/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #1a1a2e;
  background: #ffffff;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.25;
  font-weight: 700;
  color: #0d1b2a;
}

h1 { font-size: clamp(1.9rem, 4.5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); }
h4 { font-size: 1.05rem; }

p {
  margin-bottom: 1rem;
  color: #374151;
}

strong {
  font-weight: 600;
  color: #1a1a2e;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  line-height: 1.2;
  white-space: nowrap;
}

.btn i {
  font-size: 0.9em;
}

.btn-primary {
  background: linear-gradient(135deg, #e8530e, #d4410c);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(232, 83, 14, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #d4410c, #b8370a);
  box-shadow: 0 6px 25px rgba(232, 83, 14, 0.5);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, #e8530e, #d4410c);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(232, 83, 14, 0.35);
}

.btn-accent:hover {
  background: linear-gradient(135deg, #d4410c, #b8370a);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(232, 83, 14, 0.5);
}

.btn-white {
  background: #ffffff;
  color: #e8530e;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn-white:hover {
  background: #fff5f0;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.btn-lg {
  font-size: 1.15rem;
  padding: 18px 40px;
}

.btn-xl {
  font-size: 1.35rem;
  padding: 20px 50px;
}

.btn-sm {
  font-size: 0.9rem;
  padding: 10px 24px;
}

.btn-block {
  display: flex;
  justify-content: center;
  width: 100%;
}

/* ============================================
   TOP BAR
   ============================================ */
.top-bar {
  background: #0d1b2a;
  color: #ffffff;
  font-size: 0.82rem;
  padding: 8px 0;
  position: relative;
  z-index: 1001;
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0.9;
}

.top-bar-left i {
  color: #e8530e;
  margin-right: 4px;
}

.top-bar-divider {
  width: 1px;
  height: 14px;
  background: rgba(255,255,255,0.25);
  margin: 0 8px;
}

.top-bar-phone {
  color: #ffffff;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}

.top-bar-phone:hover {
  color: #e8530e;
}

.top-bar-phone i {
  color: #e8530e;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  background: #ffffff;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo img {
  width: 200px;
}

.logo-icon {
  font-size: 1.8rem;
  color: #e8530e;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-primary {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: #0d1b2a;
}

.logo-secondary {
  font-size: 0.75rem;
  color: #6b7280;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 8px 14px;
  font-size: 0.88rem;
  font-weight: 500;
  color: #374151;
  border-radius: 8px;
  transition: all 0.2s;
}

.nav-link:hover {
  color: #e8530e;
  background: #fff5f0;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  background: #e8530e;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.88rem;
  border-radius: 50px;
  margin-left: 10px;
  transition: all 0.3s;
}

.nav-cta:hover {
  background: #d4410c;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(232, 83, 14, 0.35);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1002;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2.5px;
  background: #0d1b2a;
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5.5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5.5px);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(13, 27, 42, 0.97);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s ease;
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transform: translateY(20px);
  transition: transform 0.35s ease;
}

.mobile-nav-overlay.active .mobile-nav {
  transform: translateY(0);
}

.mobile-nav-link {
  color: #ffffff;
  font-size: 1.3rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 8px;
  transition: background 0.2s;
}

.mobile-nav-link:hover {
  background: rgba(232, 83, 14, 0.2);
  color: #e8530e;
}

.mobile-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 16px 36px;
  background: #e8530e;
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 700;
  border-radius: 50px;
  transition: all 0.3s;
}

.mobile-nav-cta:hover {
  background: #d4410c;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, #0d1b2a 0%, #1b2d45 50%, #162033 100%);
  padding: 80px 0 90px;
  overflow: hidden;
}

.hero-bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(ellipse at 20% 50%, rgba(232, 83, 14, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to top, #ffffff, transparent);
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232, 83, 14, 0.15);
  color: #f0a070;
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid rgba(232, 83, 14, 0.25);
}

.hero-badge i {
  color: #e8530e;
}

.hero h1 {
  color: #ffffff;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-sub {
  color: #b0bec5;
  font-size: 1.12rem;
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 540px;
}

