:root {
  --brand-700: #01589d;
  --brand-500: #00afef;
  --brand-300: #fbba39;
  --ink-950: #102033;
  --ink-700: #405063;
  --ink-500: #64748b;
  --surface: #f6fbff;
  --card: #ffffff;
  --line: rgba(1, 88, 157, 0.14);
  --shadow: 0 24px 80px rgba(1, 88, 157, 0.14);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--ink-950);
  background:
    radial-gradient(circle at top left, rgba(0, 175, 239, 0.20), transparent 28%),
    radial-gradient(circle at right 10% top 20%, rgba(251, 186, 57, 0.20), transparent 25%),
    linear-gradient(180deg, #eef9ff 0%, #f8fcff 38%, #ffffff 100%);
}

.page-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 64px;
}

.hero {
  display: grid;
  grid-template-columns: 1.45fr 0.75fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 28px;
}

.hero-copy,
.hero-panel,
.panel {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 36px;
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.hero-copy::after {
  content: "";
  position: absolute;
  inset: auto -80px -100px auto;
  width: 260px;
  height: 260px;
  background: linear-gradient(180deg, rgba(0, 175, 239, 0.18), rgba(251, 186, 57, 0.22));
  border-radius: 50%;
  filter: blur(2px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand-700);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hero h1,
.panel-heading h2,
.assumptions h3 {
  margin: 0;
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.hero-text,
.panel-heading p,
.assumptions li,
.field small,
.result-highlight p {
  color: var(--ink-700);
}

.hero-text {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 1.05rem;
  line-height: 1.65;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-badges span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(1, 88, 157, 0.08);
  color: var(--brand-700);
  font-weight: 700;
  font-size: 0.9rem;
}

.hero-panel {
  display: grid;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius-xl);
}

.mini-stat {
  padding: 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(1, 88, 157, 0.96), rgba(0, 175, 239, 0.90));
  color: #ffffff;
}

.mini-stat.accent {
  background: linear-gradient(180deg, rgba(251, 186, 57, 0.96), rgba(255, 157, 0, 0.96));
  color: var(--ink-950);
}

.mini-stat-label {
  display: block;
  margin-bottom: 16px;
  font-weight: 700;
  opacity: 0.92;
}

.mini-stat strong {
  display: block;
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.mini-stat small {
  display: inline-block;
  margin-top: 12px;
  opacity: 0.88;
}

.calculator-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
}

.panel {
  padding: 28px;
  border-radius: var(--radius-xl);
}

.panel-heading {
  margin-bottom: 24px;
}

.panel-heading h2 {
  font-size: 1.6rem;
  letter-spacing: -0.04em;
}

.panel-heading p {
  margin: 8px 0 0;
  line-height: 1.55;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  font-size: 0.95rem;
  font-weight: 700;
}

.field input {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #ffffff;
  color: var(--ink-950);
  font: inherit;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.field input:focus {
  outline: none;
  border-color: rgba(0, 175, 239, 0.9);
  box-shadow: 0 0 0 5px rgba(0, 175, 239, 0.12);
  transform: translateY(-1px);
}

.field small {
  font-size: 0.82rem;
  line-height: 1.45;
}

.assumptions {
  margin-top: 28px;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(1, 88, 157, 0.05), rgba(0, 175, 239, 0.03));
  border: 1px solid var(--line);
}

.assumptions h3 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.assumptions ul {
  margin: 0;
  padding-left: 18px;
}

.assumptions li + li {
  margin-top: 8px;
}

.result-highlight {
  display: grid;
  gap: 8px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(1, 88, 157, 1), rgba(0, 175, 239, 0.92));
  color: #ffffff;
}

.result-label,
.result-card-label {
  display: block;
  margin-bottom: 10px;
  font-size: 0.84rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.result-highlight strong {
  display: block;
  font-size: clamp(2.3rem, 5vw, 3.4rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.result-highlight p {
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.result-card {
  padding: 18px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid var(--line);
}

.result-card strong {
  font-size: 1.45rem;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.bar-comparison {
  margin-top: 22px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: rgba(1, 88, 157, 0.04);
  border: 1px solid var(--line);
}

.bar-row + .bar-row {
  margin-top: 16px;
}

.bar-copy {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
  margin-bottom: 8px;
  font-weight: 700;
}

.bar-track {
  height: 16px;
  border-radius: 999px;
  background: rgba(1, 88, 157, 0.10);
  overflow: hidden;
}

.bar {
  height: 100%;
  border-radius: inherit;
  min-width: 2%;
  transition: width 220ms ease;
}

.bar.fuel {
  background: linear-gradient(90deg, var(--brand-300), #ff8c2b);
}

.bar.ev {
  background: linear-gradient(90deg, var(--brand-700), var(--brand-500));
}

@media (max-width: 1080px) {
  .hero,
  .calculator-layout {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: 14ch;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 1240px);
    padding: 18px 0 32px;
  }

  .hero-copy,
  .hero-panel,
  .panel {
    padding: 22px;
    border-radius: 22px;
  }

  .form-grid,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: clamp(2rem, 11vw, 3.2rem);
  }
}