/* ===== HELIX RESEARCH LABS — Storefront ===== */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.25rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;

  --radius-sm: 0.375rem; --radius-md: 0.625rem; --radius-lg: 0.875rem;
  --radius-xl: 1.25rem; --radius-full: 9999px;
  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --content-wide: 1240px;
}

:root, [data-theme='light'] {
  --color-bg: #f4f6f7;
  --color-surface: #ffffff;
  --color-surface-2: #fbfcfd;
  --color-surface-offset: #eef1f3;
  --color-divider: #e2e7ea;
  --color-border: #d3dade;
  --color-text: #0c1a1f;
  --color-text-muted: #5a6a70;
  --color-text-faint: #98a4a9;
  --color-text-inverse: #f7fafa;
  --color-primary: #0a7d82;
  --color-primary-hover: #086268;
  --color-primary-active: #064c50;
  --color-primary-soft: #d9eced;
  --color-accent: #14c0a8;
  --color-navy: #0b2733;
  --color-success: #1f8a4c;
  --color-success-soft: #d6efe0;
  --color-warning: #b46414;
  --color-warning-soft: #f6e7d4;
  --color-danger: #c0392b;
  --color-danger-soft: #f7dcd8;
  --shadow-sm: 0 1px 2px rgba(11, 39, 51, 0.06);
  --shadow-md: 0 6px 20px rgba(11, 39, 51, 0.09);
  --shadow-lg: 0 18px 48px rgba(11, 39, 51, 0.14);
}

[data-theme='dark'] {
  --color-bg: #0a1316;
  --color-surface: #10201f;
  --color-surface-2: #142625;
  --color-surface-offset: #16292a;
  --color-divider: #1d3535;
  --color-border: #274240;
  --color-text: #dde7e6;
  --color-text-muted: #8aa09e;
  --color-text-faint: #5c726f;
  --color-text-inverse: #08110f;
  --color-primary: #2bbcb0;
  --color-primary-hover: #45cdc0;
  --color-primary-active: #5fd8cc;
  --color-primary-soft: #163332;
  --color-accent: #2fd9bf;
  --color-navy: #03141a;
  --color-success: #4cc47e;
  --color-success-soft: #16332a;
  --color-warning: #e0a04a;
  --color-warning-soft: #33271a;
  --color-danger: #e36459;
  --color-danger-soft: #361d1c;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 18px 48px rgba(0,0,0,0.55);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  min-height: 100dvh; line-height: 1.6; font-family: var(--font-body);
  font-size: var(--text-base); color: var(--color-text); background: var(--color-bg);
  transition: background var(--transition), color var(--transition);
}
img, svg { display: block; max-width: 100%; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
input, select, textarea { font: inherit; color: inherit; }
h1,h2,h3,h4 { font-family: var(--font-display); line-height: 1.12; text-wrap: balance; letter-spacing: -0.02em; }
::selection { background: var(--color-primary-soft); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: var(--radius-sm); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

.wrap { width: 100%; max-width: var(--content-wide); margin-inline: auto; padding-inline: var(--space-5); }

/* ===== Top compliance bar ===== */
.topbar {
  background: var(--color-navy); color: #cfe7e6; font-size: var(--text-xs);
  text-align: center; padding: var(--space-2) var(--space-4); letter-spacing: 0.02em;
}
.topbar strong { color: #fff; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100; background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  backdrop-filter: blur(14px); border-bottom: 1px solid var(--color-divider);
}
.header-inner { display: flex; align-items: center; gap: var(--space-6); padding-block: var(--space-3); }
.brand { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; }
.brand svg { width: 34px; height: 34px; color: var(--color-primary); }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.03em; line-height: 1; }
.brand-name span { color: var(--color-primary); }
.brand-sub { font-size: 0.62rem; letter-spacing: 0.28em; color: var(--color-text-faint); text-transform: uppercase; margin-top: 2px; }

.header-search { flex: 1; position: relative; max-width: 520px; }
.header-search input {
  width: 100%; padding: var(--space-3) var(--space-4) var(--space-3) 2.75rem;
  background: var(--color-surface-offset); border: 1px solid var(--color-border);
  border-radius: var(--radius-full); font-size: var(--text-sm); transition: var(--transition);
}
.header-search input:focus { outline: none; border-color: var(--color-primary); background: var(--color-surface); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.header-search svg { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--color-text-faint); }

.header-actions { display: flex; align-items: center; gap: var(--space-2); margin-left: auto; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px;
  border-radius: var(--radius-full); color: var(--color-text-muted); transition: var(--transition); position: relative;
}
.icon-btn:hover { background: var(--color-surface-offset); color: var(--color-primary); }
.icon-btn svg { width: 21px; height: 21px; }
.cart-count {
  position: absolute; top: 2px; right: 2px; background: var(--color-primary); color: #fff;
  font-size: 0.65rem; font-weight: 700; min-width: 18px; height: 18px; padding: 0 4px;
  border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center;
}
.cart-count.empty { display: none; }

/* ===== Category nav ===== */
.catnav { border-bottom: 1px solid var(--color-divider); background: var(--color-surface); overflow-x: auto; -webkit-overflow-scrolling: touch; }
.catnav-inner { display: flex; gap: var(--space-1); padding-block: var(--space-2); white-space: nowrap; }
.catnav button {
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-full); font-size: var(--text-sm);
  font-weight: 500; color: var(--color-text-muted); transition: var(--transition);
}
.catnav button:hover { background: var(--color-surface-offset); color: var(--color-text); }
.catnav button.active { background: var(--color-primary); color: #fff; }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden; color: #eafbfa;
  background: radial-gradient(120% 140% at 80% 0%, #0e3a44 0%, var(--color-navy) 55%, #061418 100%);
}
.hero-grid-bg { position: absolute; inset: 0; opacity: 0.5; pointer-events: none; }
.hero-inner { position: relative; padding-block: clamp(var(--space-16), 8vw, var(--space-24)); display: grid; gap: var(--space-6); max-width: 720px; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-xs); letter-spacing: 0.24em; text-transform: uppercase; color: var(--color-accent); font-weight: 600; }
.hero-eyebrow::before { content: ''; width: 28px; height: 1px; background: var(--color-accent); }
.hero h1 { font-size: var(--text-2xl); color: #fff; }
.hero h1 em { font-style: normal; color: var(--color-accent); }
.hero p { font-size: var(--text-lg); color: #b7d3d2; max-width: 56ch; }
.hero-cta { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-top: var(--space-2); }
.hero-stats { display: flex; gap: var(--space-8); margin-top: var(--space-6); flex-wrap: wrap; }
.hero-stat strong { display: block; font-family: var(--font-display); font-size: var(--text-xl); color: #fff; }
.hero-stat span { font-size: var(--text-xs); color: #8fb3b1; letter-spacing: 0.04em; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-full); font-weight: 600;
  font-size: var(--text-sm); transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.btn-accent { background: var(--color-accent); color: #04201c; }
.btn-accent:hover { filter: brightness(1.07); transform: translateY(-1px); }
.btn-ghost { background: transparent; border: 1px solid rgba(255,255,255,0.3); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ===== Trust strip ===== */
.trust { background: var(--color-surface); border-bottom: 1px solid var(--color-divider); }
.trust-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); padding-block: var(--space-5); }
.trust-item { display: flex; align-items: center; gap: var(--space-3); font-size: var(--text-sm); }
.trust-item svg { width: 26px; height: 26px; color: var(--color-primary); flex-shrink: 0; }
.trust-item strong { display: block; font-weight: 600; }
.trust-item span { color: var(--color-text-muted); font-size: var(--text-xs); }

