/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo {
  width: auto;
  height: 40px;
  object-fit: contain;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-toggle {
  display: none;
  width: var(--touch-min);
  height: var(--touch-min);
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.nav-toggle-bars {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  position: relative;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--color-text);
}

.nav-toggle-bars::before {
  top: -6px;
}

.nav-toggle-bars::after {
  top: 6px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav a {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  padding: 6px 0;
}

.site-nav a:hover {
  color: var(--color-text);
}

/* Main */
.site-main {
  position: relative;
  background-color: var(--color-bg);
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 24px 24px;
  padding: var(--space-2xl) 0 var(--space-xl);
  min-height: 60vh;
}

.main-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.hero {
  text-align: center;
  max-width: 780px;
  margin: 0 auto var(--space-xl);
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: var(--space-sm);
}

.hero-lead {
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  color: var(--color-text-secondary);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-xl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-logo {
  height: 36px;
  width: auto;
  object-fit: contain;
}

.footer-company {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  max-width: 320px;
}

.footer-col h2 {
  font-size: 0.95rem;
  margin-bottom: var(--space-sm);
}

.footer-col a {
  display: block;
  font-size: 0.875rem;
  padding: 4px 0;
  color: var(--color-text-secondary);
}

.footer-col a:hover {
  color: var(--color-text);
}

.footer-bottom {
  max-width: var(--content-max);
  margin: var(--space-lg) auto 0;
  padding: var(--space-md) var(--space-md) 0;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* Workspace grid */
.workspace {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-lg);
  align-items: start;
}

.preview-panel,
.controls-panel {
  min-width: 0;
}