/* ==========================================================================
   THAIS UCHÔA — ASSESSORIA CONTÁBIL
   Design tokens: off-white / bege / chumbo / vinho / dourado (utilitário)
   Tipografia: Fraunces (display) + Inter (corpo) + IBM Plex Mono (números)
   ========================================================================== */

:root {
  /* Cores */
  --color-offwhite: #FAF6F0;
  --color-bege: #E6DCC8;
  --color-bege-soft: #F1EADA;
  --color-chumbo: #2B2824;
  --color-chumbo-soft: #57514A;
  --color-vinho: #6E2A3A;
  --color-vinho-dark: #4F1E2A;
  --color-vinho-light: #9C5567;
  --color-gold: #A9865A;
  --color-border: rgba(43, 40, 36, 0.12);
  --color-white: #FFFFFF;

  /* Tipografia */
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  /* Layout */
  --container-w: 1180px;
  --container-narrow-w: 760px;
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 24px;
  --shadow-card: 0 8px 30px rgba(43, 40, 36, 0.08);
  --shadow-lift: 0 20px 50px rgba(43, 40, 36, 0.16);
  --transition: 220ms ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-chumbo);
  background: var(--color-offwhite);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
input, select { font-family: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; margin: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

:focus-visible {
  outline: 2px solid var(--color-vinho);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-chumbo);
  color: var(--color-offwhite);
  padding: 12px 20px;
  z-index: 200;
  border-radius: 0 0 var(--radius-s) 0;
}
.skip-link:focus { left: 0; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: var(--container-narrow-w); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn-small { padding: 10px 20px; font-size: 0.85rem; }
.btn-block { width: 100%; justify-content: center; }

.btn-primary {
  background: var(--color-vinho);
  color: var(--color-offwhite);
  box-shadow: 0 6px 18px rgba(110, 42, 58, 0.28);
}
.btn-primary:hover { background: var(--color-vinho-dark); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: var(--color-chumbo);
  border-color: var(--color-border);
}
.btn-outline:hover { border-color: var(--color-chumbo); transform: translateY(-2px); }

.btn-ghost {
  background: transparent;
  color: var(--color-chumbo-soft);
}
.btn-ghost:hover { color: var(--color-vinho); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 240, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-chumbo);
  color: var(--color-offwhite);
  font-family: var(--font-display);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.15;
  color: var(--color-chumbo);
}
.logo-text small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-chumbo-soft);
  font-weight: 500;
}

.main-nav ul {
  display: flex;
  gap: 28px;
}
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-chumbo-soft);
  transition: color var(--transition);
  position: relative;
}
.main-nav a:hover { color: var(--color-vinho); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  color: var(--color-chumbo-soft);
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
  flex-shrink: 0;
}
.icon-btn:hover {
  color: var(--color-vinho);
  border-color: var(--color-vinho);
  transform: translateY(-2px);
}
.icon-btn-footer {
  margin-top: 16px;
  border-color: rgba(250, 246, 240, 0.25);
  color: rgba(250, 246, 240, 0.75);
}
.icon-btn-footer:hover {
  color: var(--color-offwhite);
  border-color: var(--color-offwhite);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-chumbo);
  transition: transform var(--transition), opacity var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  padding: 88px 0 72px;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-vinho);
  margin: 0 0 18px;
}
.hero-copy h1 {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: 22px;
}
.hero-copy h1 em {
  font-style: italic;
  color: var(--color-vinho);
}
.hero-sub {
  font-size: 1.08rem;
  color: var(--color-chumbo-soft);
  max-width: 46ch;
  margin-bottom: 32px;
}
.hero-cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}
.hero-highlights li {
  font-size: 0.85rem;
  color: var(--color-chumbo-soft);
  padding-left: 18px;
  position: relative;
}
.hero-highlights li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gold);
}

/* --- Receipt card (signature element) --- */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-blob {
  position: absolute;
  width: 340px;
  height: 340px;
  background: var(--color-bege);
  border-radius: 50%;
  filter: blur(0px);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  opacity: 0.9;
}
.receipt-card {
  position: relative;
  z-index: 1;
  width: min(360px, 100%);
  background: var(--color-white);
  border-radius: 4px;
  padding: 30px 26px 24px;
  box-shadow: var(--shadow-lift);
  transform: rotate(-3deg);
  transition: transform var(--transition);
}
.receipt-card:hover { transform: rotate(-1deg) translateY(-4px); }
.receipt-perf {
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 12px;
  background-image: radial-gradient(circle, var(--color-offwhite) 5px, transparent 5.5px);
  background-size: 22px 12px;
  background-position: 6px 0;
  background-repeat: repeat-x;
}
.receipt-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--color-border);
}
.receipt-label {
  font-family: var(--font-display);
  font-size: 1.05rem;
}
.receipt-stamp {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-vinho);
  border: 1px solid var(--color-vinho);
  border-radius: 999px;
  padding: 4px 10px;
  transform: rotate(4deg);
}
.receipt-client {
  font-size: 0.85rem;
  color: var(--color-chumbo-soft);
  margin: 0 0 16px;
}
.receipt-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.86rem;
  padding: 7px 0;
  color: var(--color-chumbo-soft);
}
.receipt-row strong {
  font-family: var(--font-mono);
  color: var(--color-chumbo);
  font-weight: 500;
}
.receipt-row.highlight strong { color: var(--color-vinho); }
.receipt-divider {
  border-top: 1px dashed var(--color-border);
  margin: 6px 0;
}
.receipt-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-size: 0.8rem;
  color: var(--color-chumbo-soft);
}
.receipt-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-gold);
  color: var(--color-white);
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ---------- Trust bar ---------- */
.trust-bar {
  background: var(--color-chumbo);
  color: var(--color-offwhite);
  padding: 30px 0;
}
.trust-bar-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
}
.trust-item {
  flex: 1 1 200px;
  font-size: 0.85rem;
  color: rgba(250, 246, 240, 0.72);
  display: flex;
  align-items: center;
  gap: 10px;
}
.trust-num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--color-offwhite);
}

