/* ============================================================
   Life Sciences Network — design system
   Palette: deep navy #10233F · white · forest green #276546
   ============================================================ */

:root {
  --navy:        #10233F;
  --navy-deep:   #0B1930;
  --navy-soft:   #1B3357;
  --green:       #276546;
  --green-dark:  #1D4E36;
  --green-tint:  #EAF2ED;
  --paper:       #FFFFFF;
  --bg:          #F6F8FA;
  --ink:         #14213A;
  --muted:       #5B6B82;
  --line:        #E3E9F0;
  --amber:       #B97D10;
  --red:         #C0392B;
  --radius:      12px;
  --radius-sm:   8px;
  --shadow:      0 1px 2px rgba(16,35,63,.06), 0 8px 24px rgba(16,35,63,.07);
  --shadow-lg:   0 4px 12px rgba(16,35,63,.10), 0 20px 48px rgba(16,35,63,.14);
  --font-body:   'Inter', system-ui, -apple-system, sans-serif;
  --font-display:'Fraunces', Georgia, serif;
  --font-mono:   'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 15.5px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }
h1,h2,h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.18; color: var(--navy); letter-spacing: -.01em; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 22px; }

/* ------------------------------------------------ header / nav */
.topbar {
  background: var(--navy-deep);
  color: #B9C6DA;
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-align: center;
  padding: 7px 14px;
  letter-spacing: .04em;
}
.site-header {
  background: var(--navy);
  position: sticky; top: 0; z-index: 60;
  box-shadow: 0 2px 12px rgba(11,25,48,.35);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none !important; }
.brand-mark {
  display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(140deg, var(--green) 0%, var(--green-dark) 100%);
  color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 15px;
  letter-spacing: .02em;
}
.brand-text { color: #fff; font-family: var(--font-display); font-size: 14.5px; line-height: 1.15; font-weight: 600; }
.brand-text em { font-style: italic; color: #8FB9A3; }
.main-nav { display: flex; gap: 4px; margin-left: 8px; flex: 1; }
.main-nav a {
  color: #C6D2E4; padding: 8px 13px; border-radius: 8px;
  font-size: 14px; font-weight: 500; text-decoration: none !important;
  transition: background .15s, color .15s;
}
.main-nav a:hover { color: #fff; background: rgba(255,255,255,.08); }
.main-nav a.active { color: #fff; background: var(--green); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.cart-btn { position: relative; color: #C6D2E4; display: grid; place-items: center; padding: 6px; }
.cart-btn:hover { color: #fff; }
.cart-count {
  position: absolute; top: -3px; right: -6px;
  background: var(--green); color: #fff;
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  min-width: 18px; height: 18px; border-radius: 9px;
  display: grid; place-items: center; padding: 0 4px;
  border: 2px solid var(--navy);
}
.user-menu { position: relative; }
.user-btn {
  width: 38px; height: 38px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.25);
  background: var(--navy-soft); color: #fff;
  font-weight: 700; font-size: 15px; cursor: pointer; text-transform: uppercase;
}
.user-drop {
  position: absolute; right: 0; top: calc(100% + 10px);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); min-width: 220px; padding: 6px;
  display: none; z-index: 70;
}
.user-drop.open { display: block; }
.user-drop-head { padding: 10px 12px; border-bottom: 1px solid var(--line); margin-bottom: 6px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.user-drop a { display: block; padding: 9px 12px; border-radius: 8px; color: var(--ink); font-size: 14px; text-decoration: none !important; }
.user-drop a:hover { background: var(--green-tint); color: var(--green-dark); }
.role-badge {
  font-family: var(--font-mono); font-size: 10px; text-transform: uppercase;
  padding: 2px 8px; border-radius: 20px; letter-spacing: .05em;
}
.role-customer    { background: #E8EEF6; color: var(--navy-soft); }
.role-distributor { background: var(--green-tint); color: var(--green-dark); }
.role-admin       { background: #FDF3E1; color: var(--amber); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: #fff; margin: 5px 0; border-radius: 2px; }

/* ------------------------------------------------ buttons / forms */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-body); font-weight: 600; font-size: 14.5px;
  padding: 11px 22px; border-radius: 10px; border: 1px solid transparent;
  cursor: pointer; text-decoration: none !important;
  transition: transform .12s, box-shadow .15s, background .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 2px 8px rgba(39,101,70,.35); }
.btn-primary:hover { background: var(--green-dark); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-soft); }
.btn-ghost { background: transparent; color: #C6D2E4; border-color: rgba(255,255,255,.3); }
.btn-ghost:hover { color: #fff; border-color: #fff; }
.btn-outline { background: #fff; color: var(--green-dark); border-color: var(--green); }
.btn-outline:hover { background: var(--green-tint); }
.btn-danger { background: #fff; color: var(--red); border-color: #EBC5C0; }
.btn-danger:hover { background: #FBEDEB; }
.btn-sm { padding: 8px 15px; font-size: 13.5px; border-radius: 8px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; cursor: default; }

label.field { display: block; margin-bottom: 15px; }
label.field span { display: block; font-size: 13px; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=url], select, textarea {
  width: 100%; padding: 11px 13px;
  border: 1.5px solid var(--line); border-radius: 10px;
  font: inherit; font-size: 14.5px; color: var(--ink); background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(39,101,70,.13);
}
textarea { min-height: 110px; resize: vertical; }

