/* Zahntechnik Mank — clinical white system */
:root {
  --bg: #FAFAF8;
  --bg-alt: #F2F0EA;
  --ink: #0A0A0A;
  --ink-2: #2B2B28;
  --ink-3: #6B6B66;
  --line: #E5E2DA;
  --line-2: #D6D2C7;
  --accent: oklch(0.58 0.07 200);
  --accent-soft: oklch(0.94 0.02 200);
  --white: #FFFFFF;

  --font-sans: "Inter Tight", "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --container: 1320px;
  --pad-x: 48px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--pad-x); }

/* ——— NAV ——— */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.wordmark {
  display: flex; align-items: baseline; gap: 10px;
  font-weight: 600; letter-spacing: -0.02em;
}
.wordmark .wm-mark {
  font-size: 22px; letter-spacing: -0.04em;
}
.wordmark .wm-dot {
  display: inline-block; width: 6px; height: 6px; background: var(--accent);
  transform: translateY(-2px) rotate(45deg);
}
.wordmark .wm-sub {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--ink-3); text-transform: uppercase;
  letter-spacing: 0.08em; font-weight: 400;
}
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--ink-2);
  padding: 8px 14px; border-radius: 2px;
  position: relative;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px;
  height: 1px; background: var(--accent);
}
.nav-cta {
  margin-left: 16px;
  font-size: 13px; font-weight: 500;
  padding: 10px 18px; border: 1px solid var(--ink); color: var(--ink);
  border-radius: 0;
}
.nav-cta:hover { background: var(--ink); color: var(--bg); }

/* ——— TYPE ——— */
h1, h2, h3, h4 { font-weight: 500; letter-spacing: -0.02em; margin: 0; }
.h-display {
  font-size: clamp(48px, 6.4vw, 92px);
  line-height: 1.02; letter-spacing: -0.035em; font-weight: 500;
}
.h-section {
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.05; letter-spacing: -0.028em; font-weight: 500;
}
.h-card { font-size: 22px; line-height: 1.2; letter-spacing: -0.015em; font-weight: 600; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--ink-3); font-weight: 400;
}
.lead { font-size: 19px; line-height: 1.5; color: var(--ink-2); max-width: 56ch; }
.body-text { font-size: 15px; line-height: 1.6; color: var(--ink-2); }

/* ——— BUTTONS ——— */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; font-size: 14px; font-weight: 500;
  border: 1px solid var(--ink); background: var(--ink); color: var(--bg);
  letter-spacing: 0.01em; transition: all 0.15s ease;
}
.btn:hover { background: transparent; color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--bg); }
.btn-arrow { width: 12px; height: 12px; transition: transform 0.15s ease; }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ——— SECTIONS ——— */
section { padding: 96px 0; border-top: 1px solid var(--line); }
section:first-of-type { border-top: 0; }
.section-head {
  display: grid; grid-template-columns: 1fr 2fr; gap: 48px;
  margin-bottom: 64px;
}
.section-head .eyebrow-row {
  display: flex; align-items: center; gap: 12px;
}
.section-head .num {
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-3);
}
.rule { height: 1px; background: var(--line); border: 0; }

/* ——— CARDS ——— */
.card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 32px;
  display: flex; flex-direction: column; gap: 16px;
}
.card .card-num {
  font-family: var(--font-mono); font-size: 11px; color: var(--accent);
  letter-spacing: 0.08em;
}

/* ——— FOOTER ——— */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 64px 0 32px;
  background: var(--bg);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 48px; border-bottom: 1px solid var(--line);
}
.footer-grid h5 {
  font-family: var(--font-mono); font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--ink-3); font-weight: 400;
  margin: 0 0 16px;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { font-size: 14px; line-height: 2; color: var(--ink-2); }
.footer-grid li a:hover { color: var(--accent); }
.footer-base {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 32px; font-family: var(--font-mono); font-size: 11px;
  color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.08em;
}

/* ——— UTILITY ——— */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.split-7-5 { display: grid; grid-template-columns: 7fr 5fr; gap: 64px; align-items: start; }
.split-5-7 { display: grid; grid-template-columns: 5fr 7fr; gap: 64px; align-items: start; }

.image-wrap {
  position: relative; overflow: hidden;
  background: var(--bg-alt);
}
.image-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.85) contrast(1.02);
}
.image-tag {
  position: absolute; left: 16px; bottom: 16px;
  font-family: var(--font-mono); font-size: 10px;
  background: var(--bg); padding: 6px 10px;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ink-2);
}

/* checked list */
ul.feature-list { list-style: none; padding: 0; margin: 0; }
ul.feature-list li {
  display: grid; grid-template-columns: 24px 1fr; gap: 12px;
  padding: 18px 0; border-top: 1px solid var(--line);
  font-size: 15px; line-height: 1.5; color: var(--ink-2);
}
ul.feature-list li:last-child { border-bottom: 1px solid var(--line); }
ul.feature-list li::before {
  content: ""; width: 8px; height: 8px;
  background: var(--accent);
  margin-top: 8px;
  align-self: start;
}

/* hero variants set on body */
body[data-hero="b"] .hero-a { display: none; }
body[data-hero="a"] .hero-b { display: none; }
body[data-hero="c"] .hero-a, body[data-hero="c"] .hero-b { display: none; }