.hero-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #d1d5db;
  font-size: 0.95rem;
  font-weight: 500;
}

.hero-feature i {
  color: #34d399;
  font-size: 1rem;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}

.hero-cta-note {
  font-size: 0.82rem;
  color: #6b7280;
  margin-bottom: 0;
  padding-left: 4px;
}

/* Hero Card */
.hero-card {
  background: #ffffff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.hero-card-header {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: #ffffff;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
}

.hero-card-header i {
  font-size: 1.2rem;
  animation: pulse-icon 2s ease-in-out infinite;
}

@keyframes pulse-icon {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.1); }
}

.hero-card-body {
  padding: 28px 24px;
}

.hero-card-body p {
  font-size: 0.95rem;
  color: #4b5563;
  margin-bottom: 24px;
}

.hero-card-steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 10px;
}

.hero-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1;
  text-align: center;
}

.hero-step-num {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #e8530e, #d4410c);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
}

.hero-step span {
  font-size: 0.82rem;
  font-weight: 600;
  color: #374151;
}

/* ============================================
   TRUST BAR
   ============================================ */
.trust-bar {
  background: #f8fafc;
  padding: 28px 0;
  border-bottom: 1px solid #e5e7eb;
  position: relative;
  z-index: 3;
}

.trust-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 0;
}

.trust-item i {
  font-size: 1.6rem;
  color: #e8530e;
  flex-shrink: 0;
}

.trust-item strong {
  display: block;
  font-size: 0.92rem;
  font-weight: 700;
  color: #0d1b2a;
  line-height: 1.3;
}

.trust-item span {
  display: block;
  font-size: 0.78rem;
  color: #6b7280;
  line-height: 1.3;
}

/* ============================================
   SECTION COMMON STYLES
   ============================================ */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #e8530e;
  margin-bottom: 12px;
}

.section-label i {
  font-size: 0.85em;
}

.section-label-light {
  color: #f0a070;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-intro {
  font-size: 1.05rem;
  color: #4b5563;
  line-height: 1.75;
  margin-bottom: 0;
}

/* ============================================
   SIGNS SECTION
   ============================================ */
.section-signs {
  background: #ffffff;
}

.signs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.sign-card {
  background: #f8fafc;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s ease;
  position: relative;
}

.sign-card:hover {
  border-color: #e8530e;
  box-shadow: 0 8px 30px rgba(232, 83, 14, 0.08);
  transform: translateY(-3px);
}

.sign-card-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #fff0e6, #ffe0cc);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.sign-card-icon i {
  font-size: 1.3rem;
  color: #e8530e;
}

.sign-card h3 {
  margin-bottom: 12px;
  font-size: 1.15rem;
}

.sign-card p {
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 10px;
}

.sign-card p:last-child {
  margin-bottom: 0;
}

.sign-card ul {
  margin: 10px 0 0;
  padding: 0;
}

.sign-card ul li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: #374151;
  margin-bottom: 6px;
  line-height: 1.6;
}

.sign-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: #e8530e;
  border-radius: 50%;
}

/* Section CTA Bar */
.section-cta-bar {
  background: linear-gradient(135deg, #0d1b2a, #1b2d45);
  border-radius: 16px;
  padding: 32px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.section-cta-bar p {
  color: #d1d5db;
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 0;
}

/* ============================================
   EMERGENCY SECTION
   ============================================ */
.section-emergency {
  background: linear-gradient(135deg, #7f1d1d, #991b1b, #b91c1c);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.section-emergency::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(255,255,255,0.04), transparent 60%);
  pointer-events: none;
}

.emergency-layout {
  position: relative;
  z-index: 1;
}

.emergency-content h2 {
  color: #ffffff;
  margin-bottom: 16px;
}

.emergency-content > p {
  color: #fca5a5;
  font-size: 1.05rem;
  margin-bottom: 36px;
}

.emergency-steps {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.e-step {
  display: flex;
  gap: 20px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 28px;
  backdrop-filter: blur(10px);
  transition: background 0.3s;
}

