px solid #D1CBC3; transition: var(--transition);
  position: relative;
}
.swatch:hover { transform: scale(1.1); border-color: #B0A89F; }
.swatch.selected { border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(196,129,58,.3); }
.swatch-label { font-size: 12px; color: var(--color-muted); margin-top: 6px; }

/* Radio options */
.radio-group { display: flex; flex-direction: column; gap: 10px; }
.radio-option {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px;
  border: 1.5px solid var(--color-border); border-radius: var(--radius-sm);
  cursor: pointer; transition: var(--transition);
}
.radio-option:hover   { border-color: var(--color-accent); }
.radio-option.selected { border-color: var(--color-accent); background: rgba(196,129,58,.06); }
.radio-option input   { accent-color: var(--color-accent); }
.radio-option span    { font-size: 14px; font-weight: 500; }

/* Variant picker (catalog) */
.variant-section { margin-bottom: 20px; }
.variant-section h4 { font-weight: 700; font-size: 14px; margin-bottom: 10px; color: var(--color-primary); }
.size-group { display: flex; flex-wrap: wrap; gap: 10px; }
.size-btn {
  padding: 9px 18px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border); font-size: 14px; font-weight: 600;
  cursor: pointer; transition: var(--transition); background: var(--color-surface);
  color: var(--color-text);
}
.size-btn:hover   { border-color: var(--color-accent); color: var(--color-accent); }
.size-btn.selected { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* File upload */
.upload-zone {
  border: 2px dashed var(--color-border); border-radius: var(--radius);
  padding: 28px; text-align: center; cursor: pointer; transition: var(--transition);
  background: var(--color-bg);
}
.upload-zone:hover { border-color: var(--color-accent); background: rgba(196,129,58,.04); }
.upload-zone p     { font-size: 14px; color: var(--color-muted); margin-top: 8px; }
.upload-zone input[type="file"] { display: none; }
.upload-icon { font-size: 32px; margin-bottom: 4px; }
.multi-upload-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px,1fr)); gap: 14px; }
.upload-slot {
  border: 2px dashed var(--color-border); border-radius: var(--radius-sm);
  aspect-ratio: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; cursor: pointer;
  transition: var(--transition); font-size: 13px; color: var(--color-muted);
  background: var(--color-bg); position: relative; overflow: hidden;
}
.upload-slot:hover { border-color: var(--color-accent); }
.upload-slot .slot-label { font-weight: 600; font-size: 12px; margin-top: 6px; }
.upload-slot img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.upload-slot input[type="file"] { display: none; }

/* ── Cart ───────────────────────────────────────────────────────────────────── */
.cart-layout { display: grid; grid-template-columns: 1fr 360px; gap: 32px; align-items: start; padding: 48px 0; }
.cart-items { display: flex; flex-direction: column; gap: 16px; }
.cart-item {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 20px; display: flex; gap: 16px; align-items: flex-start;
}
.cart-item-img {
  width: 80px; height: 80px; border-radius: 8px; background: var(--color-bg);
  flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 32px;
  overflow: hidden;
}
.cart-item-img img { width: 100%; height: 100%; object-fit: cover; }
.cart-item-info { flex: 1; }
.cart-item-info h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.cart-item-info p  { font-size: 13px; color: var(--color-muted); }
.cart-item-price { font-size: 17px; font-weight: 800; color: var(--color-accent); white-space: nowrap; }
.remove-btn { font-size: 12px; color: var(--color-error); margin-top: 6px; cursor: pointer; }
.remove-btn:hover { text-decoration: underline; }

.order-summary {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 24px; position: sticky; top: 88px;
}
.order-summary h3 { font-size: 17px; font-weight: 800; margin-bottom: 20px; color: var(--color-primary); }
.summary-row { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 10px; }
.summary-row.total { font-size: 17px; font-weight: 800; border-top: 1px solid var(--color-border); padding-top: 14px; margin-top: 4px; color: var(--color-primary); }
.free-shipping-note { font-size: 12px; color: var(--color-success); font-weight: 600; text-align: center; margin-bottom: 16px; }