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  inset: auto 0 0;
  z-index: 9999;
  background: rgba(255,255,255,0.98);
  border-top: 1px solid var(--line);
  padding: 18px 24px;
  box-shadow: 0 -10px 30px rgba(0,0,0,0.08);
}
.cookie-banner__content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--container);
  margin: 0 auto;
}
.cookie-banner__content strong { display: block; margin-bottom: 6px; }
.cookie-banner__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.cookie-banner__actions a {
  color: var(--ink);
  text-decoration: underline;
  font-size: 14px;
}
.cookie-banner__actions button {
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  padding: 12px 18px;
  font-size: 14px;
}
.cookie-banner__actions .cookie-consent-reject {
  background: transparent;
  color: var(--ink);
}
.cookie-banner__actions .cookie-consent-reject:hover {
  background: rgba(0,0,0,0.04);
}

.footer-base a {
  color: inherit;
  text-decoration: none;
}
.footer-base a:hover {
  color: var(--accent);
}

/* type tweak */
body[data-type="serif"] { --font-sans: "Fraunces", "Inter Tight", serif; }
body[data-type="grotesk"] { --font-sans: "Space Grotesk", "Inter Tight", sans-serif; }

/* ===================================================================
   MOBILE NAV (hamburger)
   =================================================================== */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 0; margin-left: 16px;
  border: 0; background: transparent;
}
.nav-toggle__bar {
  display: block; width: 24px; height: 1.5px;
  background: var(--ink);
  transition: transform .3s ease, opacity .2s ease;
}

/* nav subtle shadow once the page is scrolled */
.nav.is-scrolled { box-shadow: 0 1px 16px rgba(10,10,10,0.06); }

/* ===================================================================
   SCROLL REVEAL — subtle, applied via JS (.reveal added on load)
   =================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s cubic-bezier(.22,.61,.36,1),
              transform .7s cubic-bezier(.22,.61,.36,1);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* hover polish */
.image-wrap img { transition: transform .6s cubic-bezier(.22,.61,.36,1); }
.card { transition: background .2s ease; }
.card:hover { background: var(--accent-soft); }
.card:hover .image-wrap img { transform: scale(1.035); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .image-wrap img, .card { transition: none; }
  html { scroll-behavior: auto; }
}

/* ===================================================================
   RESPONSIVE — tablet
   =================================================================== */
@media (max-width: 980px) {
  :root { --pad-x: 32px; }

  .nav-links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 28px rgba(10,10,10,0.06);
    padding: 8px var(--pad-x) 28px;
    max-height: calc(100dvh - 72px);
    overflow-y: auto;
    transform: translateY(-14px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .26s ease, transform .26s ease, visibility .26s;
  }
  body.nav-open .nav-links {
    opacity: 1; transform: none; visibility: visible;
  }
  .nav-toggle { display: flex; }
  .nav-links a {
    font-size: 17px;
    padding: 16px 2px;
    border-bottom: 1px solid var(--line);
  }
  .nav-links a.active::after { display: none; }
  .nav-links a.active { color: var(--accent); }
  .nav-cta {
    margin-left: 0; margin-top: 18px;
    justify-content: center; text-align: center;
    border: 1px solid var(--ink);
    border-bottom: 1px solid var(--ink) !important;
    padding: 14px 18px;
  }
  body.nav-open .nav-toggle__bar:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  body.nav-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
  body.nav-open .nav-toggle__bar:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  /* stack the layout grids */
  .split, .split-7-5, .split-5-7 { grid-template-columns: 1fr; gap: 48px; }
  .section-head { grid-template-columns: 1fr; gap: 20px; margin-bottom: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }

  [style*="grid-template-columns: repeat(4"] { grid-template-columns: 1fr 1fr !important; }
  [style*="grid-template-columns: repeat(5"] { grid-template-columns: 1fr 1fr !important; }
  [style*="grid-template-columns: 7fr 5fr"],
  [style*="grid-template-columns: 1fr 1fr 1fr"],
  [style*="grid-template-columns: 120px 1fr 360px"],
  [style*="grid-template-columns: 120px 1fr"] { grid-template-columns: 1fr !important; }
  .hero-b > div { grid-template-columns: 1fr !important; min-height: 0 !important; }
  .hero-b .image-wrap { min-height: 60vh; }

  section { padding: 72px 0; }
}

/* ===================================================================
   RESPONSIVE — phone
   =================================================================== */
@media (max-width: 600px) {
  :root { --pad-x: 20px; }

  section { padding: 52px 0; }
  .hero-a { padding: 56px 0 64px !important; }
  .section-head { margin-bottom: 36px; }

  /* everything to a single column */
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  [style*="grid-template-columns: repeat(4"],
  [style*="grid-template-columns: repeat(5"],
  [style*="grid-template-columns: repeat(2"],
  [style*="grid-template-columns: 1fr 1fr"] { grid-template-columns: 1fr !important; }

  /* hero meta strip + similar cell borders look cleaner stacked */
  .footer-base { flex-direction: column; gap: 10px; align-items: flex-start; }

  .h-display { font-size: clamp(40px, 12vw, 64px); }
}