/* NodeFlow Chart Room — contemporary structured theme */
:root {
  --color-bg: #f7f5f0;
  --color-bg-alt: #eeeae3;
  --color-surface: #ffffff;
  --color-ink: #1a2332;
  --color-ink-muted: #4a5568;
  --color-accent: #c9a227;
  --color-accent-dark: #a8841f;
  --color-accent-soft: rgba(201, 162, 39, 0.12);
  --color-border: #d8d2c8;
  --color-success: #2d4a3e;
  --color-error: #8b3a3a;
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-display: "Instrument Serif", Georgia, serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(26, 35, 50, 0.06);
  --shadow-md: 0 4px 20px rgba(26, 35, 50, 0.08);
  --transition: 0.25s ease;
  --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-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a { color: var(--color-accent-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }

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

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: 1.35rem; margin-bottom: 0.75rem; }

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

ul, ol { padding-left: 1.25rem; margin-bottom: 1rem; }

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;
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 0 1rem;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-ink);
  text-decoration: none;
}

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

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.main-nav a {
  color: var(--color-ink-muted);
  font-size: 0.925rem;
  font-weight: 500;
  text-decoration: none;
}

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

.nav-cta {
  background: var(--color-ink);
  color: var(--color-bg) !important;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

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

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 1rem; }
}

/* Footer */
.site-footer {
  background: var(--color-ink);
  color: rgba(247, 245, 240, 0.85);
  padding: 3.5rem 1rem 1.5rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 0.8fr;
  gap: 2rem;
  max-width: var(--max-width);
  margin-inline: auto;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--color-bg);
  margin-bottom: 0.5rem;
}

.footer-tagline { font-size: 0.9rem; opacity: 0.75; }

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

.site-footer ul { list-style: none; padding: 0; }
.site-footer li { margin-bottom: 0.45rem; }

.site-footer a { color: rgba(247, 245, 240, 0.75); }
.site-footer a:hover { color: var(--color-accent); }

.site-footer address { font-style: normal; font-size: 0.9rem; line-height: 1.6; margin-bottom: 0.75rem; }

.footer-bottom {
  max-width: var(--max-width);
  margin: 2.5rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(247, 245, 240, 0.12);
  font-size: 0.85rem;
  opacity: 0.6;
  text-align: center;
}

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

@media (max-width: 480px) {
  .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-body);
  font-size: 0.925rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), transform 0.15s ease;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--color-ink);
  color: var(--color-bg);
}

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

.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border: 1.5px solid var(--color-ink);
}

.btn-outline:hover {
  background: var(--color-ink);
  color: var(--color-bg);
}

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

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

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

.hero-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-dark);
  margin-bottom: 1rem;
  padding: 0.35rem 0.75rem;
  background: var(--color-accent-soft);
  border-radius: var(--radius-sm);
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--color-ink-muted);
  max-width: 42ch;
  margin: 1.25rem 0 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-md);
}

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

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(201, 162, 39, 0.3);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.hero-compact {
  text-align: center;
  padding: 3.5rem 0;
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 60%);
}

.hero-compact h1 { max-width: 18ch; margin-inline: auto; }
.hero-compact .hero-lead { margin-inline: auto; }

.page-hero {
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 3rem;
}

.page-hero h1 { margin-bottom: 0.75rem; }
.page-hero p { color: var(--color-ink-muted); max-width: 55ch; }

@media (max-width: 768px) {
  .hero-split { grid-template-columns: 1fr; }
  .hero { padding: 2.5rem 0 3rem; }
}

/* Sections */
.section { padding: 4rem 0; }
.section-alt { background: var(--color-bg-alt); }
.section-header { margin-bottom: 2.5rem; max-width: 52ch; }
.section-label {
  font-size: 0.75rem;
  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(280px, 1fr));
  gap: 1.5rem;
}

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

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.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-ink-muted);
  margin-bottom: 0.5rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.card-link {
  display: inline-block;
  margin-top: 1rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent-dark);
}

/* Feature row */
.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-item {
  padding: 1.75rem;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
}

