/* Northlight Dental — Design tokens per design-tokens.md */
:root {
  --color-bg: #FBF9F6;
  --color-surface: #FFFFFF;
  --color-primary: #1F5C6B;
  --color-primary-dark: #153F49;
  --color-accent: #F2A488;
  --color-accent-soft: #FBE3D8;
  --color-text: #232B2C;
  --color-text-muted: #5E6B6C;
  --color-border: #E4DED4;
  --shadow-soft: 0 8px 24px rgba(31, 92, 107, 0.08);
  --radius: 16px;
  --font-head: "Fraunces", Georgia, serif;
  --font-body: "Manrope", -apple-system, "Segoe UI", sans-serif;
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 28px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
img { height: auto; }

h1, h2, h3 { font-family: var(--font-head); color: var(--color-primary); margin: 0 0 16px; }
h1 { font-size: 44px; line-height: 52px; font-weight: 600; }
h2 { font-size: 32px; line-height: 40px; font-weight: 600; }
h3 { font-size: 20px; line-height: 28px; font-weight: 500; }

p { margin: 0 0 16px; }

.caption { font-size: 14px; line-height: 20px; color: var(--color-text-muted); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 64px;
}

section { padding: 96px 0; }

/* ---------- Eyebrow / tags ---------- */
.eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.tag {
  display: inline-block;
  background: var(--color-accent-soft);
  color: var(--color-primary-dark);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  padding: 8px 14px;
  border-radius: 999px;
}

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 16px 32px;
  border-radius: 999px;
  border: none;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: background 0.2s ease;
}
.btn-primary:hover { background: var(--color-primary-dark); }

.link-call {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 15px;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.link-call:hover { color: var(--color-primary-dark); }

/* ---------- Header / logo ---------- */
.site-header { padding: 24px 0; }
.site-header .container { display: flex; justify-content: space-between; align-items: center; }

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  position: relative;
}
.wordmark .wm-north {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 26px;
  color: var(--color-primary);
  position: relative;
}
.wordmark .wm-arc {
  position: absolute;
  width: 12px;
  height: 12px;
  overflow: visible;
}
.wordmark .wm-dental {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 19px;
  color: var(--color-text-muted);
}

.lang-switch { font-size: 14px; font-weight: 600; color: var(--color-text-muted); }
.lang-switch a { color: var(--color-primary); text-decoration: none; }
.lang-switch a:hover { text-decoration: underline; }
.lang-switch span[aria-current] { color: var(--color-text-muted); }

/* ---------- Hero ---------- */
.hero { padding: 56px 0 96px; }
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}
.hero-copy .btn-row { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; margin: 32px 0 24px; }
.trust-signal { font-size: 14px; color: var(--color-text-muted); }
.trust-signal .stars { color: var(--color-accent); letter-spacing: 2px; }

.hero-visual {
  aspect-ratio: 7 / 8;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Value proposition ---------- */
.value-props { background: var(--color-surface); }
.value-props .lead { max-width: 720px; }
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.value-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  font-weight: 600;
  font-size: 15px;
}
.value-card .vc-icon { margin: 0 auto 16px; width: 48px; height: 48px; }

/* ---------- Before / after showcase ---------- */
.showcase h2 { max-width: 640px; }
.showcase .sub-copy { max-width: 640px; color: var(--color-text-muted); }
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.case-card > img { width: 100%; height: auto; }
.case-card .case-body { padding: 24px; }
.case-card .tag { margin-bottom: 12px; }
.ba-compare { display: grid; grid-template-columns: 1fr 1px 1fr; background: var(--color-border); gap: 0; }
.ba-compare .divider { background: var(--color-border); }

/* ---------- How it works ---------- */
.how-it-works { background: var(--color-surface); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
  counter-reset: step;
}
.step-card { position: relative; }
.step-card .step-icon { width: 64px; height: 64px; margin-bottom: 24px; }
.step-card .step-num {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

/* ---------- Team ---------- */
.team-intro { max-width: 720px; }
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  align-items: center;
  box-shadow: var(--shadow-soft);
}
.team-card .portrait { aspect-ratio: 1; border-radius: var(--radius); overflow: hidden; }
.team-card .portrait img { width: 100%; height: 100%; object-fit: cover; }
.team-card .credential { font-size: 14px; color: var(--color-text-muted); margin-bottom: 12px; }
.team-card blockquote {
  margin: 0;
  font-family: var(--font-head);
  font-style: italic;
  font-size: 17px;
  line-height: 26px;
  color: var(--color-text);
}

