/* ===== CSS Reset & Base Styles ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Colors - Solar Theme */
  --primary: 32, 95%, 50%;
  --primary-foreground: 0, 0%, 100%;
  --secondary: 142, 71%, 35%;
  --secondary-foreground: 0, 0%, 100%;
  --background: 45, 30%, 98%;
  --foreground: 30, 20%, 15%;
  --card: 0, 0%, 100%;
  --card-foreground: 30, 20%, 15%;
  --muted: 45, 20%, 92%;
  --muted-foreground: 30, 10%, 45%;
  --border: 32, 30%, 88%;
  --ring: 32, 95%, 50%;
  --radius: 0.75rem;
  
  /* Gradients */
  --gradient-solar: linear-gradient(135deg, hsl(32, 95%, 50%) 0%, hsl(45, 100%, 55%) 100%);
  --gradient-eco: linear-gradient(135deg, hsl(142, 71%, 35%) 0%, hsl(160, 60%, 45%) 100%);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

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

/* ===== Container ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Utility Classes ===== */
.text-primary { color: hsl(var(--primary)); }
.text-secondary { color: hsl(var(--secondary)); }
.text-muted { color: hsl(var(--muted-foreground)); }
.bg-primary { background-color: hsl(var(--primary)); }
.bg-secondary { background-color: hsl(var(--secondary)); }

.solar-gradient { background: var(--gradient-solar); }
.eco-gradient { background: var(--gradient-eco); }

.text-center { text-align: center; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: hsla(var(--background), 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid hsl(var(--border));
  padding: 1rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  background: var(--gradient-solar);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.logo-text {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
}

.nav-desktop {
  display: none;
  gap: 2rem;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  font-weight: 500;
  color: hsl(var(--muted-foreground));
  transition: color 0.2s;
}

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

.mobile-menu-btn {
  display: block;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: hsl(var(--foreground));
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: hsl(var(--card));
  border-bottom: 1px solid hsl(var(--border));
  padding: 1rem;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav a {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  transition: background-color 0.2s;
}

.mobile-nav a:hover {
  background-color: hsl(var(--muted));
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

.btn-primary {
  background: var(--gradient-solar);
  color: white;
  box-shadow: 0 4px 15px hsla(var(--primary), 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px hsla(var(--primary), 0.4);
}

.btn-secondary {
  background: hsl(var(--secondary));
  color: white;
}

.btn-outline {
  background: transparent;
  border: 2px solid hsl(var(--primary));
  color: hsl(var(--primary));
}

.btn-outline:hover {
  background: hsl(var(--primary));
  color: white;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ===== Cards ===== */
.card {
  background: hsl(var(--card));
  border-radius: 1rem;
  border: 1px solid hsl(var(--border));
  padding: 1.5rem;
  transition: all 0.3s;
}

.card:hover {
  box-shadow: 0 10px 40px hsla(var(--primary), 0.1);
  border-color: hsla(var(--primary), 0.2);
}

.brand-card {
  background: hsl(var(--card));
  border-radius: 1.5rem;
  border: 1px solid hsl(var(--border));
  padding: 2rem;
  transition: all 0.3s;
}

.brand-card:hover {
  box-shadow: 0 20px 60px hsla(var(--primary), 0.15);
  transform: translateY(-5px);
}

/* ===== Section Styles ===== */
section {
  padding: 4rem 0;
}

@media (min-width: 768px) {
  section {
    padding: 6rem 0;
  }
}

.section-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  background: hsla(var(--primary), 0.1);
  color: hsl(var(--primary));
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  color: hsl(var(--muted-foreground));
  max-width: 42rem;
  margin: 0 auto;
}

/* ===== Hero Section ===== */
.hero {
  padding: 4rem 0 6rem;
  background: linear-gradient(180deg, hsla(var(--primary), 0.05) 0%, transparent 100%);
}

.hero-content {
  display: grid;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: hsla(var(--secondary), 0.1);
  color: hsl(var(--secondary));
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.5rem;
}

.hero h1 .highlight {
  background: var(--gradient-solar);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: hsl(var(--primary));
}

.stat-label {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

.hero-card {
  background: hsl(var(--card));
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: 0 25px 80px hsla(var(--primary), 0.15);
  border: 1px solid hsl(var(--border));
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid hsl(var(--border));
}

.hero-card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  background: var(--gradient-solar);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

/* ===== Tables ===== */
.table-container {
  overflow-x: auto;
  border-radius: 1rem;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  background: hsla(var(--primary), 0.1);
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}

td {
  padding: 1rem;
  border-top: 1px solid hsl(var(--border));
}

tr:hover td {
  background: hsla(var(--primary), 0.02);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-stable {
  background: hsla(var(--secondary), 0.1);
  color: hsl(var(--secondary));
}

.status-drop {
  background: hsla(200, 80%, 50%, 0.1);
  color: hsl(200, 80%, 45%);
}

.status-hot {
  background: hsla(var(--primary), 0.1);
  color: hsl(var(--primary));
}

