/* NibbNest™ — Premium Smart Pet Ecosystem */

:root {
  --primary: #0F172A;
  --accent: #14B8A6;
  --highlight: #22D3EE;
  --bg: #F8FAFC;
  --text: #111827;
  --text-muted: #64748B;
  --white: #FFFFFF;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 12px 40px rgba(15, 23, 42, 0.12);
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --header-h: 112px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  text-align: center;
  overflow-x: hidden;
}

main {
  width: 100%;
  margin-inline: auto;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  margin-inline: auto;
}

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

ul {
  list-style: none;
}

.container {
  width: min(1200px, 100% - 48px);
  max-width: 1200px;
  margin-inline: auto;
  margin-left: auto;
  margin-right: auto;
}

.tm {
  font-size: 0.65em;
  vertical-align: super;
  opacity: 0.7;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--primary);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.25rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

.eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-lede {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-top: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn:hover {
  transform: scale(1.04);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.2);
}

.btn-primary:hover {
  background: #1E293B;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.25);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 1.5px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--primary);
}

.btn-light {
  background: var(--white);
  color: var(--primary);
}

.btn-block {
  width: 100%;
}

.btn.is-loading {
  opacity: 0.75;
  cursor: wait;
  transform: none;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.site-header.is-scrolled {
  background: rgba(248, 250, 252, 0.88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 rgba(226, 232, 240, 0.8);
}

.header-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px 12px;
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 28px;
}

.nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}

.nav a:hover {
  color: var(--primary);
}

.nav-cta {
  padding: 10px 20px !important;
  background: var(--primary) !important;
  color: var(--white) !important;
  border-radius: 999px;
}

.nav-cta:hover {
  background: #1E293B !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 auto 0;
  z-index: 99;
  background: var(--white);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  box-shadow: var(--shadow);
  border-bottom: 1px solid var(--border);
}

.mobile-nav a {
  font-weight: 500;
  padding: 8px 0;
}

.mobile-nav[hidden] {
  display: none;
}

/* Hero */
.hero {
  padding: calc(var(--header-h) + 48px) 0 80px;
  background: linear-gradient(180deg, var(--white) 0%, var(--bg) 100%);
  overflow: hidden;
}

.hero-content {
  width: min(900px, 100% - 48px);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 48px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin: 20px 0 32px;
  max-width: 560px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.hero-visual {
  position: relative;
  width: 100%;
  max-width: 720px;
}

.hero-visual img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  margin-inline: auto;
}

/* Sections */
.section {
  padding: 100px 0;
  width: 100%;
}

.section > .container {
  margin-left: auto;
  margin-right: auto;
}

.section-head {
  text-align: center;
  margin-bottom: 64px;
}

.section-head .section-lede {
  margin-inline: auto;
}

/* Ecosystem Flow */
.ecosystem {
  background: var(--white);
}

.ecosystem-flow {
  max-width: 720px;
  margin-inline: auto;
}

.flow-node {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
}

.flow-node:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.flow-icon {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
}

.flow-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.flow-body > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 480px;
}

.flow-body img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  flex-shrink: 0;
  margin-inline: auto;
}

.flow-body-app .app-screenshot {
  width: 100px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  margin-inline: auto;
}

.flow-role {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  margin: 4px 0 8px;
}

.flow-body p:last-child {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.flow-body-care {
  align-items: center;
}

.care-badge {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--highlight));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 700;
  flex-shrink: 0;
  margin-inline: auto;
}

.care-icon {
  font-size: 1.25rem;
}

.flow-connector {
  width: 2px;
  height: 32px;
  background: linear-gradient(180deg, var(--accent), var(--highlight));
  margin: 8px auto;
  border-radius: 2px;
}

/* Product Cards */
.product-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  max-width: 1200px;
  margin-inline: auto;
}

.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  flex: 0 1 340px;
  width: 100%;
  max-width: 360px;
  margin-inline: auto;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.product-card-image {
  aspect-ratio: 4/3;
  background: linear-gradient(180deg, #F1F5F9 0%, var(--white) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow: hidden;
}

