/* Alderfield Analytics — Brass Mechanism theme */

:root {
  --color-gold: #B8860B;
  --color-gold-light: #D4AF37;
  --color-gold-dark: #8B6914;
  --color-walnut: #3D2B1F;
  --color-walnut-light: #5C4033;
  --color-steel: #6B7280;
  --color-steel-light: #9CA3AF;
  --color-oxidized: #5C6B4A;
  --color-charcoal: #1C1C1E;
  --color-charcoal-mid: #2A2A2C;
  --color-ivory: #F5F0E6;
  --color-ivory-dim: #E8E0D0;
  --color-tobacco: #6B4423;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;
  --font-serif: "Source Serif 4", Georgia, serif;
  --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-serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-ivory);
  background-color: var(--color-charcoal);
  background-image:
    linear-gradient(90deg, rgba(184, 134, 11, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(184, 134, 11, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

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

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

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

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-gold);
  color: var(--color-charcoal);
  z-index: 1000;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(180deg, var(--color-walnut) 0%, var(--color-charcoal-mid) 100%);
  border-bottom: 1px solid var(--color-gold-dark);
  box-shadow: var(--shadow-brass);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-gold-light);
  text-decoration: none;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.logo:hover {
  color: var(--color-ivory);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--color-gold-dark);
  padding: 8px 10px;
  cursor: pointer;
  border-radius: var(--radius);
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-gold-light);
  transition: transform 0.3s;
}

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

.nav-list a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-ivory-dim);
}

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

.nav-cta {
  padding: 0.4rem 0.9rem !important;
  border: 1px solid var(--color-gold) !important;
  color: var(--color-gold-light) !important;
}

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

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-walnut);
    border-bottom: 1px solid var(--color-gold-dark);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .site-nav.is-open {
    max-height: 400px;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-md);
  }
}

/* Footer */
.site-footer {
  margin-top: var(--space-xl);
  background: linear-gradient(0deg, var(--color-walnut) 0%, var(--color-charcoal-mid) 100%);
  border-top: 1px solid var(--color-gold-dark);
  padding: var(--space-xl) var(--space-md) var(--space-md);
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.footer-brand {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-gold-light);
  margin: 0 0 var(--space-xs);
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--color-steel-light);
  margin: 0;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin: 0 0 var(--space-sm);
}

.footer-address {
  font-style: normal;
  font-size: 0.9rem;
  line-height: 1.7;
}

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

.footer-links li {
  margin-bottom: 0.4rem;
}

.footer-links a {
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--color-ivory-dim);
}

.footer-bottom {
  max-width: 1200px;
  margin: var(--space-lg) auto 0;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(184, 134, 11, 0.2);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-steel);
}

/* Layout utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-oxidized);
  margin: 0 0 var(--space-sm);
}

.section-title {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-ivory);
  margin: 0 0 var(--space-md);
  letter-spacing: -0.02em;
}

.section-intro {
  max-width: 60ch;
  color: var(--color-steel-light);
  margin: 0 0 var(--space-lg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--color-gold);
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background var(--transition-gear), color var(--transition-gear), transform var(--transition-gear);
}

.btn::before {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid var(--color-gold-dark);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
  transition: opacity 0.2s, transform var(--transition-gear);
}

.btn:active::before {
  opacity: 0.4;
  transform: translate(-50%, -50%) rotate(90deg);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gold-dark), var(--color-gold));
  color: var(--color-charcoal);
  border-color: var(--color-gold-light);
}

.btn-primary:hover {
  background: var(--color-gold-light);
  color: var(--color-charcoal);
}

.btn-secondary {
  background: transparent;
  color: var(--color-gold-light);
}

.btn-secondary:hover {
  background: rgba(184, 134, 11, 0.15);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

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

.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-content {
  position: relative;
  z-index: 1;
}

.hero-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-gold);
  letter-spacing: 0.2em;
  margin-bottom: var(--space-sm);
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-ivory);
  margin: 0 0 var(--space-md);
  letter-spacing: -0.03em;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-steel-light);
  margin: 0 0 var(--space-lg);
  max-width: 48ch;
}

.hero-visual {
  position: relative;
}

.hero-image {
  border: 1px solid var(--color-gold-dark);
  box-shadow: var(--shadow-brass);
}

.hero-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.hero-frame {
  position: absolute;
  inset: -8px;
  border: 1px solid rgba(184, 134, 11, 0.3);
  pointer-events: none;
}

.hero-stats {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(184, 134, 11, 0.2);
}

.stat-item {
  font-family: var(--font-mono);
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-gold-light);
}

.stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-steel);
}

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

.card {
  background: var(--color-charcoal-mid);
  border: 1px solid rgba(184, 134, 11, 0.25);
  padding: var(--space-md);
  transition: border-color 0.3s, box-shadow 0.3s;
}

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

.card-image img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  margin-bottom: var(--space-sm);
  border: 1px solid var(--color-walnut-light);
}

.card h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin: 0 0 var(--space-xs);
  color: var(--color-ivory);
}

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

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-oxidized);
  letter-spacing: 0.05em;
}

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

/* Page hero */
.page-hero {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid rgba(184, 134, 11, 0.2);
  margin-bottom: var(--space-lg);
}

.page-hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin: 0;
  color: var(--color-ivory);
}

