/* Perfect Dent — Porcelain Atelier
   Laboratoire de prothèse dentaire · Ain Sebaa, Casablanca
   Palette in OKLCH, neutrals tinted warm toward porcelain. */

:root {
  /* Porcelain neutrals — the material they work in */
  --porcelain:      oklch(0.973 0.006 78);
  --porcelain-deep: oklch(0.945 0.009 74);
  --surface:        oklch(0.995 0.003 82);
  --surface-warm:   oklch(0.982 0.006 76);

  /* Ink — warm graphite, never pure black */
  --ink:        oklch(0.265 0.013 66);
  --ink-soft:   oklch(0.455 0.013 66);
  --ink-faint:  oklch(0.60 0.012 68);

  /* Deep slate ground for dark sections */
  --slate:      oklch(0.285 0.018 218);
  --slate-deep: oklch(0.235 0.018 222);

  /* Accent — a single muted clinical teal, kept under 10% */
  --accent:       oklch(0.555 0.062 202);
  --accent-deep:  oklch(0.470 0.058 205);
  --accent-tint:  oklch(0.935 0.020 198);

  /* Hairlines */
  --line:        oklch(0.895 0.008 74);
  --line-strong: oklch(0.835 0.010 72);
  --line-light:  oklch(1 0 0 / 0.12);

  --font-display: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-body: "Outfit", system-ui, -apple-system, sans-serif;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px oklch(0.45 0.02 70 / 0.05), 0 2px 8px oklch(0.45 0.02 70 / 0.04);
  --shadow:    0 6px 18px oklch(0.42 0.02 70 / 0.06), 0 16px 40px oklch(0.42 0.02 70 / 0.07);
  --shadow-lg: 0 10px 30px oklch(0.38 0.02 70 / 0.08), 0 30px 70px oklch(0.38 0.02 70 / 0.10);

  --header-h: 76px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t: 0.45s var(--ease);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--porcelain);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body[dir="rtl"] {
  font-family: var(--font-body), "Segoe UI", Tahoma, sans-serif;
}

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

a {
  color: var(--accent-deep);
  text-decoration: none;
  transition: color var(--t);
}
a:hover { color: var(--ink); }

::selection { background: var(--accent-tint); color: var(--ink); }

.container { width: min(1160px, 90vw); margin-inline: auto; }

/* ── Typography ───────────────────────────── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-body);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin: 0 0 1rem;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
}
.section__head--center .eyebrow::before { display: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
}
h1 { font-size: clamp(2.6rem, 6vw, 4.25rem); font-weight: 500; }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
p { max-width: 68ch; }

/* ── Buttons ──────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.95rem 1.7rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--t), box-shadow var(--t), background var(--t), color var(--t), border-color var(--t);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--ink);
  color: var(--porcelain);
  border-color: var(--ink);
}
.btn--primary:hover { background: var(--slate-deep); color: #fff; box-shadow: var(--shadow); }

.btn--outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--outline:hover { border-color: var(--ink); background: var(--surface); }

.btn--whatsapp {
  background: oklch(0.72 0.16 152);
  color: #06231a;
  border-color: transparent;
  padding: 0.62rem 1.1rem;
  font-size: 0.82rem;
}
.btn--whatsapp:hover { background: oklch(0.66 0.16 152); color: #06231a; box-shadow: var(--shadow-sm); }

.btn--block { width: 100%; }

/* ── Header ───────────────────────────────── */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: oklch(0.973 0.006 78 / 0.78);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), background var(--t), box-shadow var(--t);
}
.header.scrolled {
  border-color: var(--line);
  background: oklch(0.973 0.006 78 / 0.92);
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1rem;
}

.logo { display: flex; align-items: center; gap: 0.75rem; color: var(--ink); }
.logo:hover { color: var(--ink); }
.logo__mark {
  width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.logo__img { width: 100%; height: 100%; object-fit: contain; }
.logo-teeth { width: 30px; height: 30px; }
.logo-teeth--sm { width: 26px; height: 26px; }
.logo-teeth .tooth--dark { fill: var(--slate); }
.logo-teeth .tooth--light { fill: var(--accent); }
.logo__text { display: flex; flex-direction: column; line-height: 1.15; }
.logo__text strong { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; }
.logo__text small {
  font-size: 0.68rem;
  color: var(--ink-faint);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.nav { display: flex; gap: 2rem; }
.nav a {
  position: relative;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 0.3rem 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { transform: scaleX(1); }

