/* ==========================================================================
   United Foods — Global Theme & Design Tokens
   Theme: Nature Green + Peanut Amber (Section 0.3 / 0.4)
   All colours are defined ONCE here as tokens and reused site-wide.
   No page may use one-off colours.
   ========================================================================== */
:root {
  /* Brand palette */
  --color-primary: #215732;        /* deep leaf green */
  --color-primary-dark: #163b22;
  --color-primary-light: #3a7d4f;
  --color-primary-050: #eef5f0;

  --color-accent: #d99a2b;         /* peanut amber */
  --color-accent-dark: #b87e1d;
  --color-accent-light: #f4c56a;

  --color-bg: #fbf8f1;             /* cream background */
  --color-surface: #ffffff;
  --color-surface-alt: #f3efe4;

  --color-text: #2a2a26;           /* charcoal */
  --color-muted: #6b6b63;
  --color-border: #e4ded0;

  --color-success: #2e7d32;
  --color-success-bg: #e8f5e9;
  --color-success-border: #bfe3c2;
  --color-danger: #c0392b;
  --color-danger-bg: #fdecea;
  --color-danger-border: #f5c6c0;
  --color-warning: #8a5a00;
  --color-warning-bg: #fff4dc;
  --color-warning-border: #f2d49b;
  --color-whatsapp: #25d366;

  /* Text and icons placed on coloured fills */
  --color-on-primary: #ffffff;     /* on primary, WhatsApp, success and danger fills */
  --color-on-accent: #2a2a26;      /* on the amber accent */

  /* Dark surfaces (footer, admin sidebar) */
  --color-on-dark: #dfe9e0;
  --color-on-dark-link: #cfe0d4;
  --color-on-dark-muted: #b9cabd;
  --color-on-dark-border: rgba(255,255,255,.15);
  --color-on-dark-hover: rgba(255,255,255,.08);
  --color-on-dark-chip: rgba(255,255,255,.12);
  --color-footer-bg: var(--color-primary-dark);
  --color-footer-text: var(--color-on-dark);
  --color-footer-link: var(--color-on-dark-link);
  --color-footer-heading: var(--color-on-primary);
  --color-footer-muted: var(--color-on-dark-muted);
  --color-footer-border: var(--color-on-dark-border);

  /* Translucent layers */
  --color-overlay: rgba(0,0,0,.4);
  --color-overlay-strong: rgba(0,0,0,.5);
  --color-on-image: rgba(255,255,255,.5);
  --color-on-image-control: rgba(0,0,0,.35);
  --color-on-primary-soft: rgba(255,255,255,.15);
  --color-on-primary-line: rgba(255,255,255,.25);

  /* Browser-tab mock-ups for the favicon contrast preview (Section 9.2) */
  --color-tab-light: #dee1e6;
  --color-tab-light-active: #ffffff;
  --color-tab-dark: #202124;
  --color-tab-dark-active: #35363a;
  --color-tab-dark-text: #e8eaed;

  /* Typography */
  --font-sans: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --font-head: Georgia, "Times New Roman", serif;

  /* Spacing / layout */
  --maxw: 1200px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(22,59,34,.08);
  --shadow: 0 6px 20px rgba(22,59,34,.12);
  --shadow-up: 0 -2px 10px rgba(0,0,0,.08);

  /* Header (Section 1.5: logo 40–60 px desktop, 32–40 px mobile) */
  --header-h: 68px;
  --logo-h: 48px;
  --logo-h-mobile: 36px;

  /* Sticky element heights (Section 5.3 — nothing hidden behind sticky bars) */
  --sticky-footer-h: 60px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* Optional dark surfaces (footer uses primary-dark); full dark mode kept simple */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4 { font-family: var(--font-head); line-height: 1.25; color: var(--color-primary-dark); margin: 0 0 .5em; }
h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-accent-dark); }
img { max-width: 100%; height: auto; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }
.section { padding: 48px 0; }
.text-muted { color: var(--color-muted); }
.center { text-align: center; }

