/* PTP Ceramics — bilingual Cloudflare Pages static site v4 */
:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --ink: #111417;
  --muted: #5f6773;
  --line: #e4e7eb;
  --navy: #071d36;
  --navy-2: #0b2d52;
  --radius: 24px;
  --shadow: 0 24px 70px rgba(7, 29, 54, 0.13);
  --max: 1160px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 80% 10%, rgba(7, 29, 54, .08), transparent 30%),
    linear-gradient(180deg, #fff 0%, var(--bg) 45%, #fff 100%);
  color: var(--ink);
  line-height: 1.6;
}
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
.skip-link {
  position: absolute; left: -999px; top: 1rem; background: #fff; padding: .75rem 1rem; z-index: 20; border-radius: 12px;
}
.skip-link:focus { left: 1rem; }
.site-header {
  position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.86); backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(228,231,235,.8);
}
.nav {
  max-width: var(--max); margin: 0 auto; min-height: 76px; padding: 0 1.25rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.brand {
  display: inline-flex; align-items: center; gap: .8rem; font-weight: 900; letter-spacing: -.035em; color: var(--navy);
}
.brand img { width: 48px; height: 48px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 1.25rem; font-weight: 760; }
.nav-links a { color: #303741; }
.nav-links a:hover { color: var(--navy-2); }
.language-link {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .35rem .65rem;
  font-size: .85rem;
  font-weight: 900;
  color: var(--navy) !important;
  background: #fff;
}
.menu-button {
  display: none; border: 1px solid var(--line); background: #fff; border-radius: 999px;
  padding: .55rem .9rem; font-weight: 800; color: var(--navy);
}
.button {
  display: inline-flex; min-height: 48px; align-items: center; justify-content: center;
  padding: .8rem 1.1rem; border-radius: 999px; background: var(--navy); color: #fff;
  border: 1px solid var(--navy); font-weight: 900; box-shadow: 0 14px 32px rgba(7, 29, 54, .22);
}
.button:hover { background: var(--navy-2); }
.button-secondary { background: #fff; color: var(--navy); border-color: var(--line); box-shadow: none; }
.button-small { min-height: 38px; padding: .55rem .85rem; color: #fff !important; }
.hero {
  max-width: var(--max); margin: 0 auto; padding: 6rem 1.25rem 4rem;
  min-height: 650px; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); gap: 3rem; align-items: center;
}
.eyebrow {
  margin: 0 0 .85rem; color: var(--navy-2); text-transform: uppercase; letter-spacing: .18em; font-size: .78rem; font-weight: 950;
}
h1, h2, h3 { margin: 0; letter-spacing: -.05em; line-height: 1.04; }
h1 { font-size: clamp(3.2rem, 7vw, 6.3rem); max-width: 830px; }
h2 { font-size: clamp(2.1rem, 4vw, 4rem); }
h3 { font-size: 1.25rem; }
.hero-text { margin: 1.4rem 0 0; max-width: 720px; color: var(--muted); font-size: clamp(1.1rem, 1.8vw, 1.35rem); }
.hero-actions { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: .85rem; }
.hero-visual {
  border-radius: calc(var(--radius) + 14px); background: rgba(255,255,255,.78); border: 1px solid var(--line);
  box-shadow: var(--shadow); padding: clamp(1rem, 4vw, 2rem);
}
.hero-visual .emblem { display: block; width: 100%; filter: drop-shadow(0 18px 28px rgba(7, 29, 54, .12)); }
.logo-strip { max-width: var(--max); margin: 0 auto; padding: 1rem 1.25rem 4rem; text-align: center; }
.logo-strip img { width: min(940px, 100%); opacity: .97; }
.section { max-width: var(--max); margin: 0 auto; padding: 5.5rem 1.25rem; }
.section-heading { max-width: 840px; margin-bottom: 2rem; }
.section-heading > p:not(.eyebrow) { color: var(--muted); font-size: 1.12rem; }
.grid { display: grid; gap: 1rem; }
.cards { grid-template-columns: repeat(3, 1fr); }
.card {
  min-height: 250px; padding: 1.5rem; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: 0 10px 32px rgba(7, 29, 54, .06);
}
.card-number {
  display: inline-flex; width: 42px; height: 42px; align-items: center; justify-content: center;
  margin-bottom: 1rem; border-radius: 50%; background: #edf4fb; color: var(--navy); font-weight: 950;
}
.card p, .text-block p, .feature p, .application-list p, .statement p, .cta p { color: var(--muted); }
.section-dark {
  max-width: none; background: linear-gradient(135deg, #111417, #071d36); color: #fff;
  padding-left: max(1.25rem, calc((100vw - var(--max)) / 2 + 1.25rem));
  padding-right: max(1.25rem, calc((100vw - var(--max)) / 2 + 1.25rem));
}
.section-dark .eyebrow { color: #8fb7df; }
.section-dark p { color: #cbd5e1; }
.split { display: grid; grid-template-columns: .95fr 1.05fr; gap: 3rem; align-items: start; }
.text-block { font-size: 1.12rem; }
.feature-row {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 3rem; overflow: hidden;
  border: 1px solid rgba(255,255,255,.13); border-radius: var(--radius); background: rgba(255,255,255,.13);
}
.feature { background: rgba(255,255,255,.05); padding: 1.5rem; }
.application-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.application-list > div { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.section-muted {
  max-width: none; background: #f1f5f9;
  padding-left: max(1.25rem, calc((100vw - var(--max)) / 2 + 1.25rem));
  padding-right: max(1.25rem, calc((100vw - var(--max)) / 2 + 1.25rem));
}
.statement { display: grid; grid-template-columns: 260px 1fr; gap: 2.5rem; align-items: center; }
.statement img {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem;
  box-shadow: 0 16px 40px rgba(7, 29, 54, .08);
}
.cta {
  max-width: var(--max); margin: 1rem auto 5rem; padding: 2rem; background: #fff; border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 10px); box-shadow: var(--shadow);
  display: grid; grid-template-columns: 1fr 340px; gap: 2rem; align-items: center;
}
.contact-card { background: #f8fafc; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; }
.contact-card p { margin-top: 0; }
.footer {
  max-width: var(--max); margin: 0 auto; padding: 2rem 1.25rem 3rem; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; color: var(--muted);
}
.footer img { width: 320px; }
@media (max-width: 860px) {
  .menu-button { display: inline-flex; }
  .nav-links {
    display: none; position: absolute; left: 1rem; right: 1rem; top: 76px; padding: 1rem; background: #fff;
    border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow);
    flex-direction: column; align-items: stretch;
  }
  .nav-links.is-open { display: flex; }
  .hero, .cards, .split, .feature-row, .application-list, .statement, .cta { grid-template-columns: 1fr; }
  .hero { padding-top: 4rem; min-height: auto; }
  .hero-visual { order: -1; max-width: 440px; margin: 0 auto; }
  .section { padding-top: 4rem; padding-bottom: 4rem; }
  .footer { align-items: flex-start; flex-direction: column; }
}