/* ============================================================
   FlexBreeze Pro Mist Fan — Landing Page Styles
   Pure CSS3, no frameworks, no CDN, no build process.
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --accent: #0aa5ff;
  --accent-deep: #0066d6;
  --accent-warm: #ff6b35;
  --dark: #101418;
  --dark-2: #1a1f26;
  --dark-3: #252b34;
  --light: #f5f7fa;
  --white: #ffffff;
  --text: #1a1f26;
  --text-muted: #6b7280;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 4px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.15);
  --radius: 20px;
  --radius-sm: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
input, textarea { font-family: inherit; }

/* ---------- Skip Link ---------- */
.skip-link {
  position: absolute; top: -100%; left: 0;
  background: var(--accent); color: var(--white);
  padding: 12px 20px; font-weight: 600; z-index: 10000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { top: 0; }

/* ---------- Fixed Nav ---------- */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 24px; height: 64px; display: flex; align-items: center;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}
.site-nav.scrolled {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: 1280px; width: 100%; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-size: 1.25rem; font-weight: 800; letter-spacing: -0.03em;
  color: var(--white); transition: color var(--transition);
}
.site-nav.scrolled .nav-logo { color: var(--dark); }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  font-size: 0.875rem; font-weight: 500; color: rgba(255,255,255,0.85);
  transition: color var(--transition); position: relative;
}
.site-nav.scrolled .nav-links a { color: var(--text); }
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--accent); transition: width var(--transition);
}
.nav-links a:hover::after { width: 100%; }
.nav-buy-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white); font-size: 0.875rem; font-weight: 600;
  padding: 8px 20px; border-radius: 100px; transition: transform var(--transition), box-shadow var(--transition);
}
.nav-buy-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(10,165,255,0.35); }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-hamburger span {
  display: block; width: 22px; height: 2px; background: var(--white);
  transition: background var(--transition), transform var(--transition), opacity var(--transition);
}
.site-nav.scrolled .nav-hamburger span { background: var(--dark); }

/* ---------- Mobile Menu ---------- */
.mobile-menu { position: fixed; inset: 0; z-index: 2000; }
.mobile-menu[hidden] { display: none; }
.mobile-menu-overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,0.4);
  animation: fadeIn 0.3s ease;
}
.mobile-menu-panel {
  position: absolute; top: 0; right: 0; width: min(320px, 85vw);
  height: 100%; background: var(--white); padding: 60px 28px 28px;
  animation: slideInRight 0.3s ease;
}
.mobile-menu-close {
  position: absolute; top: 16px; right: 20px; font-size: 2rem; color: var(--text);
}
.mobile-menu-links { display: flex; flex-direction: column; gap: 20px; }
.mobile-menu-links a {
  font-size: 1.1rem; font-weight: 500; color: var(--text); padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.mobile-menu-buy {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white) !important; text-align: center; border-radius: 100px;
  padding: 14px !important; margin-top: 12px; border: none !important;
}

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  justify-content: center; text-align: center; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #0a1628 0%, #1a3a5c 50%, #0a1628 100%);
  z-index: 0;
}
.hero-bg::before {
  content: ''; position: absolute; inset: 0;
  background: url('images/hero.jpg') center/cover no-repeat;
  opacity: 0.6;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(16,20,24,0.3) 0%, rgba(16,20,24,0.7) 100%);
  z-index: 1;
}
.hero-content {
  position: relative; z-index: 2; max-width: 800px; padding: 120px 24px 60px;
}
.hero-headline {
  font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800;
  line-height: 1.1; letter-spacing: -0.03em; color: var(--white);
  margin-bottom: 20px; opacity: 0; transform: translateY(30px);
}
.hero-subline {
  font-size: clamp(1rem, 2vw, 1.25rem); color: rgba(255,255,255,0.85);
  max-width: 640px; margin: 0 auto 36px; line-height: 1.7;
  opacity: 0; transform: translateY(30px);
}
.hero-subline strong { color: var(--accent); }
.hero-buttons {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 60px; opacity: 0; transform: translateY(30px);
}
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white); font-size: 1rem; font-weight: 600;
  padding: 14px 32px; border-radius: 100px;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px rgba(10,165,255,0.3);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(10,165,255,0.4); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.12); color: var(--white);
  font-size: 1rem; font-weight: 600; padding: 14px 32px;
  border-radius: 100px; border: 1px solid rgba(255,255,255,0.25);
  transition: background var(--transition), transform var(--transition);
}
.btn-secondary:hover { background: rgba(255,255,255,0.2); transform: translateY(-3px); }
.hero-counters {
  display: flex; gap: 48px; justify-content: center; flex-wrap: wrap;
  opacity: 0; transform: translateY(30px);
}
.counter { text-align: center; }
.counter-number {
  display: block; font-size: clamp(2rem, 4vw, 3rem); font-weight: 800;
  color: var(--accent); line-height: 1;
}
.counter-unit {
  font-size: 0.875rem; color: rgba(255,255,255,0.7); text-transform: uppercase;
  letter-spacing: 0.08em; margin-top: 6px;
}

