/* Optima Dental Supplies — shared styles */
:root {
  --navy: #1c3272;
  --navy-dark: #142452;
  --navy-light: #e8ecf6;
  --grey: #7d7d7d;
  --grey-dark: #4a4a4a;
  --grey-light: #f4f5f7;
  --line: #e1e4ea;
  --white: #ffffff;
  --text: #1f2430;
  --accent: #2f6fd6;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(20, 36, 82, 0.08);
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--navy); text-decoration: none; }
h1, h2, h3, h4 { color: var(--navy); line-height: 1.2; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); letter-spacing: -0.01em; }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
.muted { color: var(--grey); }
.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: .75rem;
}
.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
section { padding: 72px 0; }
.section-alt { background: var(--grey-light); }
.section-navy { background: var(--navy); color: #dfe5f5; }
.section-navy h2, .section-navy h3 { color: var(--white); }
.section-navy .eyebrow { color: #a9b6dd; }
.center { text-align: center; }
.lead { font-size: 1.15rem; color: var(--grey-dark); max-width: 680px; }
.center .lead { margin-left: auto; margin-right: auto; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .8rem 1.4rem; border-radius: 999px;
  font-weight: 600; font-size: .95rem; border: 2px solid transparent;
  cursor: pointer; transition: all .18s ease; white-space: nowrap;
}
.btn-primary { background: var(--navy); color: var(--white); }
.btn-primary:hover { background: var(--navy-dark); transform: translateY(-1px); }
.btn-outline { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-outline:hover { background: var(--navy-light); }
.btn-light { background: var(--white); color: var(--navy); }
.btn-light:hover { background: #eef1f8; }
.btn-ghost { color: var(--white); border-color: rgba(255,255,255,.5); }
.btn-ghost:hover { border-color: var(--white); background: rgba(255,255,255,.08); }
.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; }

/* Header / nav */
.topbar {
  background: var(--navy); color: #cfd8ee; font-size: .82rem;
  padding: 6px 0;
}
.topbar .container { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.topbar a { color: var(--white); }
header.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .75rem; }
.brand img { height: 56px; width: 56px; object-fit: cover; border-radius: 8px; }
.brand-text { line-height: 1.1; }
.brand-text strong { display: block; color: var(--navy); font-size: 1.05rem; letter-spacing: .12em; }
.brand-text span { font-size: .68rem; color: var(--grey); letter-spacing: .18em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 1.75rem; list-style: none; margin: 0; padding: 0; }
.nav-links a { font-weight: 500; color: var(--grey-dark); font-size: .95rem; }
.nav-links a:hover, .nav-links a.active { color: var(--navy); }
.nav-cta { display: flex; align-items: center; gap: .75rem; }
.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: 8px;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; transition: .2s; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #f7f8fb 0%, #ffffff 60%);
  padding: 80px 0 72px;
  position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -10%; top: -30%;
  width: 60%; height: 160%;
  background: radial-gradient(closest-side, rgba(28,50,114,.08), transparent 70%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 3rem; align-items: center; position: relative; }
.hero h1 span { color: var(--grey); }
.hero-card {
  background: var(--white); border: 1px solid var(--line); border-radius: 20px;
  box-shadow: var(--shadow); padding: 2rem;
}
.hero-card img { width: 180px; margin: 0 auto 1rem; }
.hero-card ul { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: .6rem; }
.hero-card li { display: flex; gap: .6rem; align-items: flex-start; font-size: .95rem; color: var(--grey-dark); }
.hero-card li::before { content: "✓"; color: var(--navy); font-weight: 700; }

/* Trust strip */
.trust { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 22px 0; background: var(--white); }
.trust .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.trust-item { display: flex; align-items: center; gap: .6rem; font-size: .92rem; color: var(--grey-dark); font-weight: 500; }
.trust-item svg { width: 22px; height: 22px; color: var(--navy); flex: none; }

/* Cards / grid */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem; transition: transform .18s ease, box-shadow .18s ease;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #cdd5e6; }
.card .icon {
  width: 52px; height: 52px; border-radius: 12px; background: var(--navy-light);
  display: grid; place-items: center; color: var(--navy); margin-bottom: 1rem;
}
.card .icon svg { width: 26px; height: 26px; }
.card p { color: var(--grey-dark); font-size: .95rem; flex: 1; }
.card .link { font-weight: 600; font-size: .9rem; }
.card .link::after { content: " →"; }

/* Feature list */
.feature { display: flex; gap: 1rem; align-items: flex-start; }
.feature .num {
  flex: none; width: 40px; height: 40px; border-radius: 50%;
  background: var(--navy); color: var(--white); display: grid; place-items: center; font-weight: 700;
}
.section-navy .feature .num { background: var(--white); color: var(--navy); }
.feature p { color: inherit; opacity: .9; font-size: .95rem; margin: 0; }

/* Founder */
.founder-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 3rem; align-items: center; }
.quote {
  background: var(--navy-light); border-left: 4px solid var(--navy);
  padding: 1.5rem 1.75rem; border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.15rem; color: var(--navy-dark); font-style: italic;
}
.quote cite { display: block; margin-top: 1rem; font-style: normal; font-weight: 600; font-size: .9rem; color: var(--grey-dark); }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: center; }
.stat strong { display: block; font-size: 2.2rem; color: var(--white); font-weight: 700; letter-spacing: -.02em; }
.stat span { font-size: .9rem; opacity: .85; }