/* ===== Shop layout ===== */
.shop { padding-block: var(--space-12); }
.shop-head { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-8); flex-wrap: wrap; }
.shop-head h2 { font-size: var(--text-xl); }
.shop-head p { color: var(--color-text-muted); font-size: var(--text-sm); }
.shop-controls { display: flex; gap: var(--space-4); align-items: flex-end; flex-wrap: wrap; }
.select-wrap { display: flex; flex-direction: column; gap: 5px; }
.select-wrap label { font-size: 0.66rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-faint); padding-left: 2px; }
.shop-controls select {
  padding: var(--space-2) var(--space-7) var(--space-2) var(--space-4); background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); font-size: var(--text-sm); cursor: pointer; font-weight: 500;
  -webkit-appearance: none; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23889' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right var(--space-3) center;
}
.shop-controls select:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
#typeSelect { font-weight: 700; color: var(--color-primary); border-color: var(--color-primary); }

.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: var(--space-5); }

.card {
  background: var(--color-surface); border: 1px solid var(--color-divider); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column; transition: var(--transition); position: relative;
}
.card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card-vial { aspect-ratio: 1.35 / 1; background: linear-gradient(160deg, var(--color-surface-offset), var(--color-surface-2)); display: flex; align-items: center; justify-content: center; position: relative; border-bottom: 1px solid var(--color-divider); }
.card-vial svg { width: 64px; height: 84px; }
.card-badge { position: absolute; top: var(--space-3); left: var(--space-3); background: var(--color-success-soft); color: var(--color-success); font-size: 0.66rem; font-weight: 700; padding: 3px 9px; border-radius: var(--radius-full); letter-spacing: 0.03em; text-transform: uppercase; }
.card-cat { position: absolute; top: var(--space-3); right: var(--space-3); font-size: 0.6rem; color: var(--color-text-faint); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; max-width: 48%; text-align: right; line-height: 1.2; }
.card-body { padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); flex: 1; }
.card-name { font-family: var(--font-display); font-weight: 600; font-size: var(--text-base); line-height: 1.2; }
.card-spec { font-size: var(--text-sm); color: var(--color-text-muted); }
.card-spec b { color: var(--color-text); font-weight: 600; }
.card-price-row { display: flex; align-items: baseline; gap: var(--space-2); margin-top: auto; }
.card-price { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; color: var(--color-text); }
.card-compare { font-size: var(--text-xs); color: var(--color-text-faint); text-decoration: line-through; }
.card-add {
  margin-top: var(--space-3); width: 100%; padding: var(--space-3); border-radius: var(--radius-md);
  background: var(--color-primary-soft); color: var(--color-primary); font-weight: 600; font-size: var(--text-sm);
  display: flex; align-items: center; justify-content: center; gap: var(--space-2); transition: var(--transition);
}
.card-add:hover { background: var(--color-primary); color: #fff; }
.card-add svg { width: 17px; height: 17px; }
.card-add.added { background: var(--color-success); color: #fff; }

.no-results { text-align: center; padding: var(--space-20) var(--space-4); color: var(--color-text-muted); grid-column: 1 / -1; }
.no-results svg { width: 48px; height: 48px; margin: 0 auto var(--space-4); color: var(--color-text-faint); }

/* ===== Cart drawer ===== */
.overlay { position: fixed; inset: 0; background: rgba(6,20,24,0.5); backdrop-filter: blur(2px); z-index: 200; opacity: 0; visibility: hidden; transition: var(--transition); }
.overlay.open { opacity: 1; visibility: visible; }
.drawer {
  position: fixed; top: 0; right: 0; height: 100dvh; width: min(420px, 100%); background: var(--color-surface);
  z-index: 201; transform: translateX(100%); transition: transform 300ms cubic-bezier(0.16,1,0.3,1);
  display: flex; flex-direction: column; box-shadow: var(--shadow-lg);
}
.drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: var(--space-5); border-bottom: 1px solid var(--color-divider); }
.drawer-head h3 { font-size: var(--text-lg); }
.drawer-body { flex: 1; overflow-y: auto; padding: var(--space-4) var(--space-5); }
.cart-empty { text-align: center; padding: var(--space-16) var(--space-4); color: var(--color-text-muted); }
.cart-empty svg { width: 54px; height: 54px; margin: 0 auto var(--space-4); color: var(--color-text-faint); }
.cart-item { display: flex; gap: var(--space-3); padding: var(--space-4) 0; border-bottom: 1px solid var(--color-divider); }
.cart-item-thumb { width: 56px; height: 56px; border-radius: var(--radius-md); background: var(--color-surface-offset); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cart-item-thumb svg { width: 28px; height: 40px; }
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name { font-weight: 600; font-size: var(--text-sm); }
.cart-item-spec { font-size: var(--text-xs); color: var(--color-text-muted); }
.cart-item-price { font-family: var(--font-display); font-weight: 700; margin-top: var(--space-1); }
.qty { display: inline-flex; align-items: center; gap: var(--space-2); margin-top: var(--space-2); }
.qty button { width: 26px; height: 26px; border-radius: var(--radius-sm); background: var(--color-surface-offset); display: flex; align-items: center; justify-content: center; font-weight: 700; }
.qty button:hover { background: var(--color-primary); color: #fff; }
.qty span { min-width: 22px; text-align: center; font-weight: 600; font-size: var(--text-sm); }
.cart-item-remove { color: var(--color-text-faint); font-size: var(--text-xs); margin-top: var(--space-1); align-self: flex-start; }
.cart-item-remove:hover { color: var(--color-danger); }
.drawer-foot { border-top: 1px solid var(--color-divider); padding: var(--space-5); background: var(--color-surface-2); }
.cart-row { display: flex; justify-content: space-between; font-size: var(--text-sm); margin-bottom: var(--space-2); color: var(--color-text-muted); }
.cart-total { display: flex; justify-content: space-between; font-family: var(--font-display); font-weight: 700; font-size: var(--text-lg); color: var(--color-text); margin: var(--space-3) 0; padding-top: var(--space-3); border-top: 1px solid var(--color-divider); }
.cart-note { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-3); text-align: center; }

/* ===== Modal (product / checkout / compliance) ===== */
.modal { position: fixed; inset: 0; z-index: 210; display: none; align-items: center; justify-content: center; padding: var(--space-4); }
.modal.open { display: flex; }
.modal-card { background: var(--color-surface); border-radius: var(--radius-xl); max-width: 760px; width: 100%; max-height: 90dvh; overflow-y: auto; box-shadow: var(--shadow-lg); position: relative; }
.modal-close { position: absolute; top: var(--space-4); right: var(--space-4); z-index: 2; }
.product-modal { display: grid; grid-template-columns: 1fr 1fr; }
.product-modal-vis { background: linear-gradient(160deg, var(--color-primary-soft), var(--color-surface-offset)); display: flex; align-items: center; justify-content: center; padding: var(--space-12); }
.product-modal-vis svg { width: 120px; height: 160px; }
.product-modal-info { padding: var(--space-8); }
.product-modal-info .card-cat { position: static; display: inline-block; margin-bottom: var(--space-2); }
.product-modal-info h3 { font-size: var(--text-xl); margin-bottom: var(--space-1); }
.pm-spec { color: var(--color-text-muted); margin-bottom: var(--space-4); }
.pm-price { display: flex; align-items: baseline; gap: var(--space-3); margin-bottom: var(--space-4); }
.pm-price .card-price { font-size: 2rem; }
.pm-desc { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-5); line-height: 1.7; }
.pm-meta { display: grid; gap: var(--space-2); margin-bottom: var(--space-6); }
.pm-meta div { display: flex; gap: var(--space-2); font-size: var(--text-sm); align-items: center; }
.pm-meta svg { width: 16px; height: 16px; color: var(--color-success); flex-shrink: 0; }

