/* ============================================================
   DAYRELAX 2026 — Design System
   ============================================================ */

:root {
  /* Colors — Primary (kept for accent surfaces only, not dominant) */
  --primary-950: #0A1428;
  --primary-900: #152A4A;
  --primary-800: #1E3A63;
  --primary-700: #2E5088;
  --primary-600: #3F68A8;
  --primary-500: #5A83C4;

  /* Accent — Soft Air Blue (lighter, airier) */
  --accent-200: #BAE6FD;
  --accent-300: #7DD3FC;
  --accent-400: #38BDF8;
  --accent-500: #1DA1F2;
  --accent-600: #0284C7;

  /* Snow / Neutrals — DOMINANT PALETTE */
  --snow:      #F4F9FD;      /* Soft sky wash */
  --ice:       #FAFCFE;      /* Near-white fresh */
  --mist:      #EDF3F9;      /* Subtle gray-blue */
  --ink:       #0F172A;      /* Dark text only */
  --ink-soft:  #334155;
  --gray-800:  #2A3246;
  --gray-700:  #3D4454;
  --gray-600:  #565E74;
  --gray-500:  #767D91;
  --gray-400:  #9AA3B2;
  --gray-300:  #BFC5D1;
  --gray-200:  #DDE1E8;
  --gray-100:  #F1F3F7;
  --gray-50:   #F8F9FB;
  --white:     #FFFFFF;

  /* Action — Dayrelax Logo Blue */
  --cta:        #2AB0E4;
  --cta-hover:  #1E94C4;
  --cta-deep:   #147AA6;
  --success:    #17B26A;
  --warn:       #F5A524;
  --danger:     #EF4444;

  /* Typography */
  --font-display: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body:    'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing (8px scale) */
  --s-1: 0.25rem; --s-2: 0.5rem; --s-3: 0.75rem;
  --s-4: 1rem;    --s-5: 1.25rem; --s-6: 1.5rem;
  --s-8: 2rem;    --s-10: 2.5rem; --s-12: 3rem;
  --s-16: 4rem;   --s-20: 5rem;   --s-24: 6rem;
  --s-32: 8rem;   --s-40: 10rem;  --s-48: 12rem;

  /* Radius */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-2xl: 40px;
  --r-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(10,15,28,0.04), 0 1px 3px rgba(10,15,28,0.06);
  --shadow-md: 0 4px 6px -1px rgba(10,15,28,0.06), 0 10px 24px -4px rgba(10,15,28,0.08);
  --shadow-lg: 0 12px 24px -6px rgba(10,15,28,0.08), 0 32px 64px -12px rgba(10,15,28,0.12);
  --shadow-xl: 0 24px 48px -12px rgba(10,15,28,0.14), 0 64px 120px -24px rgba(10,15,28,0.22);
  --shadow-glow: 0 0 40px rgba(29,161,242,0.35);

  /* Container */
  --container-max: 1440px;
  --container-pad: clamp(1rem, 4vw, 3rem);

  /* Transitions */
  --t-fast: 150ms cubic-bezier(.4,0,.2,1);
  --t-base: 280ms cubic-bezier(.4,0,.2,1);
  --t-slow: 600ms cubic-bezier(.22,1,.36,1);
}

/* ============================================================
   Base Reset + Typography
   ============================================================ */

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--ink);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: clamp(2rem, 4vw, 3.25rem); font-weight: 700; letter-spacing: -0.03em; }
h3 { font-size: clamp(1.5rem, 2.5vw, 2.25rem); font-weight: 700; }
h4 { font-size: 1.5rem; font-weight: 600; }
h5 { font-size: 1.15rem; font-weight: 600; }

p { color: var(--gray-700); }

a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--accent-500); }

img, svg, video { max-width: 100%; display: block; }

ul, ol { list-style: none; }

button { font-family: inherit; font-size: 1rem; cursor: pointer; border: none; background: none; }

input, select, textarea { font-family: inherit; font-size: 1rem; color: var(--ink); }

.mono { font-family: var(--font-mono); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-500);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