/* Buttons */
.btn { display:inline-flex; align-items:center; justify-content:center; gap:.5rem; cursor:pointer;
  padding:.7rem 1.3rem; border-radius: var(--radius-sm); border:2px solid transparent; font-family:inherit; line-height:1.2;
  font-weight:600; font-size:.95rem; transition: background-color .15s ease, color .15s ease, border-color .15s ease, filter .15s ease; text-align:center; }
.btn:focus-visible, .icon-btn:focus-visible { outline:3px solid var(--color-accent); outline-offset:2px; }
.btn[disabled] { opacity:.6; cursor:not-allowed; }
.btn svg { flex-shrink:0; }
.btn-primary { background: var(--color-primary); color:var(--color-on-primary); }
.btn-primary:hover { background: var(--color-primary-dark); color:var(--color-on-primary); }
.btn-accent { background: var(--color-accent); color:var(--color-on-accent); }
.btn-accent:hover { background: var(--color-accent-dark); color:var(--color-on-primary); }
.btn-outline { background:transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color:var(--color-on-primary); }
.btn-whatsapp { background: var(--color-whatsapp); color:var(--color-on-primary); }
.btn-whatsapp:hover { filter:brightness(.95); color:var(--color-on-primary); }
.btn-sm { padding:.45rem .8rem; font-size:.85rem; }
.icon-btn { display:inline-flex; align-items:center; justify-content:center; width:40px; height:40px; border-radius:50%;
  border:0; background:transparent; color:var(--color-primary-dark); cursor:pointer; flex-shrink:0; }
.icon-btn:hover { background:var(--color-primary-050); color:var(--color-primary); }
.visually-hidden { position:absolute !important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* ===== Header / Menu bar (Section 1) ===== */
.site-header { position:sticky; top:0; z-index:50; background: var(--color-surface);
  box-shadow: var(--shadow-sm); border-bottom:1px solid var(--color-border); }
.header-inner { display:flex; align-items:center; gap:16px; min-height:var(--header-h); }
.brand-logo { display:flex; align-items:center; flex-shrink:0; }
.brand-logo img { height:var(--logo-h); width:auto; max-width:240px; display:block; object-fit:contain; object-position:left center; }
.brand-logo .brand-text { font-family:var(--font-head); font-size:1.3rem; font-weight:700; color:var(--color-primary-dark); }
.main-nav { display:flex; gap:18px; margin-left:12px; }
.main-nav a { color:var(--color-text); font-weight:500; padding:6px 2px; border-bottom:2px solid transparent; }
.main-nav a:hover, .main-nav a.active { color:var(--color-primary); border-bottom-color:var(--color-accent); }
.header-actions { margin-left:auto; display:flex; align-items:center; gap:8px; }
.header-action { min-height:40px; white-space:nowrap; }
.popover-anchor { position:relative; }
.hamburger { display:none; align-items:center; justify-content:center; width:40px; height:40px; background:none; border:0;
  border-radius:50%; cursor:pointer; color:var(--color-primary-dark); }
.hamburger:hover { background:var(--color-primary-050); }

/* Mobile sidebar */
.mobile-sidebar { position:fixed; inset:0 0 0 auto; width:min(82%,320px); background:var(--color-surface);
  transform:translateX(100%); transition:transform .25s ease; z-index:70; padding:16px 20px calc(20px + var(--safe-bottom)); box-shadow:var(--shadow); overflow-y:auto; visibility:hidden; }
.mobile-sidebar.open { transform:translateX(0); visibility:visible; }
.mobile-overlay { position:fixed; inset:0; background:var(--color-overlay); opacity:0; pointer-events:none; transition:opacity .2s; z-index:60; }
.mobile-overlay.open { opacity:1; pointer-events:auto; }
.mobile-sidebar-head { display:flex; justify-content:space-between; align-items:center; margin-bottom:8px; }
.mobile-sidebar-head .hamburger { display:inline-flex; }
.mobile-sidebar nav a { display:flex; align-items:center; gap:10px; padding:12px 0; border-bottom:1px solid var(--color-border); color:var(--color-text); }
.mobile-sidebar nav a.active { color:var(--color-primary); font-weight:600; }
.mobile-sidebar nav a svg { color:var(--color-primary); }
.mobile-sidebar .sidebar-actions { display:grid; gap:8px; margin-top:18px; }

