/* ── Reset & Variables ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Brand — identical to app tokens */
  --primary:        #2D6A4F;
  --primary-dark:   #1B4332;
  --primary-light:  #52B788;
  --primary-pale:   #D8F3DC;
  --accent:         #F4A261;
  --accent-dark:    #E07B3A;
  --danger:         #C0392B;
  --danger-light:   #FADBD8;
  --success:        #27AE60;
  --success-light:  #D5F5E3;
  --warning-light:  #FDEBD0;
  --bg:             #F4F1EC;
  --surface:        #FFFFFF;
  --border:         #D5CFC8;
  --text:           #1C1C1E;
  --text-muted:     #6B7280;

  /* Layout */
  --radius:         8px;
  --radius-lg:      12px;
  --shadow:         0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md:      0 4px 6px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.08);
  --shadow-lg:      0 10px 25px rgba(0,0,0,.12), 0 4px 10px rgba(0,0,0,.08);
  --transition:     .18s ease;

  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  font-size: 16px;
  color: var(--text);
  line-height: 1.6;
}

body { background: var(--bg); }
a    { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img  { display: block; max-width: 100%; }

/* ── Container ─────────────────────────────────────────────────────────────── */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-sm {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navigation ────────────────────────────────────────────────────────────── */
.site-nav {
  background: var(--primary-dark);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}
.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-logo img {
  height: 36px;
  width: auto;
  background: #fff;
  border-radius: 6px;
  padding: 4px 8px;
  object-fit: contain;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-links a {
  color: rgba(255,255,255,.85);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
}
.nav-links a:hover,
.nav-links a.active { background: rgba(255,255,255,.12); color: #fff; text-decoration: none; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  padding: 4px 8px;
  margin-left: auto;
}
.nav-mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--primary-dark);
  padding: 12px 24px 20px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a {
  color: rgba(255,255,255,.85);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  text-decoration: none;
}
.nav-mobile-menu a:last-child { border-bottom: none; }

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary   { background: var(--primary);   color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }

.btn-accent    { background: var(--accent);    color: #fff; }
.btn-accent:hover { background: var(--accent-dark); }

.btn-outline   { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.6); }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }

.btn-outline-dark { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline-dark:hover { background: var(--primary-pale); }

.btn-ghost-white { background: transparent; color: rgba(255,255,255,.85); border: 1px solid rgba(255,255,255,.35); }
.btn-ghost-white:hover { background: rgba(255,255,255,.1); color: #fff; }

.btn-sm  { padding: 6px 14px; font-size: 13px; }
.btn-lg  { padding: 14px 28px; font-size: 16px; border-radius: var(--radius-lg); }
.btn-xl  { padding: 16px 36px; font-size: 17px; border-radius: var(--radius-lg); }
.btn-block { width: 100%; }

/* ── Hero ──────────────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff;
  padding: 96px 0 80px;
  text-align: center;
}
.hero-eyebrow {
  display: inline-block;
  background: rgba(255,255,255,.15);
  color: rgba(255,255,255,.9);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 58px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: clamp(16px, 2vw, 19px);
  color: rgba(255,255,255,.82);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.65;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ── Page hero (inner pages) ───────────────────────────────────────────────── */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff;
  padding: 56px 0 52px;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.page-hero p {
  font-size: 17px;
  color: rgba(255,255,255,.82);
  max-width: 540px;
  margin: 0 auto;
}

/* ── Sections ──────────────────────────────────────────────────────────────── */
.section        { padding: 80px 0; }
.section-sm     { padding: 56px 0; }
.section-alt    { background: var(--surface); }
.section-dark   { background: var(--primary-dark); color: #fff; }
.section-pale   { background: var(--primary-pale); }

.section-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 10px;
}
.section-label-white { color: rgba(255,255,255,.65); }

.section-title {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 800;
  letter-spacing: -0.8px;
  line-height: 1.15;
  margin-bottom: 14px;
}
.section-sub {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.65;
}
.section-sub-white { color: rgba(255,255,255,.75); }
.section-center { text-align: center; }
.section-center .section-sub { margin: 0 auto; }