.e-step:hover {
  background: rgba(255, 255, 255, 0.12);
}

.e-step-number {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: #ffffff;
  color: #b91c1c;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
}

.e-step-content h3 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.e-step-content p {
  color: #fecaca;
  font-size: 0.92rem;
  margin-bottom: 6px;
  line-height: 1.65;
}

.e-step-content p:last-child {
  margin-bottom: 0;
}

.e-step-content a {
  color: #ffffff;
  text-decoration: underline;
  font-weight: 700;
}

/* ============================================
   HARD WATER SECTION
   ============================================ */
.section-hardwater {
  background: #f0f4f8;
}

.hardwater-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.hw-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 32px;
  border: 1px solid #e2e8f0;
  transition: all 0.3s;
}

.hw-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.hw-card-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.hw-card-icon i {
  font-size: 1.2rem;
  color: #2563eb;
}

.hw-card h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.hw-card p {
  font-size: 0.92rem;
  line-height: 1.7;
}

.hw-card-highlight {
  background: linear-gradient(135deg, #0d1b2a, #1b2d45);
  border-color: transparent;
  grid-column: 1 / -1;
}

.hw-card-highlight h3 {
  color: #ffffff;
}

.hw-card-highlight p {
  color: #b0bec5;
}

.hw-card-highlight .hw-card-icon {
  background: linear-gradient(135deg, rgba(232, 83, 14, 0.2), rgba(232, 83, 14, 0.3));
}

.hw-card-highlight .hw-card-icon i {
  color: #e8530e;
}

.hw-card-highlight:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.section-services {
  background: #ffffff;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: #f8fafc;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
}

.service-card:hover {
  border-color: #e8530e;
  box-shadow: 0 8px 30px rgba(232, 83, 14, 0.08);
  transform: translateY(-3px);
}

.service-card-featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #fff8f3, #fff0e6);
  border-color: #fcd5b8;
}

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #e8530e, #d4410c);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-icon i {
  font-size: 1.4rem;
  color: #ffffff;
}

.service-card h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.service-card p {
  font-size: 0.92rem;
  line-height: 1.7;
}

.service-parts {
  margin-top: 20px;
}

.service-parts h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: #4b5563;
  margin-bottom: 12px;
}

.parts-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
}

.parts-list span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: #374151;
}

.parts-list span i {
  color: #34d399;
  font-size: 0.75rem;
}

.service-card ul {
  margin-top: 12px;
}

.service-card ul li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: #374151;
  margin-bottom: 6px;
  line-height: 1.6;
}

.service-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: #e8530e;
  border-radius: 50%;
}

/* ============================================
   PROBLEMS SECTION
   ============================================ */
.section-problems {
  background: #f0f4f8;
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.problem-card {
  background: #ffffff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  transition: all 0.3s;
}

.problem-card:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.07);
  transform: translateY(-2px);
}

.problem-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
}

.problem-header i {
  font-size: 1.2rem;
  color: #e8530e;
}

.problem-header h3 {
  font-size: 1rem;
  margin: 0;
}

.problem-details {
  padding: 20px 24px;
}

.problem-row {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 0.88rem;
  line-height: 1.6;
}

.problem-row:last-child {
  margin-bottom: 0;
}

.problem-row strong {
  flex-shrink: 0;
  color: #0d1b2a;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  min-width: 110px;
}

.problem-row span {
  color: #4b5563;
}

/* ============================================
   COMPARE SECTION (Tank vs Tankless)
   ============================================ */
.section-compare {
  background: #ffffff;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 36px;
}

.compare-card {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  transition: all 0.3s;
}

.compare-card:hover {
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.07);
  transform: translateY(-3px);
}

.compare-card-header {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.compare-card-header i {
  font-size: 1.8rem;
  opacity: 0.9;
}

.compare-card-header h3 {
  margin: 0;
  font-size: 1.2rem;
}

.compare-card-header p {
  font-size: 0.88rem;
  margin-bottom: 0;
  opacity: 0.85;
}

