/* =========================================================
   ThermaSole — Design tokens
========================================================= */
:root {
  --white: #FFFFFF;
  --orange: #FF8A00;
  --red: #E85D5D;
  --charcoal: #222222;
  --grey: #F7F7F7;

  --ink: #2A2622;
  --ink-soft: #6B6560;
  --line: #E8E3DC;

  --warm-gradient: linear-gradient(135deg, #FF8A00 0%, #E85D5D 100%);
  --warm-gradient-soft: linear-gradient(135deg, rgba(255,138,0,0.12), rgba(232,93,93,0.12));

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Figtree', 'Segoe UI', sans-serif;

  --shadow-sm: 0 2px 10px rgba(34,34,34,0.06);
  --shadow-md: 0 12px 32px rgba(34,34,34,0.09);
  --shadow-lg: 0 24px 60px rgba(34,34,34,0.14);
  --shadow-warm: 0 16px 40px rgba(255,138,0,0.25);

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;

  --container: 1180px;
  --nav-height: 76px;
}

/* =========================================================
   Reset
========================================================= */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 { font-family: var(--font-display); margin: 0; color: var(--charcoal); }
p { margin: 0; line-height: 1.6; color: var(--ink-soft); }
button { font-family: inherit; cursor: pointer; }

section { scroll-margin-top: var(--nav-height); position: relative; }

.accent-text {
  background: var(--warm-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-style: italic;
}

/* Section head helper */
.section-head { text-align: left; max-width: 640px; margin: 0 0 48px; }
.section-head.reveal { }
.eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 10px;
}
.eyebrow-center { text-align: center; }
.section-head h2 {
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 500;
  line-height: 1.2;
}

/* Center section heads on centered sections */
.benefits .section-head,
.how-it-works .section-head,
.faq .section-head {
  text-align: center;
  margin: 0 auto 56px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 30px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.98rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--warm-gradient);
  color: var(--white);
  box-shadow: var(--shadow-warm);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 20px 46px rgba(255,138,0,0.34); }
.btn-outline {
  background: var(--white);
  color: var(--charcoal);
  border-color: var(--charcoal);
}
.btn-outline:hover { background: var(--charcoal); color: var(--white); transform: translateY(-2px); }
.btn-small { padding: 10px 20px; font-size: 0.85rem; }
.btn-large { padding: 19px 38px; font-size: 1.05rem; }

/* Reveal-on-scroll animation — only hides content once JS confirms it will reveal it,
   so a slow/blocked script.js never leaves a section permanently invisible. */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }
.benefits-grid .benefit-card:nth-child(1) { transition-delay: 0s; }
.benefits-grid .benefit-card:nth-child(2) { transition-delay: 0.08s; }
.benefits-grid .benefit-card:nth-child(3) { transition-delay: 0.16s; }
.benefits-grid .benefit-card:nth-child(4) { transition-delay: 0.24s; }
.steps-grid .step:nth-child(2) { transition-delay: 0.1s; }
.steps-grid .step:nth-child(3) { transition-delay: 0.2s; }

/* =========================================================
   Nav
========================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 500;
  height: var(--nav-height);
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  height: 100%;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--charcoal);
  flex-shrink: 0;
}
.nav-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--warm-gradient);
  color: var(--white);
}
.nav-links {
  display: flex;
  gap: 32px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.nav-links a { transition: color 0.2s ease; }
.nav-links a:hover { color: var(--orange); }
.nav-cart {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--charcoal);
  flex-shrink: 0;
}