/* ── Feature grid ──────────────────────────────────────────────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-pale);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Highlight triptych (home page 3-up) ───────────────────────────────────── */
.triptych {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 48px;
}
.triptych-item {
  background: var(--surface);
  padding: 36px 32px;
  text-align: center;
}
.triptych-num {
  font-size: 40px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}
.triptych-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.triptych-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Steps (how it works) ──────────────────────────────────────────────────── */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 48px;
  position: relative;
}
.step { text-align: center; }
.step-num {
  width: 52px;
  height: 52px;
  background: var(--primary);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}
.step h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Pricing ───────────────────────────────────────────────────────────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 48px;
  align-items: start;
}
.pricing-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  transition: box-shadow var(--transition);
}
.pricing-card:hover { box-shadow: var(--shadow-lg); }
.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(45,106,79,.12);
}
.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 14px;
  border-radius: 20px;
  white-space: nowrap;
}
.pricing-name {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.pricing-price {
  font-size: 44px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 4px;
}
.pricing-price sup { font-size: 22px; letter-spacing: 0; vertical-align: top; margin-top: 8px; font-weight: 700; }
.pricing-period {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.pricing-head-count {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
}
.pricing-divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 20px;
}
.pricing-features {
  list-style: none;
  margin-bottom: 28px;
}
.pricing-features li {
  font-size: 14px;
  color: var(--text);
  padding: 5px 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.pricing-features li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── Pricing calculator ────────────────────────────────────────────────────── */
.calc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  max-width: 540px;
  margin: 48px auto 0;
  text-align: center;
  box-shadow: var(--shadow-md);
}
.calc-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.calc-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 24px; }
.calc-input-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.calc-input-row label { font-size: 14px; font-weight: 600; }
.calc-input {
  width: 110px;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 18px;
  font-weight: 700;
  text-align: center;
  color: var(--text);
  transition: border-color var(--transition);
}
.calc-input:focus { outline: none; border-color: var(--primary); }
.calc-result {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -1px;
  margin-bottom: 6px;
}
.calc-result-label { font-size: 14px; color: var(--text-muted); margin-bottom: 24px; }

/* ── FAQ ───────────────────────────────────────────────────────────────────── */
.faq-list { margin-top: 40px; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 18px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-question span.icon {
  font-size: 20px;
  color: var(--primary);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-question[aria-expanded="true"] span.icon { transform: rotate(45deg); }
.faq-answer {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  padding-bottom: 18px;
  display: none;
}
.faq-answer.open { display: block; }

/* ── CTA Banner ────────────────────────────────────────────────────────────── */
.cta-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff;
  text-align: center;
  padding: 72px 24px;
}
.cta-banner h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 14px;
}
.cta-banner p {
  font-size: 17px;
  color: rgba(255,255,255,.8);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.cta-banner .btn-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ── Social proof / testimonial ────────────────────────────────────────────── */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
}
.testimonial-quote {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-quote::before { content: '\201C'; }
.testimonial-quote::after  { content: '\201D'; }
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.testimonial-name { font-size: 14px; font-weight: 700; }
.testimonial-role { font-size: 12px; color: var(--text-muted); }

/* ── Forms ─────────────────────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 16px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text); }
.form-control {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--text);
  background: var(--surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  font-family: inherit;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(45,106,79,.15);
}
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 120px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
}
.alert-error   { background: var(--danger-light);  color: #922B21; border: 1px solid #E9B4B0; }
.alert-success { background: var(--success-light); color: #145A32; border: 1px solid #A9DFBF; }

/* ── Signup page layout ────────────────────────────────────────────────────── */
.signup-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: start;
  padding: 56px 0 80px;
}
.signup-form-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 40px;
}
.signup-form-card h2 { font-size: 24px; font-weight: 800; margin-bottom: 6px; }
.signup-form-card > p { font-size: 14px; color: var(--text-muted); margin-bottom: 28px; }