.header__actions { display: flex; align-items: center; gap: 0.85rem; }
.lang-toggle {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  color: var(--ink-soft);
  transition: border-color var(--t), color var(--t);
}
.lang-toggle:hover { border-color: var(--accent); color: var(--accent-deep); }

.menu-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; padding: 0.5rem; cursor: pointer;
}
.menu-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--ink); border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ─────────────────────────────────── */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 5.5rem) 0 6rem;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0; z-index: -3;
  background:
    radial-gradient(60% 50% at 88% 8%, oklch(0.555 0.062 202 / 0.10), transparent 70%),
    radial-gradient(50% 45% at 4% 92%, oklch(0.285 0.018 218 / 0.05), transparent 70%),
    linear-gradient(180deg, var(--porcelain) 0%, var(--porcelain-deep) 100%);
}
.hero__bg::after {
  /* faint ceramic hairline texture */
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px);
  background-size: 100% 2.6rem;
  opacity: 0.25;
  -webkit-mask-image: radial-gradient(70% 60% at 70% 30%, #000, transparent 75%);
          mask-image: radial-gradient(70% 60% at 70% 30%, #000, transparent 75%);
}

/* Background prosthesis-lab slideshow — falls back to gradient when absent */
.hero__slides {
  position: absolute; inset: 0; z-index: -2;
  pointer-events: none;
}
.hero__slide {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s var(--ease);
}
.hero__slide.is-active { opacity: 0.95; }

.hero__veil {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg,
      oklch(0.973 0.006 78 / 0.92) 0%,
      oklch(0.973 0.006 78 / 0.72) 28%,
      oklch(0.973 0.006 78 / 0.30) 58%,
      oklch(0.973 0.006 78 / 0.08) 100%),
    linear-gradient(180deg,
      oklch(0.973 0.006 78 / 0.40) 0%,
      transparent 22%,
      transparent 70%,
      var(--porcelain) 100%);
}
body[dir="rtl"] .hero__veil {
  background:
    linear-gradient(270deg,
      oklch(0.973 0.006 78 / 0.92) 0%,
      oklch(0.973 0.006 78 / 0.72) 28%,
      oklch(0.973 0.006 78 / 0.30) 58%,
      oklch(0.973 0.006 78 / 0.08) 100%),
    linear-gradient(180deg,
      oklch(0.973 0.006 78 / 0.40) 0%,
      transparent 22%,
      transparent 70%,
      var(--porcelain) 100%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
}
.hero__lead {
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin: 1.5rem 0 2.5rem;
  max-width: 50ch;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 3rem; }

.hero__stats {
  display: flex;
  list-style: none; padding: 0; margin: 0;
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}
.hero__stats li {
  display: flex; flex-direction: column;
  padding-inline: 1.75rem;
}
.hero__stats li:first-child { padding-inline-start: 0; }
.hero__stats li + li { border-inline-start: 1px solid var(--line); }
.hero__stats strong {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1;
}
.hero__stats span {
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-top: 0.4rem;
  letter-spacing: 0.02em;
}

.hero__card-inner {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2.4rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}
.hero__card-inner::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--accent);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.hero__card-inner h2 { font-size: 1.75rem; margin-bottom: 0.85rem; }
.hero__card-inner > p {
  color: var(--ink-soft);
  margin: 0 0 1.5rem;
  font-size: 0.98rem;
}

.check-list { list-style: none; padding: 0; margin: 0 0 1.75rem; }
.check-list li {
  position: relative;
  padding-inline-start: 1.75rem;
  margin-bottom: 0.7rem;
  font-size: 0.94rem;
  color: var(--ink-soft);
}
.check-list li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0; top: 0.55em;
  width: 7px; height: 7px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
}
.check-list--large li { font-size: 1.05rem; margin-bottom: 0.85rem; color: var(--ink); }

/* ── Trust bar ────────────────────────────── */
.trust {
  background: var(--slate-deep);
  color: oklch(0.92 0.01 200 / 0.85);
  padding: 1.15rem 0;
  text-align: center;
}
.trust p {
  margin: 0 auto;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* ── Sections ─────────────────────────────── */
.section { padding: 6.5rem 0; }
.section--alt { background: var(--porcelain-deep); }
.section__head { max-width: 660px; margin-bottom: 3.5rem; }
.section__head--center { text-align: center; margin-inline: auto; }
.section__desc { color: var(--ink-soft); margin-top: 1.1rem; font-size: 1.05rem; }

