/* DataField Chart Practice — Layer C theme */
:root {
  --color-ink: #1a2e38;
  --color-ink-light: #3d5a6c;
  --color-surface: #faf8f5;
  --color-surface-alt: #f0ebe3;
  --color-accent: #c4923a;
  --color-accent-dark: #9a7030;
  --color-teal: #1a3a4a;
  --color-teal-light: #2d5a6e;
  --color-border: #ddd5c8;
  --color-success: #2d6a4f;
  --color-error: #9b2c2c;
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-serif: 'Fraunces', Georgia, serif;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(26, 46, 56, 0.08);
  --shadow-lg: 0 12px 48px rgba(26, 46, 56, 0.12);
  --max-width: 1200px;
  --header-height: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-surface);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-teal-light); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-accent); }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.25;
  color: var(--color-ink);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.75rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

main { flex: 1; }

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-ink);
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.05rem;
}

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

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.main-nav a {
  color: var(--color-ink-light);
  font-size: 0.925rem;
  font-weight: 500;
}

.main-nav a:hover { color: var(--color-teal); }

.nav-cta {
  background: var(--color-teal);
  color: #fff !important;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius);
}

.nav-cta:hover {
  background: var(--color-teal-light);
  color: #fff !important;
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  transition: transform 0.3s, opacity 0.3s;
}

/* Footer */
.site-footer {
  background: var(--color-teal);
  color: rgba(255, 255, 255, 0.85);
  padding: 3.5rem 1rem 1.5rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2rem;
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-tagline { font-size: 0.9rem; opacity: 0.8; }

.footer-col h3 {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { color: rgba(255, 255, 255, 0.75); font-size: 0.9rem; }
.footer-col a:hover { color: #fff; }

.site-footer address { font-style: normal; font-size: 0.9rem; line-height: 1.7; }
.site-footer address a { color: rgba(255, 255, 255, 0.85); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
  padding-top: 1.5rem;
  font-size: 0.825rem;
  opacity: 0.7;
}

.footer-legal ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-legal a { color: rgba(255, 255, 255, 0.75); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.925rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-teal);
  color: #fff;
  border-color: var(--color-teal);
}

.btn-primary:hover {
  background: var(--color-teal-light);
  border-color: var(--color-teal-light);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-teal);
  border-color: var(--color-teal);
}

.btn-outline:hover {
  background: var(--color-teal);
  color: #fff;
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #fff;
}

/* Hero variants */
.hero {
  padding: 4rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background: var(--color-surface-alt);
  color: var(--color-teal);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.25rem;
}

.hero h1 { margin-bottom: 1.25rem; }

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-ink-light);
  max-width: 52ch;
  margin-bottom: 2rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 58, 74, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

/* Sections */
.section { padding: 4rem 0; }
.section-alt { background: var(--color-surface-alt); }

.section-header {
  max-width: 640px;
  margin-bottom: 2.5rem;
}

.section-header.centered {
  text-align: center;
  margin-inline: auto;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.25s, box-shadow 0.25s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

.card-body { padding: 1.5rem; }

.card-meta {
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card h3 a { color: var(--color-ink); }
.card h3 a:hover { color: var(--color-teal-light); }

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.testimonial {
  background: #fff;
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--color-accent);
  box-shadow: var(--shadow);
}

.testimonial blockquote {
  font-size: 0.975rem;
  font-style: italic;
  color: var(--color-ink-light);
  margin-bottom: 1rem;
}

.testimonial cite {
  font-style: normal;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
}

.testimonial-role {
  display: block;
  font-weight: 400;
  color: var(--color-ink-light);
  font-size: 0.8rem;
}

/* Process steps */
.process-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 2rem;
  counter-reset: step;
  list-style: none;
}

.process-list li {
  position: relative;
  padding-top: 3rem;
}

.process-list li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-accent);
  opacity: 0.6;
}

/* Forms */
.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-ink);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-teal-light);
  box-shadow: 0 0 0 3px rgba(45, 90, 110, 0.15);
}

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

.form-error {
  font-size: 0.825rem;
  color: var(--color-error);
  margin-top: 0.35rem;
  display: none;
}

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

.form-status {
  padding: 1rem;
  border-radius: var(--radius);
  margin-top: 1rem;
  display: none;
}