/* ============================================================
   Layout
   ============================================================ */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: clamp(4rem, 10vw, 8rem);
}

.section-dark {
  background: var(--primary-950);
  color: var(--snow);
}
.section-dark h1, .section-dark h2, .section-dark h3,
.section-dark h4, .section-dark h5, .section-dark h6 { color: var(--white); }
.section-dark p { color: rgba(240,247,255,0.7); }

.section-snow {
  background: var(--snow);
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: 14px 28px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--r-full);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--t-base);
  white-space: nowrap;
  letter-spacing: -0.005em;
}

.btn-primary {
  background: var(--ink);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--accent-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--white);
}

.btn-light {
  background: var(--white);
  color: var(--ink);
  border: 1.5px solid var(--gray-200);
}
.btn-light:hover {
  border-color: var(--accent-500);
  background: var(--snow);
  transform: translateY(-2px);
  color: var(--ink);
}

.btn-cta {
  background: var(--cta);
  color: var(--white);
}
.btn-cta:hover {
  background: var(--cta-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(42,176,228,0.4);
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--gray-300);
}
.btn-outline:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.btn-ghost {
  color: var(--ink);
  padding: 8px 16px;
}
.btn-ghost:hover { color: var(--accent-500); }

.btn-marketplace {
  background: var(--white);
  color: var(--ink);
  border: 1.5px solid var(--gray-200);
  flex: 1;
  min-width: 0;
  padding: 14px 20px;
}
.btn-marketplace:hover {
  border-color: var(--accent-500);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-lg { padding: 18px 36px; font-size: 1rem; }
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }

/* Arrow animation */
.btn .arrow { transition: transform var(--t-base); display: inline-block; }
.btn:hover .arrow { transform: translateX(4px); }

/* ============================================================
   Header / Navigation
   ============================================================ */

.top-bar {
  background: var(--ink);
  color: rgba(255,255,255,0.82);
  font-size: 0.8125rem;
  padding: 10px 0;
}
.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-6);
  flex-wrap: wrap;
}
.top-bar a { color: inherit; display: inline-flex; align-items: center; gap: 6px; }
.top-bar a:hover { color: var(--accent-400); }
.top-bar .contacts { display: flex; gap: var(--s-6); align-items: center; }

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--gray-100);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--s-8);
}
.logo-img { height: 36px; width: auto; }

.nav-primary {
  display: flex;
  gap: var(--s-8);
  list-style: none;
  flex: 1;
  justify-content: center;
}
.nav-primary a {
  font-weight: 500;
  font-size: 0.95rem;
  padding: 10px 4px;
  position: relative;
  color: var(--ink-soft);
}
.nav-primary a:hover { color: var(--accent-500); }
.nav-primary a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 4px;
  height: 2px;
  background: var(--accent-500);
  transform: scaleX(0);
  transition: transform var(--t-base);
  transform-origin: left;
}
.nav-primary a:hover::after { transform: scaleX(1); }

.header-actions { display: flex; gap: var(--s-3); align-items: center; }

/* ============================================================
   Hero
   ============================================================ */

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, var(--ice) 0%, var(--snow) 55%, var(--mist) 100%);
  color: var(--ink);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -10%; right: -5%;
  width: 60%; height: 70%;
  background: radial-gradient(circle, rgba(29,161,242,0.18) 0%, transparent 60%);
  filter: blur(60px);
  animation: float 14s ease-in-out infinite;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -20%; left: -5%;
  width: 50%; height: 60%;
  background: radial-gradient(circle, rgba(186,230,253,0.35) 0%, transparent 65%);
  filter: blur(80px);
  animation: float 16s ease-in-out -3s infinite;
}

@keyframes float {
  0%,100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(40px,-30px) scale(1.1); }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--s-16);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.02;
  color: var(--ink);
  letter-spacing: -0.04em;
  margin-bottom: var(--s-6);
}
.hero-title .gradient {
  background: linear-gradient(135deg, var(--accent-600), var(--primary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 520px;
  margin-bottom: var(--s-10);
}