@media (max-width: 1180px){
  /* Icon-only action buttons; the label stays available to screen readers via aria-label */
  .header-actions .header-action .label { display:none; }
  .header-actions .header-action { width:40px; height:40px; padding:0; border-radius:50%; }
}
@media (max-width: 860px){
  :root { --header-h: 60px; }
  .main-nav { display:none; }
  .hamburger { display:inline-flex; }
  .header-inner { gap:8px; }
  .header-actions { gap:6px; }
  .brand-logo img { height:var(--logo-h-mobile); max-width:150px; }
}
@media (max-width: 480px){
  /* Search and Account move into the slide-out menu; Callback, WhatsApp and Business Inquiry stay (Section 1.4) */
  .header-search, .header-account { display:none !important; }
  .brand-logo img { max-width:min(150px, calc(100vw - 226px)); }
}

/* Business Inquiry modal (Section 1.2) */
.modal.modal-wide { max-width:600px; }
.bi-form .form-grid { display:grid; grid-template-columns:1fr 1fr; gap:0 12px; }
.bi-form .field { margin-bottom:12px; }
.bi-form label, .bi-form legend, .bi-form .field-label { display:block; font-weight:600; font-size:.88rem; margin-bottom:4px; color:var(--color-text); }
.bi-form fieldset { border:0; padding:0; margin:0 0 12px; }
.bi-form .req { color:var(--color-danger); }
.bi-form .identity-field input.cc-input { min-width:0; flex:1; }
.chip-group { display:flex; flex-wrap:wrap; gap:8px; }
.chip { position:relative; display:inline-flex; }
.chip input { position:absolute; opacity:0; width:100%; height:100%; margin:0; cursor:pointer; }
.chip span { display:inline-block; padding:6px 12px; border:1px solid var(--color-border); border-radius:20px; font-size:.85rem; background:var(--color-surface); color:var(--color-text); }
.chip input:checked + span { background:var(--color-primary-050); border-color:var(--color-primary); color:var(--color-primary-dark); font-weight:600; }
.chip input:focus-visible + span { outline:2px solid var(--color-accent); outline-offset:2px; }
@media (max-width:600px){ .bi-form .form-grid { grid-template-columns:1fr; } }

