:root {
  --bg: #e5f5fc;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #ffffff;
  --ink: #1f2933;
  --muted: #5c6772;
  --line: rgba(31, 41, 51, 0.12);
  --brand: #ea580c;
  --brand-deep: #9a3412;
  --accent: #14532d;
  --shadow: 0 24px 60px rgba(31, 41, 51, 0.12);
  --radius-xl: 28px;
  --radius-lg: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Outfit", sans-serif;
  color: var(--ink);
  background: linear-gradient(135deg, #e1eef6, #e1eef6);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.35) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 75%);
}

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 28px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.7fr);
  gap: 24px;
  align-items: end;
  margin-bottom: 16px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: #002e6e;
  font-weight: 700;
}

.hero h1,
.calculator-header h2 {
  margin: 0;
  line-height: 1.02;
}

.hero h1 {
  font-size: clamp(1.7rem, 3.2vw, 2.9rem);
  max-width: 24ch;
}

.hero-text,
.section-note,
.summary-text,
#batteryCopy {
  color: var(--muted);
}

.hero-text {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.5;
}

.hero-stat,
.calculator-card,
.summary-card,
.appliance-item {
  backdrop-filter: blur(18px);
}

.hero-stat,
.calculator-card {
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
}

.hero-stat {
  background: #002e6e;
  color: #fff9f3;
  padding: 18px;
  border-radius: var(--radius-xl);
}

.hero-stat-label {
  display: block;
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 249, 243, 0.7);
}

.hero-stat strong {
  display: block;
  margin: 10px 0 6px;
  font-size: 1.8rem;
}

.hero-stat p {
  margin: 0;
  color: #fff;
  line-height: 1.5;
}

.calculator-card {
  background: var(--surface);
  border-radius: 36px;
  padding: 20px;
}

.calculator-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 14px;
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.9fr);
  gap: 24px;
}

.appliance-panel,
.summary-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.panel-heading h3 {
  margin: 0;
  font-size: 1.08rem;
}

.ghost-button {
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.65);
  color: var(--ink);
  padding: 8px 14px;
  font: inherit;
  cursor: pointer;
}

.appliance-list {
  display: grid;
  gap: 10px;
}

.appliance-browser {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.category-tabs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.category-tab {
  appearance: none;
  border: 1px solid rgba(31, 41, 51, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.65);
  color: var(--ink);
  padding: 9px 14px;
  font: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms ease;
  text-align: left;
  width: 100%;
}

.category-tab:hover {
  transform: translateY(-1px);
}

.category-tab[aria-selected="true"] {
  background: linear-gradient(135deg, #002e6e, #002e6e);
  color: #fff;
  border-color: transparent;
}

.category-panels {
  display: grid;
}

.category-panel {
  padding: 2px 0 0;
}

.appliance-item {
  display: grid;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.appliance-item.active {
  transform: translateY(-1px);
     border-color: rgb(0 46 110 / 36%);
  box-shadow: 0 10px 24px rgba(234, 88, 12, 0.08);
}

.appliance-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 0.95rem;
}

.appliance-toggle input {
  inline-size: 18px;
  block-size: 18px; 
    accent-color: #002e6e;
}

.appliance-controls {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 12px;
}

.appliance-controls label,
.appliance-controls .watt-field,
.field-label {
  display: grid;
  gap: 6px;
  font-size: 0.82rem;
      color: #fff;
    margin-bottom: 5px;
    margin-top: 5px;
}

.qty-input,
.watt-input,
.text-field,
.select-field {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.88);
  padding: 10px 12px;
  font: inherit;
  color: var(--ink);
}

.watt-display {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.88);
  padding: 10px 12px;
  color: var(--ink);
  font-weight: 650;
}

.watt-unit {
  font-size: 0.84rem;
  color: var(--muted);
  font-weight: 600;
}

.qty-input:focus,
.watt-input:focus,
.text-field:focus,
.select-field:focus,
.ghost-button:focus,
.category-tab:focus {
  outline:  #002e6e;
  outline-offset: 2px;
}

.primary-button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, #002e6e, #002e6e);
  color: #fff;
  padding: 10px 16px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(234, 88, 12, 0.18);
  transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease;
}

.primary-button:hover {
  transform: translateY(-1px);
  filter: saturate(1.05);
  box-shadow: 0 16px 30px rgba(234, 88, 12, 0.22);
}

.primary-button:focus {
  outline: 2px solid rgba(234, 88, 12, 0.22);
  outline-offset: 2px;
}

.summary-card {
  padding: 16px 18px;
  border-radius: 24px;
      background: rgb(0 46 110);
  border: 1px solid var(--line);
}

.summary-card.accent {
      background: linear-gradient(135deg, rgb(0 46 110), rgb(0 46 110));
}

.summary-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  font-weight: 700;
}

.summary-value {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 8px;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: #fff;
}

.summary-value small {
  font-size: 0.9rem;
  color: #fff;
  font-weight: 500;
}

.summary-text {
  margin: 0;
  line-height: 1.45;
  font-size: 0.9rem;
  color: #fff;
}

.summary-actions {
  display: flex;
  justify-content: flex-end;
}

.quote-card {
  margin-top: 18px;
  background: var(--surface);
  border-radius: 36px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.quote-header h2 {
  margin: 0;
  line-height: 1.06;
}

.quote-body {
  margin-top: 14px;
}

.quote-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field {
  display: grid;
  gap: 6px;
}

.quote-actions {
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.quote-success {
  padding: 16px 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
}

.quote-success-title {
  margin: 0 0 8px;
  font-weight: 800;
  font-size: 1.1rem;
}

.quote-success-text {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 920px) {
  .hero,
  .calculator-grid {
    grid-template-columns: 1fr;
  }

  .calculator-header {
    align-items: start;
    flex-direction: column;
  }

  .appliance-browser {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 12px;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 1180px);
    padding: 24px 0 40px;
  }

  .calculator-card {
    padding: 16px;
    border-radius: 28px;
  }

  .appliance-controls {
    grid-template-columns: 1fr;
  }

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

  .appliance-browser {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 10px;
  }

  .category-tab {
    padding: 8px 10px;
    font-size: 0.82rem;
    border-radius: 14px;
  }

  .hero h1 {
    max-width: 100%;
    font-size: clamp(2rem, 7vw, 3rem);
  }
}