.pm-benefits { background: var(--color-primary-soft); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-4) var(--space-5); margin-bottom: var(--space-5); }
.pm-benefits h4 { font-family: var(--font-display, inherit); font-size: var(--text-sm); font-weight: 700; margin-bottom: var(--space-3); color: var(--color-text); letter-spacing: -0.01em; }
.pm-benefits ul { list-style: none; display: grid; gap: var(--space-2); margin: 0; padding: 0; }
.pm-benefits li { display: flex; gap: var(--space-2); align-items: flex-start; font-size: var(--text-sm); line-height: 1.5; }
.pm-benefits li svg { width: 16px; height: 16px; color: var(--color-primary); flex-shrink: 0; margin-top: 2px; }
.pm-benefits-note { font-size: 0.72rem; color: var(--color-text-faint); margin: var(--space-3) 0 0; line-height: 1.5; font-style: italic; }

.card-from { font-size: 0.78rem; font-weight: 700; color: var(--color-text-faint); margin-left: 1px; }

.pm-doses { margin-bottom: var(--space-5); }
.pm-doses-label { display: block; font-size: 0.66rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-faint); margin-bottom: var(--space-2); }
.dose-opts { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.dose-opt {
  padding: 8px 14px; border: 1.5px solid var(--color-border); background: var(--color-surface);
  border-radius: var(--radius-md); font-size: var(--text-sm); font-weight: 600; cursor: pointer;
  color: var(--color-text-muted); transition: var(--transition); min-width: 52px; text-align: center;
}
.dose-opt:hover { border-color: var(--color-primary); color: var(--color-text); }
.dose-opt.active { border-color: var(--color-primary); background: var(--color-primary); color: #fff; box-shadow: var(--shadow-sm); }

/* checkout */
.checkout { padding: var(--space-8); }
.checkout h3 { font-size: var(--text-xl); margin-bottom: var(--space-2); }
.checkout .sub { color: var(--color-text-muted); font-size: var(--text-sm); margin-bottom: var(--space-6); }
.field { margin-bottom: var(--space-4); }
.field label { display: block; font-size: var(--text-sm); font-weight: 500; margin-bottom: var(--space-2); }
.field input, .field select { width: 100%; padding: var(--space-3) var(--space-4); background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-size: var(--text-sm); }
.field input:focus, .field select:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.checkout-summary { background: var(--color-surface-offset); border-radius: var(--radius-md); padding: var(--space-4); margin: var(--space-4) 0; }
.pay-methods { display: flex; gap: var(--space-2); margin-bottom: var(--space-4); flex-wrap: wrap; }
.pay-method { flex: 1; min-width: 100px; padding: var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-md); text-align: center; font-size: var(--text-xs); font-weight: 600; cursor: pointer; transition: var(--transition); }
.pay-method.active { border-color: var(--color-primary); background: var(--color-primary-soft); color: var(--color-primary); }
.order-success { text-align: center; padding: var(--space-12) var(--space-8); }
.order-success svg { width: 72px; height: 72px; color: var(--color-success); margin: 0 auto var(--space-4); }
.order-success h3 { font-size: var(--text-xl); margin-bottom: var(--space-2); }
.order-id { font-family: var(--font-display); background: var(--color-surface-offset); padding: var(--space-2) var(--space-4); border-radius: var(--radius-md); display: inline-block; margin: var(--space-3) 0; font-weight: 600; }

/* ===== Info sections ===== */
.section { padding-block: var(--space-16); }
.section-alt { background: var(--color-surface); border-block: 1px solid var(--color-divider); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto var(--space-12); }
.section-head .eyebrow { font-size: var(--text-xs); letter-spacing: 0.22em; text-transform: uppercase; color: var(--color-primary); font-weight: 600; }
.section-head h2 { font-size: var(--text-xl); margin: var(--space-3) 0; }
.section-head p { color: var(--color-text-muted); }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-6); }
.feature { background: var(--color-surface); border: 1px solid var(--color-divider); border-radius: var(--radius-lg); padding: var(--space-6); }
.section-alt .feature { background: var(--color-bg); }
.feature-icon { width: 48px; height: 48px; border-radius: var(--radius-md); background: var(--color-primary-soft); display: flex; align-items: center; justify-content: center; margin-bottom: var(--space-4); }
.feature-icon svg { width: 24px; height: 24px; color: var(--color-primary); }
.feature h3 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
.feature p { font-size: var(--text-sm); color: var(--color-text-muted); }

.faq-item { border-bottom: 1px solid var(--color-divider); }
.faq-q { width: 100%; text-align: left; padding: var(--space-5) 0; display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); font-weight: 600; font-size: var(--text-base); font-family: var(--font-display); }
.faq-q svg { width: 20px; height: 20px; color: var(--color-primary); flex-shrink: 0; transition: var(--transition); }
.faq-q[aria-expanded="true"] svg { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 300ms ease; color: var(--color-text-muted); font-size: var(--text-sm); }
.faq-a-inner { padding-bottom: var(--space-5); }

/* ===== Footer ===== */
.footer { background: var(--color-navy); color: #a9c7c5; padding-block: var(--space-16) var(--space-8); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--space-8); margin-bottom: var(--space-12); }
.footer .brand-name { color: #fff; }
.footer .brand svg { color: var(--color-accent); }
.footer-about { font-size: var(--text-sm); margin-top: var(--space-4); max-width: 36ch; color: #88a8a6; }
.footer h4 { color: #fff; font-size: var(--text-sm); margin-bottom: var(--space-4); letter-spacing: 0.04em; }
.footer ul { list-style: none; display: grid; gap: var(--space-2); }
.footer a { font-size: var(--text-sm); color: #88a8a6; transition: var(--transition); }
.footer a:hover { color: var(--color-accent); }
.footer-disclaimer { border-top: 1px solid rgba(255,255,255,0.1); padding-top: var(--space-6); font-size: var(--text-xs); color: #6f908e; line-height: 1.7; }
.footer-disclaimer strong { color: #b9d4d2; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); font-size: var(--text-xs); color: #6f908e; }

/* ===== Age gate ===== */
.agegate { position: fixed; inset: 0; z-index: 500; background: var(--color-navy); display: flex; align-items: center; justify-content: center; padding: var(--space-4); }
.agegate.hidden { display: none; }
.agegate-card { background: var(--color-surface); border-radius: var(--radius-xl); max-width: 460px; width: 100%; padding: var(--space-10) var(--space-8); text-align: center; box-shadow: var(--shadow-lg); }
.agegate-card .brand { justify-content: center; margin-bottom: var(--space-6); }
.agegate-card h2 { font-size: var(--text-lg); margin-bottom: var(--space-3); }
.agegate-card p { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-6); }
.agegate-actions { display: grid; gap: var(--space-3); }