.compare-tank {
  background: linear-gradient(135deg, #1e3a5f, #0d1b2a);
  color: #ffffff;
}

.compare-tank h3 { color: #ffffff; }
.compare-tank p { color: #b0bec5; }

.compare-tankless {
  background: linear-gradient(135deg, #e8530e, #b8370a);
  color: #ffffff;
}

.compare-tankless h3 { color: #ffffff; }
.compare-tankless p { color: #fed7aa; }

.compare-card-body {
  padding: 28px;
  background: #ffffff;
}

.compare-card-body ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 14px;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #374151;
}

.compare-card-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: #e8530e;
  border-radius: 50%;
}

.compare-card-body ul li:last-child {
  margin-bottom: 0;
}

.compare-note {
  display: flex;
  gap: 24px;
  background: linear-gradient(135deg, #fffbeb, #fef3c7);
  border: 1px solid #fde68a;
  border-radius: 16px;
  padding: 32px;
}

.compare-note-icon {
  flex-shrink: 0;
}

.compare-note-icon i {
  font-size: 1.8rem;
  color: #d97706;
}

.compare-note-content h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.compare-note-content p {
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 8px;
}

.compare-note-content p:last-child {
  margin-bottom: 0;
}

.compare-note-content a {
  color: #e8530e;
  font-weight: 700;
}

/* ============================================
   FUEL TYPE SECTION (Gas vs Electric)
   ============================================ */
.section-fuel {
  background: #f0f4f8;
}

.fuel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.fuel-card {
  background: #ffffff;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  transition: all 0.3s;
}

.fuel-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.fuel-card-header {
  padding: 24px 28px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.fuel-card-header i {
  font-size: 1.5rem;
}

.fuel-card-header h3 {
  margin: 0;
  font-size: 1.15rem;
}

.fuel-electric {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
}

.fuel-electric h3 { color: #ffffff; }

.fuel-gas {
  background: linear-gradient(135deg, #e8530e, #d4410c);
  color: #ffffff;
}

.fuel-gas h3 { color: #ffffff; }

.fuel-card-body {
  padding: 28px;
}

.fuel-card-body p {
  font-size: 0.92rem;
  margin-bottom: 16px;
}

.fuel-card-body h4 {
  font-size: 0.95rem;
  margin-bottom: 12px;
  color: #0d1b2a;
}

.fuel-card-body ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #374151;
}

.fuel-card-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: #e8530e;
  border-radius: 50%;
}

/* Safety Callout */
.safety-callout {
  display: flex;
  gap: 20px;
  background: linear-gradient(135deg, #fef2f2, #fee2e2);
  border: 2px solid #fca5a5;
  border-radius: 16px;
  padding: 28px 32px;
}

.safety-callout-icon i {
  font-size: 2rem;
  color: #dc2626;
}

.safety-callout-content h3 {
  color: #991b1b;
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.safety-callout-content p {
  font-size: 0.92rem;
  color: #7f1d1d;
  line-height: 1.7;
  margin-bottom: 0;
}

/* ============================================
   DECISION SECTION (Repair vs Replace)
   ============================================ */
.section-decision {
  background: #ffffff;
}

.decision-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 36px;
}

.decision-card {
  border-radius: 16px;
  padding: 36px;
  border: 2px solid;
}

.decision-repair {
  border-color: #34d399;
  background: linear-gradient(to bottom, #ecfdf5, #ffffff);
}

.decision-replace {
  border-color: #e8530e;
  background: linear-gradient(to bottom, #fff7ed, #ffffff);
}

.decision-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.decision-card-header i {
  font-size: 1.4rem;
}

.decision-repair .decision-card-header i {
  color: #059669;
}

.decision-replace .decision-card-header i {
  color: #e8530e;
}

.decision-card-header h3 {
  font-size: 1.2rem;
  margin: 0;
}

.decision-card ul li {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #374151;
}

.decision-card ul li:last-child {
  margin-bottom: 0;
}

.decision-card ul li i {
  flex-shrink: 0;
  margin-top: 3px;
  font-size: 0.85rem;
}