.phone-break { display: none; }

/* =========================================================
   Hero
========================================================= */
.hero {
  background: linear-gradient(180deg, #FFF9F2 0%, var(--white) 65%);
  padding: 64px 28px 80px;
}
.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.rating-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  margin-bottom: 22px;
}
.stars { color: var(--orange); display: flex; gap: 2px; }
.hero-content h1 {
  font-size: clamp(2.7rem, 5vw, 4.2rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.subheadline { font-size: 1.12rem; max-width: 480px; margin-bottom: 26px; }
.hero-checklist { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.hero-checklist li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--ink);
  font-size: 0.98rem;
}
.hero-checklist svg { color: var(--orange); flex-shrink: 0; }
.pack-selector { display: flex; gap: 12px; margin-bottom: 20px; }
.pack-option {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 10px;
  border: 2px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
}
.pack-option:hover { transform: translateY(-2px); }
.pack-option.active { border-color: var(--orange); background: var(--warm-gradient-soft); }
.pack-badge {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--warm-gradient);
  color: var(--white);
  font-size: 0.62rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
  white-space: nowrap;
}
.pack-name { font-weight: 700; font-size: 0.85rem; color: var(--charcoal); }
.pack-price-row { display: flex; align-items: baseline; justify-content: center; gap: 6px; flex-wrap: wrap; }
.pack-price { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; color: var(--charcoal); }
.pack-was { font-size: 0.8rem; color: var(--ink-soft); text-decoration: line-through; }
.pack-discount { display: inline-block; background: var(--warm-gradient-soft); color: var(--red); font-weight: 700; font-size: 0.66rem; padding: 2px 9px; border-radius: 100px; }
.pack-each { font-size: 0.7rem; color: var(--ink-soft); }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.stock-note { font-size: 0.85rem; color: var(--red); font-weight: 600; margin-bottom: 24px; }
.trust-row {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 20px;
}
.trust-row span { display: flex; align-items: center; gap: 7px; }
.trust-row svg { color: var(--orange); }

.hero-gallery { position: relative; }
.hero-slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
  scrollbar-width: none;
}
.hero-slider::-webkit-scrollbar { display: none; }
.hero-slide {
  position: relative;
  flex: 0 0 100%;
  scroll-snap-align: center;
  aspect-ratio: 1/1;
  padding: 28px;
  overflow: hidden;
}
.hero-slide img { width: 100%; height: 100%; object-fit: contain; position: relative; z-index: 1; }
/* Feather the outer edge only on photos whose own background (grey fabric) doesn't
   match the store's white card — blends the mismatch away without touching photos
   that already sit on a matching white background. */
.hero-slide.blend-edge img {
  -webkit-mask-image: radial-gradient(ellipse closest-side at center, black 68%, transparent 96%);
  mask-image: radial-gradient(ellipse closest-side at center, black 68%, transparent 96%);
}
.glow-blob {
  position: absolute;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, rgba(255,138,0,0.35), transparent 70%);
  filter: blur(30px);
  top: 20%;
  left: 20%;
  z-index: 0;
  animation: pulseGlow 3.5s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.12); }
}
.image-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--charcoal);
  color: var(--white);
  font-size: 0.76rem;
  font-weight: 700;
  padding: 7px 14px;
  border-radius: 100px;
}
.image-badge svg { color: var(--orange); }
.slider-dots { display: flex; justify-content: center; gap: 8px; margin-top: 16px; }
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line);
  padding: 0;
  border: none;
  transition: background 0.2s ease, width 0.2s ease;
}
.dot.active { background: var(--orange); width: 22px; border-radius: 100px; }

/* =========================================================
   Product
========================================================= */
.product { background: var(--white); padding: 100px 28px; }
.section-divider-top {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 60px;
  background: linear-gradient(180deg, var(--white), transparent);
}
.product-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 72px;
  align-items: center;
}
.product-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.product-image img { width: 100%; height: auto; display: block; }
.product-content h2 { font-size: clamp(1.9rem, 3vw, 2.5rem); font-weight: 500; margin-bottom: 18px; line-height: 1.2; }
.product-content p { font-size: 1.05rem; margin-bottom: 28px; max-width: 480px; }
.spec-grid { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 34px; }
.spec-chip {
  display: flex;
  align-items: center;
  gap: 9px;
  background: var(--grey);
  border-radius: 100px;
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--charcoal);
}
.spec-chip svg { color: var(--orange); }