/* ── Services ─────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.service-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 2rem 1.8rem;
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.service-card::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 2px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: inline-start;
  transition: transform var(--t);
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--line-strong);
}
.service-card:hover::before { transform: scaleX(1); }

.service-card__icon {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--accent-deep);
  line-height: 1;
  padding-bottom: 1rem;
  margin-bottom: 1.1rem;
  border-bottom: 1px solid var(--line);
}
.service-card h3 { font-size: 1.4rem; margin-bottom: 0.55rem; }
.service-card p { margin: 0; font-size: 0.94rem; color: var(--ink-soft); }

/* featured referral card — solid ink, spans full width as a banner */
.service-card--accent {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 1.5rem 2.5rem;
  background: var(--slate-deep);
  border-color: transparent;
  color: var(--porcelain);
  padding: 2.25rem 2.4rem;
}
.service-card--accent::before { display: none; }
.service-card--accent:hover { transform: none; box-shadow: var(--shadow-lg); }
.service-card--accent .service-card__icon {
  color: var(--accent);
  border-color: var(--line-light);
  grid-row: span 2;
  align-self: start;
  border-bottom: none;
  border-inline-end: 1px solid var(--line-light);
  padding: 0 1.5rem 0 0;
  margin: 0;
  font-size: 2.2rem;
}
body[dir="rtl"] .service-card--accent .service-card__icon { padding: 0 0 0 1.5rem; }
.service-card--accent h3 { color: var(--porcelain); font-size: 1.6rem; }
.service-card--accent p { color: oklch(0.92 0.01 200 / 0.78); max-width: 60ch; }

/* ── Split / Partners ─────────────────────── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4.5rem;
  align-items: start;
}
.split__content p { color: var(--ink-soft); margin-bottom: 1.1rem; }
.split__content .check-list { margin-top: 1.75rem; }

/* ── Timeline ─────────────────────────────── */
.timeline {
  position: relative;
  display: flex; flex-direction: column;
  gap: 0;
}
.timeline__item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
}
.timeline__item:last-child { border-bottom: none; }
.timeline__step {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface);
  color: var(--accent-deep);
  font-family: var(--font-display);
  font-weight: 600; font-size: 1.2rem;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}
.timeline__item h4 { font-size: 1.25rem; margin-bottom: 0.3rem; }
.timeline__item p { margin: 0; font-size: 0.92rem; color: var(--ink-soft); }

/* ── Features ─────────────────────────────── */
.features-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.feature {
  padding: 2.5rem 1.75rem;
  border-inline-start: 1px solid var(--line);
}
.feature:first-child { border-inline-start: none; }
.feature h3 {
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
  padding-top: 1rem;
  border-top: 2px solid var(--accent);
  display: inline-block;
}
.feature p { margin: 0; font-size: 0.92rem; color: var(--ink-soft); }

/* ── Referral form ────────────────────────── */
.section--referral {
  background:
    radial-gradient(70% 90% at 100% 0%, oklch(0.555 0.062 202 / 0.12), transparent 60%),
    var(--slate);
  color: var(--porcelain);
}
.section--referral h2 { color: #fff; }
.section--referral .eyebrow { color: var(--accent); }
.section--referral .eyebrow::before { background: var(--accent); }

.referral-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
  align-items: start;
}
.referral-intro p { color: oklch(0.92 0.01 200 / 0.8); }
.referral-note {
  font-size: 0.88rem;
  margin-top: 1.75rem;
  padding: 1.1rem 1.25rem;
  background: oklch(1 0 0 / 0.06);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  color: oklch(0.92 0.01 200 / 0.78);
}

