:root {
  --gold: #B8860B;
  --gold-light: #C4A35A;
  --gold-dark: #8B6914;
  --brass: #A67C00;
  --walnut: #3D2B1F;
  --walnut-dark: #1A1612;
  --steel: #6B7280;
  --steel-light: #9CA3AF;
  --oxidized: #4A6741;
  --charcoal: #2C2C2C;
  --ivory: #F5F0E6;
  --ivory-muted: #E8DCC8;
  --cream: #FAF7F2;
  --error: #8B3A3A;
  --success: #4A6741;
  --font-display: "Cinzel", "Georgia", serif;
  --font-body: "Source Serif 4", "Georgia", serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --radius: 2px;
  --shadow-brass: 0 2px 8px rgba(184, 134, 11, 0.15);
  --transition-gear: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--charcoal);
  background: var(--cream);
  background-image:
    linear-gradient(rgba(184, 134, 11, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 134, 11, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}

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

a {
  color: var(--gold-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--brass);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  color: var(--walnut);
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.25rem; }

.container {
  width: min(1140px, 92vw);
  margin-inline: auto;
}

/* Header */
.site-header {
  background: var(--walnut-dark);
  border-bottom: 2px solid var(--gold);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  gap: var(--space-sm);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--ivory);
}

.logo-mark {
  width: 36px;
  height: 36px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  position: relative;
}

.logo-mark::before,
.logo-mark::after {
  content: "";
  position: absolute;
  background: var(--gold-light);
}

.logo-mark::before {
  width: 1px;
  height: 12px;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
}

.logo-mark::after {
  width: 8px;
  height: 1px;
  bottom: 10px;
  left: 50%;
  transform: translateX(-20%) rotate(45deg);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}

.logo-text span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gold-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--ivory);
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--ivory-muted);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--gold-light);
}

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

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--walnut-dark);
    border-bottom: 2px solid var(--gold);
    padding: var(--space-sm);
  }

  .main-nav.is-open { display: block; }

  .main-nav ul {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid var(--gold);
  background: var(--walnut);
  color: var(--ivory);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background var(--transition-gear), transform var(--transition-gear);
}

.btn::before {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border: 1px solid var(--gold-light);
  border-radius: 50%;
  top: 4px;
  right: 4px;
  opacity: 0.6;
  transition: transform var(--transition-gear);
}

.btn:hover {
  background: var(--gold-dark);
  transform: translateY(-1px);
}

.btn:hover::before {
  transform: rotate(90deg);
}

.btn:active {
  transform: translateY(0);
}

.btn-ghost {
  background: transparent;
  color: var(--walnut);
}

.btn-ghost:hover {
  background: var(--ivory-muted);
  color: var(--walnut-dark);
}

.btn-light {
  background: var(--gold);
  color: var(--walnut-dark);
  border-color: var(--gold-light);
}

/* Footer */
.site-footer {
  background: var(--walnut-dark);
  color: var(--ivory-muted);
  border-top: 3px solid var(--gold);
  margin-top: var(--space-xl);
  padding: var(--space-lg) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-lg);
}

.footer-grid h3 {
  color: var(--gold-light);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer-grid a {
  color: var(--ivory-muted);
  text-decoration: none;
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

.footer-grid a:hover { color: var(--gold-light); }

.footer-bottom {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(196, 163, 90, 0.3);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel-light);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-sm);
}

/* Hero */
.hero {
  padding: var(--space-xl) 0;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--oxidized);
  border: 1px solid var(--oxidized);
  display: inline-block;
  padding: 0.3rem 0.6rem;
  margin-bottom: var(--space-sm);
}

.hero h1 {
  margin-bottom: var(--space-sm);
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--steel);
  margin-bottom: var(--space-md);
  max-width: 36ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.hero-visual {
  position: relative;
  border: 2px solid var(--gold);
  background: var(--walnut-dark);
  padding: var(--space-sm);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  filter: sepia(15%) contrast(1.05);
}

.hero-visual::after {
  content: "FIG. 01 — UTILIZATION INDEX";
  position: absolute;
  bottom: calc(var(--space-sm) + 4px);
  right: calc(var(--space-sm) + 8px);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--gold-light);
  letter-spacing: 0.1em;
  background: rgba(26, 22, 18, 0.85);
  padding: 0.2rem 0.5rem;
}

/* Sections */
.section {
  padding: var(--space-xl) 0;
}

.section-alt {
  background: var(--ivory);
  border-top: 1px solid rgba(184, 134, 11, 0.2);
  border-bottom: 1px solid rgba(184, 134, 11, 0.2);
}

.section-header {
  margin-bottom: var(--space-lg);
  max-width: 640px;
}

.section-header .index {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.12em;
  display: block;
  margin-bottom: 0.5rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.card {
  background: var(--cream);
  border: 1px solid rgba(184, 134, 11, 0.35);
  box-shadow: var(--shadow-brass);
  transition: transform 0.25s, box-shadow 0.25s;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(184, 134, 11, 0.2);
}

.card-image img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  filter: sepia(10%);
}

.card-body {
  padding: var(--space-md);
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--steel);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.card p {
  margin: 0 0 var(--space-sm);
  font-size: 0.95rem;
  color: var(--steel);
}

.card-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--gold-dark);
}

/* Chart accent blocks */
.chart-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--gold);
  border: 2px solid var(--gold);
  margin: var(--space-lg) 0;
}

@media (max-width: 600px) {
  .chart-strip { grid-template-columns: repeat(2, 1fr); }
}

.chart-cell {
  background: var(--walnut-dark);
  padding: var(--space-md);
  text-align: center;
}