/* =========================================================
   Benefits
========================================================= */
.benefits { background: var(--grey); padding: 100px 28px; }
.benefits-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.benefit-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.benefit-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.benefit-icon {
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--warm-gradient-soft);
  color: var(--orange);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.benefit-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 10px; }
.benefit-card p { font-size: 0.92rem; }

/* =========================================================
   How It Works
========================================================= */
.how-it-works { background: var(--white); padding: 100px 28px; }
.steps-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}
.step-visual {
  position: relative;
  width: 96px; height: 96px;
  margin: 0 auto 24px;
  display: flex; align-items: center; justify-content: center;
}
.glow-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--warm-gradient);
  opacity: 0.15;
  animation: ringPulse 2.6s ease-in-out infinite;
}
@keyframes ringPulse {
  0%, 100% { transform: scale(0.9); opacity: 0.15; }
  50% { transform: scale(1.08); opacity: 0.32; }
}
.step-number {
  position: relative;
  z-index: 1;
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--warm-gradient);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1.6rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-warm);
}
.step h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 10px; }
.step p { font-size: 0.94rem; max-width: 280px; margin: 0 auto; }

/* =========================================================
   Why Heat Helps
========================================================= */
.why-heat { background: var(--grey); padding: 100px 28px; }
.why-heat-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
  align-items: center;
}
.why-heat-visual {
  display: flex;
  justify-content: center;
}
.pressure-diagram { width: 100%; max-width: 260px; }
.pressure-diagram .pp {
  fill: var(--orange);
  animation: ppPulse 2.4s ease-in-out infinite;
}
.pressure-diagram .pp:nth-child(3) { animation-delay: 0.3s; }
.pressure-diagram .pp:nth-child(4) { animation-delay: 0.6s; }
.pressure-diagram .pp:nth-child(5) { animation-delay: 0.9s; }
.pressure-diagram .pp:nth-child(6) { animation-delay: 1.2s; }
.pressure-diagram .pp:nth-child(7) { animation-delay: 1.5s; }
@keyframes ppPulse {
  0%, 100% { opacity: 0.5; r: 6; }
  50% { opacity: 1; r: 8; }
}
.why-heat-content h2 { font-size: clamp(1.9rem, 3vw, 2.5rem); font-weight: 500; margin-bottom: 22px; line-height: 1.2; }
.check-list { display: flex; flex-direction: column; gap: 13px; margin-bottom: 22px; }
.check-list li { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--ink); }
.check-list svg { color: var(--orange); flex-shrink: 0; }
.fine-note { font-size: 0.82rem; font-style: italic; max-width: 480px; }

/* =========================================================
   Lifestyle
========================================================= */
.lifestyle {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.lifestyle-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.lifestyle-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(34,26,20,0.82) 0%, rgba(34,26,20,0.55) 45%, rgba(34,26,20,0.15) 75%);
}
.lifestyle-content {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  width: 100%;
  max-width: 520px;
  margin-left: max(28px, calc((100vw - var(--container)) / 2));
  color: var(--white);
}
.lifestyle-content h2 { color: var(--white); font-size: clamp(2rem, 3.4vw, 2.8rem); font-weight: 500; margin-bottom: 18px; line-height: 1.2; }
.lifestyle-content p { color: rgba(255,255,255,0.88); font-size: 1.08rem; margin-bottom: 30px; }

/* =========================================================
   Reviews
========================================================= */
.reviews { background: var(--grey); padding: 100px 28px; }
.rating-banner {
  max-width: var(--container);
  margin: 0 auto 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 48px;
  box-shadow: var(--shadow-sm);
  text-align: left;
}
.rating-banner-score {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 500;
  color: var(--charcoal);
}
.rating-banner-score span { font-size: 1.4rem; color: var(--ink-soft); }
.stars-lg { color: var(--orange); display: flex; gap: 3px; margin-bottom: 6px; }
.reviews-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.review-top { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--warm-gradient);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.review-name { display: block; font-weight: 700; font-size: 0.95rem; color: var(--charcoal); }
.verified { display: flex; align-items: center; gap: 5px; font-size: 0.76rem; color: var(--ink-soft); font-weight: 600; }
.verified svg { color: var(--orange); }
.stars-sm { color: var(--orange); display: flex; gap: 2px; margin-bottom: 12px; }
.star-empty { color: var(--line); }
.review-card p { font-size: 0.94rem; }