.referral-form {
  background: var(--surface);
  color: var(--ink);
  padding: 2.4rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.referral-form label { display: block; margin-bottom: 1.3rem; }
.referral-form label > span {
  display: block;
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 0.45rem;
  color: var(--ink-soft);
}
.referral-form input,
.referral-form select,
.referral-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-warm);
  transition: border-color var(--t), box-shadow var(--t);
}
.referral-form input:focus,
.referral-form select:focus,
.referral-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row label { margin-bottom: 0; }
.checkbox {
  display: flex !important;
  align-items: center; gap: 0.65rem;
  cursor: pointer;
}
.checkbox input { width: auto; accent-color: var(--accent-deep); }
.checkbox span { margin: 0 !important; color: var(--ink) !important; font-weight: 500 !important; }
.form-success {
  text-align: center;
  color: var(--accent-deep);
  font-weight: 600;
  margin-top: 1rem;
}

/* ── Contact ──────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: stretch;
}
.contact-list { list-style: none; padding: 0; margin: 2.25rem 0 0; }
.contact-list li {
  margin-bottom: 1.4rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--line);
}
.contact-list li:last-child { border-bottom: none; }
.contact-list strong {
  display: block;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-deep);
  margin-bottom: 0.45rem;
}
.contact-list a, .contact-list span { font-size: 1.05rem; color: var(--ink); }
.contact-list a:hover { color: var(--accent-deep); }

.map-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  min-height: 340px;
  position: relative;
  background: var(--porcelain-deep);
}
.map-frame iframe {
  width: 100%;
  height: 100%;
  min-height: 340px;
  border: 0;
  filter: grayscale(0.25) contrast(1.02);
}
.map-frame__bar {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.1rem;
  background: oklch(0.995 0.003 82 / 0.92);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
  font-weight: 500;
}
.map-frame__bar .btn { padding: 0.55rem 1.1rem; font-size: 0.82rem; }

/* ── Footer ───────────────────────────────── */
.footer {
  background: var(--slate-deep);
  color: oklch(0.92 0.01 200 / 0.65);
  padding: 3rem 0 2.5rem;
  text-align: center;
}
.footer__inner { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.footer__logo {
  display: inline-flex; padding: 0.6rem;
  background: oklch(1 0 0 / 0.95);
  border-radius: 12px; line-height: 0;
}
.footer p { margin: 0.15rem 0; }
.footer__small { font-size: 0.82rem; opacity: 0.6; letter-spacing: 0.02em; }
.footer__credit {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-light);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: oklch(0.92 0.01 200 / 0.5);
}
.footer__credit strong { color: oklch(0.92 0.01 200 / 0.78); font-weight: 600; }
.footer__credit a { color: var(--accent); }
.footer__credit a:hover { color: #fff; }

/* ── Scroll reveal ────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
[data-reveal].in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .btn:hover, .service-card:hover { transform: none; }
  .hero__slide { transition: none; }
  .hero__slide.is-active { opacity: 0.95; }
}

/* ── Responsive ───────────────────────────── */
@media (max-width: 980px) {
  .hero__grid, .split, .referral-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card--accent { grid-template-columns: 1fr; }
  .service-card--accent .service-card__icon {
    grid-row: auto;
    border-inline-end: none;
    border-bottom: 1px solid var(--line-light);
    padding: 0 0 1rem 0;
  }
  body[dir="rtl"] .service-card--accent .service-card__icon { padding: 0 0 1rem 0; }
  .features-row { grid-template-columns: repeat(2, 1fr); }
  .feature:nth-child(2) { border-inline-start: 1px solid var(--line); }
  .feature:nth-child(3) { border-inline-start: none; border-top: 1px solid var(--line); }
  .feature:nth-child(4) { border-top: 1px solid var(--line); }
}

@media (max-width: 680px) {
  .section { padding: 4.5rem 0; }
  .hero { padding-top: calc(var(--header-h) + 3.5rem); }
  .nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    flex-direction: column;
    background: var(--surface);
    padding: 1.5rem;
    gap: 1.1rem;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    opacity: 0; pointer-events: none;
    transition: transform var(--t), opacity var(--t);
  }
  .nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .menu-toggle { display: flex; }
  .header__actions .btn--whatsapp { display: none; }
  .services-grid, .features-row { grid-template-columns: 1fr; }
  .feature { border-inline-start: none !important; border-top: 1px solid var(--line); }
  .feature:first-child { border-top: none; }
  .form-row { grid-template-columns: 1fr; }
  .hero__stats { flex-wrap: wrap; gap: 1.5rem 0; }
  .hero__stats li { padding-inline: 1.25rem; }
  .hero__stats li:nth-child(1) { padding-inline-start: 0; }
}