.product-card-image img {
  max-height: 220px;
  width: auto;
  object-fit: contain;
  margin-inline: auto;
  transition: transform 0.4s ease;
}

.product-card:hover .product-card-image img {
  transform: scale(1.05);
}

.product-card-image-dark {
  background: linear-gradient(180deg, #1E293B 0%, var(--primary) 100%);
}

.product-card-image-care {
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.15), rgba(34, 211, 238, 0.15));
}

.care-visual {
  text-align: center;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.care-visual small {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 4px;
}

.product-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.product-tagline {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 4px 0 12px;
}

.product-price {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
}

.price-period {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  flex: 1;
  justify-content: center;
}

.feature-tags li {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 6px 12px;
  background: var(--bg);
  border-radius: 999px;
  color: var(--text-muted);
}

/* Bundles */
.bundles {
  background: var(--white);
}

.bundle-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  max-width: 1200px;
  margin-inline: auto;
}

.bundle-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  flex: 0 1 340px;
  width: 100%;
  max-width: 360px;
  margin-inline: auto;
}

.bundle-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.bundle-featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow);
}

.bundle-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 6px 12px;
  background: var(--accent);
  color: var(--white);
  border-radius: 999px;
}

.bundle-image {
  aspect-ratio: 16/10;
  background: var(--bg);
  overflow: hidden;
}

.bundle-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  margin-inline: auto;
}

.bundle-body {
  padding: 28px;
  text-align: center;
}

.bundle-tier {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 8px;
}

.bundle-price {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 12px 0 4px;
}

.bundle-price .was {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: line-through;
  margin-right: 8px;
}

.bundle-save {
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 16px;
}

.bundle-body ul {
  margin-bottom: 24px;
}

.bundle-body li {
  font-size: 0.9375rem;
  color: var(--text-muted);
  padding: 6px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.bundle-body li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  position: static;
}

/* Why */
.why-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  max-width: 1200px;
  margin-inline: auto;
}

.why-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
  flex: 0 1 320px;
  max-width: 360px;
  margin-inline: auto;
}

.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.why-icon {
  font-size: 1.25rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.why-card h3 {
  margin-bottom: 12px;
}

.why-card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

/* Reviews */
.reviews {
  background: var(--white);
}

.carousel {
  max-width: 640px;
  margin-inline: auto;
}

.carousel-track {
  position: relative;
  min-height: 200px;
}

.review {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
}

.review.is-active {
  position: relative;
  opacity: 1;
  transform: translateY(0);
}

.review-header {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  text-align: center;
}

.review-header > div {
  text-align: center;
}

.review-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, hsl(var(--hue, 170), 60%, 45%), hsl(calc(var(--hue, 170) + 30), 70%, 55%));
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stars {
  color: #FBBF24;
  font-size: 0.875rem;
  letter-spacing: 2px;
  margin: 2px 0;
}

.verified {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.review blockquote {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  text-align: center;
}

.carousel-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--white);
  cursor: pointer;
  font-size: 1.125rem;
  transition: var(--transition);
}

.carousel-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: scale(1.08);
}

.carousel-dots {
  display: flex;
  gap: 8px;
}

.carousel-dots button {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--border);
  cursor: pointer;
  padding: 0;
  transition: var(--transition);
}

.carousel-dots button.is-active {
  background: var(--accent);
  width: 24px;
  border-radius: 4px;
}

/* Shop */
.shop-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
}

.shop-gallery {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.shop-main {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 480px;
  margin-inline: auto;
}

.shop-main img {
  width: 100%;
  object-fit: contain;
  transition: opacity 0.2s ease;
  margin-inline: auto;
}

.shop-thumbs {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  justify-content: center;
}

.thumb {
  width: 72px;
  height: 72px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  background: var(--white);
  padding: 4px;
  transition: var(--transition);
}

.thumb.is-active,
.thumb:hover {
  border-color: var(--accent);
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.shop-desc {
  color: var(--text-muted);
  margin: 16px 0 24px;
}

.price-block {
  margin-bottom: 28px;
}

.price-now {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
  display: block;
}

.price-meta {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.shop-buy {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 480px;
  margin-inline: auto;
}