.feature-item h3 { font-family: var(--font-body); font-weight: 600; font-size: 1.05rem; }
.feature-item p { font-size: 0.925rem; color: var(--color-ink-muted); margin: 0; }

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

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

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

.testimonial blockquote {
  font-size: 0.95rem;
  font-style: italic;
  margin-bottom: 1rem;
  color: var(--color-ink-muted);
}

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

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

.story-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin-top: 2.5rem;
}

.story-block h3 { font-family: var(--font-display); font-size: 1.5rem; }

/* Pricing */
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.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-bg-alt);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.pricing-note {
  background: var(--color-accent-soft);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  margin-top: 2rem;
  font-size: 0.925rem;
}

.price-highlight {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-ink);
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
  transition: border-color var(--transition);
}

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

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

.form-error {
  font-size: 0.8rem;
  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 1.25rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(45, 74, 62, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(45, 74, 62, 0.25);
}

.form-status.error {
  display: block;
  background: rgba(139, 58, 58, 0.08);
  color: var(--color-error);
  border: 1px solid rgba(139, 58, 58, 0.2);
}

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

.contact-info address {
  font-style: normal;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

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

/* Blog */
.article-list .card { display: flex; flex-direction: column; }
.article-meta { font-size: 0.8rem; color: var(--color-ink-muted); }

.article-content {
  max-width: 680px;
  margin: 0 auto;
}

.article-content h2 { margin-top: 2rem; margin-bottom: 0.75rem; }
.article-content p { margin-bottom: 1.25rem; }
.article-content img {
  border-radius: var(--radius-md);
  margin: 2rem 0;
}

.article-header { margin-bottom: 2.5rem; }
.article-header time { font-size: 0.85rem; color: var(--color-ink-muted); }

/* Legal */
.legal-content {
  max-width: 720px;
  margin: 0 auto;
  padding-bottom: 4rem;
}

.legal-content h2 {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.legal-content p, .legal-content li { font-size: 0.95rem; color: var(--color-ink-muted); }

.cookies-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.875rem;
}

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

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

/* Workshop calendar */
.calendar-grid {
  display: grid;
  gap: 1rem;
}

.calendar-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.calendar-date {
  text-align: center;
  padding: 0.75rem;
  background: var(--color-accent-soft);
  border-radius: var(--radius-sm);
}

.calendar-date .day {
  font-family: var(--font-display);
  font-size: 1.75rem;
  line-height: 1;
  color: var(--color-ink);
}

.calendar-date .month {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.calendar-status {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
}

.status-open { background: rgba(45, 74, 62, 0.12); color: var(--color-success); }
.status-limited { background: var(--color-accent-soft); color: var(--color-accent-dark); }
.status-full { background: rgba(74, 85, 104, 0.12); color: var(--color-ink-muted); }

@media (max-width: 640px) {
  .calendar-item { grid-template-columns: 1fr; text-align: center; }
}

/* Service detail */
.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 3rem;
  align-items: start;
}

.service-sidebar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
}

.service-sidebar dl { margin-bottom: 1.5rem; }
.service-sidebar dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  margin-bottom: 0.25rem;
}
.service-sidebar dd {
  font-weight: 500;
  margin-bottom: 1rem;
  margin-left: 0;
}

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

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

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

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--color-ink);
  color: var(--color-bg);
  padding: 1.25rem 1.5rem;
  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 {
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cookie-text {
  flex: 1;
  min-width: 240px;
  font-size: 0.9rem;
  opacity: 0.9;
}

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

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

.cookie-actions .btn {
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
}

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

.btn-cookie-reject {
  background: transparent;
  color: var(--color-bg);
  border: 1px solid rgba(247, 245, 240, 0.35);
}

.btn-cookie-reject:hover { border-color: var(--color-bg); }

/* Utility */
.text-muted { color: var(--color-ink-muted); }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }
.script-error {
  background: rgba(139, 58, 58, 0.08);
  color: var(--color-error);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin: 0.5rem 0;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  margin-bottom: 1.5rem;
}

.breadcrumb a { color: var(--color-ink-muted); }
.breadcrumb a:hover { color: var(--color-accent-dark); }