/* ===== Toast ===== */
.toast { position: fixed; bottom: var(--space-6); left: 50%; transform: translateX(-50%) translateY(120%); background: var(--color-navy); color: #fff; padding: var(--space-3) var(--space-6); border-radius: var(--radius-full); font-size: var(--text-sm); font-weight: 500; z-index: 300; transition: transform 300ms cubic-bezier(0.16,1,0.3,1); display: flex; align-items: center; gap: var(--space-2); box-shadow: var(--shadow-lg); }
.toast.show { transform: translateX(-50%) translateY(0); }
.toast svg { width: 18px; height: 18px; color: var(--color-accent); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .trust-inner { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .product-modal { grid-template-columns: 1fr; }
  .product-modal-vis { padding: var(--space-8); }
}
@media (max-width: 720px) {
  .header-search { display: none; }
  .header-search.mobile-show { display: block; position: absolute; top: 100%; left: 0; right: 0; padding: var(--space-3); background: var(--color-surface); border-bottom: 1px solid var(--color-divider); max-width: none; }
  .header-search.mobile-show .search-suggest { left: var(--space-3); right: var(--space-3); }
  .brand-sub { display: none; }
  .hero-stats { gap: var(--space-5); }
  .header-inner { gap: var(--space-3); }
  .header-actions { gap: 0; }
  .icon-btn { width: 38px; height: 38px; }
  .icon-btn svg { width: 19px; height: 19px; }
}
@media (max-width: 400px) {
  .icon-btn { width: 34px; height: 34px; }
  .brand svg { width: 28px; height: 28px; }
  .brand-name { font-size: 1rem; }
}
@media (max-width: 540px) {
  .trust-inner { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
}

/* ========================================================= */
/* ===== TOP-20 FEATURE STYLES ============================= */
/* ========================================================= */

/* --- Rotating announcement banner --- */
.topbar #announceMsg { transition: opacity 250ms ease; display: inline-block; }

/* --- Header: wishlist + cart spacing --- */
#wishCount { background: var(--color-accent); color: #04201c; }

/* --- Live search suggestions --- */
.search-suggest {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; z-index: 120;
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); overflow: hidden; display: none; max-height: 60vh; overflow-y: auto;
}
.search-suggest.open { display: block; }
.suggest-item { display: flex; align-items: center; gap: var(--space-3); width: 100%; text-align: left; padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-divider); transition: var(--transition); }
.suggest-item:last-child { border-bottom: none; }
.suggest-item:hover { background: var(--color-surface-offset); }
.suggest-vis { width: 34px; height: 40px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.suggest-vis svg { width: 24px; height: 32px; }
.suggest-info { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.suggest-info b { font-size: var(--text-sm); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.suggest-info small { font-size: var(--text-xs); color: var(--color-text-faint); }
.suggest-price { font-size: var(--text-xs); font-weight: 700; color: var(--color-primary); flex-shrink: 0; }

/* --- Bundles --- */
.bundles { padding-block: var(--space-16) var(--space-12); }
.bundle-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-5); }
.bundle-card {
  position: relative; background: var(--color-surface); border: 1px solid var(--color-divider); border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5) var(--space-5); display: flex; flex-direction: column; gap: var(--space-2);
  overflow: hidden; transition: var(--transition);
}
.bundle-card::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 4px; background: linear-gradient(90deg, var(--b1, var(--color-primary)), var(--b2, var(--color-accent))); }
.bundle-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: var(--b1, var(--color-primary)); }
.bundle-vis { display: flex; justify-content: center; gap: var(--space-2); padding: var(--space-3) 0 var(--space-2); }
.bundle-vial { width: 52px; height: 68px; border-radius: var(--radius-md); background: linear-gradient(160deg, color-mix(in srgb, var(--b1) 14%, var(--color-surface-offset)), var(--color-surface-2)); display: flex; align-items: center; justify-content: center; }
.bundle-vial svg { width: 34px; height: 46px; }
.bundle-tag { align-self: center; background: var(--color-success-soft); color: var(--color-success); font-size: 0.66rem; font-weight: 700; padding: 3px 10px; border-radius: var(--radius-full); text-transform: uppercase; letter-spacing: 0.03em; }
.bundle-card h3 { font-size: var(--text-base); text-align: center; margin-top: var(--space-1); }
.bundle-items { font-size: var(--text-xs); color: var(--color-text); text-align: center; font-weight: 500; }
.bundle-tagline { font-size: var(--text-xs); color: var(--color-text-muted); text-align: center; line-height: 1.5; }
.bundle-price { display: flex; align-items: baseline; gap: var(--space-2); justify-content: center; margin: var(--space-2) 0; }
.bundle-price .card-price { font-size: 1.5rem; }
.bundle-card .btn { margin-top: auto; }

/* --- Shop layout with sidebar --- */
.shop-layout { display: grid; grid-template-columns: 230px 1fr; gap: var(--space-8); align-items: start; }
.shop-main { min-width: 0; }
.filter-sidebar {
  background: var(--color-surface); border: 1px solid var(--color-divider); border-radius: var(--radius-lg);
  padding: var(--space-5); display: grid; gap: var(--space-6); position: sticky; top: 110px;
}
.filter-group h4 { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-faint); margin-bottom: var(--space-3); }
.filter-range-val { font-size: var(--text-sm); font-weight: 600; color: var(--color-primary); margin-top: var(--space-2); }
#priceRange { width: 100%; accent-color: var(--color-primary); }
.filter-check { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); cursor: pointer; margin-bottom: var(--space-2); }
.filter-check input { width: 16px; height: 16px; accent-color: var(--color-primary); cursor: pointer; }
.filter-toggle { display: none; align-items: center; gap: var(--space-2); padding: var(--space-2) var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); font-size: var(--text-sm); font-weight: 600; background: var(--color-surface); }
.filter-toggle svg { width: 16px; height: 16px; }

/* --- View toggle --- */
.view-toggle { display: flex; gap: 2px; background: var(--color-surface-offset); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 3px; align-self: flex-end; }
.view-btn { width: 34px; height: 32px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); color: var(--color-text-faint); transition: var(--transition); }
.view-btn svg { width: 17px; height: 17px; }
.view-btn.active { background: var(--color-surface); color: var(--color-primary); box-shadow: var(--shadow-sm); }

/* --- Card additions: wishlist heart, rating, stock, footer --- */
.card-wish {
  position: absolute; top: var(--space-3); right: var(--space-3); z-index: 3; width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center; border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--color-surface) 80%, transparent); backdrop-filter: blur(4px);
  color: var(--color-text-faint); transition: var(--transition);
}
.card-wish svg { width: 17px; height: 17px; }
.card-wish:hover { color: var(--color-danger); background: var(--color-surface); }
.card-wish.active { color: #fff; background: var(--color-danger); }
.card-wish.active svg { fill: #fff; }
.card .card-cat { right: 44px; }
.card-rating { display: flex; align-items: center; gap: var(--space-2); }
.stars { display: inline-flex; gap: 1px; color: #e0a431; }
.stars svg { width: 13px; height: 13px; }
.rating-num { font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 600; }
.rating-num small { color: var(--color-text-faint); font-weight: 400; }
.card-foot { display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-2); }
.card-foot .card-add { margin-top: 0; }
.stock-badge { font-size: 0.68rem; font-weight: 700; padding: 2px 0; letter-spacing: 0.02em; }
.stock-badge.in { color: var(--color-success); }
.stock-badge.in::before { content: '● '; }
.stock-badge.low { color: var(--color-warning); }
.stock-badge.low::before { content: '● '; }