/* ---------- Pricing Card ---------- */
.pricing {
  padding: 80px 24px; display: flex; justify-content: center;
  background: var(--light);
}
.pricing-card {
  background: var(--white); border-radius: var(--radius);
  padding: 48px; max-width: 480px; width: 100%; text-align: center;
  box-shadow: var(--shadow-lg); position: relative;
  opacity: 0; transform: translateY(40px);
}
.pricing-badge {
  display: inline-block; background: linear-gradient(135deg, #ff6b35, #ff4757);
  color: var(--white); font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  padding: 6px 16px; border-radius: 100px; margin-bottom: 20px;
  animation: pulseBadge 2s ease-in-out infinite;
}
@keyframes pulseBadge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}
.pricing-row { display: flex; align-items: baseline; justify-content: center; gap: 16px; margin-bottom: 8px; }
.pricing-was { font-size: 1.25rem; color: var(--text-muted); text-decoration: line-through; }
.pricing-now {
  font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.pricing-note { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 24px; }
.pricing-buy-btn {
  display: inline-block; width: 100%; max-width: 300px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white); font-size: 1.1rem; font-weight: 700;
  padding: 16px 32px; border-radius: 100px;
  transition: transform var(--transition), box-shadow var(--transition);
  animation: glowPulse 2.5s ease-in-out infinite;
  margin-bottom: 24px;
}
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(10,165,255,0.3); }
  50% { box-shadow: 0 8px 40px rgba(10,165,255,0.5); }
}
.pricing-buy-btn:hover { transform: translateY(-3px); }
.pricing-perks { display: flex; flex-direction: column; gap: 10px; }
.pricing-perks li {
  font-size: 0.9rem; color: var(--text-muted);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.pricing-perks li::before {
  content: ''; display: inline-block; width: 18px; height: 18px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230aa5ff'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* ---------- Showcase ---------- */
.showcase {
  position: relative; min-height: 500px; display: flex; align-items: center;
  overflow: hidden;
}
.showcase-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #1a3a5c 0%, #0a1628 100%);
}
.showcase-bg::before {
  content: ''; position: absolute; inset: 0;
  background: url('images/showcase.jpg') center/cover no-repeat;
  opacity: 0.5;
}
.showcase-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(16,20,24,0.8) 0%, rgba(16,20,24,0.3) 100%);
}
.showcase-content {
  position: relative; z-index: 2; max-width: 1280px; width: 100%;
  margin: 0 auto; padding: 60px 24px;
}
.showcase-banner {
  display: inline-block; background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white); font-size: clamp(1.5rem, 3vw, 2.5rem); font-weight: 800;
  padding: 16px 36px; border-radius: var(--radius); margin-bottom: 32px;
  box-shadow: var(--shadow-lg);
}
.showcase-callouts { display: flex; gap: 20px; flex-wrap: wrap; }
.showcase-callout {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,0.1); backdrop-filter: blur(10px);
  padding: 14px 24px; border-radius: 100px; border: 1px solid rgba(255,255,255,0.15);
}
.showcase-callout svg { width: 22px; height: 22px; stroke: var(--accent); fill: none; stroke-width: 2; }
.showcase-callout span { color: var(--white); font-weight: 600; font-size: 0.95rem; }

