:root {
  --color-brass: #c9a227;
  --color-brass-light: #ddb94a;
  --color-brass-dark: #9a7b1a;
  --color-walnut: #3d2e1f;
  --color-walnut-deep: #2a2318;
  --color-steel: #6b7a82;
  --color-steel-light: #8a969c;
  --color-oxidized: #6b8f71;
  --color-charcoal: #1e1c19;
  --color-ivory: #f5f0e6;
  --color-ivory-muted: #e8e0d0;
  --color-tobacco: #5c4033;
  --color-error: #8b3a3a;
  --color-success: #4a6b4e;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  --radius-sm: 2px;
  --radius-md: 4px;
  --max-width: 72rem;
  --header-height: 4.5rem;

  --shadow-brass: 0 2px 8px rgba(201, 162, 39, 0.15);
  --transition-gear: 0.4s cubic-bezier(0.34, 1.2, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--color-charcoal);
  background: var(--color-ivory);
  background-image:
    linear-gradient(rgba(201, 162, 39, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 162, 39, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
}

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

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-walnut);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.625rem); }

p { margin: 0 0 var(--space-md); }

ul, ol { margin: 0 0 var(--space-md); padding-left: var(--space-lg); }

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-walnut);
  color: var(--color-ivory);
  padding: var(--space-sm) var(--space-md);
  z-index: 9999;
}

.skip-link:focus {
  top: var(--space-md);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-walnut-deep);
  border-bottom: 1px solid var(--color-brass-dark);
  height: var(--header-height);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

.logo-mark {
  color: var(--color-brass);
}

.logo-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.3;
}

.logo-text small {
  color: var(--color-steel-light);
  font-weight: 400;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 1px solid var(--color-brass-dark);
  padding: var(--space-sm);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-brass);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ivory-muted);
  text-decoration: none;
}

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

.nav-cta {
  border: 1px solid var(--color-brass);
  padding: var(--space-sm) var(--space-md) !important;
}

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

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-walnut-deep);
    padding: var(--space-lg);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid var(--color-brass-dark);
  }

  .site-nav.is-open { transform: translateY(0); }

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: color var(--transition-gear), border-color var(--transition-gear), background var(--transition-gear);
}

.btn::before {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid currentColor;
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--transition-gear), transform var(--transition-gear);
}

.btn:hover::before,
.btn:focus-visible::before {
  opacity: 0.4;
  transform: rotate(90deg);
}

.btn-primary {
  background: var(--color-brass);
  color: var(--color-walnut-deep);
  border-color: var(--color-brass-dark);
}

.btn-primary:hover {
  background: var(--color-brass-light);
  color: var(--color-walnut-deep);
}

.btn-secondary {
  background: transparent;
  color: var(--color-walnut);
  border-color: var(--color-tobacco);
}

.btn-secondary:hover {
  border-color: var(--color-brass);
  color: var(--color-brass-dark);
}

.btn-gear-spin:active {
  animation: gear-lock 0.4s ease;
}

@keyframes gear-lock {
  0% { transform: rotate(0deg); }
  50% { transform: rotate(8deg); }
  100% { transform: rotate(0deg); }
}

/* Layout utilities */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-2xl) 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-steel);
  margin-bottom: var(--space-sm);
}

.section-label::before {
  content: '§ ';
  color: var(--color-brass);
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  padding: var(--space-3xl) 0 var(--space-2xl);
  border-bottom: 1px solid var(--color-ivory-muted);
}

.hero-content {
  padding-right: var(--space-lg);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-oxidized);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

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

.hero-lead {
  font-size: 1.25rem;
  color: var(--color-tobacco);
  margin-bottom: var(--space-xl);
}

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

.hero-visual {
  position: relative;
}

.hero-chart-frame {
  background: var(--color-walnut-deep);
  border: 2px solid var(--color-brass-dark);
  padding: var(--space-lg);
  position: relative;
}

.hero-chart-frame::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
  border: 1px solid rgba(201, 162, 39, 0.3);
  pointer-events: none;
}

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

.chart-overlay {
  position: absolute;
  bottom: var(--space-lg);
  left: var(--space-lg);
  right: var(--space-lg);
  background: rgba(42, 35, 24, 0.92);
  border: 1px solid var(--color-brass-dark);
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-ivory-muted);
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 48px;
  margin-top: var(--space-sm);
}

.chart-bar {
  flex: 1;
  background: linear-gradient(to top, var(--color-brass-dark), var(--color-brass));
  min-height: 8px;
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    padding: var(--space-2xl) 0;
  }

  .hero-content { padding-right: 0; }
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.card {
  background: #fff;
  border: 1px solid var(--color-ivory-muted);
  border-top: 3px solid var(--color-brass);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: var(--shadow-brass);
}

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

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

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-steel);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.card h3 {
  margin: 0 0 var(--space-sm);
  font-size: 1.25rem;
}

.card p {
  font-size: 1rem;
  color: var(--color-tobacco);
}

.card-link {
  display: inline-block;
  margin-top: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Instrument panel */
.instrument-panel {
  background: var(--color-walnut-deep);
  color: var(--color-ivory);
  padding: var(--space-2xl);
  border: 1px solid var(--color-brass-dark);
  position: relative;
}

.instrument-panel::after {
  content: '';
  position: absolute;
  top: 12px;
  right: 12px;
  width: 24px;
  height: 24px;
  border: 1px solid var(--color-brass);
  border-radius: 50%;
}