.hero-cta-row { display: flex; gap: var(--s-3); flex-wrap: wrap; }

.hero-visual {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--r-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.hero-visual img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.hero-badge {
  position: absolute;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--r-lg);
  padding: var(--s-4) var(--s-5);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 3;
}
.hero-badge-temp { top: 24px; left: 24px; }
.hero-badge-sound { bottom: 24px; right: 24px; }
.hero-badge strong { display: block; font-size: 1.75rem; font-weight: 700; font-family: var(--font-mono); color: var(--accent-300); line-height: 1; margin-top: 4px; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--gray-400);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.scroll-indicator::after {
  content: "";
  width: 1px; height: 32px;
  background: linear-gradient(to bottom, currentColor, transparent);
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 0.3; height: 20px; }
  50% { opacity: 0.9; height: 40px; }
}

/* ============================================================
   Category Cards
   ============================================================ */

.cat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-6);
}

.cat-card {
  position: relative;
  aspect-ratio: 5/6;
  border-radius: var(--r-2xl);
  overflow: hidden;
  cursor: pointer;
  isolation: isolate;
}
.cat-card img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.cat-card::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(5,11,26,0.9) 0%, rgba(5,11,26,0.4) 40%, transparent 70%);
  z-index: 1;
}
.cat-card:hover img { transform: scale(1.05); }
.cat-card-content {
  position: absolute;
  bottom: var(--s-10);
  left: var(--s-10);
  right: var(--s-10);
  z-index: 2;
  color: var(--white);
}
.cat-card h3 { color: var(--white); margin-bottom: var(--s-3); font-size: 2.25rem; }
.cat-card p { color: rgba(255,255,255,0.85); margin-bottom: var(--s-6); max-width: 360px; }
.cat-card-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  color: var(--accent-300);
  font-weight: 600;
  font-size: 0.95rem;
}

/* ============================================================
   Stats Strip
   ============================================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}
.stat-item {
  padding: var(--s-10) var(--s-6);
  text-align: left;
  border-right: 1px solid var(--gray-200);
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1;
  letter-spacing: -0.04em;
}
.stat-number .unit { color: var(--accent-500); font-size: 0.5em; vertical-align: super; margin-left: 4px; }
.stat-label { color: var(--gray-600); font-size: 0.9rem; margin-top: var(--s-3); }

/* ============================================================
   Feature Grid (Tech)
   ============================================================ */

.tech-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-16);
  align-items: center;
  margin-bottom: var(--s-16);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--s-4);
}

.feature-card {
  padding: var(--s-8);
  background: var(--white);
  border-radius: var(--r-xl);
  border: 1px solid var(--gray-100);
  transition: all var(--t-base);
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  border-color: var(--accent-300);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.feature-card-icon {
  width: 56px; height: 56px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--accent-200), var(--accent-400));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-900);
  margin-bottom: var(--s-5);
  font-size: 1.5rem;
}
.feature-card h4 { margin-bottom: var(--s-2); }
.feature-card p { font-size: 0.9rem; color: var(--ink-soft); }