/* ---------- 3D Brand Ring ---------- */
.brand-ring {
  background: var(--dark); padding: 80px 24px; overflow: hidden;
  display: flex; justify-content: center; align-items: center;
  min-height: 280px; perspective: 800px;
}
.ring-wrapper {
  width: 100%; max-width: 600px; height: 120px;
  display: flex; justify-content: center; align-items: center;
  overflow: hidden;
}
.ring-cylinder {
  position: relative; width: 100%; height: 100%;
  transform-style: preserve-3d;
  animation: ringRotate 12s linear infinite;
}
@keyframes ringRotate {
  from { transform: rotateY(0deg); }
  to { transform: rotateY(360deg); }
}
.ring-text {
  position: absolute; left: 50%; top: 50%;
  font-size: clamp(1.5rem, 4vw, 2.5rem); font-weight: 800;
  letter-spacing: 0.15em; text-transform: uppercase;
  background: linear-gradient(135deg, var(--white), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  white-space: nowrap;
  transform-origin: center center;
  backface-visibility: hidden;
}

/* ---------- Video Section ---------- */
.video-section {
  padding: 80px 24px; text-align: center; background: var(--light);
}
.video-phone {
  position: relative; max-width: 420px; width: 100%; margin: 40px auto 0;
  background: var(--dark-2); border-radius: 36px; padding: 12px 12px 16px;
  box-shadow: var(--shadow-lg);
}
.video-phone-notch {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 120px; height: 28px; background: var(--dark-2);
  border-radius: 0 0 18px 18px; z-index: 2;
}
.video-phone video {
  width: 100%; border-radius: 28px; display: block;
  aspect-ratio: 9/16; object-fit: cover; background: var(--dark-3);
}

/* ---------- Section Title ---------- */
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800;
  text-align: center; letter-spacing: -0.02em; margin-bottom: 48px;
  opacity: 0; transform: translateY(30px);
}

/* ---------- Features Grid ---------- */
.features {
  padding: 100px 24px; max-width: 1280px; margin: 0 auto;
}
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--white); border-radius: var(--radius);
  padding: 36px; box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  opacity: 0; transform: translateY(40px);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-icon {
  width: 56px; height: 56px; margin-bottom: 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
}
.feature-icon svg { width: 28px; height: 28px; fill: var(--white); }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }

/* ---------- Accent CTA Band ---------- */
.accent-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  padding: 60px 24px; text-align: center;
}
.accent-cta-inner { max-width: 600px; margin: 0 auto; }
.accent-cta p {
  font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 700;
  color: var(--white); margin-bottom: 24px;
}
.accent-cta .btn-primary { background: var(--white); color: var(--accent); }

/* ---------- Interactive Specs ---------- */
.specs {
  padding: 100px 24px; max-width: 1280px; margin: 0 auto;
}
.specs-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.specs-image img { width: 100%; max-width: 500px; margin: 0 auto; border-radius: var(--radius); }
.specs-tabs {
  display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap;
}
.specs-tab {
  padding: 10px 20px; border-radius: 100px; font-size: 0.875rem; font-weight: 600;
  color: var(--text-muted); background: var(--light); transition: all var(--transition);
}
.specs-tab.active, .specs-tab:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white);
}
.specs-panel { display: none; }
.specs-panel.active { display: block; animation: fadeIn 0.3s ease; }
.specs-panel ul { display: flex; flex-direction: column; gap: 14px; }
.specs-panel li {
  font-size: 0.95rem; color: var(--text-muted); padding-left: 24px; position: relative;
}
.specs-panel li::before {
  content: ''; position: absolute; left: 0; top: 8px;
  width: 8px; height: 8px; background: var(--accent); border-radius: 50%;
}
.specs-panel li strong { color: var(--text); }