/* ===== Footer (Section 6) ===== */
.site-footer { background: var(--color-footer-bg); color:var(--color-footer-text); margin-top:48px; font-size:.92rem; }
.site-footer a { color:var(--color-footer-link); }
.site-footer a:hover, .site-footer a:focus-visible { color:var(--color-accent-light); }
.footer-top { display:grid; grid-template-columns:minmax(230px,1.25fr) minmax(0,3fr) minmax(230px,1.15fr); gap:36px; padding:52px 0 32px; }
.footer-logo { display:inline-block; }
.footer-logo img { height:44px; width:auto; max-width:220px; display:block; }
.footer-logo .brand-text { font-family:var(--font-head); font-size:1.4rem; font-weight:700; color:var(--color-footer-heading); }
.footer-tagline { margin:10px 0 16px; color:var(--color-footer-muted); }
.footer-contact { list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.footer-contact li { display:flex; gap:10px; align-items:flex-start; }
.footer-contact svg { margin-top:3px; color:var(--color-accent-light); flex-shrink:0; }
.footer-ids { list-style:none; margin:16px 0 0; padding:0; display:flex; flex-wrap:wrap; gap:6px; }
.footer-ids li { background:var(--color-on-dark-chip); border-radius:20px; padding:3px 10px; font-size:.78rem; color:var(--color-footer-text); }
.footer-columns { display:grid; grid-template-columns:repeat(auto-fit, minmax(150px, 1fr)); gap:24px; }
.site-footer .location-links ul { display:block; }
.site-footer .location-links li { font-size:inherit; }
.footer-col summary { list-style:none; display:block; }
.footer-col summary::-webkit-details-marker { display:none; }
.footer-heading { color:var(--color-footer-heading); font-family:var(--font-head); font-size:1rem; margin:0 0 14px; }
.footer-col ul { list-style:none; margin:0; padding:0; }
.footer-col li { margin:9px 0; }
.footer-link-button { background:none; border:0; padding:0; font:inherit; color:var(--color-footer-link); cursor:pointer; text-align:left; }
.footer-link-button:hover, .footer-link-button:focus-visible { color:var(--color-accent-light); }
.footer-newsletter p { color:var(--color-footer-muted); margin:0 0 10px; }
.newsletter-form { display:flex; gap:8px; margin-top:10px; flex-wrap:wrap; }
.newsletter-form input { flex:1; min-width:0; padding:.6rem; border-radius:var(--radius-sm); border:1px solid var(--color-border); background:var(--color-surface); color:var(--color-text); }
.footer-social { display:flex; flex-wrap:wrap; gap:10px; margin-top:18px; }
.footer-social a { width:38px; height:38px; border-radius:50%; display:inline-flex; align-items:center; justify-content:center; background:var(--color-on-dark-chip); color:var(--color-footer-heading); }
.footer-social a:hover, .footer-social a:focus-visible { background:var(--color-accent); color:var(--color-on-accent); }
.footer-bottom { border-top:1px solid var(--color-footer-border); padding:18px 0; font-size:.85rem; display:flex; flex-wrap:wrap; gap:8px 20px; justify-content:space-between; color:var(--color-footer-muted); }
@media (max-width: 1080px){
  .footer-top { grid-template-columns:1fr 1fr; }
  .footer-columns { grid-column:1 / -1; }
}
@media (max-width: 860px){
  /* Columns collapse into accordions (Section 6.2) */
  .footer-top { grid-template-columns:1fr; gap:0; padding:36px 0 8px; }
  .footer-brand { padding-bottom:20px; }
  .footer-columns { grid-template-columns:1fr; gap:0; }
  .footer-col { border-top:1px solid var(--color-footer-border); }
  .footer-col summary { cursor:pointer; display:flex; justify-content:space-between; align-items:center; padding:14px 0; }
  .footer-col summary .footer-heading { margin:0; }
  .footer-col summary::after { content:"+"; font-size:1.3rem; line-height:1; color:var(--color-footer-muted); }
  .footer-col[open] summary::after { content:"\2212"; }
  .footer-col ul { padding-bottom:12px; }
  .footer-newsletter { border-top:1px solid var(--color-footer-border); padding:20px 0; }
  .footer-bottom { flex-direction:column; align-items:center; text-align:center; }
}

/* ===== Mobile sticky footer bar (Section 5.1) ===== */
.mobile-sticky-footer { position:fixed; left:0; right:0; bottom:0; z-index:55;
  display:none; background:var(--color-surface); border-top:1px solid var(--color-border);
  box-shadow:var(--shadow-up);
  padding-bottom: var(--safe-bottom); }
.mobile-sticky-footer .msf-grid { display:flex; }
.mobile-sticky-footer a { flex:1; position:relative; display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:3px; padding:6px 0; font-size:.72rem; font-weight:600; color:var(--color-muted); height:var(--sticky-footer-h); }
.mobile-sticky-footer a svg { color:var(--color-primary-dark); }
.mobile-sticky-footer a.active, .mobile-sticky-footer a.active svg { color:var(--color-primary); }
.mobile-sticky-footer a.active::before { content:""; position:absolute; top:0; left:28%; right:28%; height:3px; border-radius:0 0 3px 3px; background:var(--color-accent); }
.mobile-sticky-footer a:hover, .mobile-sticky-footer a:hover svg { color:var(--color-accent-dark); }
@media (max-width: 860px){ .mobile-sticky-footer { display:block; } body { padding-bottom: calc(var(--sticky-footer-h) + var(--safe-bottom)); } }

/* ===== Floating WhatsApp (desktop only; mobile uses sticky footer) (Section 15.1) ===== */
.wa-float { position:fixed; right:20px; bottom:24px; z-index:45; width:56px; height:56px; border-radius:50%;
  background:var(--color-whatsapp); color:var(--color-on-primary); display:flex; align-items:center; justify-content:center;
  font-size:1.7rem; box-shadow:var(--shadow); }
@media (max-width: 860px){ .wa-float { display:none; } }

