/* Stair Parts Supplier Guide — supplier comparison site
   No supplier logos/images; text + CSS only. */

:root {
  --bg: #f6f3ee;
  --bg-alt: #ffffff;
  --ink: #1c2420;
  --muted: #5a635e;
  --line: #ddd6cb;
  --accent: #2f5d50;
  --accent-dark: #23463c;
  --accent-soft: #e7f0ec;
  --warm: #b56a3a;
  --warm-soft: #f4ebe3;
  --card: #ffffff;
  --shadow: 0 10px 30px rgba(28, 36, 32, 0.08);
  --radius: 16px;
  --max: 1100px;
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, #efe7da 0, transparent 40%),
    radial-gradient(circle at top right, #e4eee9 0, transparent 35%),
    var(--bg);
  line-height: 1.55;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-dark); }

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(246, 243, 238, 0.9);
  border-bottom: 1px solid rgba(221, 214, 203, 0.8);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  text-decoration: none;
  color: inherit;
}

.brand-name {
  font-weight: 750;
  letter-spacing: 0.01em;
  font-size: 1.05rem;
}

.brand-tag {
  font-size: 0.78rem;
  color: var(--muted);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 550;
}

.nav-links a:hover { color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border: 0;
  border-radius: 999px;
  padding: 0.75rem 1.2rem;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 18px rgba(47, 93, 80, 0.25);
}
.btn-primary:hover { background: var(--accent-dark); color: #fff; }

.btn-secondary {
  background: var(--bg-alt);
  color: var(--accent-dark);
  border: 1px solid var(--line);
}
.btn-secondary:hover { background: var(--accent-soft); color: var(--accent-dark); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid transparent;
}
.btn-ghost:hover { border-color: var(--line); background: rgba(255,255,255,0.55); }

.hero {
  padding: 3.5rem 0 2.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 2rem;
  align-items: stretch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 650;
  margin-bottom: 1rem;
}

.hero h1 {
  margin: 0 0 0.9rem;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 38rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.4rem;
}



.hero-card {
  background: linear-gradient(160deg, #2f5d50, #1f3f36);
  color: #f4f7f5;
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
}

.hero-card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
}

.hero-card p {
  margin: 0 0 1.2rem;
  color: rgba(244, 247, 245, 0.86);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
}

.stat {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  padding: 0.8rem;
  text-align: center;
}

.stat-num {
  display: block;
  font-size: 1.35rem;
  font-weight: 750;
}

.stat-label {
  font-size: 0.78rem;
  color: rgba(244,247,245,0.75);
}

.section {
  padding: 2.75rem 0;
}

.section-alt {
  background: rgba(255,255,255,0.55);
  border-block: 1px solid rgba(221, 214, 203, 0.7);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1.5rem;
}

.section-head h2 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  max-width: 40rem;
}

.supplier {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1.4rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.25rem;
}

.supplier-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
  margin-bottom: 1rem;
}

.supplier-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--warm);
  margin-bottom: 0.35rem;
}

.supplier h3 {
  margin: 0 0 0.45rem;
  font-size: 1.35rem;
}

.supplier-summary {
  margin: 0;
  color: var(--muted);
  max-width: 48rem;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
  margin: 1.1rem 0 0.4rem;
}

.cat-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.95rem 1rem;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
  min-height: 5.2rem;
}

.cat-card:hover {
  border-color: #b7cfc5;
  background: var(--accent-soft);
  transform: translateY(-2px);
  color: inherit;
}

.cat-icon {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--line);
  margin-bottom: 0.55rem;
  font-size: 0.95rem;
}

.cat-card strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}

.cat-card span {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

.note {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0.75rem 0 0;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.compare-table th,
.compare-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

.compare-table th {
  background: #f3eee6;
  font-size: 0.92rem;
}

.compare-table td:first-child {
  font-weight: 650;
}

.compare-table tr:last-child td { border-bottom: 0; }

.yes, .no, .partial {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 650;
}

.yes { color: #21674f; }
.no { color: #8a6a57; }
.partial { color: #6b5b2e; }

.pill {
  display: inline-block;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
}

.quote, .contact {
  scroll-margin-top: 5rem;
}

.form-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field.full { grid-column: 1 / -1; }

label {
  font-size: 0.9rem;
  font-weight: 650;
}

.req { color: #b2452d; }

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  border: 1px solid #cfc6b8;
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(47, 93, 80, 0.28);
  border-color: var(--accent);
}

textarea { min-height: 110px; resize: vertical; }

.checks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.55rem 0.85rem;
}

.check {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 500;
  font-size: 0.92rem;
}

.form-note {
  margin: 0.2rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
  background: var(--warm-soft);
  border: 1px dashed #c9b9a4;
  border-radius: 12px;
  padding: 0.85rem 1rem;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 0.4rem;
}

.form-status {
  font-size: 0.9rem;
  color: var(--muted);
}

.form-status.error { color: #9b2f1e; }
.form-status.ok { color: #21674f; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  max-width: 40rem;
}

.contact-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.contact-card h3 { margin-top: 0; }

.contact-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.contact-list li {
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.15rem;
}

.contact-list li:last-child { border-bottom: 0; }
.contact-list span { color: var(--muted); font-size: 0.85rem; }

.disclaimer {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.site-footer {
  padding: 2rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

@media (max-width: 860px) {
  .hero-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .hero { padding-top: 2rem; }
  .supplier, .form-card, .contact-card, .hero-card { padding: 1.1rem; }
}