/* --- List view --- */
.product-grid.list-view { grid-template-columns: 1fr; gap: var(--space-3); }
.product-grid.list-view .card { flex-direction: row; align-items: stretch; }
.product-grid.list-view .card-vial { width: 140px; aspect-ratio: auto; border-bottom: none; border-right: 1px solid var(--color-divider); flex-shrink: 0; }
.product-grid.list-view .card-vial svg { width: 50px; height: 66px; }
.product-grid.list-view .card-body { flex-direction: row; flex-wrap: wrap; align-items: center; gap: var(--space-3) var(--space-5); }
.product-grid.list-view .card-name { flex-basis: 100%; }
.product-grid.list-view .card-foot { flex-direction: row; align-items: center; margin-top: 0; margin-left: auto; gap: var(--space-4); }
.product-grid.list-view .card-add { width: auto; padding: var(--space-2) var(--space-5); }
.product-grid.list-view .card-price-row { margin-top: 0; }
@media (max-width: 600px) { .product-grid.list-view .card { flex-direction: column; } .product-grid.list-view .card-vial { width: 100%; aspect-ratio: 1.35/1; border-right: none; border-bottom: 1px solid var(--color-divider); } .product-grid.list-view .card-body { flex-direction: column; align-items: stretch; } .product-grid.list-view .card-foot { margin-left: 0; flex-direction: column; } }

/* --- Skeleton loaders --- */
.card.skel { pointer-events: none; }
.skel-vis { aspect-ratio: 1.35/1; background: var(--color-surface-offset); }
.skel-body { padding: var(--space-4); display: grid; gap: var(--space-3); }
.skel-line { height: 12px; border-radius: var(--radius-sm); background: linear-gradient(90deg, var(--color-surface-offset) 25%, var(--color-divider) 50%, var(--color-surface-offset) 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; }
.skel-vis { background: linear-gradient(90deg, var(--color-surface-offset) 25%, var(--color-divider) 50%, var(--color-surface-offset) 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; }
.skel-line.w70 { width: 70%; } .skel-line.w40 { width: 40%; } .skel-line.w50 { width: 50%; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* --- Reveal animations --- */
.card.reveal { animation: cardIn 420ms cubic-bezier(0.16,1,0.3,1) backwards; animation-delay: var(--d, 0ms); }
@keyframes cardIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.reveal-on-scroll { opacity: 0; transform: translateY(24px); transition: opacity 600ms ease, transform 600ms cubic-bezier(0.16,1,0.3,1); }
.reveal-on-scroll.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { .card.reveal, .reveal-on-scroll { animation: none; opacity: 1; transform: none; } }

/* --- Recently viewed --- */
.recent-section { padding-block: var(--space-12); }
.recent-row { display: flex; gap: var(--space-4); overflow-x: auto; padding-bottom: var(--space-3); -webkit-overflow-scrolling: touch; }
.recent-card { flex-shrink: 0; width: 150px; background: var(--color-surface); border: 1px solid var(--color-divider); border-radius: var(--radius-md); padding: var(--space-3); cursor: pointer; transition: var(--transition); }
.recent-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.recent-vis { height: 80px; display: flex; align-items: center; justify-content: center; background: var(--color-surface-offset); border-radius: var(--radius-sm); margin-bottom: var(--space-2); }
.recent-vis svg { width: 34px; height: 46px; }
.recent-name { font-size: var(--text-xs); font-weight: 600; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.recent-price { font-size: var(--text-xs); color: var(--color-primary); font-weight: 700; margin-top: 2px; }

/* --- Free shipping progress bar --- */
.ship-bar { padding: var(--space-3) var(--space-5) 0; }
.ship-bar-track { height: 7px; border-radius: var(--radius-full); background: var(--color-surface-offset); overflow: hidden; }
.ship-bar-fill { height: 100%; width: 0; border-radius: var(--radius-full); background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); transition: width 400ms cubic-bezier(0.16,1,0.3,1); }
.ship-bar-note { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-2); text-align: center; }

/* --- Volume note + cart discount rows --- */
.vol-note { font-size: var(--text-xs); color: var(--color-text-muted); text-align: center; margin-bottom: var(--space-3); min-height: 1px; }
.vol-note .vol-active { color: var(--color-success); font-weight: 600; }
.cart-row.disc span:last-child { color: var(--color-success); font-weight: 600; }
.cart-row.disc span:first-child { color: var(--color-success); }

/* --- Product modal: qty row, save badge, stock --- */
.pm-stock { display: inline-block; font-size: var(--text-sm); font-weight: 600; margin-bottom: var(--space-4); }
.pm-stock.in { color: var(--color-success); }
.pm-stock.low { color: var(--color-warning); }
.pm-rating { margin-bottom: var(--space-3); }
.pm-save { font-size: var(--text-xs); font-weight: 700; color: var(--color-success); background: var(--color-success-soft); padding: 2px 8px; border-radius: var(--radius-full); }
.pm-qtyrow { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-5); flex-wrap: wrap; }
.pm-qty-label { font-size: 0.66rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-faint); }
.pm-qty { margin-top: 0; }
.pm-qty button { width: 32px; height: 32px; }
.pm-add-btn { flex: 1; min-width: 200px; }
.product-modal-vis { position: relative; }
.pm-wish { position: absolute; top: var(--space-4); left: var(--space-4); width: 40px; height: 40px; border-radius: var(--radius-full); background: color-mix(in srgb, var(--color-surface) 70%, transparent); backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center; color: var(--color-text-muted); transition: var(--transition); }
.pm-wish svg { width: 20px; height: 20px; }
.pm-wish:hover { color: var(--color-danger); }
.pm-wish.active { color: #fff; background: var(--color-danger); }
.pm-wish.active svg { fill: #fff; }

/* --- Reviews --- */
.pm-reviews { border-top: 1px solid var(--color-divider); padding-top: var(--space-5); margin-bottom: var(--space-5); }
.pm-reviews-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-4); }
.pm-reviews-head h4 { font-size: var(--text-base); }
.pm-rating-summary { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); }
.pm-rating-summary strong { font-family: var(--font-display); }
.pm-rating-summary span { color: var(--color-text-faint); font-size: var(--text-xs); }
.review { padding: var(--space-3) 0; border-bottom: 1px solid var(--color-divider); }
.review:last-child { border-bottom: none; }
.review-top { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-1); flex-wrap: wrap; }
.review-stars .stars svg { width: 12px; height: 12px; }
.review-name { font-size: var(--text-xs); font-weight: 600; color: var(--color-text-muted); }
.review-name em { font-style: normal; color: var(--color-success); font-weight: 600; }
.review-title { font-size: var(--text-sm); font-weight: 600; }
.review-body { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; margin-top: 2px; }