/* ---------- Testimonials ---------- */
.testimonials { background: var(--color-surface); }
.testimonials h2 em { font-style: normal; font-size: 16px; font-family: var(--font-body); font-weight: 400; color: var(--color-text-muted); display: block; margin-top: 8px; }
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.testimonial-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.testimonial-card .avatar { width: 56px; height: 56px; }
.testimonial-card blockquote { margin: 0; font-size: 16px; line-height: 26px; }
.testimonial-card cite { font-style: normal; font-size: 14px; color: var(--color-text-muted); }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--color-primary);
  border-radius: var(--radius);
  text-align: center;
  padding: 64px 32px;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255, 255, 255, 0.85); max-width: 520px; margin: 0 auto 32px; }
.cta-band .btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}
.cta-band .btn-primary:hover { background: #EFB89F; }
section.cta-section { padding-top: 0; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin-top: 48px; }
.faq-list details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 16px;
}
.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 17px;
  color: var(--color-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  font-family: var(--font-head);
  font-size: 22px;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { margin: 16px 0 0; color: var(--color-text-muted); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 64px 0 48px;
  font-size: 15px;
  line-height: 26px;
}
.site-footer .wordmark .wm-north { color: #fff; }
.site-footer .wordmark .wm-dental { color: rgba(255, 255, 255, 0.6); }
.site-footer a { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-grid h3 { color: #fff; font-size: 16px; }
.site-footer .legal {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
  font-size: 13px;
  line-height: 20px;
  color: rgba(255, 255, 255, 0.6);
}
.site-footer .lang-switch { margin-top: 16px; }
.site-footer .lang-switch a { color: var(--color-accent); }
.site-footer .lang-switch span[aria-current] { color: rgba(255,255,255,0.6); }

/* ---------- Sticky mobile CTA ---------- */
.sticky-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: var(--color-primary);
  padding: 12px 16px;
  text-align: center;
  transform: translateY(110%);
  transition: transform 0.3s ease;
  z-index: 50;
  display: none;
  box-shadow: 0 -4px 16px rgba(31, 92, 107, 0.2);
}
.sticky-cta.visible { transform: translateY(0); }
.sticky-cta a {
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  display: block;
}

/* ---------- Mobile ---------- */
@media (max-width: 768px) {
  body { font-size: 16px; line-height: 26px; }
  h1 { font-size: 32px; line-height: 40px; }
  h2 { font-size: 26px; line-height: 34px; }
  .container { padding: 0 24px; }
  section { padding: 56px 0; }
  .hero { padding: 24px 0 56px; }
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .value-grid, .case-grid, .steps-grid, .team-grid, .testimonial-grid { grid-template-columns: 1fr; }
  .team-card { grid-template-columns: 96px 1fr; padding: 24px; }
  .sticky-cta { display: block; }
  .cta-band { padding: 48px 24px; }
}

/* ---------- FAQ open/close animation ---------- */
.faq-list .faq-answer {
  overflow: hidden;
  transition: height 0.4s cubic-bezier(0.33, 1, 0.68, 1),
              opacity 0.3s ease,
              transform 0.4s cubic-bezier(0.33, 1, 0.68, 1);
}
@media (prefers-reduced-motion: reduce) {
  .faq-list .faq-answer { transition: none; }
}

/* ---------- Language toggle (single button, swaps to the other locale) ---------- */
.lang-toggle {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-primary-dark);
  background: var(--color-accent-soft);
  border-radius: 999px;
  padding: 9px 18px;
  text-decoration: none;
  transition: background 0.2s ease;
}
.lang-toggle:hover { background: var(--color-accent); }
.site-footer .lang-toggle {
  display: inline-block;
  margin-top: 16px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #FFFFFF;
}
.site-footer .lang-toggle:hover { background: rgba(255, 255, 255, 0.12); }

/* ---------- Scroll-reveal (activated by JS via html.anim) ---------- */
html.anim .reveal { opacity: 0; transform: translateY(24px); }
html.anim .reveal.revealed {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease var(--rd, 0ms),
              transform 0.7s cubic-bezier(0.33, 1, 0.68, 1) var(--rd, 0ms);
}

/* ---------- Hover micro-interactions ---------- */
.value-card, .case-card, .team-card, .testimonial-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.value-card:hover, .case-card:hover, .team-card:hover, .testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(31, 92, 107, 0.14);
}
.case-card { overflow: hidden; }
.case-card > img { transition: transform 0.5s ease; }
.case-card:hover > img { transform: scale(1.03); }
.hero-visual img { transition: transform 0.6s ease; }
.hero-visual:hover img { transform: scale(1.02); }
.btn-primary { transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(31, 92, 107, 0.18); }
.step-card .step-icon { transition: transform 0.3s ease; }
.step-card:hover .step-icon { transform: translateY(-3px); }
@media (prefers-reduced-motion: reduce) {
  .value-card, .case-card, .team-card, .testimonial-card, .case-card > img,
  .hero-visual img, .btn-primary, .step-card .step-icon { transition: none; transform: none; }
}