/* ------------------------------------------------ layout blocks */
.hero {
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(39,101,70,.35), transparent 60%),
    linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 55%, #142E52 100%);
  color: #fff; padding: 84px 0 96px;
  position: relative; overflow: hidden;
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 26px 26px; pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { color: #fff; font-size: clamp(34px, 5vw, 54px); max-width: 740px; }
.hero h1 em { font-style: italic; color: #8FB9A3; }
.hero p.lead { color: #B9C6DA; font-size: 17.5px; max-width: 620px; margin-top: 18px; }
.hero .hero-cta { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.eyebrow {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--green); font-weight: 500;
}
.hero .eyebrow { color: #8FB9A3; }
.section { padding: 68px 0; }
.section-head { max-width: 640px; margin-bottom: 38px; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 36px); margin-top: 10px; }
.section-head p { color: var(--muted); margin-top: 12px; }
.section-alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-navy { background: var(--navy); color: #fff; }
.section-navy h2 { color: #fff; }
.section-navy p { color: #B9C6DA; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow);
}
.card h3 { font-size: 19px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14.5px; }
.stat-num { font-family: var(--font-display); font-size: 34px; font-weight: 700; color: var(--green); }

/* ------------------------------------------------ product cards */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(248px, 1fr)); gap: 22px; }
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .18s, box-shadow .18s, border-color .18s;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: #CBD8E6; }
.product-img { aspect-ratio: 1 / .82; background: linear-gradient(150deg, #F1F5F9, #E6EDF4); position: relative; overflow: hidden; }
.product-img img { width: 100%; height: 100%; object-fit: cover; }
.product-img .placeholder {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--font-display); font-size: 40px; color: #C3D0DF; font-style: italic;
}
.product-cat {
  position: absolute; top: 12px; left: 12px;
  background: rgba(16,35,63,.85); color: #fff; backdrop-filter: blur(4px);
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .06em;
  padding: 4px 10px; border-radius: 20px; text-transform: uppercase;
}
.product-body { padding: 18px; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.product-body h3 { font-size: 17.5px; }
.product-body .tagline { color: var(--muted); font-size: 13px; flex: 1; }
.product-meta { display: flex; align-items: baseline; justify-content: space-between; margin-top: 10px; }
.price { font-family: var(--font-mono); font-weight: 500; font-size: 18px; color: var(--navy); }
.price .strike { text-decoration: line-through; color: var(--muted); font-size: 13px; margin-right: 7px; }
.sku { font-family: var(--font-mono); font-size: 11px; color: var(--muted); }
.product-actions { display: flex; gap: 8px; padding: 0 18px 18px; }

.locked-panel {
  text-align: center; padding: 90px 24px;
  background:
    radial-gradient(600px 300px at 50% 0%, rgba(39,101,70,.15), transparent 65%), #fff;
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.locked-panel .lock-icon {
  width: 66px; height: 66px; margin: 0 auto 20px; border-radius: 20px;
  background: var(--navy); color: #fff; display: grid; place-items: center;
}

/* ------------------------------------------------ tables & badges */
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th {
  text-align: left; font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .09em; text-transform: uppercase; color: var(--muted);
  padding: 13px 16px; border-bottom: 1px solid var(--line); background: #FAFBFD;
  white-space: nowrap;
}
table.data td { padding: 13px 16px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.data tr:last-child td { border-bottom: 0; }
table.data tr:hover td { background: #FAFCFB; }
.mono { font-family: var(--font-mono); font-size: 13px; }
.badge {
  display: inline-block; font-family: var(--font-mono); font-size: 10.5px;
  text-transform: uppercase; letter-spacing: .05em;
  padding: 3px 10px; border-radius: 20px;
}
.badge-pending   { background: #FDF3E1; color: var(--amber); }
.badge-paid      { background: var(--green-tint); color: var(--green-dark); }
.badge-cancelled { background: #FBEDEB; color: var(--red); }
.badge-navy      { background: #E8EEF6; color: var(--navy-soft); }

/* ------------------------------------------------ misc components */
.alert { padding: 13px 16px; border-radius: 10px; font-size: 14px; margin-bottom: 18px; border: 1px solid; }
.alert-error   { background: #FBEDEB; border-color: #EBC5C0; color: var(--red); }
.alert-success { background: var(--green-tint); border-color: #BFD8CB; color: var(--green-dark); }
.alert-info    { background: #EAF0F8; border-color: #CBD8E6; color: var(--navy-soft); }