/* ===== Cards ===== */
.card { background:var(--color-surface); border:1px solid var(--color-border); border-radius:var(--radius); box-shadow:var(--shadow-sm); overflow:hidden; }
.grid { display:grid; gap:20px; }
.grid-3 { grid-template-columns:repeat(3,1fr); }
.grid-4 { grid-template-columns:repeat(4,1fr); }
@media (max-width: 860px){ .grid-3,.grid-4 { grid-template-columns:1fr; } }

/* ===== Hero ===== */
.hero { background:linear-gradient(120deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color:var(--color-on-primary); }
.hero h1 { color:var(--color-on-primary); }
.hero .container { padding-top:56px; padding-bottom:56px; }
.badge-row { display:flex; flex-wrap:wrap; gap:10px; margin-top:18px; }
.badge { background:var(--color-on-primary-soft); border:1px solid var(--color-on-primary-line); padding:6px 12px; border-radius:20px; font-size:.8rem; }

/* ===== Forms / alerts ===== */
.form-control { width:100%; padding:.7rem; border:1px solid var(--color-border); border-radius:var(--radius-sm); font-size:1rem; background:var(--color-surface); color:var(--color-text); font-family:inherit; }
.alert { padding:.8rem 1rem; border-radius:var(--radius-sm); margin:12px 0; }
.alert-success { background:var(--color-success-bg); color:var(--color-success); border:1px solid var(--color-success-border); }
.alert-danger { background:var(--color-danger-bg); color:var(--color-danger); border:1px solid var(--color-danger-border); }
.alert-warning { background:var(--color-warning-bg); color:var(--color-warning); border:1px solid var(--color-warning-border); }

/* ===== Top Lead Banner (Section 2) ===== */
.lead-banner { background:var(--color-accent); color:var(--color-on-accent); }
.lead-banner .lb-inner { position:relative; display:flex; align-items:center; gap:14px; padding-top:8px; padding-bottom:8px; padding-right:56px; flex-wrap:wrap; }
.lead-banner .lb-msg { display:inline-flex; align-items:center; gap:8px; font-weight:600; font-size:.92rem; }
.lead-banner .lb-msg svg { flex-shrink:0; }
.lead-banner form { display:flex; gap:8px; align-items:stretch; margin-left:auto; flex-wrap:wrap; }
.lead-banner .lb-close { position:absolute; right:12px; top:50%; transform:translateY(-50%); background:none; border:0; cursor:pointer; color:var(--color-on-accent); opacity:.75; width:36px; height:36px; border-radius:50%; display:inline-flex; align-items:center; justify-content:center; }
.lead-banner .lb-close:hover, .lead-banner .lb-close:focus-visible { opacity:1; background:var(--color-accent-light); }
.lead-banner .lb-success { font-weight:600; padding-top:8px; padding-bottom:8px; }
@media (max-width:860px){
  .lead-banner .lb-inner { gap:8px; padding-right:16px; }
  .lead-banner .lb-msg { width:100%; padding-right:32px; }
  .lead-banner form { margin-left:0; width:100%; }
  .lead-banner form .identity-field { flex:1; min-width:0; }
  .lead-banner form .identity-field input.cc-input { min-width:0; }
  .lead-banner .lb-close { top:4px; right:8px; transform:none; }
}

/* ===== Country-code selector + single-entry field (Section 2.2) ===== */
.identity-field { display:flex; align-items:stretch; position:relative; }
.cc-select { display:flex; align-items:center; gap:6px; padding:.55rem .6rem; border:1px solid var(--color-border);
  border-right:0; border-radius:var(--radius-sm) 0 0 var(--radius-sm); background:var(--color-surface); color:var(--color-text); cursor:pointer; white-space:nowrap; font-size:.9rem; }
.cc-select .cc-flag { font-size:1.1rem; }
.identity-field input.cc-input { border-radius:0 var(--radius-sm) var(--radius-sm) 0; border-left:0; min-width:180px; }
.identity-field.email-mode .cc-select { display:none; }
.identity-field.email-mode input.cc-input { border-radius:var(--radius-sm); border-left:1px solid var(--color-border); }
.cc-dropdown { position:absolute; top:calc(100% + 4px); left:0; width:280px; max-width:90vw; max-height:280px; overflow:auto;
  background:var(--color-surface); border:1px solid var(--color-border); border-radius:var(--radius-sm); box-shadow:var(--shadow); z-index:90; display:none; }
.cc-dropdown.open { display:block; }
.cc-dropdown .cc-search { position:sticky; top:0; background:var(--color-surface); padding:8px; border-bottom:1px solid var(--color-border); }
.cc-dropdown .cc-search input { width:100%; padding:.45rem; border:1px solid var(--color-border); border-radius:var(--radius-sm); }
.cc-dropdown ul { list-style:none; margin:0; padding:4px 0; }
.cc-dropdown li { padding:.5rem .7rem; cursor:pointer; display:flex; gap:8px; align-items:center; font-size:.9rem; }
.cc-dropdown li:hover, .cc-dropdown li.active { background:var(--color-primary-050); }
.cc-dropdown li .dial { margin-left:auto; color:var(--color-muted); }

