:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-alt: #f1f5f9;
  --text: #0f172a;
  --muted: #64748b;
  --border: rgba(15, 23, 42, 0.1);
  --line: rgba(15, 23, 42, 0.07);
  --primary: #16a34a;
  --primary-mid: #22c55e;
  --primary-deep: #15803d;
  --primary-soft: rgba(22, 163, 74, 0.08);
  --dark: #0f172a;
  --dark-soft: #1e293b;
  --shadow-sm: 0 1px 4px rgba(15, 23, 42, 0.06);
  --shadow: 0 4px 20px rgba(15, 23, 42, 0.07);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.1);
  --radius-xl: 20px;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --container: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Manrope", sans-serif;
  font-size: 0.9375rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

button, input, select { font: inherit; }

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

/* ── Header ─────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
}

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

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--primary-soft);
  border: 1px solid rgba(22, 163, 74, 0.18);
}

.brand-mark svg {
  width: 22px;
  fill: var(--primary);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-copy strong,
.section-head h2,
.hero-copy h1,
.summary-head h3,
.block-title h3,
.infra-copy h2 {
  font-family: "Sora", sans-serif;
}

.brand-copy strong { font-size: 0.9rem; font-weight: 700; }
.brand-copy small  { color: var(--muted); font-size: 0.7rem; }

.nav-links, .nav-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 6px 12px;
  border-radius: var(--radius-md);
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  transition: color 0.15s, background 0.15s;
}

.nav-links a:hover { color: var(--text); background: var(--surface-alt); }

.nav-link-ghost {
  padding: 6px 14px;
  border-radius: var(--radius-md);
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  transition: color 0.15s;
}

.nav-link-ghost:hover { color: var(--text); }

.section-link {
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
  transition: opacity 0.15s;
}

.section-link:hover { opacity: 0.75; }

.footer-links a {
  color: var(--muted);
  font-size: 0.85rem;
  transition: color 0.15s;
}

.footer-links a:hover { color: var(--text); }

/* ── Buttons ─────────────────────────────── */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.button:hover { opacity: 0.9; transform: translateY(-1px); }
.button:active { transform: translateY(0); }

.button-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.25);
}

.button-primary:hover {
  background: var(--primary-deep);
  box-shadow: 0 4px 16px rgba(22, 163, 74, 0.3);
  opacity: 1;
}

.button-secondary {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

.button-secondary:hover {
  border-color: rgba(22, 163, 74, 0.35);
  opacity: 1;
}

.button-dark {
  background: var(--dark);
  color: #fff;
}

.button-full { width: 100%; }

/* ── Eyebrow ─────────────────────────────── */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--primary-soft);
  border: 1px solid rgba(22, 163, 74, 0.15);
  color: var(--primary-deep);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Hero ────────────────────────────────── */

.hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 0.88fr;
  gap: 48px;
  align-items: center;
}

.hero-copy .eyebrow  { animation: fadeUp 0.4s 0.05s both ease; }
.hero-copy h1        { animation: fadeUp 0.4s 0.12s both ease; }
.hero-copy .hero-text    { animation: fadeUp 0.4s 0.19s both ease; }
.hero-copy .hero-actions { animation: fadeUp 0.4s 0.26s both ease; }
.hero-copy .hero-trust   { animation: fadeUp 0.4s 0.33s both ease; }
.hero-stage              { animation: fadeUp 0.5s 0.15s both ease; }

.hero-copy h1 {
  margin: 16px 0 14px;
  font-size: clamp(1.7rem, 2.6vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.hero-text,
.block-title p,
.infra-copy p,
.faq-grid p,
.plan-card p,
.site-footer p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.9rem;
}

.hero-text { max-width: 540px; }

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.hero-trust {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.hero-trust div {
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.hero-trust strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  font-family: "Sora", sans-serif;
  color: var(--text);
}

.hero-trust span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.78rem;
}

/* ── Hero Stage ──────────────────────────── */

.hero-stage {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero-card {
  position: relative;
  width: 100%;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  animation: cardFloat 7s ease-in-out infinite;
}

.card-float { animation: cardFloat 7s ease-in-out infinite; }

.mini-label {
  color: var(--primary);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-price-line {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
}

.hero-price-line strong { font-size: 0.95rem; font-weight: 700; }
.hero-price-line p { margin: 6px 0 0; color: var(--muted); font-size: 0.82rem; }

.price-block { min-width: 90px; text-align: right; }

.price-block span,
.meter-label,
.meter-value,
.stage-top span,
.stage-footer span,
.summary-list span,
.summary-total span {
  color: var(--muted);
  font-size: 0.76rem;
}

.price-block strong {
  display: block;
  font-size: 1.5rem;
  line-height: 1;
  font-weight: 700;
  font-family: "Sora", sans-serif;
}