/* Usage scenario card (new) */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-6);
  margin-top: var(--s-10);
  align-items: stretch;
}
.scenario-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 280px;
  padding: var(--s-10) var(--s-8) var(--s-8);
  background: var(--white);
  border-radius: var(--r-2xl, 20px);
  border: 1px solid var(--gray-100);
  box-shadow: 0 1px 2px rgba(15,23,42,0.04);
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
  cursor: pointer;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}
.scenario-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: inset 0 0 0 0 var(--accent-400);
  transition: box-shadow var(--t-base);
}
.scenario-card:hover {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow:
    0 1px 2px rgba(15,23,42,0.04),
    0 18px 40px -12px rgba(29,161,242,0.22),
    0 8px 24px -8px rgba(15,23,42,0.08);
}
.scenario-card:hover::after {
  box-shadow: inset 0 0 0 1.5px var(--accent-400);
}
.scenario-card:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 3px rgba(29,161,242,0.25),
    0 18px 40px -12px rgba(29,161,242,0.22);
}
.scenario-card-icon {
  width: 64px;
  height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(29,161,242,0.12) 0%, rgba(29,161,242,0.04) 100%);
  color: var(--accent-600);
  margin-bottom: var(--s-6);
  transition: transform var(--t-base), background var(--t-base);
}
.scenario-card:hover .scenario-card-icon {
  transform: scale(1.06);
  background: linear-gradient(135deg, rgba(29,161,242,0.22) 0%, rgba(29,161,242,0.08) 100%);
}
.scenario-card h4 {
  color: var(--ink);
  margin: 0 0 var(--s-3);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.scenario-card p {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.55;
  margin: 0;
}
.scenario-card-arrow {
  margin-top: auto;
  padding-top: var(--s-6);
  font-size: 1.25rem;
  color: var(--accent-600);
  align-self: flex-start;
  transition: transform var(--t-base);
}
.scenario-card:hover .scenario-card-arrow {
  transform: translateX(4px);
}
.scenario-card.is-featured {
  border-color: transparent;
  background:
    linear-gradient(var(--white), var(--white)) padding-box,
    linear-gradient(135deg, var(--accent-400), var(--accent-600)) border-box;
  border: 1.5px solid transparent;
  box-shadow:
    0 2px 4px rgba(15,23,42,0.04),
    0 20px 50px -15px rgba(29,161,242,0.28),
    0 10px 30px -10px rgba(15,23,42,0.08);
  transform: translateY(-4px);
}
.scenario-card.is-featured:hover {
  transform: translateY(-8px);
  box-shadow:
    0 2px 4px rgba(15,23,42,0.04),
    0 28px 60px -15px rgba(29,161,242,0.35),
    0 14px 40px -10px rgba(15,23,42,0.1);
}
.scenario-card-badge {
  position: absolute;
  top: var(--s-4);
  right: var(--s-4);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-700, var(--accent-600));
  background: rgba(29,161,242,0.1);
  padding: 4px 10px;
  border-radius: 999px;
}
@media (max-width: 960px) {
  .scenario-grid { grid-template-columns: 1fr; gap: var(--s-4); }
  .scenario-card { min-height: 0; padding: var(--s-8); }
  .scenario-card.is-featured { transform: none; }
}

/* ============================================================
   Product Cards (Grid)
   ============================================================ */

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--s-5);
}

.product-card {
  background: var(--white);
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--gray-100);
  transition: all var(--t-base);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: var(--accent-300);
}
.product-card-img {
  background:
    url("../images/logo-siluet.jpg") center/85% no-repeat,
    linear-gradient(135deg, var(--gray-50), var(--snow));
  background-blend-mode: multiply;
  padding: var(--s-8);
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.product-card-img img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform var(--t-base);
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 12px 24px rgba(15,23,42,0.1));
}
.product-card:hover .product-card-img img { transform: scale(1.05) rotate(-1deg); }

.product-card-body {
  padding: var(--s-6);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.product-card-series {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent-500);
}
.product-card h5 { font-size: 1.15rem; color: var(--ink); }

.product-card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-top: auto;
  padding-top: var(--s-4);
}
.spec-chip {
  background: var(--gray-50);
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--r-full);
  border: 1px solid var(--gray-100);
  font-family: var(--font-mono);
}
.spec-chip.accent { background: var(--accent-500); color: var(--white); border-color: var(--accent-500); }

/* ============================================================
   BTU Calculator
   ============================================================ */

