/* VoltBattery — Design System & Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  --bg-base: #06080F;
  --bg-card: rgba(15, 23, 42, 0.65);
  --bg-card-hover: rgba(22, 33, 58, 0.85);
  --bg-glass: rgba(30, 41, 59, 0.45);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(16, 185, 129, 0.4);
  
  --emerald: #10B981;
  --emerald-glow: rgba(16, 185, 129, 0.25);
  --cyan: #06B6D4;
  --cyan-glow: rgba(6, 182, 212, 0.25);
  --amber: #F59E0B;
  --amber-glow: rgba(245, 158, 11, 0.25);
  --rose: #F43F5E;
  
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px -5px var(--emerald-glow);
}

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

body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.5;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(16, 185, 129, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(6, 182, 212, 0.07) 0%, transparent 45%);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 5rem 1.5rem;
}

/* Header & Branding */
header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--emerald);
  margin-bottom: 1rem;
  backdrop-filter: blur(8px);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--emerald);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

h1 {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, #FFFFFF 30%, #94A3B8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 680px;
  margin: 0 auto 1.5rem auto;
}

/* Cross-Tool Banner */
.cross-banner {
  background: linear-gradient(90deg, rgba(6, 182, 212, 0.12), rgba(16, 185, 129, 0.12));
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.cross-banner a {
  color: var(--cyan);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: color 0.2s ease;
}

.cross-banner a:hover {
  color: #38BDF8;
  text-decoration: underline;
}

/* Preset Scenarios */
.section-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.25s ease;
  backdrop-filter: blur(12px);
  position: relative;
}

.scenario-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-2px);
}

.scenario-card.active {
  background: rgba(16, 185, 129, 0.08);
  border-color: var(--emerald);
  box-shadow: 0 0 20px -5px var(--emerald-glow);
}

.scenario-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--emerald);
  margin-bottom: 0.4rem;
  display: block;
}

.scenario-card h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.scenario-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Core Calculator Grid */
.calculator-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

@media (max-width: 960px) {
  .calculator-grid {
    grid-template-columns: 1fr;
  }
}

.glass-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
}

/* Control Row */
.control-row {
  margin-bottom: 1.75rem;
}

.control-label-group {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
}

.control-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.control-value {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--emerald);
}

/* Sliders */
input[type="range"] {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--emerald);
  cursor: pointer;
  box-shadow: 0 0 12px var(--emerald);
  transition: transform 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.slider-marks {
  display: flex;
  justify-content: space-between;
  margin-top: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* State Selector */
.select-wrapper {
  position: relative;
}

select {
  width: 100%;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.8rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: var(--font-body);
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s ease;
}

select:focus {
  border-color: var(--emerald);
}

/* Solar Toggle */
.solar-toggle-box {
  background: rgba(6, 182, 212, 0.06);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1.75rem;
}

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

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(255, 255, 255, 0.15);
  transition: 0.3s;
  border-radius: 24px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

input:checked + .toggle-slider {
  background-color: var(--cyan);
}

input:checked + .toggle-slider:before {
  transform: translateX(20px);
}

/* Appliance Checkbox Grid */
.appliance-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.appliance-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 520px;
  overflow-y: auto;
  padding-right: 0.5rem;
}

.appliance-grid::-webkit-scrollbar {
  width: 6px;
}

.appliance-grid::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
}

.appliance-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  transition: all 0.2s ease;
}

.appliance-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
}

.appliance-item.checked {
  border-color: rgba(16, 185, 129, 0.35);
  background: rgba(16, 185, 129, 0.05);
}

.appliance-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.appliance-icon {
  font-size: 1.35rem;
}

.appliance-name {
  font-size: 0.95rem;
  font-weight: 600;
}

.appliance-specs {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.appliance-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.duty-hours-input {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.duty-hours-input input {
  width: 50px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.25rem 0.4rem;
  border-radius: var(--radius-sm);
  text-align: center;
  font-family: var(--font-heading);
}

.custom-checkbox {
  width: 22px;
  height: 22px;
  accent-color: var(--emerald);
  cursor: pointer;
}

/* Results Hero Column */
.results-hero {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-metric-card {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(6, 182, 212, 0.05) 100%);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  text-align: center;
  box-shadow: 0 0 30px -10px var(--emerald-glow);
  position: relative;
  overflow: hidden;
}

.hero-metric-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--emerald), var(--cyan));
}

.hero-metric-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--emerald);
  margin-bottom: 0.5rem;
}

.hero-metric-value {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.hero-metric-value span {
  font-size: 1.75rem;
  color: var(--emerald);
}

.hero-subtext {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.metrics-secondary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.mini-metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  text-align: center;
}

.mini-metric-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
}

.mini-metric-value {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Arbitrage Box */
.arbitrage-card {
  background: rgba(245, 158, 11, 0.06);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.arbitrage-card h4 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--amber);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.arbitrage-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.arbitrage-stat {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: #FBBF24;
  margin-top: 0.5rem;
}

/* Share & Action Buttons */
.action-buttons {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.btn-share {
  flex: 1;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.85rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.btn-share:hover {
  background: var(--bg-card-hover);
  border-color: var(--cyan);
  color: var(--cyan);
}

/* Recommended Battery Section */
.recommended-section {
  margin-top: 3.5rem;
}

.battery-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.battery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(16px);
  transition: all 0.25s ease;
  position: relative;
}

