:root {
  --color-primary: #1e3a8a;
  --color-accent: #10b981;
  --color-warn: #f59e0b;
  --color-bg: #f8fafc;
  --color-text: #0f172a;
  --color-muted: #64748b;
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.12);
  --shadow-card: 0 12px 30px rgba(15, 23, 42, 0.08);
  --container: min(1200px, 92vw);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Arial", sans-serif;
  color: var(--color-text);
  background: #ffffff;
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

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

.container {
  width: var(--container);
  margin: 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 26px;
  border-radius: 999px;
  border: none;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(16, 185, 129, 0.3);
}

.btn-outline {
  background: #ffffff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn:hover {
  transform: translateY(-2px);
}

.section {
  padding: 80px 0;
}

.section-muted {
  background: var(--color-bg);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(30, 58, 138, 0.08);
  color: var(--color-primary);
  border-radius: 999px;
  padding: 6px 14px;
  font-weight: 600;
  font-size: 14px;
}

.hero {
  padding: 60px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1.05;
  margin: 16px 0 18px;
}

.hero p {
  font-size: clamp(16px, 2vw, 22px);
  color: var(--color-muted);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-card {
  background: var(--color-primary);
  border-radius: var(--radius-xl);
  color: #ffffff;
  padding: 22px;
  display: grid;
  gap: 12px;
  box-shadow: var(--shadow-soft);
}

.hero-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  font-weight: 500;
}

.hero-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 22px;
}

.card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-card);
}

.card h3 {
  margin-top: 0;
}

.list {
  margin: 0;
  padding-left: 18px;
  color: var(--color-muted);
}

.highlight {
  color: var(--color-primary);
  font-weight: 700;
}

.calculator {
  display: grid;
  gap: 28px;
}

.calculator-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
}

.calculator-table th,
.calculator-table td {
  text-align: left;
  padding: 14px 12px;
  border-bottom: 1px solid #e2e8f0;
}

.calculator-table tr.active {
  background: rgba(16, 185, 129, 0.12);
  font-weight: 600;
}

.calculator-controls {
  display: grid;
  gap: 12px;
}

.slider {
  width: 100%;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  text-align: center;
}

.stat {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.stat strong {
  display: block;
  font-size: 26px;
  color: var(--color-primary);
}

.process {
  display: grid;
  gap: 20px;
}

.process-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: center;
}

.process-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(16, 185, 129, 0.15);
  display: grid;
  place-items: center;
  color: var(--color-accent);
  font-weight: 700;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.gallery img {
  border-radius: 16px;
  height: 100%;
  object-fit: cover;
}

.testimonial {
  display: grid;
  gap: 14px;
}

.testimonial img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
}

.form {
  display: grid;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

input,
select,
textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid #cbd5f5;
  font-size: 15px;
  font-family: inherit;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.form-footnote {
  font-size: 13px;
  color: var(--color-muted);
}

.footer {
  padding: 40px 0;
  text-align: center;
  color: var(--color-muted);
}

.footer-placeholder {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  background: rgba(15, 23, 42, 0.05);
  padding: 12px 18px;
  border-radius: 999px;
}

.hidden {
  display: none;
}

@media (max-width: 900px) {
  .hero {
    padding-top: 40px;
  }

  .section {
    padding: 60px 0;
  }
}

@media (max-width: 600px) {
  .btn {
    width: 100%;
  }

  .hero-card {
    padding: 18px;
  }

  .margin-table thead {
    display: none;
  }

  .margin-table,
  .margin-table tbody,
  .margin-table tr,
  .margin-table td {
    display: block;
    width: 100%;
  }

  .margin-table tr {
    border-bottom: 1px solid #e2e8f0;
  }

  .margin-table td {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
    border: none;
  }

  .margin-table td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--color-muted);
  }
}