.btu-card {
  background: linear-gradient(135deg, var(--primary-950), var(--primary-800));
  border-radius: var(--r-2xl);
  padding: clamp(2rem, 5vw, 4rem);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.btu-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(29,161,242,0.25) 0%, transparent 50%);
}
.btu-card-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-12);
  align-items: center;
}
.btu-form label {
  display: block;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--s-2);
}
.btu-input-row { display: flex; gap: var(--s-3); align-items: center; }
.btu-input {
  flex: 1;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--r-md);
  padding: 18px 20px;
  color: var(--white);
  font-size: 1.15rem;
  font-family: var(--font-mono);
  backdrop-filter: blur(10px);
  transition: all var(--t-base);
}
.btu-input:focus {
  outline: none;
  border-color: var(--accent-400);
  background: rgba(255,255,255,0.15);
  box-shadow: 0 0 0 4px rgba(29,161,242,0.15);
}
.btu-suggestion {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  backdrop-filter: blur(10px);
}
.btu-suggestion-label { font-size: 0.75rem; color: rgba(255,255,255,0.6); letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: var(--s-3); }
.btu-suggestion h4 { color: var(--white); margin-bottom: var(--s-2); font-size: 1.5rem; }
.btu-suggestion p { color: rgba(255,255,255,0.75); font-size: 0.875rem; margin-bottom: var(--s-4); }

/* ============================================================
   Dealer Finder / Map Teaser
   ============================================================ */

.dealer-card {
  background: var(--snow);
  border-radius: var(--r-2xl);
  padding: clamp(2rem, 5vw, 4rem);
  position: relative;
  overflow: hidden;
}
.dealer-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--s-10);
  align-items: center;
}
.dealer-map {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #D6E4F7, #B8D4F1);
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
}
.dealer-map svg { width: 100%; height: 100%; }

.pin {
  position: absolute;
  width: 14px; height: 14px;
  background: var(--cta);
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(42,176,228,0.25), var(--shadow-md);
  animation: pulse-pin 2s ease-in-out infinite;
}
@keyframes pulse-pin {
  0%,100% { box-shadow: 0 0 0 6px rgba(42,176,228,0.25), var(--shadow-md); }
  50% { box-shadow: 0 0 0 14px rgba(42,176,228,0), var(--shadow-md); }
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  background: var(--primary-950);
  color: rgba(240,247,255,0.7);
  padding-block: var(--s-16) var(--s-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: var(--s-10);
  margin-bottom: var(--s-16);
}
.footer h5 {
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--s-5);
}
.footer ul li { margin-bottom: var(--s-3); }
.footer a { color: rgba(240,247,255,0.7); font-size: 0.9rem; }
.footer a:hover { color: var(--accent-400); }

.footer-brand p {
  color: rgba(240,247,255,0.7);
  font-size: 0.9rem;
  margin-top: var(--s-4);
  max-width: 280px;
}

.footer-bottom {
  padding-top: var(--s-8);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-4);
  font-size: 0.8125rem;
}
.footer-bottom-links { display: flex; gap: var(--s-5); }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--s-10); }
  .hero-visual { aspect-ratio: 4/3; max-width: 520px; margin: 0 auto; }
  .cat-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(1), .stat-item:nth-child(2) { border-bottom: 1px solid var(--gray-200); }
  .btu-card-inner { grid-template-columns: 1fr; }
  .dealer-inner { grid-template-columns: 1fr; }
  .tech-hero { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-primary { display: none; }
}

@media (max-width: 560px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--gray-200); }
  .stat-item:last-child { border-bottom: none; }
  .top-bar .contacts { gap: var(--s-4); }
  .top-bar-inner { justify-content: center; font-size: 0.75rem; }
  .header-actions .btn-outline { display: none; }
}

/* ============================================================
   Utilities
   ============================================================ */

.text-center { text-align: center; }
.text-accent { color: var(--accent-500); }
.text-white { color: var(--white); }
.mb-2 { margin-bottom: var(--s-2); }
.mb-4 { margin-bottom: var(--s-4); }
.mb-6 { margin-bottom: var(--s-6); }
.mb-8 { margin-bottom: var(--s-8); }
.mb-12 { margin-bottom: var(--s-12); }
.mx-auto { margin-inline: auto; }
.max-w-2xl { max-width: 720px; }
.max-w-4xl { max-width: 980px; }

.divider-vertical {
  height: 24px;
  width: 1px;
  background: rgba(255,255,255,0.2);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.pill-dot::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-dot 1.5s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.pill-success { background: rgba(23,178,106,0.12); color: var(--success); }
.pill-accent { background: rgba(29,161,242,0.12); color: var(--accent-600); }

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}