/* ── Checkout ───────────────────────────────────────────────────────────────── */
.checkout-layout { display: grid; grid-template-columns: 1fr 360px; gap: 32px; align-items: start; padding: 48px 0; }
.checkout-form-section { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 28px; }
.checkout-form-section h2 { font-size: 18px; font-weight: 800; margin-bottom: 22px; color: var(--color-primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.no-return-box {
  background: #fff7ed; border: 1.5px solid #fed7aa; border-radius: var(--radius-sm);
  padding: 14px 16px; margin-bottom: 20px;
}
.no-return-box p { font-size: 13px; color: #92400e; line-height: 1.6; }
.no-return-box label { display: flex; align-items: flex-start; gap: 10px; margin-top: 10px; cursor: pointer; }
.no-return-box input[type="checkbox"] { flex-shrink: 0; margin-top: 2px; accent-color: var(--color-accent); }

/* ── Track order ────────────────────────────────────────────────────────────── */
.track-box { max-width: 540px; margin: 0 auto; padding: 56px 0; }
.track-box h1 { font-size: 26px; font-weight: 800; margin-bottom: 8px; color: var(--color-primary); }
.track-box p  { color: var(--color-muted); margin-bottom: 28px; }
.status-timeline { margin-top: 32px; }
.status-step { display: flex; gap: 16px; margin-bottom: 20px; align-items: flex-start; }
.status-dot {
  width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 15px;
  border: 2px solid var(--color-border); background: var(--color-surface); color: var(--color-muted);
}
.status-dot.done  { background: var(--color-success); border-color: var(--color-success); color: #fff; }
.status-dot.active { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.status-info h4 { font-size: 15px; font-weight: 700; color: var(--color-primary); }
.status-info p  { font-size: 13px; color: var(--color-muted); }

/* ── Breadcrumb ─────────────────────────────────────────────────────────────── */
.breadcrumb { padding: 16px 0; font-size: 13px; color: var(--color-muted); }
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb span { margin: 0 6px; }

/* ── Alert / flash ──────────────────────────────────────────────────────────── */
.alert { padding: 14px 18px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 20px; }
.alert-success { background: #f0fdf4; color: #15803d; border: 1px solid #bbf7d0; }
.alert-error   { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }

/* ── Page header ────────────────────────────────────────────────────────────── */
.page-hero { background: var(--color-primary); padding: 48px 0 40px; }
.page-hero h1 { font-size: clamp(26px,4vw,38px); font-weight: 800; color: #fff; margin-bottom: 8px; }
.page-hero p  { color: rgba(255,255,255,.6); }

/* ── Empty state ────────────────────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 80px 20px; }
.empty-state .icon { font-size: 56px; margin-bottom: 16px; }
.empty-state h3    { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: var(--color-primary); }
.empty-state p     { color: var(--color-muted); margin-bottom: 24px; }

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.site-footer { background: var(--color-primary); color: rgba(255,255,255,.7); padding-top: 56px; }
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-top: 14px; max-width: 280px; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.footer-links h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 14px; }
.footer-links a  { display: block; font-size: 13px; color: rgba(255,255,255,.6); margin-bottom: 8px; transition: var(--transition); }
.footer-links a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0; text-align: center;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.4); }
.footer-policy { margin-top: 4px; }
.footer-policy strong { color: rgba(255,255,255,.6); }

/* ── Success page ───────────────────────────────────────────────────────────── */
.success-box { max-width: 560px; margin: 0 auto; text-align: center; padding: 80px 0; }
.success-icon { font-size: 64px; margin-bottom: 20px; }
.success-box h1 { font-size: 28px; font-weight: 800; color: var(--color-primary); margin-bottom: 10px; }
.success-box p  { color: var(--color-muted); margin-bottom: 8px; }
.order-num { font-size: 22px; font-weight: 800; color: var(--color-accent); margin: 16px 0; }
.success-actions { display: flex; gap: 14px; justify-content: center; margin-top: 28px; flex-wrap: wrap; }