.price-block small { color: var(--muted); font-size: 0.78rem; }

.hero-meter { margin-top: 18px; }

.meter-track {
  margin: 8px 0 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--surface-alt);
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary-mid), var(--primary));
  width: 0;
  animation: meterFill 1.6s 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.hero-bullets {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.hero-bullets li, .plan-card li {
  position: relative;
  padding-left: 16px;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero-bullets li::before, .plan-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
}

/* ── Stage Panel ─────────────────────────── */

.stage-panel {
  position: relative;
  width: 100%;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--dark);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.04);
  box-shadow: var(--shadow);
}

.stage-top, .stage-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.stage-top strong, .stage-footer strong {
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.stage-top span, .stage-footer span { color: rgba(255,255,255,0.5); }

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary-mid);
  flex-shrink: 0;
  animation: pulseDot 2.4s ease-in-out infinite;
}

.node-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0;
}

.node-grid article {
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  transition: background 0.2s;
}

.node-grid article:hover { background: rgba(255,255,255,0.07); }

.node-grid span {
  display: inline-flex;
  min-width: 30px;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: rgba(34, 197, 94, 0.1);
  color: #86efac;
  font-weight: 700;
  font-size: 0.78rem;
}

.node-grid strong { display: block; margin-top: 10px; font-size: 0.82rem; }
.node-grid small  { display: block; margin-top: 4px; color: rgba(255,255,255,0.5); font-size: 0.75rem; }

.stage-footer { margin-top: 0; }

/* ── Offers Strip ────────────────────────── */

.offers-strip {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 0;
  border-radius: 0;
}

.offer-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 0;
  align-items: center;
}

.offer-pills span {
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  transition: border-color 0.15s, color 0.15s;
}

.offer-pills span:hover {
  border-color: rgba(22, 163, 74, 0.3);
  color: var(--primary-deep);
}

/* ── Sections ────────────────────────────── */

.plans-section, .config-section, .infra-section, .faq-section {
  padding: 72px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.section-head.slim { margin-bottom: 24px; }

.section-head h2, .infra-copy h2 {
  margin: 10px 0 0;
  font-size: clamp(1.2rem, 2vw, 1.7rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
  font-weight: 700;
}

/* ── Plans ───────────────────────────────── */

.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.plan-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
}

.plan-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.plan-card.highlighted {
  border-color: rgba(22, 163, 74, 0.3);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.06), var(--shadow);
}

.plan-card.highlighted:hover {
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.1), var(--shadow-lg);
}

.badge {
  display: inline-flex;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.plan-card h3 {
  margin: 14px 0 6px;
  font-size: 1rem;
  font-weight: 700;
  font-family: "Sora", sans-serif;
}

.plan-price {
  margin: 16px 0;
  font-size: 1.7rem;
  font-weight: 700;
  font-family: "Sora", sans-serif;
  letter-spacing: -0.02em;
}

.plan-price small {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
}

.plan-card ul {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

/* ── Configurator ────────────────────────── */

.config-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}

.config-panel, .summary-sticky {
  border-radius: var(--radius-xl);
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.config-block + .config-block { margin-top: 24px; }

.block-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.block-title h3 {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
}

.block-title p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.option-grid { display: grid; gap: 10px; }
.option-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.option-card, .chip, .billing-card, .plan-row {
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.option-card:hover, .chip:hover, .billing-card:hover, .plan-row:hover {
  border-color: rgba(22, 163, 74, 0.4);
}

.option-card.active, .chip.active, .billing-card.active, .plan-row.active {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.1);
  background: rgba(22, 163, 74, 0.02);
}

.option-card {
  padding: 14px;
  border-radius: var(--radius-lg);
  text-align: left;
}

.option-card strong, .option-card span, .option-card small { display: block; }
.option-card strong { font-size: 0.88rem; font-weight: 700; }
.option-card span { margin: 4px 0 3px; color: var(--muted); font-size: 0.8rem; }
.option-card small { color: var(--primary-deep); font-weight: 700; font-size: 0.78rem; }

.plan-table { display: grid; gap: 8px; }

.plan-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  border-radius: var(--radius-lg);
  text-align: left;
}

.plan-row span { color: var(--muted); font-weight: 600; font-size: 0.83rem; }
.plan-row strong { text-align: right; font-size: 0.88rem; }

.chip-row, .billing-grid { display: flex; gap: 10px; flex-wrap: wrap; }

.chip {
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.82rem;
}

.billing-card {
  min-width: 130px;
  min-height: 76px;
  border-radius: var(--radius-lg);
  padding: 14px;
  text-align: left;
}

.billing-card strong, .billing-card span { display: block; }
.billing-card strong { font-size: 0.85rem; font-weight: 700; }
.billing-card span { margin-top: 6px; color: var(--muted); font-weight: 500; font-size: 0.78rem; }