.chart-cell .value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--gold-light);
  display: block;
}

.chart-cell .label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--ivory-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Testimonials */
.testimonial {
  border-left: 3px solid var(--gold);
  padding: var(--space-md) var(--space-md) var(--space-md) var(--space-lg);
  background: var(--ivory);
  margin-bottom: var(--space-md);
}

.testimonial blockquote {
  margin: 0 0 var(--space-sm);
  font-style: italic;
}

.testimonial cite {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--steel);
  font-style: normal;
}

/* Page hero */
.page-hero {
  background: var(--walnut-dark);
  color: var(--ivory);
  padding: var(--space-lg) 0;
  border-bottom: 3px solid var(--gold);
}

.page-hero h1 {
  color: var(--ivory);
  margin-bottom: 0.5rem;
}

.page-hero p {
  color: var(--ivory-muted);
  max-width: 600px;
  margin: 0;
}

.page-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--gold-light);
  margin-bottom: var(--space-sm);
}

/* Content prose */
.prose {
  max-width: 720px;
}

.prose-wide {
  max-width: 900px;
}

.prose p { margin-bottom: 1rem; }

.prose ul, .prose ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

/* Forms */
.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  color: var(--walnut);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid rgba(184, 134, 11, 0.5);
  background: var(--cream);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--charcoal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-error {
  color: var(--error);
  font-size: 0.85rem;
  margin-top: 0.3rem;
  display: none;
}

.form-error.is-visible { display: block; }

.form-success {
  background: rgba(74, 103, 65, 0.1);
  border: 1px solid var(--oxidized);
  padding: var(--space-md);
  color: var(--oxidized);
  display: none;
}

.form-success.is-visible { display: block; }

.form-failure {
  background: rgba(139, 58, 58, 0.1);
  border: 1px solid var(--error);
  padding: var(--space-md);
  color: var(--error);
  display: none;
}

.form-failure.is-visible { display: block; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-xl);
  padding: var(--space-xl) 0;
}

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-details {
  background: var(--ivory);
  border: 1px solid rgba(184, 134, 11, 0.3);
  padding: var(--space-lg);
}

.contact-details h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-sm);
}

/* Pricing table */
.pricing-block {
  border: 2px solid var(--gold);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  background: var(--ivory);
}

.pricing-block h3 {
  margin-top: 0;
  border-bottom: 1px solid rgba(184, 134, 11, 0.3);
  padding-bottom: var(--space-sm);
}

.price-tag {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--gold-dark);
}

.price-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--walnut-dark);
  border-top: 2px solid var(--gold);
  padding: var(--space-md);
  z-index: 200;
  transform: translateY(100%);
  transition: transform 0.35s ease;
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: 1140px;
  margin: 0 auto;
  width: 92vw;
}

.cookie-banner p {
  margin: 0;
  color: var(--ivory-muted);
  font-size: 0.9rem;
  flex: 1;
  min-width: 240px;
}

.cookie-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.cookie-actions .btn {
  padding: 0.5rem 1rem;
  font-size: 0.7rem;
}

/* Service detail */
.service-detail-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-xl);
  padding: var(--space-xl) 0;
}

@media (max-width: 768px) {
  .service-detail-grid { grid-template-columns: 1fr; }
}

.service-sidebar {
  background: var(--ivory);
  border: 1px solid rgba(184, 134, 11, 0.35);
  padding: var(--space-lg);
  height: fit-content;
}

.service-sidebar dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: var(--space-sm);
}

.service-sidebar dd {
  margin: 0.25rem 0 0;
  color: var(--charcoal);
}

/* Blog */
.post-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.post-cover {
  margin: var(--space-lg) 0;
  border: 2px solid var(--gold);
}

.post-cover img {
  width: 100%;
  aspect-ratio: 21/9;
  object-fit: cover;
}

/* Report samples gallery */
.sample-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.sample-card {
  border: 1px solid rgba(184, 134, 11, 0.4);
  background: var(--walnut-dark);
  overflow: hidden;
}

.sample-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  opacity: 0.9;
}

.sample-card figcaption {
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold-light);
  letter-spacing: 0.06em;
}

/* 404 */
.error-page {
  text-align: center;
  padding: var(--space-xl) 0;
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-code {
  font-family: var(--font-display);
  font-size: 6rem;
  color: var(--gold);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

/* Legal pages */
.legal-content {
  padding: var(--space-xl) 0;
}

.legal-content h2 {
  margin-top: var(--space-lg);
  font-size: 1.3rem;
}

.legal-content h3 {
  margin-top: var(--space-md);
}

.cookie-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 0.9rem;
}

.cookie-table th,
.cookie-table td {
  border: 1px solid rgba(184, 134, 11, 0.35);
  padding: 0.6rem 0.8rem;
  text-align: left;
}

.cookie-table th {
  background: var(--ivory);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-md);
}

.team-member {
  text-align: center;
  border: 1px solid rgba(184, 134, 11, 0.3);
  padding: var(--space-md);
  background: var(--ivory);
}

.team-member img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--space-sm);
  border: 2px solid var(--gold);
  filter: sepia(15%);
}

.team-member h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.team-member p {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--steel);
  margin: 0;
}

/* Process steps */
.process-steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
}

.process-steps li {
  counter-increment: step;
  padding-left: 3rem;
  position: relative;
  margin-bottom: var(--space-md);
  border-left: 1px solid var(--gold);
  padding-bottom: var(--space-md);
  margin-left: 1rem;
}

.process-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: -1rem;
  top: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  background: var(--cream);
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--gold);
}