/* ── STL Estimator ──────────────────────────────────────────────────────────── */
.stl-upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.stl-upload-zone:hover, .stl-upload-zone.drag-over {
  border-color: var(--color-accent);
  background: rgba(196,129,58,.05);
}
.stl-upload-zone .upload-icon { font-size: 32px; margin-bottom: 8px; }
.stl-upload-zone strong { font-size: 15px; }
.stl-upload-zone p  { font-size: 13px; color: var(--color-muted); margin-top: 4px; }
.stl-analysis {
  flex-wrap: wrap;
  gap: 0;
  margin-top: 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
}
.stl-stat {
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  flex: 1;
  min-width: 120px;
  border-right: 1px solid var(--color-border);
}
.stl-stat:last-child { border-right: none; }
.stl-stat-label { font-size: 10px; color: var(--color-muted); text-transform: uppercase; letter-spacing: .6px; }
.stl-stat-val   { font-weight: 700; font-size: 14px; color: var(--color-text); margin-top: 4px; }
.stl-btn-group  { display: flex; gap: 10px; flex-wrap: wrap; }
.stl-opt-btn {
  padding: 10px 16px;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-card);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 72px;
}
.stl-opt-btn .opt-note { font-size: 10px; font-weight: 400; color: var(--color-muted); }
.stl-opt-btn:hover { border-color: var(--color-accent); }
.stl-opt-btn.selected { border-color: var(--color-accent); background: rgba(196,129,58,.12); color: var(--color-accent); }
.stl-opt-btn.selected .opt-note { color: rgba(196,129,58,.7); }
.stl-price-box {
  background: linear-gradient(135deg, rgba(196,129,58,.08), rgba(196,129,58,.03));
  border: 2px solid var(--color-accent);
  border-radius: 14px;
  padding: 20px 22px;
  text-align: center;
  margin-top: 4px;
}
.stl-price-label { font-size: 11px; text-transform: uppercase; letter-spacing: .8px; color: var(--color-muted); margin-bottom: 6px; }
.stl-price-value { font-size: 24px; font-weight: 800; color: var(--color-accent); line-height: 1.2; }
.stl-price-value.placeholder { font-size: 15px; font-weight: 400; color: var(--color-muted); }
.stl-price-note  { font-size: 12px; color: var(--color-muted); margin-top: 6px; }
.stl-hint { font-size: 12px; color: var(--color-muted); margin: 0 0 10px; }
@media (max-width: 480px) {
  .stl-stat { min-width: 100%; border-right: none; border-bottom: 1px solid var(--color-border); }
  .stl-stat:last-child { border-bottom: none; }
}

/* ── Utility ────────────────────────────────────────────────────────────────── */
.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.text-muted { color: var(--color-muted); }
.text-accent { color: var(--color-accent); }
.hidden { display: none !important; }
.divider { border: none; border-top: 1px solid var(--color-border); margin: 24px 0; }

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner        { grid-template-columns: 1fr; }
  .hero-visual       { display: none; }
  .product-detail    { grid-template-columns: 1fr; gap: 32px; }
  .cart-layout       { grid-template-columns: 1fr; }
  .checkout-layout   { grid-template-columns: 1fr; }
  .footer-inner      { grid-template-columns: 1fr; }
  .order-summary     { position: static; }
}
@media (max-width: 640px) {
  .main-nav          { display: none; }
  .hamburger         { display: flex; }
  .section           { padding: 48px 0; }
  .form-row          { grid-template-columns: 1fr; }
  .hero              { padding: 56px 0 48px; }
  .product-grid      { grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); }
  .steps             { grid-template-columns: 1fr 1fr; }
  .footer-links      { grid-template-columns: 1fr; }
}
@media (max-width: 400px) {
  .steps             { grid-template-columns: 1fr; }
}