.order-form {
  width: 100%;
  max-width: 400px;
  margin-inline: auto;
}

.order-form label {
  display: block;
  margin-bottom: 16px;
  text-align: center;
}

.order-form label span {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.order-form select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  background: var(--white);
  cursor: pointer;
}

.checkout-status {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 12px;
  min-height: 1.25em;
}

.buy-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  justify-content: center;
}

.buy-trust li {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.buy-trust li::before {
  content: "✓";
  color: var(--accent);
  position: static;
}

/* FAQ */
.faq-section {
  background: var(--white);
  padding-bottom: 80px;
}

.faq-list {
  max-width: 720px;
  margin-inline: auto;
}

.faq-list details {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.faq-list summary {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--accent);
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list p {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.9375rem;
  text-align: center;
}

/* CTA Band */
.cta-band {
  background: var(--primary);
  color: var(--white);
  padding: 80px 0;
  text-align: center;
}

.cta-band h2 {
  color: var(--white);
  margin-bottom: 16px;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
  max-width: 480px;
  margin-inline: auto;
}

/* Footer */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.8);
  padding-top: 64px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-brand .logo {
  margin-bottom: 12px;
  justify-content: center;
}

.footer-brand .logo img {
  height: 36px;
  width: auto;
}

.footer-brand > p {
  font-size: 0.9375rem;
  margin-bottom: 24px;
}

.newsletter-form label {
  font-size: 0.8125rem;
  font-weight: 600;
  display: block;
  margin-bottom: 8px;
}

.newsletter-form {
  width: 100%;
  max-width: 400px;
}

.newsletter-row {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.newsletter-row input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-family: var(--font-body);
}

.newsletter-row input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.footer-cols {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px 48px;
  text-align: center;
  width: 100%;
  max-width: 800px;
  margin-inline: auto;
}

.footer-cols > div {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-cols h4 {
  color: var(--white);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.footer-cols a {
  display: block;
  font-size: 0.875rem;
  padding: 6px 0;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition);
}

.footer-cols a:hover {
  color: var(--highlight);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
}

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.65);
}

.footer-bottom a:hover {
  color: var(--highlight);
}

/* Sticky Buy */
.sticky-buy {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  padding: 12px 24px;
  transform: translateY(100%);
  transition: transform 0.35s ease;
}

.sticky-buy.is-visible {
  transform: translateY(0);
}

.sticky-buy[hidden] {
  display: block;
  visibility: hidden;
}

.sticky-buy.is-visible[hidden] {
  visibility: visible;
}

.sticky-buy-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 1200px;
  margin-inline: auto;
  gap: 16px;
}

.sticky-info {
  text-align: center;
}

.sticky-info strong {
  display: block;
  font-size: 0.9375rem;
}

.sticky-info span {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

/* Thank you page */
body.thank-you-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, var(--white) 0%, var(--bg) 100%);
}

.thank-you-stage {
  width: min(480px, 100% - 48px);
}

.thank-you-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  box-shadow: var(--shadow-hover);
  opacity: 0;
  transform: translateY(16px) scale(0.98);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

body.thank-you-ready .thank-you-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.thank-you-logo-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 24px;
}

.thank-you-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}

.thank-you-copy {
  color: var(--text-muted);
  margin: 16px 0 24px;
}

.thank-you-ref {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.thank-you-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Responsive */
@media (max-width: 900px) {
  :root {
    --header-h: 72px;
  }

  .header-inner {
    flex-direction: row;
    justify-content: center;
    padding: 12px 24px;
    position: relative;
  }

  .logo {
    flex: 1;
    justify-content: center;
  }

  .logo img {
    height: 36px;
  }

  .nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
  }

  .footer-cols {
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 64px 0;
  }

  .footer-cols {
    flex-direction: column;
    align-items: center;
  }

  .sticky-buy-inner {
    flex-direction: column;
    text-align: center;
  }

  .newsletter-row {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn:hover,
  .product-card:hover,
  .bundle-card:hover,
  .why-card:hover,
  .flow-node:hover {
    transform: none;
  }
}