/* ===== Grid Layouts ===== */
.grid-2 {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4 {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ===== Icon Boxes ===== */
.icon-box {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon-box-primary {
  background: var(--gradient-solar);
  color: white;
}

.icon-box-secondary {
  background: var(--gradient-eco);
  color: white;
}

.icon-box-muted {
  background: hsla(var(--primary), 0.1);
  color: hsl(var(--primary));
}

/* ===== Brand Sections ===== */
.brand-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.brand-rank {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--gradient-solar);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.brand-features {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.brand-feature {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.brand-feature svg {
  width: 1.25rem;
  height: 1.25rem;
  color: hsl(var(--secondary));
  flex-shrink: 0;
  margin-top: 0.125rem;
}

/* ===== Decision Guide ===== */
.decision-card {
  background: hsl(var(--card));
  border-radius: 1rem;
  padding: 1.5rem;
  border: 2px solid transparent;
  transition: all 0.3s;
}

.decision-card:hover {
  border-color: hsl(var(--primary));
}

.decision-card .label {
  font-size: 0.875rem;
  color: hsl(var(--primary));
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.decision-card .panel {
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.decision-card .price {
  color: hsl(var(--secondary));
  font-weight: 600;
}

.decision-card .desc {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  margin-top: 0.5rem;
}

/* ===== System Costs ===== */
.system-card {
  background: hsl(var(--card));
  border-radius: 1.5rem;
  overflow: hidden;
  border: 1px solid hsl(var(--border));
}

.system-card.popular {
  border: 2px solid hsl(var(--primary));
  position: relative;
}

.system-card.popular::before {
  content: 'Most Popular';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-solar);
  color: white;
  padding: 0.25rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 0 0 0.5rem 0.5rem;
}

.system-header {
  background: linear-gradient(135deg, hsla(var(--primary), 0.1), hsla(var(--secondary), 0.1));
  padding: 2rem;
  text-align: center;
}

.system-size {
  font-size: 2.5rem;
  font-weight: 700;
  color: hsl(var(--primary));
}

.system-price {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 0.5rem;
}

.system-body {
  padding: 2rem;
}

.system-includes {
  margin-bottom: 1.5rem;
}

.system-includes h4 {
  font-weight: 600;
  margin-bottom: 1rem;
}

.system-includes ul {
  list-style: none;
}

.system-includes li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid hsl(var(--border));
}

.system-includes li:last-child {
  border-bottom: none;
}

.system-includes svg {
  width: 1.25rem;
  height: 1.25rem;
  color: hsl(var(--secondary));
  flex-shrink: 0;
}

.performance-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid hsl(var(--border));
}

.performance-item {
  text-align: center;
}

.performance-value {
  font-weight: 700;
  color: hsl(var(--primary));
}

.performance-label {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
}

/* ===== City Prices ===== */
.city-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .city-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .city-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.city-card {
  background: hsl(var(--card));
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
  border: 1px solid hsl(var(--border));
  transition: all 0.3s;
}

.city-card:hover {
  border-color: hsl(var(--primary));
  transform: translateY(-3px);
}

.city-card .city-name {
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.city-card .city-price {
  color: hsl(var(--primary));
  font-weight: 600;
}

.city-card .city-status {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  margin-top: 0.5rem;
}

/* ===== ROI Section ===== */
.roi-box {
  background: linear-gradient(135deg, hsla(var(--primary), 0.05), hsla(var(--secondary), 0.05));
  border-radius: 1.5rem;
  padding: 2rem;
  border: 1px solid hsl(var(--border));
}

.roi-highlight {
  background: var(--gradient-solar);
  color: white;
  padding: 1.5rem;
  border-radius: 1rem;
  text-align: center;
  margin: 1.5rem 0;
}

.roi-highlight .value {
  font-size: 2rem;
  font-weight: 700;
}

.roi-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .roi-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.roi-item {
  background: hsl(var(--card));
  padding: 1.5rem;
  border-radius: 1rem;
  text-align: center;
}

.roi-item .label {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 0.5rem;
}

.roi-item .value {
  font-size: 1.25rem;
  font-weight: 700;
}

.roi-item .value.primary {
  color: hsl(var(--primary));
}

.roi-item .value.secondary {
  color: hsl(var(--secondary));
}

/* ===== FAQ Section ===== */
.faq-item {
  background: hsl(var(--card));
  border-radius: 1rem;
  border: 1px solid hsl(var(--border));
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-weight: 600;
  font-size: 1rem;
  color: hsl(var(--foreground));
  transition: background-color 0.2s;
}

.faq-question:hover {
  background: hsla(var(--primary), 0.05);
}

.faq-question svg {
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  color: hsl(var(--muted-foreground));
}

/* ===== Mistakes Section ===== */
.mistake-card {
  background: hsl(var(--card));
  border-radius: 1rem;
  padding: 1.5rem;
  border-left: 4px solid hsl(0, 70%, 50%);
}

.mistake-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.mistake-number {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: hsl(0, 70%, 95%);
  color: hsl(0, 70%, 50%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.mistake-labels {
  margin: 1rem 0;
}