.auth-shell { min-height: calc(100vh - 260px); display: grid; place-items: center; padding: 60px 20px; }
.auth-card { width: 100%; max-width: 440px; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow-lg); padding: 38px; }
.auth-card h1 { font-size: 27px; margin-bottom: 6px; }
.auth-card .sub { color: var(--muted); font-size: 14px; margin-bottom: 26px; }

.page-title-band { background: linear-gradient(160deg, var(--navy-deep), var(--navy)); color: #fff; padding: 48px 0; }
.page-title-band h1 { color: #fff; font-size: clamp(28px, 4vw, 40px); }
.page-title-band p { color: #B9C6DA; margin-top: 8px; max-width: 640px; }

.pill-row { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  border: 1.5px solid var(--line); background: #fff; color: var(--muted);
  padding: 7px 16px; border-radius: 30px; font-size: 13.5px; font-weight: 500;
  cursor: pointer; text-decoration: none !important; transition: all .15s;
}
.pill:hover { border-color: var(--green); color: var(--green-dark); }
.pill.active { background: var(--navy); border-color: var(--navy); color: #fff; }

.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 16px; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.stat-card .label { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); }
.stat-card .value { font-family: var(--font-display); font-size: 27px; font-weight: 700; color: var(--navy); margin-top: 6px; }
.stat-card.green .value { color: var(--green); }

.copy-row { display: flex; gap: 8px; align-items: center; }
.copy-row input { font-family: var(--font-mono); font-size: 12.5px; background: #FAFBFD; }

/* checkout */
.qty-input { width: 64px; text-align: center; font-family: var(--font-mono); }
.summary-line { display: flex; justify-content: space-between; font-size: 14.5px; padding: 4px 0; color: var(--muted); }
.summary-line strong { color: var(--ink); }
.summary-line.total { border-top: 1px solid var(--line); margin-top: 10px; padding-top: 12px; font-size: 16.5px; }
.summary-line.total, .summary-line.total strong { color: var(--navy); font-weight: 700; }
.summary-line.good { color: var(--green-dark); }
.ship-opt { display: flex; justify-content: space-between; align-items: center; gap: 10px; border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; cursor: pointer; margin-bottom: 8px; transition: all .15s; }
.ship-opt:hover { border-color: #CBD8E6; }
.ship-opt.selected { border-color: var(--green); background: var(--green-tint); }
.ship-opt .eta { font-family: var(--font-mono); font-size: 11px; color: var(--muted); }

/* tabs (admin) */
.tabs { display: flex; gap: 6px; border-bottom: 2px solid var(--line); margin-bottom: 26px; flex-wrap: wrap; }
.tabs a {
  padding: 10px 18px; font-weight: 600; font-size: 14.5px; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -2px; text-decoration: none !important;
}
.tabs a.active { color: var(--green-dark); border-color: var(--green); }
.tabs a:hover { color: var(--navy); }

/* footer */
.fda-note { background: #FDF7EC; border-top: 1px solid #F0E2C8; color: #7A5E22; font-size: 12.5px; padding: 14px 0; }
.site-footer { background: var(--navy-deep); color: #B9C6DA; padding: 52px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 34px; padding-bottom: 40px; }
.footer-brand { font-family: var(--font-display); color: #fff; font-size: 19px; }
.footer-brand em { color: #8FB9A3; }
.footer-muted { font-size: 13.5px; margin-top: 10px; max-width: 300px; }
.footer-title { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: #7E92B0; margin-bottom: 12px; }
.site-footer a { display: block; color: #C6D2E4; font-size: 14px; padding: 4px 0; text-decoration: none !important; }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.09); padding: 18px 22px; font-size: 12.5px; color: #7E92B0; }

/* toast */
#toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--navy); color: #fff; padding: 13px 22px; border-radius: 12px;
  font-size: 14px; box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none;
  transition: opacity .25s, transform .25s; z-index: 100; max-width: 90vw;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* spinner */
.spin { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.35); border-top-color: #fff; border-radius: 50%; animation: rot .7s linear infinite; }
.spin.dark { border-color: rgba(16,35,63,.2); border-top-color: var(--navy); }
@keyframes rot { to { transform: rotate(360deg); } }

/* ------------------------------------------------ responsive */
@media (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: var(--navy); flex-direction: column; padding: 10px 16px 18px;
    box-shadow: 0 16px 30px rgba(11,25,48,.4);
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
}
@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 64px; }
  .section { padding: 46px 0; }
  .auth-card { padding: 26px; }
  .footer-grid { grid-template-columns: 1fr; }
  .header-inner { gap: 12px; }
  .btn-sm.hide-sm { display: none; }
}