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--color-bege-soft); }
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-vinho);
  margin: 0 0 12px;
}
.section-eyebrow-light { color: var(--color-gold); }
.section-title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  max-width: 20ch;
  margin-bottom: 16px;
}
.section-title-light { color: var(--color-offwhite); }
.section-lead {
  font-size: 1.05rem;
  color: var(--color-chumbo-soft);
  max-width: 60ch;
  margin-bottom: 48px;
}
.section-lead-light { color: rgba(250, 246, 240, 0.75); }

/* ---------- Grids & cards ---------- */
.grid { display: grid; gap: 24px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  padding: 30px 26px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.card-icon {
  font-size: 1.4rem;
  color: var(--color-vinho);
  margin-bottom: 16px;
}
.card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.card p { font-size: 0.92rem; color: var(--color-chumbo-soft); margin: 0; }

/* ---------- Plans ---------- */
.plan-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  padding: 32px 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.plan-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.plan-card h3 { font-size: 1.25rem; margin-bottom: 8px; }
.plan-desc { font-size: 0.88rem; color: var(--color-chumbo-soft); margin-bottom: 20px; }
.plan-features {
  margin-bottom: 28px;
  flex-grow: 1;
}
.plan-features li {
  font-size: 0.86rem;
  padding: 7px 0 7px 22px;
  position: relative;
  color: var(--color-chumbo-soft);
  border-top: 1px solid var(--color-border);
}
.plan-features li:first-child { border-top: none; }
.plan-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-gold);
}
.plan-highlight {
  background: var(--color-chumbo);
  border-color: var(--color-chumbo);
}
.plan-highlight h3,
.plan-highlight .plan-desc,
.plan-highlight .plan-features li { color: var(--color-offwhite); }
.plan-highlight .plan-features li { border-top-color: rgba(250, 246, 240, 0.15); }
.plan-tag {
  position: absolute;
  top: -13px;
  left: 26px;
  background: var(--color-vinho);
  color: var(--color-offwhite);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 5px 14px;
  border-radius: 999px;
  font-weight: 600;
}

/* ---------- Como funciona ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step {
  border-top: 2px solid var(--color-chumbo);
  padding-top: 20px;
}
.step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-vinho);
  margin-bottom: 10px;
}
.step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.step p { font-size: 0.9rem; color: var(--color-chumbo-soft); margin: 0; }

/* ---------- Accordion ---------- */
.accordion-item {
  border-bottom: 1px solid var(--color-border);
}
.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  padding: 22px 4px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--color-chumbo);
  text-align: left;
}
.accordion-icon {
  font-family: var(--font-body);
  font-size: 1.3rem;
  color: var(--color-vinho);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}
.accordion-trigger[aria-expanded="true"] .accordion-icon { transform: rotate(45deg); }
.accordion-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition);
}
.accordion-panel > * { padding-bottom: 24px; }
.accordion-panel p { color: var(--color-chumbo-soft); font-size: 0.95rem; margin: 0; }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-list li {
  font-size: 0.82rem;
  background: var(--color-bege-soft);
  border: 1px solid var(--color-border);
  padding: 7px 14px;
  border-radius: 999px;
  color: var(--color-chumbo-soft);
}
.section-alt .tag-list li { background: var(--color-white); }

.services-cta {
  margin-top: 40px;
  font-size: 0.95rem;
  color: var(--color-chumbo-soft);
}
.services-cta a {
  color: var(--color-vinho);
  font-weight: 600;
  text-decoration: underline;
}

/* ---------- Delivery block ---------- */
.delivery-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}
.check-list { margin: 28px 0 32px; }
.check-list li {
  font-size: 0.94rem;
  padding: 9px 0 9px 26px;
  position: relative;
  border-top: 1px solid var(--color-border);
  color: var(--color-chumbo-soft);
}
.check-list li:first-child { border-top: none; }
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-vinho);
  font-weight: 600;
}