.decision-repair ul li i {
  color: #34d399;
}

.decision-replace ul li i {
  color: #e8530e;
}

/* Age Check Box */
.age-check-box {
  display: flex;
  gap: 24px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 32px;
}

.age-check-icon i {
  font-size: 2rem;
  color: #2563eb;
}

.age-check-content h3 {
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.age-check-content p {
  font-size: 0.92rem;
  line-height: 1.7;
}

.age-check-content ul {
  margin: 12px 0;
}

.age-check-content ul li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: #374151;
  line-height: 1.6;
}

.age-check-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: #2563eb;
  border-radius: 50%;
}

.age-check-content a {
  color: #e8530e;
  font-weight: 700;
}

/* ============================================
   SIZING SECTION
   ============================================ */
.section-sizing {
  background: #f0f4f8;
}

.sizing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.sizing-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 32px;
}

.sizing-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.sizing-card h3 i {
  color: #e8530e;
}

.sizing-table {
  margin-bottom: 16px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
}

.sizing-row {
  display: flex;
  justify-content: space-between;
  padding: 14px 18px;
  font-size: 0.9rem;
  border-bottom: 1px solid #e2e8f0;
}

.sizing-row:last-child {
  border-bottom: none;
}

.sizing-row-header {
  background: #0d1b2a;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sizing-row span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sizing-row i {
  color: #e8530e;
  font-size: 0.85rem;
}

.sizing-card p {
  font-size: 0.92rem;
  line-height: 1.7;
}

.sizing-card ul {
  margin: 12px 0;
}

.sizing-card ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: #374151;
  line-height: 1.6;
}

.sizing-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: #e8530e;
  border-radius: 50%;
}

/* ============================================
   WEATHER SECTION
   ============================================ */
.section-weather {
  background: #ffffff;
}

.weather-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.weather-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
}

.weather-card:hover {
  border-color: #e8530e;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.weather-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.weather-card:first-child .weather-card-icon {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
}

.weather-card:first-child .weather-card-icon i {
  font-size: 1.3rem;
  color: #d97706;
}

.weather-card:last-child .weather-card-icon {
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
}

.weather-card:last-child .weather-card-icon i {
  font-size: 1.3rem;
  color: #2563eb;
}

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

.weather-card p {
  font-size: 0.92rem;
  line-height: 1.7;
}

.weather-tip {
  display: flex;
  gap: 12px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  padding: 16px;
  margin-top: 16px;
}

.weather-tip i {
  color: #2563eb;
  flex-shrink: 0;
  margin-top: 2px;
}

.weather-tip p {
  font-size: 0.88rem;
  margin-bottom: 0;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.section-faq {
  background: #f0f4f8;
}

.faq-grid {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: #cbd5e1;
}

.faq-item[open] {
  border-color: #e8530e;
  box-shadow: 0 4px 15px rgba(232, 83, 14, 0.08);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  color: #0d1b2a;
  list-style: none;
  transition: color 0.2s;
  gap: 16px;
}

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

.faq-question::marker {
  content: '';
}

.faq-question:hover {
  color: #e8530e;
}

.faq-icon {
  font-size: 0.8rem;
  color: #9ca3af;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
  color: #e8530e;
}

.faq-answer {
  padding: 0 24px 24px;
  border-top: 1px solid #f3f4f6;
}

.faq-answer p {
  font-size: 0.92rem;
  line-height: 1.75;
  padding-top: 16px;
  margin-bottom: 0;
}

.faq-answer a {
  color: #e8530e;
  font-weight: 600;
}

/* ============================================
   SERVICE AREA SECTION
   ============================================ */
.section-area {
  background: #ffffff;
}

.area-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 28px;
}

.area-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #374151;
  transition: all 0.2s;
}

.area-tag:hover {
  border-color: #e8530e;
  background: #fff5f0;
  color: #e8530e;
}