.mistake-label {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem 0;
  font-size: 0.875rem;
}

.mistake-label strong {
  color: hsl(0, 70%, 50%);
}

.mistake-fix {
  background: hsla(var(--secondary), 0.1);
  padding: 1rem;
  border-radius: 0.5rem;
  margin-top: 1rem;
}

.mistake-fix strong {
  color: hsl(var(--secondary));
}

/* ===== Checklist ===== */
.checklist {
  display: grid;
  gap: 0.75rem;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.checklist-icon {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: hsla(var(--secondary), 0.1);
  color: hsl(var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ===== Tips Section ===== */
.tip-card {
  background: hsl(var(--card));
  border-radius: 1rem;
  padding: 1.5rem;
  border: 1px solid hsl(var(--border));
  display: flex;
  gap: 1rem;
}

.tip-number {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--gradient-solar);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== Contact Section ===== */
.contact-section {
  background: linear-gradient(135deg, hsl(var(--foreground)), hsl(30, 20%, 25%));
  color: white;
  padding: 5rem 0;
}

.contact-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info h2 {
  margin-bottom: 1rem;
}

.contact-info p {
  opacity: 0.8;
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-form {
  background: rgba(255,255,255,0.05);
  border-radius: 1.5rem;
  padding: 2rem;
  border: 1px solid rgba(255,255,255,0.1);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.05);
  color: white;
  font-size: 1rem;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.5);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: hsl(var(--primary));
}

/* ===== Footer ===== */
.footer {
  background: hsl(var(--foreground));
  color: white;
  padding: 3rem 0;
}

.disclaimer {
  background: rgba(255,255,255,0.1);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 3rem;
}

.disclaimer-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.disclaimer-icon {
  color: hsl(var(--primary));
  flex-shrink: 0;
}

.disclaimer h4 {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.disclaimer p {
  opacity: 0.8;
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.disclaimer p:last-child {
  margin-bottom: 0;
  opacity: 0.6;
}

.cta-banner {
  text-align: center;
  margin-bottom: 3rem;
}

.cta-banner h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .cta-banner h3 {
    font-size: 2rem;
  }
}

.cta-banner p {
  opacity: 0.8;
  max-width: 48rem;
  margin: 0 auto;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.2);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-copyright {
  opacity: 0.6;
  font-size: 0.875rem;
  text-align: center;
}

/* ===== Expert Recommendation ===== */
.expert-cards {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .expert-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.expert-card {
  background: hsl(var(--card));
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
  border: 1px solid hsl(var(--border));
  transition: all 0.3s;
}

.expert-card:hover {
  border-color: hsla(var(--primary), 0.3);
  transform: translateY(-3px);
}

.expert-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.75rem;
  background: var(--gradient-solar);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: white;
}

.expert-label {
  font-size: 0.875rem;
  color: hsl(var(--primary));
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.expert-panel {
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.expert-price {
  color: hsl(var(--primary));
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.expert-inverter {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

.bottom-line {
  background: hsla(var(--secondary), 0.1);
  border: 1px solid hsla(var(--secondary), 0.2);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  max-width: 48rem;
  margin: 3rem auto 0;
}

.bottom-line h3 {
  margin-bottom: 1rem;
}

.bottom-line p {
  color: hsl(var(--muted-foreground));
  font-size: 1.125rem;
}

.bottom-line strong {
  color: hsl(var(--secondary));
}

/* ===== Policies Section ===== */
.policy-card {
  background: hsl(var(--card));
  border-radius: 1rem;
  padding: 1.5rem;
  border: 1px solid hsl(var(--border));
}

.policy-card h3 {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.policy-list {
  list-style: none;
}

.policy-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.5rem 0;
}

.policy-list svg {
  width: 1.25rem;
  height: 1.25rem;
  color: hsl(var(--secondary));
  flex-shrink: 0;
  margin-top: 0.125rem;
}

/* ===== Why Buy Now ===== */
.reasons-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .reasons-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .reasons-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.reason-card {
  background: hsl(var(--card));
  border-radius: 1rem;
  padding: 1.5rem;
  border: 1px solid hsl(var(--border));
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.reason-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  background: hsla(var(--primary), 0.1);
  color: hsl(var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ===== Solar Potential ===== */
.potential-highlight {
  background: linear-gradient(135deg, hsla(var(--primary), 0.1), hsla(var(--secondary), 0.1));
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  margin-bottom: 2rem;
}

.potential-stats {
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .potential-stats {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-2 {
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
}
}

.potential-stat {
  background: hsl(var(--card));
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
}

.potential-value {
  font-size: 2rem;
  font-weight: 700;
  color: hsl(var(--primary));
}

.potential-label {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

/* ===== Animations ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.pulse {
  animation: pulse 2s infinite;
}

/* ===== Scroll to Top Button ===== */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--gradient-solar);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  box-shadow: 0 4px 15px hsla(var(--primary), 0.3);
  z-index: 50;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-3px);
}