/* ===== Simple data tables (admin + account) ===== */
.table { width:100%; border-collapse:collapse; background:var(--color-surface); }
.table th, .table td { text-align:left; padding:10px 12px; border-bottom:1px solid var(--color-border); font-size:.9rem; vertical-align:top; }
.table th { background:var(--color-surface-alt); font-weight:600; }
.table tr:hover td { background:var(--color-primary-050); }
.pill { display:inline-block; padding:2px 10px; border-radius:20px; font-size:.75rem; background:var(--color-primary-050); color:var(--color-primary-dark); }
.toolbar { display:flex; gap:10px; flex-wrap:wrap; align-items:center; margin-bottom:16px; }
.toolbar input, .toolbar select { padding:.5rem; border:1px solid var(--color-border); border-radius:var(--radius-sm); }

/* ===== Account area ===== */
.account-grid { display:grid; grid-template-columns:220px 1fr; gap:24px; align-items:start; }
.account-nav { background:var(--color-surface); border:1px solid var(--color-border); border-radius:var(--radius); overflow:hidden; }
.account-nav a { display:block; padding:12px 16px; border-bottom:1px solid var(--color-border); color:var(--color-text); }
.account-nav a:hover, .account-nav a.active { background:var(--color-primary-050); color:var(--color-primary-dark); }
@media (max-width:760px){ .account-grid { grid-template-columns:1fr; } }

/* ===== Popover panel anchored below a button (Sections 1.2 / 1.3) ===== */
.popover-panel { position:absolute; right:0; top:calc(100% + 10px); width:340px; min-width:300px; max-width:calc(100vw - 32px);
  background:var(--color-surface); border:1px solid var(--color-border); border-radius:var(--radius);
  box-shadow:var(--shadow); padding:12px 16px 16px; z-index:80; display:none; text-align:left; }
.popover-panel.open { display:block; }
.popover-panel::before { content:""; position:absolute; top:-7px; right:var(--popover-arrow-right, 22px); width:12px; height:12px;
  background:var(--color-surface); border-left:1px solid var(--color-border); border-top:1px solid var(--color-border); transform:rotate(45deg); }
.popover-head { display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:8px; }
.popover-title { margin:0; font-weight:700; color:var(--color-primary-dark); }
.popover-close { width:36px; height:36px; margin-right:-8px; }
.popover-panel .identity-field, .popover-panel .form-control { margin-bottom:8px; }
.popover-panel .identity-field input.cc-input { min-width:0; flex:1; }
.popover-panel .popover-submit { width:100%; }
@media (max-width:600px){
  /* Full-width panel directly under the bar, scrollable and sized to the visible viewport so it
     stays usable with the on-screen keyboard open (Section 1.4). */
  .popover-anchor { position:static; }
  .popover-panel { left:0; right:0; top:100%; width:auto; min-width:0; max-width:none;
    border-left:0; border-right:0; border-radius:0 0 var(--radius) var(--radius);
    max-height:calc(var(--vvh, 100dvh) - var(--popover-top, 64px) - 8px); overflow-y:auto; overscroll-behavior:contain;
    border-top:3px solid var(--color-accent); }
  .popover-panel::before { display:none; }
}