.area-tag i {
  font-size: 0.75rem;
  color: #e8530e;
}

.area-note {
  text-align: center;
  font-size: 1rem;
  color: #4b5563;
  max-width: 700px;
  margin: 0 auto;
}

/* ============================================
   FINAL CTA SECTION
   ============================================ */
.section-final-cta {
  background: linear-gradient(135deg, #0d1b2a 0%, #1b2d45 50%, #0d1b2a 100%);
  text-align: center;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.section-final-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 30% 50%, rgba(232, 83, 14, 0.1), transparent 60%),
    radial-gradient(ellipse at 70% 50%, rgba(59, 130, 246, 0.06), transparent 50%);
  pointer-events: none;
}

.final-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 620px;
  margin: 0 auto;
}

.final-cta-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #e8530e, #d4410c);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  animation: pulse-cta 2.5s ease-in-out infinite;
}

@keyframes pulse-cta {
  0%, 100% { box-shadow: 0 0 0 0 rgba(232, 83, 14, 0.4); }
  50% { box-shadow: 0 0 0 20px rgba(232, 83, 14, 0); }
}

.final-cta-icon i {
  font-size: 2rem;
  color: #ffffff;
}

.final-cta-inner h2 {
  color: #ffffff;
  margin-bottom: 16px;
}

.final-cta-inner > p {
  color: #b0bec5;
  font-size: 1.08rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.final-cta-features {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.final-cta-features span {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #d1d5db;
  font-size: 0.92rem;
  font-weight: 500;
}

.final-cta-features span i {
  color: #34d399;
}

.final-cta-note {
  color: #6b7280;
  font-size: 0.92rem;
  margin-top: 16px;
  margin-bottom: 0;
  font-weight: 500;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: #050d18;
  color: #9ca3af;
  padding: 60px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
  margin-bottom: 16px;
}

.footer-logo .logo-icon {
  color: #e8530e;
}

.footer-logo .logo-primary {
  color: #ffffff;
}

.footer-logo .logo-secondary {
  color: #6b7280;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: #6b7280;
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links a,
.footer-services a {
  display: block;
  font-size: 0.88rem;
  color: #6b7280;
  padding: 5px 0;
  transition: all 0.2s;
}

.footer-links a:hover,
.footer-services a:hover {
  color: #e8530e;
  padding-left: 4px;
}

.footer-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #e8530e !important;
  margin-bottom: 14px;
}

.footer-phone:hover {
  color: #d4410c !important;
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: #6b7280;
  margin-bottom: 8px;
}

.footer-contact p i {
  color: #e8530e;
  width: 16px;
  text-align: center;
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: #4b5563;
  margin-bottom: 0;
}

/* ============================================
   STICKY CTA BUTTON
   ============================================ */
.sticky-cta {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 998;
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #e8530e, #d4410c);
  color: #ffffff;
  padding: 16px 28px;
  border-radius: 60px;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 8px 30px rgba(232, 83, 14, 0.45);
  transition: all 0.3s ease;
  animation: sticky-bounce 3s ease-in-out infinite;
}

.sticky-cta:hover {
  background: linear-gradient(135deg, #d4410c, #b8370a);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 40px rgba(232, 83, 14, 0.55);
}

@keyframes sticky-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.sticky-cta:hover {
  animation: none;
  transform: translateY(-3px) scale(1.03);
}

.sticky-cta i {
  font-size: 1.1rem;
  animation: ring 2.5s ease-in-out infinite;
}

@keyframes ring {
  0%, 80%, 100% { transform: rotate(0); }
  5% { transform: rotate(15deg); }
  10% { transform: rotate(-15deg); }
  15% { transform: rotate(12deg); }
  20% { transform: rotate(-12deg); }
  25% { transform: rotate(0); }
}

/* ============================================
   RESPONSIVE - TABLET (max-width: 1024px)
   ============================================ */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual {
    max-width: 480px;
    margin: 0 auto;
  }

  .trust-items {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .signs-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-card-featured {
    grid-column: auto;
  }