.page-hero p {
  margin: var(--space-sm) 0 0;
  color: var(--color-steel-light);
  max-width: 65ch;
}

/* Prose */
.prose {
  max-width: 70ch;
}

.prose h2 {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--color-gold-light);
  margin: var(--space-lg) 0 var(--space-sm);
}

.prose h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-ivory);
  margin: var(--space-md) 0 var(--space-xs);
}

.prose p,
.prose li {
  color: var(--color-steel-light);
}

.prose ul,
.prose ol {
  padding-left: var(--space-md);
}

.prose a {
  color: var(--color-gold-light);
}

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

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

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

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

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  background: var(--color-charcoal-mid);
  border: 1px solid var(--color-walnut-light);
  color: var(--color-ivory);
  border-radius: var(--radius);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 2px rgba(184, 134, 11, 0.2);
}

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

.form-error {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #E57373;
  margin-top: 0.25rem;
}

.form-success {
  padding: var(--space-md);
  background: rgba(92, 107, 74, 0.3);
  border: 1px solid var(--color-oxidized);
  color: var(--color-ivory);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.form-error-banner {
  padding: var(--space-md);
  background: rgba(229, 115, 115, 0.15);
  border: 1px solid #E57373;
  color: #E57373;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.field-invalid {
  border-color: #E57373 !important;
}

/* Pricing table */
.rate-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.rate-table th,
.rate-table td {
  padding: var(--space-sm);
  text-align: left;
  border-bottom: 1px solid rgba(184, 134, 11, 0.2);
}

.rate-table th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gold);
}

.rate-table td {
  color: var(--color-steel-light);
}

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

.process-step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(184, 134, 11, 0.15);
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-gold-dark);
  line-height: 1;
}

.process-step h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin: 0 0 var(--space-xs);
  color: var(--color-ivory);
}

.process-step p {
  margin: 0;
  color: var(--color-steel-light);
  font-size: 0.95rem;
}

/* Blog */
.blog-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-oxidized);
  margin-bottom: var(--space-sm);
}

.blog-cover {
  margin-bottom: var(--space-lg);
  border: 1px solid var(--color-gold-dark);
}

.blog-cover img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--color-walnut);
  border-top: 1px solid var(--color-gold);
  padding: var(--space-md);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.cookie-banner p {
  margin: 0;
  flex: 1;
  min-width: 250px;
  font-size: 0.9rem;
  color: var(--color-ivory-dim);
}

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

/* Legal pages */
.legal-content h2 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--color-gold-light);
  margin: var(--space-lg) 0 var(--space-sm);
}

.legal-content p,
.legal-content li {
  color: var(--color-steel-light);
}

.cookies-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 0.85rem;
}

.cookies-table th,
.cookies-table td {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid rgba(184, 134, 11, 0.2);
  text-align: left;
}

.cookies-table th {
  background: var(--color-charcoal-mid);
  font-family: var(--font-mono);
  color: var(--color-gold);
}

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

.error-code {
  font-family: var(--font-mono);
  font-size: 5rem;
  font-weight: 600;
  color: var(--color-gold-dark);
  margin: 0;
  line-height: 1;
}

.error-page h1 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  margin: var(--space-md) 0;
}

/* Contact layout */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

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

.contact-info address {
  font-style: normal;
  line-height: 1.8;
  color: var(--color-steel-light);
}

/* Chart accent decoration */
.chart-accent {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 40px;
  margin: var(--space-md) 0;
}

.chart-bar {
  width: 8px;
  background: linear-gradient(180deg, var(--color-gold-light), var(--color-gold-dark));
  border-radius: 1px 1px 0 0;
}

.chart-bar:nth-child(1) { height: 60%; }
.chart-bar:nth-child(2) { height: 85%; }
.chart-bar:nth-child(3) { height: 45%; }
.chart-bar:nth-child(4) { height: 70%; }
.chart-bar:nth-child(5) { height: 55%; }
.chart-bar:nth-child(6) { height: 90%; }

/* Service detail */
.service-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
}

@media (max-width: 900px) {
  .service-detail-grid {
    grid-template-columns: 1fr;
  }
}

.detail-sidebar {
  background: var(--color-charcoal-mid);
  border: 1px solid rgba(184, 134, 11, 0.25);
  padding: var(--space-md);
}

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

.detail-sidebar dt:first-child {
  margin-top: 0;
}

.detail-sidebar dd {
  margin: 0.25rem 0 0;
  color: var(--color-ivory-dim);
  font-size: 0.95rem;
}

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

.included-list li {
  padding: var(--space-xs) 0;
  padding-left: 1.2rem;
  position: relative;
  color: var(--color-steel-light);
}

.included-list li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: var(--color-gold-dark);
  font-size: 0.6rem;
  top: 0.65rem;
}

.case-study {
  background: var(--color-charcoal-mid);
  border: 1px solid rgba(184, 134, 11, 0.2);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
}

.case-study h3 {
  font-family: var(--font-mono);
  color: var(--color-gold-light);
  margin: 0 0 var(--space-sm);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-md);
}

.team-member img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--color-gold-dark);
  margin-bottom: var(--space-sm);
}

.team-member h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  margin: 0 0 0.25rem;
}

.team-member p {
  font-size: 0.85rem;
  color: var(--color-steel);
  margin: 0;
}