/* =========================================================
   FAQ
========================================================= */
.faq { background: var(--white); padding: 100px 28px; }
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--grey);
  border-radius: var(--radius-md);
  padding: 6px 26px;
  border: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.faq-item[open] { border-color: var(--orange); background: var(--white); box-shadow: var(--shadow-sm); }
.faq-item summary {
  padding: 20px 0;
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--charcoal);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--orange);
  transition: transform 0.25s ease;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 0 22px; font-size: 0.95rem; }

/* =========================================================
   Final CTA
========================================================= */
.final-cta { background: var(--charcoal); padding: 100px 28px; position: relative; overflow: hidden; }
.final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.5;
  background-image: radial-gradient(rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 4px 4px;
}
.final-cta-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
  align-items: center;
}
.final-cta-image { position: relative; border-radius: var(--radius-lg); overflow: hidden; }
.final-cta-image img { width: 100%; position: relative; z-index: 1; }
.final-cta-content h2 { color: var(--white); font-size: clamp(2.1rem, 3.6vw, 3rem); font-weight: 500; margin-bottom: 16px; }
.final-cta-content p { color: rgba(255,255,255,0.72); font-size: 1.1rem; margin-bottom: 30px; }

/* =========================================================
   Footer
========================================================= */
.footer { background: #1B1815; padding: 48px 28px 28px; color: rgba(255,255,255,0.7); }
.footer-badges {
  max-width: var(--container);
  margin: 0 auto 40px;
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  font-weight: 600;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-badges span { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.85); }
.footer-badges svg { color: var(--orange); }
.footer-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
}
.footer-logo { color: var(--white); margin-bottom: 12px; }
.footer-brand p { font-size: 0.88rem; margin-bottom: 18px; }
.social-row { display: flex; gap: 12px; }
.social-row a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  transition: background 0.2s ease;
}
.social-row a:hover { background: var(--warm-gradient); }
.footer-links h4 { color: var(--white); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px; }
.footer-links a { display: block; font-size: 0.9rem; margin-bottom: 12px; color: rgba(255,255,255,0.65); transition: color 0.2s ease; }
.footer-links a:hover { color: var(--orange); }
.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.footer-note { color: var(--orange); opacity: 0.8; }

/* =========================================================
   Sticky bars
========================================================= */
.sticky-mobile-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 600;
  background: var(--white);
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 24px rgba(0,0,0,0.08);
  padding: 10px 16px;
  align-items: center;
  gap: 12px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.sticky-mobile-bar.visible { transform: translateY(0); }
.sticky-mobile-bar img { width: 42px; height: 42px; border-radius: 10px; object-fit: cover; }
.sticky-mobile-bar span { flex: 1; font-size: 0.82rem; font-weight: 700; color: var(--charcoal); }

.sticky-cart-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 600;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transform: translateY(-100%);
  transition: transform 0.3s ease;
}
.sticky-cart-bar.visible { transform: translateY(0); }
.sticky-cart-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.sticky-cart-inner img { width: 46px; height: 46px; border-radius: 12px; object-fit: cover; flex-shrink: 0; }
.sticky-cart-inner span { flex: 1; font-weight: 700; font-size: 0.92rem; color: var(--charcoal); }
.sticky-cart-inner .hero-ctas { margin: 0; }

/* =========================================================
   Responsive
========================================================= */
@media (max-width: 1024px) {
  .hero-inner, .product-inner, .why-heat-inner, .final-cta-inner { grid-template-columns: 1fr; gap: 44px; }
  .product-image, .final-cta-image { order: -1; }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}

