:root {
  --color-navy: #1a2332;
  --color-charcoal: #2d3748;
  --color-slate: #4a5568;
  --color-muted: #718096;
  --color-light: #e2e8f0;
  --color-lighter: #f1f5f9;
  --color-white: #ffffff;
  --color-accent: #2563a0;
  --color-accent-hover: #1e4f80;
  --color-accent-light: #e8f0f8;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1100px;
  --radius: 6px;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-charcoal);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  color: var(--color-navy);
  line-height: 1.25;
}

h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 40px;
}

p {
  color: var(--color-slate);
}

/* Nav */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-light);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-slate);
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--color-navy);
}

.nav-cta {
  background: var(--color-accent);
  color: var(--color-white) !important;
  padding: 8px 20px;
  border-radius: var(--radius);
  transition: background 0.15s !important;
}

.nav-cta:hover {
  background: var(--color-accent-hover) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  transition: transform 0.2s, opacity 0.2s;
}

/* Hero */

.hero {
  padding: 140px 0 80px;
  background: var(--color-lighter);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 1.125rem;
  margin-top: 20px;
  margin-bottom: 36px;
  color: var(--color-slate);
  line-height: 1.7;
}

/* Report mockup */

.hero-visual {
  display: flex;
  justify-content: center;
}

.report-mock {
  background: var(--color-white);
  border: 1px solid var(--color-light);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.report-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.report-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  background: var(--color-accent-light);
  padding: 4px 10px;
  border-radius: 4px;
}

.report-date {
  font-size: 0.75rem;
  color: var(--color-muted);
}

.report-title-line {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.35;
  margin-bottom: 16px;
}

.report-summary {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  gap: 4px 16px;
  padding: 12px 0;
  border-top: 1px solid var(--color-light);
  border-bottom: 1px solid var(--color-light);
  margin-bottom: 16px;
}

.report-label {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.report-value {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-navy);
  text-align: right;
}

.report-refs {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.report-ref {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.ref-rating {
  font-size: 0.6875rem;
  font-weight: 700;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.ref-a {
  background: #dbeafe;
  color: #1e4f80;
}

.ref-b {
  background: var(--color-lighter);
  color: var(--color-slate);
}

.ref-detail {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.ref-id {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-navy);
}

.ref-desc {
  font-size: 0.75rem;
  color: var(--color-slate);
  line-height: 1.4;
}

.ref-assignee {
  font-size: 0.6875rem;
  color: var(--color-muted);
}

/* Buttons */

.btn {
  display: inline-block;
  font-family: var(--font-family);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 14px 32px;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

/* Services */

.services {
  padding: 80px 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  border: 1px solid var(--color-light);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.15s;
}

.card:hover {
  border-color: var(--color-accent);
}

.card-icon {
  color: var(--color-accent);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.card p {
  font-size: 0.9375rem;
  margin-bottom: 16px;
}

.card-meta {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-muted);
}

/* Approach */

.approach {
  padding: 80px 0;
  background: var(--color-lighter);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step {
  text-align: center;
}

.step-number {
  width: 44px;
  height: 44px;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.875rem;
  line-height: 1.6;
}

/* Why Us */

.why-us {
  padding: 80px 0;
}

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.feature h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature p {
  font-size: 0.9375rem;
}

/* Contact */

.contact {
  padding: 80px 0;
  background: var(--color-lighter);
}

.contact-intro {
  margin-top: -24px;
  margin-bottom: 40px;
  font-size: 1.0625rem;
}

.form {
  max-width: 720px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  font-family: var(--font-family);
  font-size: 0.9375rem;
  padding: 10px 14px;
  border: 1px solid var(--color-light);
  border-radius: var(--radius);
  background: var(--color-white);
  color: var(--color-charcoal);
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea {
  resize: vertical;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%234a5568' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

/* Section CTA */

.section-cta {
  margin-top: 32px;
  font-size: 0.9375rem;
  color: var(--color-slate);
}

.section-cta a {
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: none;
}

.section-cta a:hover {
  text-decoration: underline;
}

/* Order page */

.order-page {
  padding: 120px 0 80px;
}

.order-page h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 12px;
}

.order-intro {
  font-size: 1.0625rem;
  color: var(--color-slate);
  max-width: 640px;
  margin-bottom: 48px;
}

.order-form {
  max-width: 720px;
}

.form-section {
  margin-bottom: 8px;
}

.form-section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-light);
}

.conditional {
  display: none;
}

.conditional.active {
  display: block;
}

/* Footer */

.footer {
  padding: 40px 0;
  border-top: 1px solid var(--color-light);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-logo {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy);
}

.footer-location {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--color-muted);
  max-width: 480px;
  text-align: right;
  line-height: 1.5;
}

/* Mobile */

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-light);
    flex-direction: column;
    padding: 16px 24px;
    gap: 16px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-cta {
    text-align: center;
  }

  .hero {
    padding: 110px 0 60px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-visual {
    justify-content: flex-start;
  }

  .report-mock {
    max-width: 100%;
  }

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

  .steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .features {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-disclaimer {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .report-summary {
    grid-template-columns: 1fr auto;
    gap: 4px 12px;
  }
}