.battery-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
}

.battery-card.highlighted {
  border-color: var(--emerald);
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.08) 0%, rgba(15, 23, 42, 0.8) 100%);
  box-shadow: 0 0 30px -5px var(--emerald-glow);
}

.battery-badge-top {
  position: absolute;
  top: -12px;
  right: 18px;
  background: var(--emerald);
  color: #06080F;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.battery-tier-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.battery-card h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.battery-specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin: 1.25rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.spec-item {
  font-size: 0.82rem;
}

.spec-name {
  color: var(--text-dim);
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
}

.spec-val {
  font-weight: 600;
  color: var(--text-main);
}

.battery-features {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 1.5rem;
}

.battery-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.battery-price {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
}

.btn-amazon {
  background: linear-gradient(135deg, #10B981, #059669);
  color: #FFFFFF;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-amazon:hover {
  background: linear-gradient(135deg, #059669, #047857);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
  transform: translateY(-1px);
}

/* Educational FAQ */
.faq-section {
  margin-top: 4.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.faq-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.faq-card h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  color: var(--emerald);
}

.faq-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Footer & Compliance */
footer {
  text-align: center;
  margin-top: 4.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-dim);
  font-size: 0.82rem;
}

.footer-disclosure {
  max-width: 600px;
  margin: 0.75rem auto 0 auto;
  font-size: 0.75rem;
  color: #64748B;
  line-height: 1.4;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #10B981;
  color: #06080F;
  font-weight: 700;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 999;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}


/* Whole-Home Battery High-Ticket Lead Gen Card */
.battery-inline-callout {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.12) 0%, rgba(6, 182, 212, 0.08) 100%);
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.1rem;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  backdrop-filter: blur(10px);
}

.battery-inline-callout .callout-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.battery-inline-callout .callout-body {
  flex: 1;
}

.battery-inline-callout .callout-title {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--emerald);
}

.battery-inline-callout .callout-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.battery-inline-callout .callout-link {
  font-size: 0.82rem;
  font-weight: 700;
  color: #fff;
  background: rgba(16, 185, 129, 0.25);
  border: 1px solid rgba(16, 185, 129, 0.5);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.battery-inline-callout .callout-link:hover {
  background: var(--emerald);
  color: #06080F;
  box-shadow: 0 0 15px var(--emerald-glow);
}

.battery-lead-section {
  margin: 3.5rem 0 2rem 0;
}

.battery-lead-card {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(6, 8, 15, 0.95) 100%);
  border: 1px solid rgba(16, 185, 129, 0.4);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 45px -15px rgba(0, 0, 0, 0.6), 0 0 30px -10px var(--emerald-glow);
  backdrop-filter: blur(16px);
}

.battery-lead-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #10b981, #06b6d4, #f59e0b);
}

.battery-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.battery-badge-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.badge-battery-glow {
  background: rgba(16, 185, 129, 0.18);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  letter-spacing: 0.02em;
}

.badge-battery-state {
  background: rgba(6, 182, 212, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(6, 182, 212, 0.35);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
}

.battery-tax-badge {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
}

.battery-card-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2.25rem;
  align-items: center;
}

.battery-heading {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.battery-subheading {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.battery-perks-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.battery-perk-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 0.85rem;
}

.battery-perk-card strong {
  display: block;
  font-size: 0.88rem;
  color: #f1f5f9;
  margin-bottom: 0.15rem;
}

.battery-perk-card p {
  font-size: 0.75rem;
  color: var(--text-dim);
  line-height: 1.35;
}

.battery-action-col {
  display: flex;
  justify-content: center;
}

.battery-cta-box {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.7) 0%, rgba(15, 23, 42, 0.85) 100%);
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  text-align: center;
  width: 100%;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.battery-cta-box .cta-box-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--emerald);
  margin-bottom: 0.5rem;
}

.btn-battery-lead {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(16, 185, 129, 0.35);
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
}

.btn-battery-lead:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
  color: #fff;
  background: linear-gradient(135deg, #34d399 0%, #10b981 100%);
}

@media (max-width: 900px) {
  .battery-card-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .battery-perks-grid {
    grid-template-columns: 1fr;
  }
}


/* Email Lead Magnet Modal Styles */
.btn-email-lead {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2) 0%, rgba(6, 182, 212, 0.2) 100%);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #fff;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-email-lead:hover {
  background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  color: #000;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
  transform: translateY(-1px);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: linear-gradient(135deg, rgba(18, 25, 41, 0.98) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid rgba(16, 185, 129, 0.45);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  max-width: 520px;
  width: 100%;
  position: relative;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 40px -10px rgba(16, 185, 129, 0.3);
  transform: scale(0.95);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.2s;
}

.modal-close:hover {
  color: #fff;
}

.modal-badge {
  display: inline-block;
  background: rgba(16, 185, 129, 0.15);
  color: var(--emerald);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.modal-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.form-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.modal-input {
  width: 100%;
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.modal-input:focus {
  border-color: var(--emerald);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.25);
}

.btn-submit-lead {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #000;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-submit-lead:hover {
  background: linear-gradient(135deg, #34d399 0%, #10b981 100%);
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.form-feedback {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  text-align: center;
}

.feedback-success {
  color: #34d399;
  font-weight: 600;
}

.feedback-error {
  color: #f43f5e;
  font-weight: 600;
}

.modal-footer-notes {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--text-dim);
  text-align: center;
}