.calc-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-l);
  padding: 32px;
  box-shadow: var(--shadow-card);
}
.calc-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.calc-sub { font-size: 0.88rem; color: var(--color-chumbo-soft); margin-bottom: 22px; }
.calc-field {
  display: block;
  font-size: 0.82rem;
  color: var(--color-chumbo-soft);
  margin-bottom: 16px;
}
.calc-field input,
.calc-field select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 12px 14px;
  border-radius: var(--radius-s);
  border: 1px solid var(--color-border);
  background: var(--color-offwhite);
  font-size: 0.95rem;
  color: var(--color-chumbo);
}
.calc-field input:focus,
.calc-field select:focus { outline: 2px solid var(--color-vinho); outline-offset: 1px; }
.calc-result {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed var(--color-border);
}
.calc-disclaimer {
  font-size: 0.74rem;
  color: var(--color-chumbo-soft);
  margin-top: 18px;
  opacity: 0.85;
}

/* ---------- Avaliações Google ---------- */
.review-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  padding: 28px 24px;
}
.review-stars {
  color: var(--color-gold);
  letter-spacing: 2px;
  margin-bottom: 14px;
  font-size: 0.95rem;
}
.review-card p {
  font-size: 0.94rem;
  color: var(--color-chumbo-soft);
  margin: 0 0 16px;
}
.review-author {
  font-size: 0.8rem;
  color: var(--color-chumbo-soft);
  opacity: 0.75;
}
.reviews-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}

/* ---------- Testimonials ---------- */
.testimonial {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  padding: 30px 26px;
  margin: 0;
}
.testimonial p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.5;
  margin: 0 0 18px;
}
.testimonial footer {
  font-size: 0.82rem;
  color: var(--color-chumbo-soft);
}

/* ---------- CTA final ---------- */
.cta-final {
  background: var(--color-chumbo);
}
.cta-final-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.lead-form {
  background: var(--color-offwhite);
  border-radius: var(--radius-l);
  padding: 32px;
  box-shadow: var(--shadow-lift);
}
.field {
  display: block;
  font-size: 0.82rem;
  color: var(--color-chumbo-soft);
  margin-bottom: 18px;
}
.field input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 13px 14px;
  border-radius: var(--radius-s);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  font-size: 0.95rem;
}
.field input:focus { outline: 2px solid var(--color-vinho); outline-offset: 1px; }
.form-note {
  font-size: 0.76rem;
  color: var(--color-chumbo-soft);
  text-align: center;
  margin: 14px 0 0;
}
.form-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  font-size: 0.75rem;
  color: var(--color-chumbo-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-divider::before,
.form-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* ---------- Contato ---------- */
.contact-card { text-align: left; }
.contact-card p { margin-bottom: 20px; }
.contact-hours {
  margin-top: 40px;
  font-size: 0.9rem;
  color: var(--color-chumbo-soft);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-chumbo);
  color: rgba(250, 246, 240, 0.75);
  padding-top: 72px;
  border-top: 1px solid rgba(250, 246, 240, 0.08);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(250, 246, 240, 0.1);
}
.footer-brand p { margin: 14px 0 0; color: var(--color-offwhite); font-family: var(--font-display); }
.footer-desc {
  font-family: var(--font-body) !important;
  color: rgba(250, 246, 240, 0.65) !important;
  font-size: 0.85rem;
  margin-top: 14px !important;
  max-width: 32ch;
}
.logo-mark-footer { background: var(--color-vinho); }
.footer-col h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-gold);
  margin-bottom: 16px;
  font-family: var(--font-body);
  font-weight: 600;
}
.footer-col li { margin-bottom: 10px; font-size: 0.88rem; }
.footer-col a:hover { color: var(--color-offwhite); }
.footer-bottom {
  padding: 24px;
  font-size: 0.78rem;
  text-align: center;
  color: rgba(250, 246, 240, 0.5);
}

/* ---------- WhatsApp flutuante ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px rgba(37, 211, 102, 0.4);
  z-index: 90;
  transition: transform var(--transition);
}
.whatsapp-float:hover { transform: scale(1.08); }

.whatsapp-float-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid #25D366;
  animation: whatsapp-pulse 2.8s ease-out infinite;
  pointer-events: none;
}
@keyframes whatsapp-pulse {
  0% { transform: scale(1); opacity: 0.55; }
  100% { transform: scale(1.55); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .whatsapp-float-ring { animation: none; display: none; }
}

/* ---------- Scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1020px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .hero-inner,
  .delivery-inner,
  .cta-final-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; margin-bottom: 12px; }
  .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .header-actions .btn-ghost { display: none; }

  .site-header.nav-open .main-nav {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-offwhite);
    border-bottom: 1px solid var(--color-border);
    padding: 8px 24px 20px;
  }
  .site-header.nav-open .main-nav ul {
    flex-direction: column;
    gap: 4px;
  }
  .site-header.nav-open .main-nav a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .hero { padding: 48px 0 56px; }
}