/* --- Scientific specifications --- */
.pm-sci { margin-bottom: var(--space-5); border: 1px solid var(--color-divider); border-radius: var(--radius-md); overflow: hidden; }
.pm-sci summary { display: flex; align-items: center; gap: var(--space-2); padding: var(--space-3) var(--space-4); font-size: var(--text-sm); font-weight: 600; cursor: pointer; background: var(--color-surface-2); list-style: none; }
.pm-sci summary::-webkit-details-marker { display: none; }
.pm-sci summary svg { width: 17px; height: 17px; color: var(--color-primary); }
.sci-grid { padding: var(--space-4); display: grid; gap: var(--space-2); }
.sci-row { display: flex; justify-content: space-between; gap: var(--space-3); font-size: var(--text-sm); padding-bottom: var(--space-2); border-bottom: 1px dashed var(--color-divider); }
.sci-row span { color: var(--color-text-muted); }
.sci-row b { font-family: var(--font-display); text-align: right; }
.sci-note { font-size: var(--text-xs); color: var(--color-text-faint); margin: var(--space-2) var(--space-4) var(--space-3); font-style: italic; }

/* --- Related products --- */
.pm-related { border-top: 1px solid var(--color-divider); padding-top: var(--space-5); }
.pm-related h4 { font-size: var(--text-base); margin-bottom: var(--space-3); }
.pm-related-row { display: flex; gap: var(--space-3); overflow-x: auto; padding-bottom: var(--space-2); }
.pm-related-row .recent-card { width: 130px; }

/* --- Calculator --- */
.calc { padding: var(--space-8); }
.calc h3 { font-size: var(--text-xl); margin-bottom: var(--space-2); }
.calc .sub { color: var(--color-text-muted); font-size: var(--text-sm); margin-bottom: var(--space-6); }
.calc-result { background: var(--color-primary-soft); border-radius: var(--radius-md); padding: var(--space-4); margin: var(--space-4) 0; display: grid; gap: var(--space-2); }
.calc-row { display: flex; justify-content: space-between; font-size: var(--text-sm); }
.calc-row span { color: var(--color-text-muted); }
.calc-row b { font-family: var(--font-display); }
.calc-row.big { font-size: var(--text-base); padding-top: var(--space-2); border-top: 1px solid color-mix(in srgb, var(--color-primary) 25%, transparent); }
.calc-row.big b { color: var(--color-primary); font-size: var(--text-lg); }

/* --- Order tracking --- */
.track-err { color: var(--color-danger); font-size: var(--text-sm); margin-top: var(--space-3); }
.track-box { background: var(--color-surface-2); border: 1px solid var(--color-divider); border-radius: var(--radius-md); padding: var(--space-5); margin-top: var(--space-4); }
.track-order { font-family: var(--font-display); font-weight: 700; font-size: var(--text-lg); margin-bottom: var(--space-4); }
.track-steps { display: grid; gap: var(--space-3); }
.track-step { display: flex; align-items: center; gap: var(--space-3); font-size: var(--text-sm); color: var(--color-text-faint); }
.track-dot { width: 24px; height: 24px; border-radius: var(--radius-full); border: 2px solid var(--color-border); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.track-dot svg { width: 13px; height: 13px; color: #fff; }
.track-step.done { color: var(--color-text); }
.track-step.done .track-dot { background: var(--color-success); border-color: var(--color-success); }
.track-step.current { font-weight: 700; color: var(--color-primary); }
.track-step.current .track-dot { border-color: var(--color-primary); }

/* --- Promo row at checkout --- */
.promo-row { display: flex; gap: var(--space-2); }
.promo-row input { flex: 1; }
.promo-row .btn { flex-shrink: 0; }
.promo-msg { font-size: var(--text-xs); margin-top: var(--space-2); display: inline-block; }
.promo-msg.ok { color: var(--color-success); }
.promo-msg.err { color: var(--color-danger); }

/* --- Newsletter (footer) --- */
.footer-news { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); padding-bottom: var(--space-10); margin-bottom: var(--space-10); border-bottom: 1px solid rgba(255,255,255,0.1); flex-wrap: wrap; }
.footer-news h3 { color: #fff; font-size: var(--text-lg); margin-bottom: var(--space-2); }
.footer-news p { font-size: var(--text-sm); color: #88a8a6; max-width: 42ch; }
.newsletter-form { display: flex; gap: var(--space-2); flex: 1; min-width: 280px; max-width: 420px; }
.newsletter-form input { flex: 1; padding: var(--space-3) var(--space-4); border-radius: var(--radius-full); border: 1px solid rgba(255,255,255,0.18); background: rgba(255,255,255,0.06); color: #fff; font-size: var(--text-sm); }
.newsletter-form input::placeholder { color: #6f908e; }
.newsletter-form input:focus { outline: none; border-color: var(--color-accent); }
.newsletter-form .btn { flex-shrink: 0; }

/* --- Back to top --- */
.back-to-top { position: fixed; bottom: var(--space-6); right: var(--space-6); width: 46px; height: 46px; border-radius: var(--radius-full); background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-md); z-index: 150; opacity: 0; visibility: hidden; transform: translateY(10px); transition: var(--transition); }
.back-to-top svg { width: 22px; height: 22px; }
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--color-primary-hover); transform: translateY(-2px); }

/* --- Responsive for new components --- */
@media (max-width: 900px) {
  .shop-layout { grid-template-columns: 1fr; }
  .filter-toggle { display: inline-flex; }
  .filter-sidebar { display: none; position: static; }
  .filter-sidebar.open { display: grid; margin-bottom: var(--space-6); grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .footer-news { flex-direction: column; align-items: flex-start; }
  .newsletter-form { width: 100%; max-width: none; }
  .back-to-top { bottom: var(--space-4); right: var(--space-4); }
}
@media (max-width: 540px) {
  .filter-sidebar.open { grid-template-columns: 1fr; }
  .shop-controls { width: 100%; }
  .pm-add-btn { min-width: 0; width: 100%; }
}

/* ---- crypto payment gateway ---- */
.pay-hint { font-weight: 500; color: var(--color-accent); margin-left: 6px; font-size: var(--text-xs); }
.pay-method { display: flex; align-items: center; gap: 8px; }
.pay-method em { font-style: normal; color: var(--color-success); font-weight: 600; font-size: 0.85em; }
.pay-method.active em { color: var(--color-text-inverse); }
.pay-tick {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 38px; padding: 2px 6px; border-radius: var(--radius-sm);
  background: var(--color-surface-offset); color: var(--color-primary);
  font-family: var(--font-display); font-weight: 700; font-size: 0.72rem; letter-spacing: 0.03em;
}
.pay-method.active .pay-tick { background: rgba(255,255,255,0.18); color: #fff; }
.pay-tick.big { min-width: 52px; padding: 8px 10px; font-size: 0.95rem; }

.cryptopay { display: flex; flex-direction: column; gap: var(--space-4); }
.cp-head { display: flex; align-items: center; gap: var(--space-4); }
.cp-head h3 { margin: 0; }
.cp-head .sub { margin: 2px 0 0; color: var(--color-text-muted); font-size: var(--text-sm); }
.cp-loading { display: flex; align-items: center; gap: 12px; padding: var(--space-8) 0; color: var(--color-text-muted); justify-content: center; }
.spinner {
  width: 22px; height: 22px; border-radius: 50%;
  border: 3px solid var(--color-border); border-top-color: var(--color-primary);
  animation: cpspin 0.8s linear infinite;
}
@keyframes cpspin { to { transform: rotate(360deg); } }

