:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f6f7f9;
  --color-text: #0f1f2e;
  --color-text-muted: #5a6b79;
  --color-primary: #0f2a46;
  --color-primary-dark: #081c30;
  --color-primary-light: #eaeef3;
  --color-accent: #c6983f;
  --color-border: #e1e5ea;
  --color-on-primary: #ffffff;
  --color-navy: #0f2a46;
  --color-navy-dark: #081c30;
  --color-gold: #c6983f;
  --radius: 12px;
  --max-width: 1140px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #0a1420;
    --color-bg-alt: #101c2b;
    --color-text: #eef2f6;
    --color-text-muted: #9fb0bf;
    --color-primary: #d7aa57;
    --color-primary-dark: #bb8c3c;
    --color-primary-light: #2a2214;
    --color-accent: #e3b767;
    --color-border: #22303f;
    --color-on-primary: #10151b;
  }
}
:root[data-theme="dark"] {
  --color-bg: #0a1420;
  --color-bg-alt: #101c2b;
  --color-text: #eef2f6;
  --color-text-muted: #9fb0bf;
  --color-primary: #d7aa57;
  --color-primary-dark: #bb8c3c;
  --color-primary-light: #2a2214;
  --color-accent: #e3b767;
  --color-border: #22303f;
  --color-on-primary: #10151b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-alt { background: var(--color-bg-alt); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 16px; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 12px;
  display: block;
}
.lede { color: var(--color-text-muted); font-size: 1.08rem; max-width: 640px; }

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.logo { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 1.3rem; letter-spacing: -0.01em; text-decoration: none; color: var(--color-text); }
.logo img { height: 34px; width: auto; display: block; }
.logo .sub { color: var(--color-text-muted); font-weight: 500; font-size: 0.95rem; padding-left: 12px; border-left: 1px solid var(--color-border); }
nav.links { display: flex; gap: 28px; align-items: center; }
nav.links a { text-decoration: none; color: var(--color-text-muted); font-weight: 600; font-size: 0.95rem; }
nav.links a:hover { color: var(--color-primary); }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: 999px; font-weight: 700; font-size: 0.95rem;
  text-decoration: none; border: 2px solid transparent; cursor: pointer;
}
.btn-primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-outline { border-color: var(--color-border); color: var(--color-text); background: transparent; }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); }
.menu-toggle { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--color-text); }

/* Hero */
.hero { padding: 96px 0 72px; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(2.1rem, 4.2vw, 3.1rem); }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; font-size: 0.88rem; color: var(--color-text-muted); }
.hero-visual {
  background: linear-gradient(160deg, var(--color-primary-light), var(--color-bg-alt));
  border: 1px solid var(--color-border); border-radius: 20px; padding: 28px;
}
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 18px; }
.stat-card .num { font-size: 1.6rem; font-weight: 800; color: var(--color-primary); }
.stat-card .label { font-size: 0.85rem; color: var(--color-text-muted); margin-top: 4px; }

/* Generic grids */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 40px; }
.card { border: 1px solid var(--color-border); border-radius: var(--radius); padding: 26px; background: var(--color-bg); }
.card .icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--color-primary-light); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; font-size: 1.25rem; margin-bottom: 16px;
}
.card h3 { font-size: 1.05rem; }
.card p { color: var(--color-text-muted); font-size: 0.93rem; margin: 0; }

/* Product cards (home) */
.product-card {
  border: 1px solid var(--color-border); border-radius: 20px; padding: 36px;
  background: var(--color-bg); display: flex; flex-direction: column; gap: 16px;
}
.product-card .tag {
  align-self: flex-start; font-size: 0.75rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.06em; padding: 5px 12px; border-radius: 999px;
  background: var(--color-primary-light); color: var(--color-primary);
}
.product-card ul { margin: 0; padding-left: 18px; color: var(--color-text-muted); font-size: 0.93rem; }
.product-card li { margin-bottom: 6px; }
.product-card .actions { margin-top: auto; display: flex; gap: 12px; flex-wrap: wrap; }

/* Standards strip */
.standards { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.standard-pill {
  border: 1px solid var(--color-border); border-radius: 999px; padding: 8px 16px;
  font-size: 0.85rem; font-weight: 700; color: var(--color-text-muted); background: var(--color-bg-alt);
}

/* Steps */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 44px; }
.step { position: relative; padding-top: 8px; }
.step .step-num {
  counter-increment: step; width: 36px; height: 36px; border-radius: 50%;
  background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 800; margin-bottom: 16px;
}
.step .step-num::before { content: counter(step); }
.step h3 { font-size: 1rem; }
.step p { color: var(--color-text-muted); font-size: 0.92rem; margin: 0; }

/* CTA */
.cta-box {
  background: linear-gradient(135deg, var(--color-navy-dark), var(--color-navy));
  border-radius: 24px; padding: 56px; color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap;
}
.cta-box h2 { color: #fff; margin-bottom: 10px; }
.cta-box p { color: rgba(255,255,255,0.85); margin: 0; max-width: 460px; }
.cta-box .btn-primary { background: var(--color-gold); color: var(--color-navy-dark); }
.cta-box .btn-primary:hover { background: #d7ac55; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; margin-top: 40px; align-items: start; }
.contact-info .item { display: flex; gap: 14px; margin-bottom: 20px; }
.contact-info .item .icon {
  width: 40px; height: 40px; border-radius: 10px; background: var(--color-primary-light); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-info .item .title { font-weight: 700; font-size: 0.95rem; }
.contact-info .item .detail { color: var(--color-text-muted); font-size: 0.92rem; }

form { display: grid; gap: 14px; }
label { font-size: 0.85rem; font-weight: 700; color: var(--color-text-muted); }
input, textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--color-border);
  background: var(--color-bg); color: var(--color-text); font-family: inherit; font-size: 0.95rem;
}
textarea { min-height: 110px; resize: vertical; }
form .btn-primary { width: fit-content; margin-top: 6px; }

.contact-simple {
  margin-top: 40px;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 24px 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
}
.contact-simple .icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: var(--color-primary-light); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem; flex-shrink: 0;
}
.contact-simple .title { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 2px; }
.contact-simple a { font-size: 1.3rem; font-weight: 800; color: var(--color-text); text-decoration: none; }
.contact-simple a:hover { color: var(--color-primary); }

footer { border-top: 1px solid var(--color-border); padding: 40px 0; }
.footer-row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; font-size: 0.88rem; color: var(--color-text-muted); }
.footer-row a { color: var(--color-primary); font-weight: 600; text-decoration: none; }
.footer-row a:hover { text-decoration: underline; }

@media (max-width: 880px) {
  nav.links { display: none; }
  .menu-toggle { display: inline-flex; }
  .hero { grid-template-columns: 1fr; padding-top: 48px; }
  .grid-3, .grid-2, .steps { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .cta-box { flex-direction: column; text-align: center; padding: 40px 28px; }
  .cta-box p { max-width: none; }
}
@media (max-width: 560px) {
  .grid-3, .grid-2, .steps { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
}