/* ===== Product cards (Section 18.3) ===== */
.product-card { background:var(--color-surface); border:1px solid var(--color-border); border-radius:var(--radius); overflow:hidden; display:flex; flex-direction:column; box-shadow:var(--shadow-sm); transition:box-shadow .15s, transform .15s; }
.product-card:hover { box-shadow:var(--shadow); transform:translateY(-2px); }
.product-card .pc-img { aspect-ratio:1/1; background:var(--color-surface-alt); overflow:hidden; display:block; }
.product-card .pc-img img { width:100%; height:100%; object-fit:cover; }
.product-card .pc-body { padding:14px; display:flex; flex-direction:column; gap:8px; flex:1; }
.product-card .pc-name { font-weight:600; color:var(--color-primary-dark); font-size:1rem; }
.product-card .pc-spec { font-size:.82rem; color:var(--color-muted); }
.product-card .pc-actions { margin-top:auto; display:flex; gap:8px; }
.product-card .pc-actions .btn { flex:1; justify-content:center; }

/* ===== Horizontal swipe carousel (Section 4.3) ===== */
.section-head { display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; gap:12px; }
.carousel { display:grid; grid-auto-flow:column; grid-auto-columns: calc((100% - 3 * 16px) / 4); gap:16px; overflow-x:auto; scroll-snap-type:x mandatory; scroll-behavior:smooth; overscroll-behavior-x:contain; padding:4px 2px 10px; -webkit-overflow-scrolling:touch; }
.carousel > * { scroll-snap-align:start; min-width:0; }
.carousel > * > .product-card { height:100%; }
.carousel::-webkit-scrollbar { height:6px; }
.carousel::-webkit-scrollbar-thumb { background:var(--color-border); border-radius:6px; }
@media (min-width:861px) and (max-width:1100px){ .carousel { grid-auto-columns: calc((100% - 2 * 16px) / 3); } }
@media (min-width:861px){ .grid-auto { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; } }
@media (max-width:860px){
  /* one card at a time with a peek of the next (Instagram-style swipe) + position dots */
  .carousel { grid-auto-columns: 86%; gap:12px; scrollbar-width:none; }
  .carousel > * { scroll-snap-stop:always; }
  .carousel::-webkit-scrollbar { display:none; }
}

/* ===== Hero banner slider (Section 3.4) ===== */
.banner-slider { position:relative; overflow:hidden; background:var(--color-primary-dark); }
.banner-track { display:flex; transition:transform .45s ease; }
.banner-slide { min-width:100%; position:relative; }
.banner-slide img { width:100%; height:auto; display:block; }
.banner-dots { position:absolute; bottom:8px; left:0; right:0; display:flex; gap:2px; justify-content:center; }
.banner-dots button { border-radius:50%; border:0; cursor:pointer; }
.banner-arrow { position:absolute; top:50%; transform:translateY(-50%); background:color-mix(in srgb, var(--color-text) 45%, transparent); color:var(--color-surface); border:0; width:44px; height:44px; border-radius:50%; cursor:pointer; font-size:1.4rem; line-height:1; }
.banner-arrow:hover { background:color-mix(in srgb, var(--color-text) 65%, transparent); }
.banner-arrow.prev { left:12px; } .banner-arrow.next { right:12px; }
@media (max-width:860px){ .banner-arrow { display:none; } }