.cp-amount { text-align: center; padding: var(--space-5); background: var(--color-surface-offset); border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
.cp-crypto { font-family: var(--font-display); font-size: clamp(1.6rem, 4vw, 2.1rem); font-weight: 700; color: var(--color-text); word-break: break-all; }
.cp-crypto em { font-style: normal; color: var(--color-primary); font-size: 0.6em; }
.cp-usd { color: var(--color-text-muted); font-size: var(--text-sm); margin-top: 2px; }
.cp-rate { color: var(--color-text-faint); font-size: var(--text-xs); margin-top: 6px; }

.cp-qr { display: flex; flex-direction: column; align-items: center; }
.cp-qr img { border-radius: var(--radius-md); background: #fff; padding: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.08); }
.cp-qr-fallback { color: var(--color-text-muted); font-size: var(--text-sm); }

.cp-field label { display: block; font-size: var(--text-xs); color: var(--color-text-muted); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.06em; }
.cp-copyrow { display: flex; align-items: stretch; gap: 8px; }
.cp-copyrow code {
  flex: 1; min-width: 0; display: flex; align-items: center; padding: 10px 12px;
  background: var(--color-surface-offset); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); font-size: var(--text-sm); word-break: break-all; line-height: 1.4;
}
.cp-copy { white-space: nowrap; }
.cp-copy.ok { color: var(--color-success); border-color: var(--color-success); }
.cp-note { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.6; background: var(--color-warning-soft); border-radius: var(--radius-md); padding: 12px 14px; }
.cp-note b { color: var(--color-text); }

/* ===== New features: compare, share, restock, delivery ===== */
.btn-sm { padding: 6px 12px; font-size: var(--text-xs); }
.pos { color: var(--color-success); }
.neg { color: var(--color-danger); }

/* compare button on cards */
.card-compare {
  position: absolute; top: 10px; left: 10px; z-index: 2;
  font-size: 11px; font-weight: 600; padding: 4px 9px; border-radius: var(--radius-full);
  background: var(--color-surface); color: var(--color-text-muted);
  border: 1px solid var(--color-border); cursor: pointer; transition: all .15s;
}
.card-compare:hover { border-color: var(--color-primary); color: var(--color-primary); }
.card-compare.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.card { position: relative; }

/* compare bar */
.compare-bar { position: fixed; left: 0; right: 0; bottom: -120px; z-index: 60; background: var(--color-navy); color: #fff; box-shadow: 0 -4px 20px rgba(0,0,0,.18); transition: bottom .28s ease; }
.compare-bar.show { bottom: 0; }
.compare-bar-inner { display: flex; align-items: center; gap: var(--space-4); padding: 12px 0; flex-wrap: wrap; }
.compare-bar-label { font-family: var(--font-display); font-weight: 700; }
.compare-chips { display: flex; gap: 8px; flex: 1; flex-wrap: wrap; }
.cmp-chip { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,.12); padding: 5px 10px; border-radius: var(--radius-full); font-size: var(--text-sm); }
.cmp-chip button { background: none; border: none; color: #fff; cursor: pointer; font-size: 15px; line-height: 1; opacity: .8; }
.cmp-chip button:hover { opacity: 1; }
.compare-bar-actions { display: flex; gap: 8px; }
.compare-bar .btn-ghost { color: #fff; border-color: rgba(255,255,255,.4); }

/* compare table */
.compare-view h3 { margin-bottom: var(--space-4); }
.compare-scroll { overflow-x: auto; }
.compare-table { width: 100%; border-collapse: collapse; min-width: 480px; }
.compare-table th, .compare-table td { padding: var(--space-3); text-align: center; border-bottom: 1px solid var(--color-divider); font-size: var(--text-sm); }
.compare-table thead th { vertical-align: top; }
.cmp-vis { width: 54px; margin: 0 auto var(--space-2); }
.cmp-vis svg { width: 100%; height: auto; }
.cmp-h { font-family: var(--font-display); font-weight: 600; margin-bottom: var(--space-2); font-size: var(--text-sm); }
.cmp-label { text-align: left; color: var(--color-text-muted); font-weight: 600; }

/* share */
.pm-share { display: flex; align-items: center; gap: 8px; margin: var(--space-4) 0; flex-wrap: wrap; }
.pm-share > span { font-size: var(--text-sm); color: var(--color-text-muted); }
.share-btn { font-size: var(--text-xs); font-weight: 600; padding: 6px 12px; border-radius: var(--radius-full); background: var(--color-surface-2); border: 1px solid var(--color-border); color: var(--color-text); cursor: pointer; }
.share-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* restock + delivery */
.pm-restock { background: var(--color-warning-soft); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); margin-bottom: var(--space-4); font-size: var(--text-sm); }
.restock-row { display: flex; gap: 8px; margin-top: 8px; }
.restock-row input { flex: 1; padding: 8px 10px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); font-size: var(--text-sm); }
.restock-msg { display: block; margin-top: 6px; color: var(--color-success); font-size: var(--text-xs); }
.pm-deliver { display: flex; align-items: center; gap: 8px; font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-4); }
.pm-deliver svg { width: 16px; height: 16px; color: var(--color-success); }

/* ===== Secret admin / profit console ===== */
.admin-overlay { position: fixed; inset: 0; z-index: 200; background: rgba(8,18,28,.72); backdrop-filter: blur(4px); display: none; align-items: flex-start; justify-content: center; overflow-y: auto; padding: 0; }
.admin-overlay.show { display: flex; }
.admin-gate { width: 100%; min-height: 100dvh; display: flex; align-items: center; justify-content: center; padding: var(--space-5); }
.admin-gate-card { position: relative; background: var(--color-surface); border-radius: var(--radius-xl); padding: var(--space-8) var(--space-7); max-width: 360px; width: 100%; text-align: center; box-shadow: var(--shadow-lg); }
.admin-gate-card svg { width: 40px; height: 40px; color: var(--color-primary); margin-bottom: var(--space-3); }
.admin-gate-card h3 { margin-bottom: 4px; }
.admin-gate-card p { color: var(--color-text-muted); font-size: var(--text-sm); margin-bottom: var(--space-4); }
.admin-gate-card input { width: 100%; padding: 12px 14px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-2); color: var(--color-text); font-size: var(--text-base); margin-bottom: var(--space-3); text-align: center; letter-spacing: .12em; }
.admin-gate-msg { display: block; margin-top: 8px; color: var(--color-danger); font-size: var(--text-sm); min-height: 18px; }
.admin-close-x { position: absolute; top: 12px; right: 14px; background: none; border: none; font-size: 22px; line-height: 1; color: var(--color-text-muted); cursor: pointer; }

.admin-panel { width: 100%; max-width: 1080px; min-height: 100dvh; background: var(--color-bg); }
.admin-head { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) var(--space-5); background: var(--color-navy); color: #fff; }
.admin-brand { font-family: var(--font-display); font-size: var(--text-lg); }
.admin-brand b { color: var(--color-accent); }
.admin-head .icon-btn { color: #fff; }
.admin-body { padding: var(--space-5); display: grid; gap: var(--space-5); }

.admin-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
.admin-stat { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-4); text-align: center; }
.admin-stat span { display: block; font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }
.admin-stat b { font-family: var(--font-display); font-size: var(--text-xl); }