/* ---------- Cooling Scenarios ---------- */
.cooling {
  padding: 100px 24px; max-width: 1280px; margin: 0 auto;
}
.cooling-inner {
  display: grid; grid-template-columns: auto 1fr; gap: 48px; align-items: start;
}
.thermometer-graphic {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.thermometer-tube {
  position: relative; width: 24px; height: 280px;
  background: var(--border); border-radius: 12px; overflow: hidden;
}
.thermometer-fill {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, var(--accent), var(--accent-warm));
  border-radius: 0 0 12px 12px;
  animation: thermometerDrop 4s ease-in-out infinite;
}
@keyframes thermometerDrop {
  0% { height: 100%; }
  50% { height: 30%; }
  100% { height: 100%; }
}
.thermometer-bulb {
  position: absolute; bottom: -16px; left: 50%; transform: translateX(-50%);
  width: 40px; height: 40px; background: var(--accent); border-radius: 50%;
  animation: bulbPulse 4s ease-in-out infinite;
}
@keyframes bulbPulse {
  0%, 100% { background: var(--accent-warm); }
  50% { background: var(--accent); }
}
.thermometer-labels {
  display: flex; flex-direction: column; justify-content: space-between;
  height: 280px; font-size: 0.8rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em;
}
.thermometer-hot { color: var(--accent-warm); }
.thermometer-cool { color: var(--accent); }
.cooling-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px;
}
.cooling-card {
  background: var(--white); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  transition: transform var(--transition); opacity: 0; transform: translateY(40px);
}
.cooling-card:hover { transform: translateY(-6px); }
.cooling-card-icon {
  width: 48px; height: 48px; margin-bottom: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
}
.cooling-card-icon svg { width: 24px; height: 24px; fill: var(--white); }
.cooling-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.cooling-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.cooling-card-counter {
  font-size: 1.5rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

/* ---------- Comparison Table ---------- */
.compare {
  padding: 100px 24px; max-width: 1000px; margin: 0 auto;
}
.compare-table-wrapper { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); }
.compare-table { width: 100%; border-collapse: collapse; min-width: 600px; }
.compare-table th, .compare-table td { padding: 16px 20px; text-align: left; font-size: 0.9rem; }
.compare-table thead th {
  background: var(--dark); color: var(--white); font-weight: 700;
}
.compare-table thead th:first-child { border-radius: var(--radius) 0 0 0; }
.compare-table thead th:last-child { border-radius: 0 var(--radius) 0 0; }
.compare-table tbody tr:nth-child(even) { background: var(--light); }
.compare-table tbody tr:last-child td:first-child { border-radius: 0 0 0 var(--radius); }
.compare-table tbody tr:last-child td:last-child { border-radius: 0 0 var(--radius) 0; }
.compare-highlight {
  background: linear-gradient(135deg, rgba(10,165,255,0.08), rgba(0,102,214,0.08));
  font-weight: 600; color: var(--accent-deep);
}

/* ---------- Reviews ---------- */
.reviews {
  padding: 100px 24px; max-width: 1280px; margin: 0 auto;
}
.reviews-summary {
  display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 48px;
}
.reviews-stars { display: flex; gap: 4px; }
.reviews-stars svg { width: 24px; height: 24px; fill: #fbbf24; }
.reviews-score { font-size: 1.1rem; font-weight: 700; color: var(--text); }
.reviews-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px;
}
.review-card {
  background: var(--white); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  transition: transform var(--transition); opacity: 0; transform: translateY(40px);
}
.review-card:hover { transform: translateY(-6px); }
.review-stars { display: flex; gap: 3px; margin-bottom: 16px; }
.review-stars svg { width: 18px; height: 18px; fill: #fbbf24; }
.review-text { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.review-author { font-size: 0.85rem; font-weight: 600; color: var(--text); }

/* ---------- Gallery ---------- */
.gallery {
  padding: 100px 24px; max-width: 1280px; margin: 0 auto;
}
.gallery-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px;
}
.gallery-item {
  border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 1; box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.gallery-item:hover { transform: scale(1.03); box-shadow: var(--shadow-lg); }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.gallery-item:hover img { transform: scale(1.08); }

/* ---------- FAQ ---------- */
.faq {
  padding: 100px 24px; max-width: 800px; margin: 0 auto;
}
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--white); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm); overflow: hidden;
  opacity: 0; transform: translateY(30px);
}
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; font-size: 1rem; font-weight: 600; color: var(--text);
  text-align: left; transition: background var(--transition);
}
.faq-question:hover { background: var(--light); }
.faq-chevron {
  width: 20px; height: 20px; fill: var(--text-muted);
  transition: transform var(--transition); flex-shrink: 0;
}
.faq-question[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-answer:not([hidden]) {
  max-height: 300px; padding: 0 24px 20px;
}
.faq-answer p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }

