/* Linkfieldhub — contemporary structure with warm chart-inspired accents */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&family=Instrument+Serif:ital@0;1&display=swap');

:root {
  --color-ink: #1a2744;
  --color-ink-soft: #3d4f6f;
  --color-paper: #f7f5f0;
  --color-paper-warm: #efeae0;
  --color-accent: #c9a227;
  --color-accent-dark: #a6851f;
  --color-success: #2d6a4f;
  --color-error: #9b2c2c;
  --color-border: #d4cfc4;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-soft: 0 4px 24px rgba(26, 39, 68, 0.08);
  --shadow-card: 0 8px 32px rgba(26, 39, 68, 0.1);
  --max-width: 1120px;
  --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: 1.0625rem;
  line-height: 1.65;
  color: var(--color-ink-soft);
  background: var(--color-paper);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a { color: var(--color-ink); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--color-accent-dark); }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--color-ink);
  line-height: 1.2;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: 1.375rem; 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(247, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.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: 0.625rem;
  text-decoration: none;
  color: var(--color-ink);
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  letter-spacing: -0.02em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  transition: transform 0.2s, opacity 0.2s;
}

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

.main-nav a {
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  transition: color 0.2s;
}

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

.main-nav .nav-cta {
  background: var(--color-ink);
  color: var(--color-paper);
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius-sm);
}

.main-nav .nav-cta:hover {
  background: var(--color-accent-dark);
  color: var(--color-paper);
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: var(--color-paper);
    padding: 2rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* Footer */
.site-footer {
  background: var(--color-ink);
  color: rgba(247, 245, 240, 0.75);
  padding: 3.5rem 0 0;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(247, 245, 240, 0.12);
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-paper);
  display: block;
  margin-bottom: 0.75rem;
}

.footer-brand p { font-size: 0.9375rem; line-height: 1.6; }

.footer-col h3 {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-paper);
  margin-bottom: 1rem;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a {
  color: rgba(247, 245, 240, 0.75);
  text-decoration: none;
  font-size: 0.9375rem;
}
.footer-col a:hover { color: var(--color-accent); }

.footer-contact address { font-style: normal; font-size: 0.9375rem; }
.footer-contact a { color: rgba(247, 245, 240, 0.75); text-decoration: none; }
.footer-contact a:hover { color: var(--color-accent); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 0;
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
  font-size: 0.8125rem;
}

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

.footer-legal a {
  color: rgba(247, 245, 240, 0.6);
  text-decoration: none;
}
.footer-legal a:hover { color: var(--color-accent); }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* 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: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
  background: var(--color-ink);
  color: var(--color-paper);
  border-color: var(--color-ink);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-paper);
}

.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}
.btn-outline:hover {
  background: var(--color-ink);
  color: var(--color-paper);
}

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

/* 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-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-dark);
  margin-bottom: 1rem;
}

.hero-lead {
  font-size: 1.1875rem;
  line-height: 1.7;
  margin: 1.25rem 0 2rem;
  max-width: 52ch;
}

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

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

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

.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(26, 39, 68, 0.08);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.hero-accent-block {
  background: var(--color-ink);
  color: var(--color-paper);
  padding: 5rem 0;
}

.hero-accent-block h1 { color: var(--color-paper); }
.hero-accent-block .hero-lead { color: rgba(247, 245, 240, 0.8); }

@media (max-width: 768px) {
  .hero-split { grid-template-columns: 1fr; }
  .hero { padding: 2.5rem 0 3.5rem; }
}

/* Sections */
.section {
  padding: 4rem 0;
}

.section-alt {
  background: var(--color-paper-warm);
}

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

.section-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-dark);
  margin-bottom: 0.5rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
}

.card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--color-border);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

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

.card-body { padding: 1.5rem; }

.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent-dark);
  margin-bottom: 0.5rem;
}

.card h3 { font-size: 1.25rem; }
.card p { font-size: 0.9375rem; margin-bottom: 1rem; }

.card-link {
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-ink);
}
.card-link:hover { color: var(--color-accent-dark); }

/* Feature list */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2rem;
  list-style: none;
}

.feature-list li {
  padding-left: 1.5rem;
  border-left: 3px solid var(--color-accent);
}

.feature-list strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  color: var(--color-ink);
  margin-bottom: 0.375rem;
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
}

.testimonial {
  background: #fff;
  padding: 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.testimonial blockquote {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  font-style: italic;
}

.testimonial cite {
  font-style: normal;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-ink);
}

.testimonial .context {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-ink-soft);
  margin-top: 0.25rem;
}

/* Page header */
.page-header {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
}

.page-header p {
  font-size: 1.125rem;
  max-width: 640px;
  margin-top: 0.75rem;
}

.breadcrumb {
  font-size: 0.8125rem;
  margin-bottom: 1rem;
  color: var(--color-ink-soft);
}
.breadcrumb a { color: var(--color-ink-soft); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-ink); }

