:root {
  --bg: #0f172a;
  --bg-soft: #111827;
  --card: #ffffff;
  --card-soft: #f8fafc;
  --text: #0f172a;
  --text-soft: #475569;
  --line: #dbe3ee;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --highlight: #ecfeff;
  --success: #166534;
  --warning: #92400e;
  --danger: #991b1b;
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
  --radius: 22px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f8fafc 0%, #eef4f8 100%);
  line-height: 1.6;
  overflow-wrap: anywhere;
}

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

img {
  max-width: 100%;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(248, 250, 252, 0.9);
  border-bottom: 1px solid rgba(219, 227, 238, 0.8);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand img {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  display: block;
}

.brand span {
  line-height: 1;
}

.main-nav,
.footer-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.main-nav a,
.footer-nav a {
  color: var(--text-soft);
  font-weight: 600;
}

.hero {
  padding: 72px 0 34px;
}

.hero-grid,
.calculator-layout,
.info-grid,
.footer-grid {
  display: grid;
  gap: 28px;
}

.hero-grid,
.calculator-layout {
  grid-template-columns: 1.25fr 0.9fr;
  align-items: start;
}

.hero-copy h1,
.section-heading h2,
.legal-card h1 {
  margin: 0 0 16px;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-copy h1 {
  font-size: clamp(2.4rem, 4.4vw, 4.8rem);

}

.lead {
  max-width: 58ch;
  font-size: 1.08rem;
  color: var(--text-soft);
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--primary);
}

.hero-points {
  padding-left: 18px;
  margin: 0 0 28px;
  color: var(--text-soft);
}

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

.hero-card,
.calculator-card,
.result-card,
.content-card,
.legal-card {
  background: var(--card);
  border: 1px solid rgba(219, 227, 238, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card,
.result-card {
  padding: 32px;
}

.hero-card h2,
.result-card h2,
.content-card h2,
.legal-card h2 {
  margin: 0 0 20px;
  line-height: 1.2;
}

.mini-metrics {
  display: grid;
  gap: 18px;
}

.mini-metrics div {
  padding: 18px;
  border-radius: 18px;
  background: var(--card-soft);
  border: 1px solid var(--line);
}

.mini-label {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.76rem;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--primary);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 999px;
  padding: 14px 22px;
  cursor: pointer;
  font-weight: 800;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

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

.button.primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.button.secondary {
  background: #e2e8f0;
  color: var(--text);
}

.ad-section {
  padding: 18px 0 30px;
}

.ad-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
  border: 2px dashed #94a3b8;
  border-radius: 20px;
  background: repeating-linear-gradient(
    45deg,
    rgba(148, 163, 184, 0.08),
    rgba(148, 163, 184, 0.08) 10px,
    rgba(148, 163, 184, 0.03) 10px,
    rgba(148, 163, 184, 0.03) 20px
  );
  color: var(--text-soft);
  font-weight: 700;
  text-align: center;
  padding: 16px;
}

.ad-wide {
  min-height: 180px;
}

.ad-rectangle {
  min-height: 280px;
  max-width: 380px;
  margin: 0 auto;
}

.calculator-section,
.content-section,
.faq-section,
.legal-main {
  padding: 20px 0 42px;
}

.calculator-card {
  padding: 30px;
}

.section-heading p:last-child,
.result-summary,
.note-box p,
.content-card p,
.legal-card p,
.faq-list p {
  color: var(--text-soft);
}

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

label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 700;
}

input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #ffffff;
  font: inherit;
}

input:focus {
  outline: 2px solid rgba(15, 118, 110, 0.18);
  border-color: var(--primary);
}

.calculator-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.form-message {
  min-height: 24px;
  margin: 14px 0 0;
  font-weight: 700;
}

.result-grid {
  display: grid;
  gap: 16px;
}

.result-box,
.note-box {
  padding: 18px;
  border-radius: 18px;
  background: var(--card-soft);
  border: 1px solid var(--line);
}

.result-box span,
.note-box h3 {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
}

.result-box strong {
  font-size: clamp(1.2rem, 2.6vw, 2rem);
  line-height: 1.2;
}

.result-box.emphasis {
  background: var(--highlight);
  border-color: rgba(15, 118, 110, 0.3);
}

.result-summary {
  margin: 18px 0;
  padding: 16px 0 6px;
}

.info-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.content-card,
.legal-card {
  padding: 28px;
}

.narrow {
  max-width: 680px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

summary {
  cursor: pointer;
  font-weight: 800;
}

.site-footer {
  padding: 34px 0 44px;
  background: var(--bg);
  color: #e5eef8;
}

.footer-grid {
  grid-template-columns: 1.3fr 0.7fr;
  align-items: start;
}

.footer-nav a {
  color: #dbe7f5;
}

.legal-main {
  min-height: calc(100vh - 170px);
}

.legal-card {
  max-width: 900px;
}

.result-positive {
  color: var(--success);
}

.result-neutral {
  color: var(--warning);
}

.result-negative {
  color: var(--danger);
}

@media (max-width: 960px) {
  .hero-grid,
  .calculator-layout,
  .info-grid,
  .footer-grid,
  .field-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 42px;
  }

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

@media (max-width: 640px) {
  .hero-copy h1 {
    max-width: none;
  }

  .calculator-card,
  .result-card,
  .hero-card,
  .content-card,
  .legal-card {
    padding: 22px;
  }

  .main-nav,
  .footer-nav,
  .calculator-actions {
    gap: 10px;
  }

  .button {
    width: 100%;
  }
}