.form-status.success {
  display: block;
  background: #d8f3dc;
  color: var(--color-success);
}

.form-status.error {
  display: block;
  background: #fde8e8;
  color: var(--color-error);
}

.script-error {
  background: #fde8e8;
  color: var(--color-error);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin: 1rem 0;
  font-size: 0.875rem;
}

/* Page headers */
.page-hero {
  background: var(--color-teal);
  color: #fff;
  padding: 3.5rem 0;
}

.page-hero h1 { color: #fff; margin-bottom: 0.75rem; }
.page-hero p { opacity: 0.85; max-width: 60ch; font-size: 1.05rem; }

.page-hero-image {
  margin-top: -2rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

/* Content layout */
.content-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  padding: 3rem 0;
}

.prose { max-width: 72ch; }
.prose h2 { margin-top: 2rem; }
.prose ul, .prose ol { margin: 1rem 0 1rem 1.5rem; }
.prose li { margin-bottom: 0.5rem; }

.sidebar-box {
  background: var(--color-surface-alt);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  position: sticky;
  top: calc(var(--header-height) + 1rem);
}

.sidebar-box h3 { font-size: 1rem; margin-bottom: 1rem; }

/* Pricing table */
.pricing-block {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.pricing-block h3 { color: var(--color-teal); }

.price-tag {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-accent);
  margin: 0.5rem 0 1rem;
}

.price-note { font-size: 0.875rem; color: var(--color-ink-light); }

/* Schedule table */
.schedule-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.schedule-table th,
.schedule-table td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.schedule-table th {
  background: var(--color-teal);
  color: #fff;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.schedule-table tr:last-child td { border-bottom: none; }

/* Legal pages */
.legal-content {
  padding: 3rem 0 4rem;
  max-width: 780px;
}

.legal-content h2 {
  font-size: 1.35rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.legal-content h2:first-of-type { margin-top: 0; }

.cookies-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.cookies-table th,
.cookies-table td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  text-align: left;
}

.cookies-table th { background: var(--color-surface-alt); }

/* 404 */
.error-page {
  text-align: center;
  padding: 6rem 1rem;
}

.error-page h1 {
  font-size: 6rem;
  color: var(--color-accent);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: 1rem;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-teal);
  color: #fff;
  padding: 1.25rem;
  z-index: 1000;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
  transform: translateY(100%);
  transition: transform 0.35s ease;
}

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

.cookie-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.cookie-banner p {
  flex: 1;
  min-width: 240px;
  font-size: 0.9rem;
  margin: 0;
  opacity: 0.9;
}

.cookie-banner a { color: var(--color-accent); }

.cookie-actions { display: flex; gap: 0.75rem; }

.cookie-actions button {
  padding: 0.5rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  border: 2px solid transparent;
}

.cookie-accept {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.cookie-reject {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}

/* Feature strip */
.feature-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding: 2.5rem;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  margin-top: -3rem;
  position: relative;
  z-index: 2;
}

.feature-item h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.feature-item p {
  font-size: 0.875rem;
  color: var(--color-ink-light);
}

/* Blog */
.blog-meta {
  font-size: 0.85rem;
  color: var(--color-ink-light);
  margin-bottom: 1.5rem;
}

.article-cover {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 2rem;
}

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

/* Contact layout */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 3rem 0;
}

.contact-info address {
  font-style: normal;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.contact-info h3 { margin-top: 1.5rem; }

/* Service detail */
.service-detail-hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  padding: 3rem 0;
  align-items: start;
}

.detail-list {
  list-style: none;
  margin: 1.5rem 0;
}

.detail-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  font-size: 0.925rem;
}

.detail-list li strong { color: var(--color-teal); }

/* Responsive */
@media (max-width: 900px) {
  .hero-split,
  .footer-grid,
  .content-layout,
  .contact-grid,
  .service-detail-hero,
  .feature-strip {
    grid-template-columns: 1fr;
  }

  .feature-strip { margin-top: 2rem; }

  .nav-toggle { display: flex; }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
    pointer-events: none;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .main-nav li { border-bottom: 1px solid var(--color-border); }
  .main-nav a { display: block; padding: 0.85rem 0; }
}

@media (max-width: 600px) {
  .hero { padding: 2.5rem 0 3rem; }
  .section { padding: 2.5rem 0; }
}