  .problems-grid {
    grid-template-columns: 1fr;
  }

  .compare-grid {
    grid-template-columns: 1fr;
  }

  .fuel-grid {
    grid-template-columns: 1fr;
  }

  .decision-grid {
    grid-template-columns: 1fr;
  }

  .hardwater-grid {
    grid-template-columns: 1fr;
  }

  .hw-card-highlight {
    grid-column: auto;
  }

  .sizing-grid {
    grid-template-columns: 1fr;
  }

  .weather-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .main-nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .section-cta-bar {
    flex-direction: column;
    text-align: center;
  }

  .parts-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   RESPONSIVE - MOBILE (max-width: 640px)
   ============================================ */
@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 60px 0;
  }

  .top-bar-left {
    display: none;
  }

  .top-bar-inner {
    justify-content: center;
  }

  .header-inner {
    height: 64px;
  }

  .logo-primary {
    font-size: 1rem;
  }

  .logo-icon {
    font-size: 1.5rem;
  }

  .hero {
    padding: 50px 0 70px;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .hero-sub {
    font-size: 1rem;
  }

  .hero-card-steps {
    flex-direction: column;
    gap: 14px;
  }

  .hero-step {
    flex-direction: row;
    justify-content: flex-start;
    gap: 12px;
  }

  .trust-items {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .trust-item {
    background: #f1f5f9;
    padding: 14px 18px;
    border-radius: 12px;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .section-header h2 {
    font-size: 1.4rem;
  }

  .sign-card {
    padding: 24px;
  }

  .e-step {
    flex-direction: column;
    gap: 14px;
    padding: 22px;
  }

  .compare-note {
    flex-direction: column;
    gap: 16px;
  }

  .safety-callout {
    flex-direction: column;
    gap: 14px;
  }

  .age-check-box {
    flex-direction: column;
    gap: 16px;
  }

  .section-cta-bar {
    padding: 24px;
    border-radius: 12px;
  }

  .btn-lg {
    font-size: 1rem;
    padding: 16px 32px;
  }

  .btn-xl {
    font-size: 1.1rem;
    padding: 18px 36px;
  }

  .section-final-cta {
    padding: 70px 0;
  }

  .final-cta-features {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .sticky-cta {
    bottom: 18px;
    right: 18px;
    padding: 14px 22px;
    font-size: 0.9rem;
  }

  .sticky-cta-text {
    display: inline;
  }

  .problem-row {
    flex-direction: column;
    gap: 2px;
  }

  .problem-row strong {
    min-width: auto;
  }

  .parts-list {
    grid-template-columns: 1fr;
  }

  .area-grid {
    gap: 8px;
  }

  .area-tag {
    padding: 10px 16px;
    font-size: 0.82rem;
  }

  .decision-card {
    padding: 24px;
  }
}

/* ============================================
   RESPONSIVE - VERY SMALL (max-width: 380px)
   ============================================ */
@media (max-width: 380px) {
  .hero h1 {
    font-size: 1.5rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .btn-lg {
    padding: 14px 26px;
    font-size: 0.95rem;
  }

  .btn-xl {
    padding: 16px 30px;
    font-size: 1rem;
  }

  .sticky-cta {
    padding: 12px 18px;
    font-size: 0.85rem;
    bottom: 14px;
    right: 14px;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .top-bar,
  .site-header,
  .sticky-cta,
  .mobile-nav-overlay {
    display: none;
  }

  .section {
    padding: 30px 0;
    break-inside: avoid;
  }

  .hero {
    background: #ffffff;
    color: #000000;
  }

  .hero h1, .hero-sub {
    color: #000000;
  }

  body {
    font-size: 12pt;
  }
}

/* ============================================
   ACCESSIBILITY - FOCUS STYLES
   ============================================ */
a:focus-visible,
button:focus-visible,
details summary:focus-visible {
  outline: 3px solid #e8530e;
  outline-offset: 2px;
  border-radius: 4px;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   SELECTION STYLE
   ============================================ */
::selection {
  background: rgba(232, 83, 14, 0.15);
  color: #0d1b2a;
}