/* ---------- Final CTA ---------- */
.final-cta {
  background: var(--dark); padding: 100px 24px; text-align: center;
}
.final-cta-inner { max-width: 600px; margin: 0 auto; }
.final-cta h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800;
  color: var(--white); margin-bottom: 24px;
}
.final-cta-price {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  flex-wrap: wrap; margin-bottom: 32px;
}
.final-cta-was { font-size: 1.5rem; color: var(--text-muted); text-decoration: line-through; }
.final-cta-now {
  font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.final-cta-save {
  background: linear-gradient(135deg, var(--accent-warm), #ff4757);
  color: var(--white); font-size: 0.8rem; font-weight: 700;
  padding: 6px 14px; border-radius: 100px;
}
.final-cta-tag {
  margin-top: 20px; font-size: 0.9rem; color: rgba(255,255,255,0.5);
  font-weight: 600; letter-spacing: 0.05em;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark-2); color: rgba(255,255,255,0.7); padding: 60px 24px 24px;
}
.footer-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 48px;
}
.footer-logo {
  font-size: 1.25rem; font-weight: 800; letter-spacing: -0.03em;
  color: var(--white); display: inline-block; margin-bottom: 12px;
}
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-col h4 { color: var(--white); font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-col a { display: block; font-size: 0.9rem; color: rgba(255,255,255,0.6); padding: 6px 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  max-width: 1280px; margin: 40px auto 0; padding-top: 20px;
  border-top: 1px solid var(--dark-3); text-align: center;
  font-size: 0.8rem; color: rgba(255,255,255,0.4);
}

/* ---------- Sticky Purchase Bar ---------- */
.sticky-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 900;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
  padding: 12px 24px; transform: translateY(100%);
  transition: transform var(--transition);
}
.sticky-bar.visible { transform: translateY(0); }
.sticky-bar-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.sticky-bar-name { font-weight: 700; color: var(--text); }
.sticky-bar-price s { color: var(--text-muted); margin-right: 8px; }
.sticky-bar-price strong { font-size: 1.25rem; color: var(--accent-deep); }
.sticky-bar-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white); font-size: 0.875rem; font-weight: 600;
  padding: 10px 24px; border-radius: 100px;
  transition: transform var(--transition);
}
.sticky-bar-btn:hover { transform: translateY(-2px); }

/* ---------- Chatbot ---------- */
.chatbot-launcher {
  position: fixed; bottom: 24px; right: 24px; z-index: 3000;
  display: flex; align-items: center; gap: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white); font-size: 0.9rem; font-weight: 600;
  padding: 14px 24px; border-radius: 100px;
  box-shadow: 0 8px 30px rgba(10,165,255,0.35);
  transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition);
}
.chatbot-launcher:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(10,165,255,0.45); }
.chatbot-launcher svg { width: 20px; height: 20px; fill: currentColor; }
.chatbot-launcher.hidden { opacity: 0; pointer-events: none; transform: translateY(20px); }

