/* ==========================================================================
   Style 5: New Energy, C&I Energy Storage (BESS) & Solar Systems
   Benchmark: CATL C&I, Sungrow, Huawei Digital Power, BYD Energy
   Characteristics: Sustainable Emerald, Deep Energy Slate, Grid Reliability
   ========================================================================== */

:root {
  --energy-emerald: #059669;
  --energy-emerald-dark: #047857;
  --energy-emerald-light: #ecfdf5;
  --energy-green-glow: #10b981;
  --energy-dark: #06231e;
  --energy-dark-card: #09332c;
  --energy-slate: #1e3a34;
  --energy-text: #0f2922;
  --energy-muted: #4b6b63;
  --energy-page: #f6faf8;
  --energy-surface: #ffffff;
  --energy-border: #d1e5df;
  --radius-energy: 6px;
}

body.theme-energy {
  background-color: var(--energy-page);
  color: var(--energy-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

/* Header */
.energy-topbar {
  background-color: var(--energy-dark);
  color: #a7d3c8;
  font-size: 0.8rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

.energy-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--energy-border);
  position: sticky;
  top: 0;
  z-index: 900;
  padding: 0.9rem 0;
}

.energy-brand-mark {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #059669 0%, #10b981 100%);
  color: #ffffff;
  border-radius: var(--radius-energy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.15rem;
}

.energy-brand-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--energy-dark);
  letter-spacing: -0.01em;
}

.energy-brand-sub {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--energy-emerald);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Hero */
.energy-hero-wrap {
  background: radial-gradient(circle at 75% 25%, #0d4238 0%, #06231e 100%);
  color: #ffffff;
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.energy-hero-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(16, 185, 129, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 185, 129, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.energy-hero-tag {
  background-color: rgba(16, 185, 129, 0.2);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #6ee7b7;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.85rem;
  border-radius: 9999px;
  display: inline-block;
  margin-bottom: 1.25rem;
}

.energy-hero-title {
  font-size: 2.85rem;
  font-weight: 900;
  line-height: 1.15;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.energy-hero-title span {
  color: #34d399;
}

.energy-hero-desc {
  font-size: 1.05rem;
  color: #d1fae5;
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 620px;
}

.btn-energy-cta {
  background: linear-gradient(135deg, #059669 0%, #10b981 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-energy);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
  transition: all 0.15s ease;
  border: none;
  cursor: pointer;
}

.btn-energy-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
}

/* Card */
.energy-card {
  background-color: #ffffff;
  border: 1px solid var(--energy-border);
  border-radius: var(--radius-energy);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(6, 35, 30, 0.05);
  transition: all 0.2s ease;
}

.energy-card:hover {
  transform: translateY(-3px);
  border-color: var(--energy-emerald);
  box-shadow: 0 12px 24px rgba(5, 150, 105, 0.12);
}

.energy-card-visual {
  height: 200px;
  background-color: #0b2923;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-bottom: 1px solid var(--energy-border);
}

.energy-capacity-tag {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background-color: var(--energy-emerald);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-family: ui-monospace, monospace;
}

.energy-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.energy-card-category {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--energy-emerald);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.energy-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--energy-dark);
  line-height: 1.35;
  margin-bottom: 0.85rem;
}