.signup-summary {
  background: var(--primary-dark);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: sticky;
  top: 88px;
}
.signup-summary h3 { font-size: 18px; font-weight: 700; margin-bottom: 20px; }
.summary-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 14px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.8);
}
.summary-line:last-of-type { border-bottom: none; }
.summary-line strong { color: #fff; }
.summary-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 16px;
  font-weight: 700;
  padding: 14px 0 0;
  margin-top: 8px;
  border-top: 1px solid rgba(255,255,255,.2);
}
.summary-total-price {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
}
.summary-note {
  font-size: 12px;
  color: rgba(255,255,255,.55);
  margin-top: 16px;
  line-height: 1.5;
}
.stripe-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 12px;
  color: rgba(255,255,255,.55);
}

/* ── Success page ──────────────────────────────────────────────────────────── */
.success-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}
.success-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 56px 48px;
  max-width: 560px;
  width: 100%;
  text-align: center;
}
.success-icon { font-size: 64px; line-height: 1; margin-bottom: 20px; }
.success-card h1 { font-size: 32px; font-weight: 800; margin-bottom: 12px; color: var(--primary-dark); }
.success-card > p { font-size: 16px; color: var(--text-muted); margin-bottom: 36px; line-height: 1.65; }
.next-steps { text-align: left; margin-bottom: 32px; }
.next-steps h3 { font-size: 15px; font-weight: 700; margin-bottom: 14px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); }
.next-step-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.next-step-item:last-child { border-bottom: none; }
.next-step-num {
  width: 26px;
  height: 26px;
  background: var(--primary-pale);
  color: var(--primary-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

/* ── Contact ───────────────────────────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
  padding: 64px 0 80px;
}
.contact-form-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 40px;
}
.contact-form-card h2 { font-size: 24px; font-weight: 700; margin-bottom: 6px; }
.contact-form-card > p { font-size: 14px; color: var(--text-muted); margin-bottom: 28px; }
.contact-sidebar h3 { font-size: 18px; font-weight: 700; margin-bottom: 20px; }
.contact-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 20px;
}
.contact-item-icon {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 1px;
}
.contact-item-text { font-size: 14px; }
.contact-item-text strong { display: block; font-weight: 600; margin-bottom: 2px; }
.contact-item-text span { color: var(--text-muted); }

/* ── Footer ────────────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.7);
  padding: 48px 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 200px 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand img {
  height: 32px;
  width: auto;
  background: #fff;
  border-radius: 6px;
  padding: 4px 8px;
  object-fit: contain;
  margin-bottom: 14px;
}
.footer-brand p { font-size: 13px; line-height: 1.6; color: rgba(255,255,255,.55); }
.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,.9);
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,.6);
  padding: 4px 0;
  transition: color var(--transition);
  text-decoration: none;
}
.footer-col a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: rgba(255,255,255,.4);
}

/* ── Utility ───────────────────────────────────────────────────────────────── */
.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-0  { margin-bottom: 0; }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary); }

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .signup-layout      { grid-template-columns: 1fr; }
  .signup-summary     { position: static; order: -1; }
  .contact-layout     { grid-template-columns: 1fr; }
  .footer-inner       { grid-template-columns: 1fr 1fr; }
  .triptych           { grid-template-columns: 1fr; }
  .steps              { grid-template-columns: 1fr; }
  .pricing-grid       { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links          { display: none; }
  .nav-actions        { display: none; }
  .nav-hamburger      { display: block; }
  .hero               { padding: 64px 0 56px; }
  .section            { padding: 56px 0; }
  .section-sm         { padding: 40px 0; }
  .feature-grid       { grid-template-columns: 1fr; }
  .pricing-grid       { grid-template-columns: 1fr; }
  .form-row           { grid-template-columns: 1fr; }
  .footer-inner       { grid-template-columns: 1fr; }
  .signup-form-card   { padding: 28px 20px; }
  .success-card       { padding: 36px 24px; }
  .calc-card          { padding: 28px 20px; }
}