.chatbot {
  position: fixed; bottom: 24px; right: 24px; z-index: 3000;
  width: 360px; max-height: calc(100dvh - 48px);
  background: var(--white); border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  display: flex; flex-direction: column; overflow: hidden;
  transition: opacity var(--transition), transform var(--transition);
}
.chatbot[hidden] { display: none; }
.chatbot-header {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white); padding: 16px 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.chatbot-header-text { display: flex; flex-direction: column; }
.chatbot-header-text strong { font-size: 0.95rem; font-weight: 700; }
.chatbot-header-text span { font-size: 0.8rem; opacity: 0.85; }
.chatbot-minimize {
  font-size: 1.5rem; color: var(--white); line-height: 1;
  padding: 4px; width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; transition: background var(--transition);
}
.chatbot-minimize:hover { background: rgba(255,255,255,0.2); }
.chatbot-messages {
  flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px;
  min-height: 300px; max-height: 400px;
}
.chatbot-message {
  max-width: 85%; padding: 12px 16px; border-radius: 16px;
  font-size: 0.9rem; line-height: 1.6; word-wrap: break-word;
  animation: messageIn 0.3s ease;
}
@keyframes messageIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.chatbot-message.bot { background: var(--light); color: var(--text); align-self: flex-start; border-bottom-left-radius: 4px; }
.chatbot-message.user { background: linear-gradient(135deg, var(--accent), var(--accent-deep)); color: var(--white); align-self: flex-end; border-bottom-right-radius: 4px; }
.chatbot-typing {
  display: flex; gap: 4px; padding: 12px 16px; background: var(--light);
  border-radius: 16px; border-bottom-left-radius: 4px; align-self: flex-start;
  width: fit-content;
}
.chatbot-typing span {
  width: 8px; height: 8px; background: var(--text-muted); border-radius: 50%;
  animation: typingBounce 1.4s ease-in-out infinite;
}
.chatbot-typing span:nth-child(2) { animation-delay: 0.2s; }
.chatbot-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-6px); }
}
.chatbot-quick-replies {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px;
}
.chatbot-quick-reply {
  background: var(--light); color: var(--accent-deep);
  font-size: 0.8rem; font-weight: 600; padding: 8px 14px;
  border-radius: 100px; border: 1px solid var(--border);
  transition: all var(--transition);
}
.chatbot-quick-reply:hover { background: var(--accent); color: var(--white); border-color: var(--accent); }
.chatbot-input-area {
  display: flex; gap: 8px; padding: 12px 16px 16px;
  border-top: 1px solid var(--border);
}
.chatbot-input-area input {
  flex: 1; padding: 10px 16px; border-radius: 100px;
  border: 1px solid var(--border); font-size: 0.9rem; outline: none;
  transition: border-color var(--transition);
}
.chatbot-input-area input:focus { border-color: var(--accent); }
.chatbot-input-area button {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white); display: flex; align-items: center; justify-content: center;
  transition: transform var(--transition);
}
.chatbot-input-area button:hover { transform: scale(1.1); }
.chatbot-input-area button svg { width: 18px; height: 18px; fill: currentColor; }
.chatbot-buy-link {
  display: inline-block; margin-top: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white); font-size: 0.8rem; font-weight: 600;
  padding: 8px 16px; border-radius: 100px;
}

/* ---------- Scroll Animations ---------- */
.reveal {
  opacity: 1 !important;
  transform: translateY(0) !important;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ring-cylinder { animation: none; }
  .thermometer-fill { animation: none; height: 30%; }
  .thermometer-bulb { animation: none; background: var(--accent); }
  .pricing-buy-btn { animation: none; }
  .pricing-badge { animation: none; }
  .reveal { transition: none; }
  .chatbot-message { animation: none; }
  .chatbot-typing span { animation: none; }
}

/* ---------- Keyframes ---------- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideInRight { from { transform: translateX(100%); } to { transform: translateX(0); } }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .specs-inner { grid-template-columns: 1fr; text-align: center; }
  .specs-image { order: -1; }
  .specs-tabs { justify-content: center; }
  .cooling-inner { grid-template-columns: 1fr; }
  .thermometer-graphic { flex-direction: row; justify-content: center; }
  .thermometer-labels { height: auto; flex-direction: row; gap: 20px; }
}

@media (max-width: 768px) {
  .nav-links, .nav-buy-btn { display: none; }
  .nav-hamburger { display: flex; }
  .hero-content { padding-top: 100px; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-counters { gap: 24px; }
  .pricing-card { padding: 32px 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .compare-table-wrapper { margin: 0 -24px; border-radius: 0; }
  .sticky-bar-inner { flex-wrap: wrap; justify-content: center; }
  .sticky-bar-name { display: none; }
}

@media (max-width: 680px) {
  .chatbot {
    position: fixed; inset: 0; width: 100%; max-height: 100dvh;
    border-radius: 0; bottom: 0; right: 0;
    padding-bottom: env(safe-area-inset-bottom);
  }
  .chatbot-messages { max-height: none; min-height: auto; }
  .chatbot-launcher { bottom: 16px; right: 16px; padding: 12px 18px; }
  body.chatbot-open { overflow: hidden; }
}

@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .showcase-callouts { flex-direction: column; }
}

/* ---------- Hero Trust Line ---------- */
.hero-trust {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 20px;
  opacity: 0;
  transform: translateY(30px);
}
.hero-trust span {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.7);
  display: flex;
  align-items: center;
  gap: 6px;
}
.hero-trust span::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230aa5ff'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* ---------- Reviews (Use Cases) ---------- */
.review-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

/* ---------- Comparison Subtitle ---------- */
.compare-subtitle {
  text-align: center;
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: -32px auto 40px;
  line-height: 1.6;
}