@media (max-width: 720px) {
  /* Mobile hero: header -> subheadline -> photo slider -> checklist -> price -> buttons */
  :root { --nav-height: 56px; }
  .nav-logo { font-size: 1.05rem; }
  .nav-logo-mark { width: 28px; height: 28px; }
  .nav-buy { display: none; }
  .nav-cart { display: flex; }
  .phone-break { display: block; }
  .hero { padding: 20px 20px 28px; }

  /* Grid hero: big full-width photo, with a compact 2-up checklist row underneath. */
  .hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: 10px;
    row-gap: 14px;
    grid-template-areas:
      "badge    badge"
      "title    title"
      "sub      sub"
      "gallery  gallery"
      "checklist checklist"
      "price    price"
      "ctas     ctas"
      "stock    stock"
      "trust    trust";
  }
  .hero-content { display: contents; }

  .rating-badge { grid-area: badge; font-size: 0.78rem; padding: 6px 14px; margin: 0 auto; display: flex; width: fit-content; }
  .hero-content h1 { grid-area: title; font-size: 2.2rem; line-height: 1.12; margin-bottom: 0; }
  .hero-content .subheadline { grid-area: sub; font-size: 0.92rem; margin-bottom: 0; text-align: center; }

  .hero-gallery { grid-area: gallery; margin: 0; max-width: 100%; min-width: 0; align-self: start; }
  .hero-main-image, .hero-slider { border: 1px solid var(--line); background: var(--white); }
  .image-badge { top: 12px; left: 12px; font-size: 0.68rem; padding: 5px 10px; gap: 5px; }

  .hero-content .hero-checklist {
    grid-area: checklist;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: 12px;
    row-gap: 8px;
    margin-bottom: 0;
    min-width: 0;
  }
  .hero-content .hero-checklist li { font-size: 0.68rem; align-items: flex-start; gap: 5px; line-height: 1.25; }
  .hero-content .hero-checklist svg { margin-top: 2px; width: 12px; height: 12px; }

  .pack-selector { grid-area: price; margin-bottom: 0; gap: 8px; }
  .pack-option { padding: 10px 6px; }
  .pack-name { font-size: 0.72rem; }
  .pack-price-row { gap: 4px; }
  .pack-price { font-size: 1.05rem; }
  .pack-was { font-size: 0.62rem; }
  .pack-discount { font-size: 0.56rem; padding: 1px 7px; }
  .pack-each { font-size: 0.6rem; }
  .pack-badge { font-size: 0.56rem; padding: 2px 8px; top: -9px; }
  .hero-content .hero-ctas { grid-area: ctas; margin-bottom: 0; flex-wrap: nowrap; }
  .hero-content .stock-note { grid-area: stock; text-align: center; margin-bottom: 0; }
  .hero-content .trust-row { grid-area: trust; justify-content: center; margin-bottom: 0; }

  .steps-grid { grid-template-columns: 1fr; gap: 48px; }
  .why-heat-visual { display: none; }
  .benefits-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .rating-banner { flex-direction: column; text-align: center; padding: 32px 24px; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .social-row { justify-content: center; }
  .footer-brand { display: flex; flex-direction: column; align-items: center; }
  .footer-bottom { justify-content: center; text-align: center; }
  .lifestyle-content { margin-left: 28px; margin-right: 28px; max-width: none; }
  .btn-large { width: 100%; }
  .final-cta-content .hero-ctas, .hero-ctas { flex-wrap: nowrap; gap: 10px; }
  .hero-ctas .btn { flex: 1; padding-left: 10px; padding-right: 10px; font-size: 0.86rem; }

  .sticky-mobile-bar { display: flex; }
  .sticky-cart-bar { display: none; }
  body { padding-bottom: 68px; } /* room for sticky mobile bar */
}

@media (min-width: 721px) {
  .sticky-mobile-bar { display: none; }
}