.config-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

/* ── Summary ─────────────────────────────── */

.summary-sticky {
  position: sticky;
  top: 80px;
}

.summary-head h3 {
  margin: 10px 0 0;
  font-size: 0.95rem;
  font-weight: 700;
}

.summary-list {
  display: grid;
  gap: 0;
  margin-top: 18px;
}

.summary-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.82rem;
}

.summary-list strong { text-align: right; font-weight: 600; }

.summary-total {
  margin: 16px 0 18px;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--primary-soft);
  border: 1px solid rgba(22, 163, 74, 0.15);
}

.summary-total.flash { animation: totalFlash 0.45s ease; }

.summary-total strong {
  display: block;
  margin-top: 6px;
  font-size: 1.4rem;
  font-family: "Sora", sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.summary-total small { display: block; margin-top: 6px; color: var(--muted); font-size: 0.75rem; }

/* ── Infra ───────────────────────────────── */

.infra-section { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.infra-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.infra-copy h2 {
  max-width: 380px;
}

.infra-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.infra-cards article, .faq-grid article {
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
}

.infra-cards article:hover, .faq-grid article:hover {
  box-shadow: var(--shadow);
  border-color: rgba(22, 163, 74, 0.2);
  transform: translateY(-2px);
}

.infra-cards strong, .faq-grid strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  font-family: "Sora", sans-serif;
}

/* ── FAQ ─────────────────────────────────── */

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

/* ── Footer ──────────────────────────────── */

.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.footer-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
}

.footer-shell strong {
  font-size: 0.88rem;
  font-weight: 700;
  font-family: "Sora", sans-serif;
}

.footer-shell p { margin: 4px 0 0; font-size: 0.8rem; }

.footer-links { display: flex; gap: 4px; flex-wrap: wrap; }

/* ── Scroll Reveal ───────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.revealed { opacity: 1; transform: translateY(0); }

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

/* ── Animations ──────────────────────────── */

@keyframes cardFloat {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

@keyframes meterFill {
  to { width: 84%; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.45); }
  60%       { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

@keyframes totalFlash {
  0%   { background: var(--primary-soft); }
  45%  { background: rgba(22, 163, 74, 0.18); }
  100% { background: var(--primary-soft); }
}

/* ── Mobile Menu ─────────────────────────── */

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  flex-shrink: 0;
  flex-direction: column;
  gap: 0;
  transition: background 0.15s;
}

.menu-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle span + span { margin-top: 4px; }

.menu-toggle.open span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 10px 16px 14px;
  border-top: 1px solid var(--line);
  background: var(--bg);
}

.mobile-nav a {
  padding: 10px 12px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  transition: background 0.12s;
}

.mobile-nav a:hover { background: var(--surface-alt); }
.mobile-nav.open { display: flex; }

/* ── Focus ───────────────────────────────── */

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ── Responsive 1080px ───────────────────── */

@media (max-width: 1080px) {
  .hero-grid, .config-grid, .infra-grid, .plans-grid, .faq-grid {
    grid-template-columns: 1fr;
  }

  .summary-sticky { position: static; }
  .infra-copy h2 { max-width: none; }
}

/* ── Responsive 760px ────────────────────── */

@media (max-width: 760px) {
  .nav-shell { min-height: 58px; gap: 10px; }
  .nav-links  { display: none; }
  .menu-toggle { display: flex; }
  .nav-actions { gap: 8px; }

  .hero { padding: 36px 0 32px; }

  .hero-copy h1 { font-size: clamp(1.5rem, 6vw, 2rem); }

  .hero-trust {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-top: 20px;
    padding-top: 20px;
  }

  .hero-trust div { padding: 10px 12px; }

  .card-float { animation: none; }

  .hero-price-line { flex-direction: column; gap: 10px; }
  .price-block { text-align: left; }

  .stage-top, .stage-footer { flex-direction: column; gap: 6px; }

  .section-head, .block-title, .footer-shell { flex-direction: column; }

  .option-grid.two, .infra-cards { grid-template-columns: 1fr; }

  .plan-row { grid-template-columns: 1fr 1fr; }
  .plan-row strong { text-align: left; }

  .billing-grid { flex-direction: column; }
  .billing-card, .chip { width: 100%; }

  .hero-actions, .config-actions { flex-direction: column; }
  .hero-actions .button, .config-actions .button { width: 100%; justify-content: center; }

  .plans-section, .config-section, .infra-section, .faq-section { padding: 52px 0; }

  .faq-grid { grid-template-columns: 1fr; }
  .plans-grid { gap: 12px; }
}

/* ── Responsive 420px ────────────────────── */

@media (max-width: 420px) {
  .hero-trust { grid-template-columns: 1fr; }
  .node-grid  { grid-template-columns: 1fr; }
  .container  { width: calc(100% - 28px); }
  .config-panel, .summary-sticky { padding: 18px; }
}