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.375rem;
  color: var(--color-ink);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--color-ink);
  transition: border-color 0.2s;
}

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

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

.form-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: 0.375rem;
  display: none;
}
.form-group.is-invalid .form-error { display: block; }
.form-group.is-invalid input,
.form-group.is-invalid select,
.form-group.is-invalid textarea {
  border-color: var(--color-error);
}

.form-status {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.success {
  background: rgba(45, 106, 79, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(45, 106, 79, 0.3);
}
.form-status.error {
  background: rgba(155, 44, 44, 0.08);
  color: var(--color-error);
  border: 1px solid rgba(155, 44, 44, 0.25);
}

.form-script-error {
  background: rgba(155, 44, 44, 0.08);
  color: var(--color-error);
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  display: none;
}
.form-script-error.is-visible { display: block; }

/* Contact layout */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contact-details {
  background: var(--color-paper-warm);
  padding: 2rem;
  border-radius: var(--radius-md);
}

.contact-details h2 { font-size: 1.5rem; }
.contact-details address { font-style: normal; margin-top: 1.5rem; }
.contact-details p { margin-bottom: 0.75rem; }

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

/* Pricing */
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

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

.pricing-table th {
  background: var(--color-ink);
  color: var(--color-paper);
  font-weight: 500;
  font-size: 0.875rem;
}

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

.pricing-note {
  background: var(--color-paper-warm);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  margin: 2rem 0;
}

/* Legal pages */
.legal-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.legal-content h2 {
  font-size: 1.375rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.legal-content ul, .legal-content ol {
  margin: 0.75rem 0 1rem 1.5rem;
}

.legal-content li { margin-bottom: 0.375rem; }

/* Cookie table */
.cookie-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
}

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

.cookie-table th {
  background: var(--color-paper-warm);
  font-weight: 600;
}

/* Blog */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.blog-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.blog-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.blog-card-content { padding: 1.5rem; }

.blog-meta {
  font-size: 0.8125rem;
  color: var(--color-ink-soft);
  margin-bottom: 0.5rem;
}

.article-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.article-content h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
}

.article-content img {
  border-radius: var(--radius-md);
  margin: 2rem 0;
}

.article-hero img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}

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

.service-hero img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.service-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin: 2rem 0;
  font-size: 0.9375rem;
}

.service-meta dt {
  font-weight: 600;
  color: var(--color-ink);
}

.service-meta dd { color: var(--color-ink-soft); }

.content-columns {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

.sidebar-box {
  background: var(--color-paper-warm);
  padding: 1.75rem;
  border-radius: var(--radius-md);
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
}

@media (max-width: 768px) {
  .service-hero, .content-columns { grid-template-columns: 1fr; }
  .sidebar-box { position: static; }
}

/* Setup guide (custom page) */
.setup-grid {
  display: grid;
  gap: 2.5rem;
}

.setup-item {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 2rem;
  align-items: center;
  padding: 2rem 0;
  border-bottom: 1px solid var(--color-border);
}

.setup-item:nth-child(even) { direction: rtl; }
.setup-item:nth-child(even) > * { direction: ltr; }

.setup-item img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.setup-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  .setup-item, .setup-item:nth-child(even) {
    grid-template-columns: 1fr;
    direction: ltr;
  }
}

/* 404 */
.error-page {
  text-align: center;
  padding: 6rem 0;
}

.error-code {
  font-family: var(--font-serif);
  font-size: 6rem;
  color: var(--color-accent);
  line-height: 1;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--color-ink);
  color: var(--color-paper);
  padding: 1.25rem;
  transform: translateY(100%);
  transition: transform 0.3s ease;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.15);
}

.cookie-banner.is-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-inner p {
  flex: 1;
  min-width: 240px;
  font-size: 0.9375rem;
  margin: 0;
  color: rgba(247, 245, 240, 0.85);
}

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

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

.cookie-actions button {
  padding: 0.5rem 1.125rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
}

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

.cookie-reject {
  background: transparent;
  color: var(--color-paper);
  border-color: rgba(247, 245, 240, 0.4);
}

.cookie-accept:hover { background: var(--color-accent-dark); }
.cookie-reject:hover { border-color: var(--color-paper); }

/* Include error */
.include-error {
  background: rgba(155, 44, 44, 0.08);
  color: var(--color-error);
  padding: 1rem;
  text-align: center;
  font-size: 0.875rem;
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2rem;
}

.team-member img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.team-member h3 { font-size: 1.125rem; }
.team-member .role {
  font-size: 0.875rem;
  color: var(--color-accent-dark);
  margin-bottom: 0.5rem;
}

/* Stats strip - qualitative not fake metrics */
.evidence-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  margin-top: 2rem;
}

.evidence-item strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-ink);
}

.evidence-item span {
  font-size: 0.875rem;
  color: var(--color-ink-soft);
}