/* Help page styles — layered on top of main.css */

.help-page {
  background-color: var(--color-bg);
  min-height: 100vh;
}

/* Sticky page header (smaller than landing hero) */
.help-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-bg-translucent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.help-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

.help-header .brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.help-header .brand img {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
}

.help-header .brand .wordmark {
  font-weight: 700;
  font-size: 1.1rem;
}

.help-header .brand .wordmark .accent {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  color: transparent;
}

.help-header .header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.help-header a.home-link {
  font-size: 0.9rem;
  color: var(--color-blue);
  font-weight: 500;
}

.help-header a.home-link:hover {
  text-decoration: underline;
}

@media (max-width: 600px) {
  .help-header a.home-link {
    display: none;
  }
}

/* Welcome banner */
.welcome-banner {
  position: relative;
  margin: var(--spacing-lg) 0 0;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  background: var(--gradient-brand);
  color: white;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.welcome-banner h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.welcome-banner p {
  opacity: 0.95;
  font-size: 1.05rem;
  max-width: 60ch;
}

/* Two-column layout: sticky TOC + content */
.help-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
  align-items: start;
}

.help-nav {
  position: sticky;
  top: 5rem;
  padding: var(--spacing-md) 0;
}

.help-nav h4 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  opacity: 0.5;
  margin-bottom: var(--spacing-sm);
}

.help-nav ol {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.help-nav a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  opacity: 0.75;
  transition: background-color 0.15s ease, opacity 0.15s ease, color 0.15s ease;
}

.help-nav a:hover {
  background: var(--color-overlay-weak);
  opacity: 1;
}

.help-nav a.active {
  background: rgba(156, 81, 255, 0.08);
  opacity: 1;
  font-weight: 600;
  background-image: var(--gradient-brand);
  -webkit-background-clip: text;
  color: transparent;
}

/* Content column prose styles (scoped) */
.help-content {
  max-width: 72ch;
  padding-bottom: var(--spacing-xl);
}

.help-content section {
  scroll-margin-top: 5rem;
  margin-bottom: var(--spacing-xl);
}

.help-content h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  color: transparent;
  display: inline-block;
}

.help-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.help-content p,
.help-content li {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  opacity: 0.88;
}

.help-content p {
  margin-bottom: var(--spacing-sm);
}

.help-content ul,
.help-content ol {
  margin: var(--spacing-sm) 0 var(--spacing-md) 1.25rem;
}

.help-content li {
  margin-bottom: 0.35rem;
}

.help-content a {
  color: var(--color-blue);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.help-content a:hover {
  color: var(--color-purple);
}

.help-content code,
.help-content kbd {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  font-size: 0.9em;
}

.help-content code {
  padding: 0.1em 0.35em;
  background: var(--color-overlay-weak);
  border-radius: 4px;
}

/* Keyboard chip */
kbd {
  display: inline-block;
  min-width: 1.5em;
  padding: 0.15em 0.5em;
  border-radius: 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: 0 1px 0 var(--color-overlay-medium);
  font-size: 0.85em;
  font-weight: 600;
  text-align: center;
  color: var(--color-text);
}

.kbd-group {
  display: inline-flex;
  gap: 0.25em;
  align-items: center;
  white-space: nowrap;
}

/* Tip callout */
.tip {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-sm) var(--spacing-md);
  border-left: 3px solid var(--color-purple);
  background: rgba(156, 81, 255, 0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.tip p {
  margin: 0;
  font-size: 0.95rem;
}

.tip strong {
  color: var(--color-purple);
}

/* Shortcut table */
.shortcut-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-sm) 0 var(--spacing-md);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.shortcut-table caption {
  text-align: left;
  font-weight: 600;
  font-size: 1rem;
  padding: var(--spacing-sm) 0;
  caption-side: top;
}

.shortcut-table th,
.shortcut-table td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

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

.shortcut-table th {
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-overlay-weak);
  color: var(--color-text);
  opacity: 0.7;
}

.shortcut-table td:first-child {
  white-space: nowrap;
  width: 1%;
}

/* Footer reuse from main.css applies — but ensure spacing */
.help-page footer {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-md) 0;
  border-top: 1px solid var(--color-border);
}

/* Responsive: collapse sidebar below content on narrow screens */
@media (max-width: 900px) {
  .help-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .help-nav {
    position: static;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
  }

  .help-nav ol {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.25rem;
  }

  .help-nav a {
    padding: 0.35rem 0.6rem;
    font-size: 0.85rem;
  }
}