.instrument-panel h2 {
  color: var(--color-brass);
}

.instrument-panel p {
  color: var(--color-ivory-muted);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.stat-item {
  border-left: 2px solid var(--color-brass);
  padding-left: var(--space-md);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-brass);
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-steel-light);
}

/* Testimonials */
.testimonial {
  background: #fff;
  border: 1px solid var(--color-ivory-muted);
  padding: var(--space-xl);
  position: relative;
}

.testimonial::before {
  content: '"';
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--color-brass);
  opacity: 0.3;
  position: absolute;
  top: 0;
  left: var(--space-md);
  line-height: 1;
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--space-md);
  padding-top: var(--space-lg);
}

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

/* Page header */
.page-header {
  padding: var(--space-2xl) 0 var(--space-xl);
  border-bottom: 1px solid var(--color-ivory-muted);
  background: linear-gradient(180deg, rgba(61, 46, 31, 0.04) 0%, transparent 100%);
}

.page-header h1 {
  margin-bottom: var(--space-md);
}

.page-intro {
  font-size: 1.2rem;
  color: var(--color-tobacco);
  max-width: 42rem;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem var(--space-md);
  font-family: var(--font-display);
  font-size: 1rem;
  border: 1px solid var(--color-ivory-muted);
  background: #fff;
  color: var(--color-charcoal);
  transition: border-color 0.2s;
}

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

.form-group input.is-invalid,
.form-group select.is-invalid,
.form-group textarea.is-invalid {
  border-color: var(--color-error);
}

.field-error {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-error);
  margin-top: var(--space-xs);
  display: none;
}

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

.form-status {
  padding: var(--space-md);
  margin-top: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  display: none;
}

.form-status.is-success {
  display: block;
  background: rgba(74, 107, 78, 0.1);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.form-status.is-error {
  display: block;
  background: rgba(139, 58, 58, 0.1);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}

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

.contact-info address {
  font-style: normal;
}

.contact-info p {
  margin-bottom: var(--space-sm);
}

/* Process steps */
.process-steps {
  counter-reset: step;
}

.process-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-ivory-muted);
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-brass);
  line-height: 1;
}

/* Pricing table */
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-xl) 0;
}

.pricing-table th,
.pricing-table td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-ivory-muted);
}

.pricing-table th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-steel);
  background: rgba(61, 46, 31, 0.04);
}

.pricing-table td:last-child {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-brass-dark);
  white-space: nowrap;
}

/* Legal prose */
.legal-content {
  max-width: 48rem;
}

.legal-content h2 {
  margin-top: var(--space-xl);
  font-size: 1.375rem;
}

.legal-content h3 {
  margin-top: var(--space-lg);
  font-size: 1.125rem;
}

.cookie-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  font-size: 0.9375rem;
}

.cookie-table th,
.cookie-table td {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-ivory-muted);
  text-align: left;
}

.cookie-table th {
  background: rgba(61, 46, 31, 0.06);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
}

/* Footer */
.site-footer {
  background: var(--color-walnut-deep);
  color: var(--color-ivory-muted);
  padding: var(--space-2xl) 0 var(--space-lg);
  margin-top: var(--space-2xl);
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-brass);
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  font-size: 0.9375rem;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brass);
  margin: 0 0 var(--space-md);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a,
.site-footer address a {
  color: var(--color-ivory-muted);
  text-decoration: none;
  font-size: 0.9375rem;
}

.footer-links a:hover,
.site-footer address a:hover {
  color: var(--color-brass);
}

.site-footer address {
  font-style: normal;
  font-size: 0.9375rem;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: var(--space-xl) auto 0;
  padding: var(--space-lg) var(--space-lg) 0;
  border-top: 1px solid rgba(201, 162, 39, 0.2);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-steel);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-walnut-deep);
  border-top: 2px solid var(--color-brass);
  padding: var(--space-lg);
  z-index: 200;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

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

.cookie-inner p {
  margin: 0;
  flex: 1;
  min-width: 240px;
  font-size: 0.9375rem;
  color: var(--color-ivory-muted);
}

.cookie-inner a {
  color: var(--color-brass);
}

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

/* 404 */
.error-page {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
}

.error-code {
  font-family: var(--font-mono);
  font-size: 6rem;
  color: var(--color-brass);
  line-height: 1;
  margin-bottom: var(--space-md);
}

/* Blog article */
.article-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-steel);
  margin-bottom: var(--space-lg);
}

.article-cover {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  margin-bottom: var(--space-xl);
  border: 1px solid var(--color-ivory-muted);
}

.article-body p {
  margin-bottom: var(--space-lg);
}

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

.tag-list li {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-ivory-muted);
  color: var(--color-steel);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

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

.case-study {
  background: rgba(61, 46, 31, 0.04);
  padding: var(--space-xl);
  border-left: 3px solid var(--color-oxidized);
  margin: var(--space-xl) 0;
}

.service-detail-hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

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

.detail-list {
  list-style: none;
  padding: 0;
}

.detail-list li {
  padding: var(--space-sm) 0;
  padding-left: var(--space-lg);
  position: relative;
  border-bottom: 1px solid var(--color-ivory-muted);
}

.detail-list li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--color-brass);
  font-size: 0.5rem;
  top: 0.85rem;
}