/* Oceans Edge Fitness - Layout, Nav & Grid System */
.top-nav {
  background: var(--brand-surface);
  border-bottom: 1px solid var(--brand-border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.brand-header-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.header-logo-img {
  height: 48px;
  width: auto;
  display: block;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.header-logo-link:hover .header-logo-img {
  transform: translateY(-1px);
  opacity: 0.9;
}

.brand-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--brand-secondary);
}

.brand-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--brand-primary);
}

.brand-subtitle {
  font-size: 13px;
  color: var(--brand-muted);
}

.controls-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.control-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.control-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--brand-muted);
  min-width: 65px;
}

.theme-switcher, .font-switcher {
  display: flex;
  background: var(--brand-bg);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--brand-border);
  gap: 3px;
  flex-wrap: wrap;
}

.switch-btn, .font-btn {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--brand-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-family: var(--brand-font-body);
}

.switch-btn.active, .font-btn.active {
  background: var(--brand-surface);
  color: var(--brand-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.main-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.section-intro, .section-block {
  margin-bottom: 40px;
}

.intro-card {
  background: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.intro-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.concept-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--brand-primary);
}

.concept-desc {
  color: var(--brand-muted);
  max-width: 900px;
  margin-bottom: 20px;
  font-size: 16px;
}

.concept-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--brand-border);
}

.meta-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-muted);
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.meta-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-text);
}

.section-header {
  margin-bottom: 16px;
}

.section-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--brand-secondary);
  display: block;
  margin-bottom: 4px;
}

.section-heading {
  font-size: 20px;
  font-weight: 700;
  color: var(--brand-primary);
}

/* Palette Swatches */
.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.swatch-card {
  background: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}

.swatch-color {
  height: 90px;
  width: 100%;
}

.swatch-details {
  padding: 12px 14px;
}

.swatch-role {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--brand-muted);
}

.swatch-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--brand-text);
  margin: 2px 0;
}

.swatch-hex {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--brand-muted);
}

/* Typography Hierarchy Card */
.typography-card {
  background: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.type-row {
  padding: 16px 0;
  border-bottom: 1px solid var(--brand-border);
}

.type-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.type-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-muted);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.display-sample { font-size: 28px; font-weight: 800; color: var(--brand-primary); line-height: 1.2; }
.h1-sample { font-size: 22px; font-weight: 700; color: var(--brand-primary); }
.h2-sample { font-size: 18px; font-weight: 600; color: var(--brand-primary); }
.body-sample { font-size: 15px; color: var(--brand-text); max-width: 800px; }

.footer-meta {
  border-top: 1px solid var(--brand-border);
  padding: 24px;
  text-align: center;
  font-size: 12px;
  color: var(--brand-muted);
}