/* ===== Product detail page (Section 17.2) ===== */
/* One gallery for every screen: a scroll-snap track of slides (images + videos).
   Desktop: sticky left half with thumbnails + arrows. Mobile: horizontal swipe with dots. */
.product-layout { display:grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap:40px; align-items:start; }
.gallery-sticky { position:sticky; top:84px; }
.gallery-stage { position:relative; }
.gallery-track { display:grid; grid-auto-flow:column; grid-auto-columns:100%; overflow-x:auto; overflow-y:hidden; scroll-snap-type:x mandatory; scroll-behavior:smooth; overscroll-behavior-x:contain; -webkit-overflow-scrolling:touch; scrollbar-width:none;
  border:1px solid var(--color-border); border-radius:var(--radius); background:var(--color-surface-alt); }
.gallery-track::-webkit-scrollbar { display:none; }
.gallery-slide { margin:0; position:relative; aspect-ratio:1/1; overflow:hidden; scroll-snap-align:start; scroll-snap-stop:always; display:flex; align-items:center; justify-content:center; }
.gallery-slide img, .gallery-slide video { width:100%; height:100%; object-fit:cover; display:block; }
.gallery-slide video { object-fit:contain; background:var(--color-primary-dark); }
.gallery-zoom { display:block; width:100%; height:100%; padding:0; border:0; background:none; cursor:zoom-in; }
.gallery-dots { display:none; }
.gallery-thumbs { display:flex; gap:8px; margin-top:10px; flex-wrap:wrap; }
.gallery-thumbs button { position:relative; width:64px; height:64px; padding:0; overflow:hidden; cursor:pointer; background:var(--color-surface-alt); border:2px solid var(--color-border); border-radius:var(--radius-sm); }
.gallery-thumbs img { width:100%; height:100%; object-fit:cover; display:block; }
.gallery-thumbs button.active { border-color:var(--color-accent); }
.spec-table { width:100%; border-collapse:collapse; }
.spec-table th, .spec-table td { text-align:left; padding:8px 10px; border-bottom:1px solid var(--color-border); font-size:.9rem; }
.spec-table th { width:40%; color:var(--color-primary-dark); }
.faq-item { border-bottom:1px solid var(--color-border); padding:12px 0; }
.faq-item summary { font-weight:600; cursor:pointer; color:var(--color-primary-dark); }
.doc-list a { display:inline-flex; align-items:center; gap:6px; padding:8px 12px; border:1px solid var(--color-border); border-radius:var(--radius-sm); margin:4px 6px 4px 0; }
@media (max-width:860px){
  .product-layout { grid-template-columns:1fr; gap:20px; }
  .gallery-sticky { position:static; }
  /* Mobile gallery = horizontal swipe with position dots, never stacked (Section 17.2) */
  .gallery-thumbs { display:none; }
  .gallery-dots { display:flex; justify-content:center; gap:6px; margin-top:10px; }
}

/* ===== Sticky inquiry bar (B2B analogue of sticky Add to Cart, Section 5.2/5.3) ===== */
.sticky-cta { position:fixed; left:0; right:0; z-index:54; display:none; gap:10px; padding:10px 16px;
  background:var(--color-surface); border-top:1px solid var(--color-border); box-shadow:var(--shadow-up);
  bottom: calc(var(--sticky-footer-h) + var(--safe-bottom)); }
.sticky-cta.show { display:flex; }
.sticky-cta .btn { flex:1; justify-content:center; }
@media (min-width:861px){ .sticky-cta { bottom:0; } .sticky-cta.show { display:none; } } /* desktop uses inline CTA */

/* ===== Blog ===== */
.blog-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.blog-card img { aspect-ratio:1.9/1; object-fit:cover; width:100%; }
.blog-layout { display:grid; grid-template-columns: 1fr 300px; gap:32px; align-items:start; }
.blog-sidebar { position:sticky; top:84px; display:flex; flex-direction:column; gap:16px; }
.blog-body { max-width:760px; }
.blog-body img { border-radius:var(--radius); margin:16px 0; }
.toc { background:var(--color-surface-alt); border-radius:var(--radius); padding:16px; }
.toc ul { margin:6px 0 0; padding-left:18px; }
@media (max-width:860px){ .blog-grid { grid-template-columns:1fr; } .blog-layout { grid-template-columns:1fr; } .blog-sidebar { position:static; } }

/* ===== Modal (product inquiry — Phase 3 single-step; multi-step in Phase 4) ===== */
.modal-overlay { position:fixed; inset:0; background:var(--color-overlay-strong); display:none; align-items:center; justify-content:center; z-index:100; padding:16px; }
.modal-overlay.open { display:flex; }
.modal { background:var(--color-surface); border-radius:var(--radius); max-width:440px; width:100%; padding:24px; box-shadow:var(--shadow); max-height:90vh; overflow:auto; }
.modal h3 { margin-top:0; }
.modal .modal-close { float:right; background:none; border:0; font-size:1.4rem; cursor:pointer; }

/* Skip-link for accessibility */
.skip-link { position:absolute; left:-999px; }
.skip-link:focus { left:16px; top:8px; background:var(--color-surface); padding:8px 12px; z-index:100; border-radius:6px; }