.admin-cols { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.admin-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-5); }
.admin-card h4 { margin-bottom: var(--space-4); font-size: var(--text-lg); }
.admin-hint { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-4); line-height: 1.5; }
.admin-field { margin-bottom: var(--space-3); }
.admin-field label { display: block; font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }
.admin-field input, .admin-field select { width: 100%; padding: 10px 12px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-2); color: var(--color-text); font-size: var(--text-sm); }
.admin-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.admin-grid-cost { display: grid; grid-template-columns: 2fr 1fr auto; gap: var(--space-3); align-items: end; }
.admin-grid-cost .admin-field { margin-bottom: 0; }
.admin-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.admin-grid3 .admin-field { margin-bottom: 0; }

/* price upcharge */
.admin-muted { color: var(--color-text-muted); }
.upcharge-site { display: grid; grid-template-columns: 1fr auto; gap: var(--space-3); align-items: end; }
.upcharge-site .admin-field { margin-bottom: 0; }
.upcharge-site-current { grid-column: 1 / -1; font-size: var(--text-sm); color: var(--color-text); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.upcharge-site-current b { font-family: var(--font-display); color: var(--color-primary); }
.upcharge-divider { display: flex; align-items: center; gap: var(--space-3); margin: var(--space-4) 0 var(--space-3); }
.upcharge-divider::before, .upcharge-divider::after { content: ''; flex: 1; height: 1px; background: var(--color-divider); }
.upcharge-divider span { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .06em; color: var(--color-text-muted); }
.admin-grid-up { display: grid; grid-template-columns: 2fr 1fr 1fr auto; gap: var(--space-3); align-items: end; }
.admin-grid-up .admin-field { margin-bottom: 0; }
.admin-field-narrow { min-width: 0; }
@media (max-width: 640px) {
  .upcharge-site { grid-template-columns: 1fr; }
  .admin-grid-up { grid-template-columns: 1fr 1fr; }
  .admin-grid-up .admin-field:first-child { grid-column: 1 / -1; }
}

/* multi-item sale draft */
.sale-draft { margin: var(--space-3) 0; padding: var(--space-3); border: 1px solid var(--color-divider); border-radius: var(--radius-md); background: var(--color-surface-2); }
.sale-draft-head { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .05em; color: var(--color-text-muted); margin-bottom: var(--space-2); }
.sale-draft-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.sale-draft-item { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: var(--space-3); padding: 6px 0; border-bottom: 1px solid var(--color-divider); }
.sale-draft-item:last-child { border-bottom: none; }
.admin-add-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.admin-add-row .btn { width: 100%; white-space: nowrap; }
/* free-extra button sits on a light card, so the dark-bg ghost style is unreadable — re-skin it */
.admin-add-row .btn-ghost { background: var(--color-surface); border: 1px solid var(--color-border); color: var(--color-text); }
.admin-add-row .btn-ghost:hover { background: var(--color-surface-2); border-color: var(--color-primary); color: var(--color-primary); }
.sdi-name { font-size: var(--text-sm); color: var(--color-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sdi-free { display: inline-block; margin-left: 6px; font-size: 10px; font-weight: 700; letter-spacing: .04em; color: var(--color-primary); background: var(--color-primary-soft); padding: 1px 6px; border-radius: 999px; vertical-align: middle; }
.sdi-nums { font-size: var(--text-sm); color: var(--color-text-muted); white-space: nowrap; }
.sale-draft-total { margin-top: var(--space-3); padding-top: var(--space-2); border-top: 2px solid var(--color-divider); font-size: var(--text-sm); color: var(--color-text-muted); text-align: right; }
.sale-draft-total b { font-family: var(--font-display); color: var(--color-text); }

/* multi-item sale builder: step labels, item builder card, empty hint, live summary */
.sale-step-label { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 600; color: var(--color-text); margin: var(--space-4) 0 var(--space-2); display: flex; align-items: center; gap: 8px; }
.sale-step-label::before { content: ''; width: 4px; height: 14px; border-radius: 2px; background: var(--color-primary); display: inline-block; }
.sale-step-label:first-of-type { margin-top: var(--space-2); }
.sale-builder { border: 1px dashed var(--color-border); border-radius: var(--radius-lg); padding: var(--space-3); background: var(--color-surface-2); }
.sale-draft-empty { font-size: var(--text-sm); color: var(--color-text-muted); margin: 0 0 var(--space-2); padding: var(--space-3); border: 1px dashed var(--color-divider); border-radius: var(--radius-md); text-align: center; }
.sale-summary { margin: var(--space-3) 0; }
.sale-summary.on { padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface-2); }
.sale-summary .ss-row { display: flex; justify-content: space-between; align-items: baseline; gap: var(--space-3); font-size: var(--text-sm); color: var(--color-text-muted); padding: 3px 0; }
.sale-summary .ss-row span:last-child { color: var(--color-text); }
.sale-summary .ss-row b { font-family: var(--font-display); }
.sale-summary .ss-net { margin-top: 6px; padding-top: var(--space-2); border-top: 2px solid var(--color-divider); font-size: var(--text-base); color: var(--color-text); }
.sale-summary .ss-net b { font-size: var(--text-lg); }
.admin-field-btn .btn { width: 100%; white-space: nowrap; }
.admin-preview { font-size: var(--text-sm); color: var(--color-text-muted); min-height: 20px; margin-bottom: var(--space-3); }
.admin-preview b { font-family: var(--font-display); color: var(--color-text); }

.admin-drop { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: var(--space-7); border: 2px dashed var(--color-border); border-radius: var(--radius-lg); cursor: pointer; text-align: center; color: var(--color-text-muted); transition: all .15s; }
.admin-drop:hover, .admin-drop.drag { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-soft); }
.admin-drop svg { width: 30px; height: 30px; }
.receipt-preview { margin-top: var(--space-3); }
.receipt-preview img { max-width: 100%; max-height: 220px; border-radius: var(--radius-md); border: 1px solid var(--color-border); }
.receipt-status { font-size: var(--text-sm); color: var(--color-text-muted); margin: var(--space-3) 0; }
.receipt-parsed { margin-top: var(--space-3); }

.admin-ledger-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-4); }
.admin-ledger-actions { display: flex; gap: 8px; }
.admin-table-scroll { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; min-width: 720px; font-size: var(--text-sm); }
.admin-table th { text-align: left; padding: var(--space-2) var(--space-3); color: var(--color-text-muted); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .04em; border-bottom: 2px solid var(--color-divider); white-space: nowrap; }
.admin-table td { padding: var(--space-3); border-bottom: 1px solid var(--color-divider); white-space: nowrap; }
.sale-note { display: block; font-size: var(--text-xs); color: var(--color-text-muted); }
.sale-del { background: none; border: none; color: var(--color-text-muted); font-size: 16px; cursor: pointer; }
.sale-del:hover { color: var(--color-danger); }
.admin-empty { text-align: center; color: var(--color-text-muted); font-size: var(--text-sm); padding: var(--space-5); }

@media (max-width: 860px) {
  .admin-stats { grid-template-columns: repeat(3, 1fr); }
  .admin-cols { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .admin-grid-cost { grid-template-columns: 1fr; align-items: stretch; }
  .admin-grid3 { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .admin-stats { grid-template-columns: repeat(2, 1fr); }
  .admin-grid2 { grid-template-columns: 1fr; }
  .sale-draft-item { grid-template-columns: 1fr auto; }
  .sdi-nums { grid-column: 1 / -1; }
}