/* CTA band */
.cta-band { background: linear-gradient(120deg, var(--navy) 0%, #24418f 100%); color: var(--white); }
.cta-band .container { display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; }
.cta-band h2 { color: var(--white); margin: 0 0 .25rem; }
.cta-band p { margin: 0; opacity: .9; }

/* Product catalogue page */
.cat-nav { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.5rem; }
.cat-nav a {
  padding: .45rem .9rem; border-radius: 999px; border: 1px solid var(--line);
  font-size: .85rem; font-weight: 500; color: var(--grey-dark); background: var(--white);
}
.cat-nav a:hover { border-color: var(--navy); color: var(--navy); }
.category { padding: 56px 0; border-top: 1px solid var(--line); scroll-margin-top: 90px; }
.category:first-of-type { border-top: 0; }
.category-head { display: grid; grid-template-columns: 1fr 1.4fr; gap: 2.5rem; align-items: start; margin-bottom: 2rem; }
.category-head .icon-lg {
  width: 64px; height: 64px; border-radius: 16px; background: var(--navy-light); color: var(--navy);
  display: grid; place-items: center; margin-bottom: 1rem;
}
.category-head .icon-lg svg { width: 32px; height: 32px; }
.product-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.product {
  border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.1rem; background: var(--white);
}
.product strong { display: block; color: var(--navy); font-size: .98rem; margin-bottom: .2rem; }
.product span { font-size: .86rem; color: var(--grey); }
.tag {
  display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  padding: .2rem .55rem; border-radius: 6px; background: var(--navy-light); color: var(--navy); margin-left: .4rem; vertical-align: middle;
}
.tag-grey { background: #ececec; color: var(--grey-dark); }

/* Values */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 3rem; align-items: start; }
.contact-info { display: grid; gap: 1.25rem; }
.contact-info .item { display: flex; gap: .9rem; align-items: flex-start; }
.contact-info .item svg { width: 22px; height: 22px; color: var(--navy); flex: none; margin-top: 3px; }
.contact-info strong { display: block; color: var(--navy); }
form.enquiry { background: var(--white); border: 1px solid var(--line); border-radius: 16px; padding: 2rem; box-shadow: var(--shadow); }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-size: .88rem; font-weight: 600; color: var(--grey-dark); margin-bottom: .35rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: .75rem .9rem; border: 1px solid #cdd3df; border-radius: 8px;
  font: inherit; font-size: .95rem; color: var(--text); background: var(--white);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.checks { display: grid; grid-template-columns: repeat(2, 1fr); gap: .4rem .75rem; }
.checks label { display: flex; align-items: center; gap: .5rem; font-size: .9rem; font-weight: 400; color: var(--grey-dark); }
.checks input { width: auto; }
.form-note { font-size: .82rem; color: var(--grey); }
.form-success, .form-error { display: none; padding: 1rem; border-radius: 8px; margin-top: 1rem; }
.form-success { background: #e9f7ee; border: 1px solid #b8e3c6; color: #1d6b3a; }
.form-error { background: #fdecec; border: 1px solid #f3b9b9; color: #8a1f1f; }
.form-error a { color: inherit; text-decoration: underline; }
.field input:invalid:not(:placeholder-shown), .field input.touched:invalid { border-color: #d14343; }
.btn[disabled] { opacity: .7; cursor: default; transform: none; }

/* FAQ */
details { border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.25rem; margin-bottom: .75rem; background: var(--white); }
summary { cursor: pointer; font-weight: 600; color: var(--navy); list-style: none; display: flex; justify-content: space-between; align-items: center; }
summary::after { content: "+"; font-size: 1.3rem; color: var(--grey); }
details[open] summary::after { content: "–"; }
details p { margin: .75rem 0 0; color: var(--grey-dark); font-size: .95rem; }

/* Page hero (inner pages) */
.page-hero { background: var(--navy); color: #dfe5f5; padding: 64px 0; }
.page-hero h1 { color: var(--white); }
.page-hero .eyebrow { color: #a9b6dd; }
.page-hero p { max-width: 640px; font-size: 1.1rem; opacity: .9; }

/* Footer */
footer { background: #0f1b3d; color: #aab4d0; padding: 56px 0 24px; font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
footer h4 { color: var(--white); font-size: .95rem; margin-bottom: .9rem; letter-spacing: .04em; }
footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .45rem; }
footer a { color: #aab4d0; }
footer a:hover { color: var(--white); }
.footer-brand img { width: 64px; border-radius: 8px; margin-bottom: 1rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 1.25rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: .75rem; font-size: .82rem; }

/* Responsive */
@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .values, .product-list { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-grid, .founder-grid, .contact-grid, .category-head { grid-template-columns: 1fr; }
  .hero-card { max-width: 480px; }
}
@media (max-width: 760px) {
  section { padding: 56px 0; }
  .nav-links {
    display: none; position: absolute; top: 76px; left: 0; right: 0;
    background: var(--white); border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start; padding: 1rem 20px 1.25rem; gap: 1rem;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .nav-cta .btn { display: none; }
  .topbar { display: none; }
  .grid-2, .grid-3, .grid-4, .values, .product-list { grid-template-columns: 1fr; }
  .field-row, .checks { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .brand-text span { display: none; }
}