/* ==========================================================================
   PRISM UI - SHOWCASE PAGE LAYOUT
   Styles for the component documentation and demo interface
   ========================================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.app-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-4) var(--space-6);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.app-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.app-logo h1 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-main);
}

.app-logo .version {
  background-color: var(--color-primary-100);
  color: var(--color-primary-700);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

[data-theme="dark"] .app-logo .version {
  background-color: rgba(37, 99, 235, 0.2);
  color: var(--color-primary-300);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.theme-toggle-btn {
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background-color: var(--color-gray-200);
}

/* --------------------------------------------------------------------------
   Main Layout (Sidebar + Content)
   -------------------------------------------------------------------------- */
.app-layout {
  display: flex;
  min-height: calc(100vh - 65px);
}

.sidebar {
  width: 260px;
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  padding: var(--space-6) 0;
  position: sticky;
  top: 65px;
  height: calc(100vh - 65px);
  overflow-y: auto;
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav li {
  margin-bottom: 2px;
}

.sidebar-nav a {
  display: block;
  padding: 10px 24px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-muted);
  text-decoration: none;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.sidebar-nav a:hover {
  color: var(--text-main);
  background-color: var(--bg-surface-subtle);
}

.sidebar-nav a.active {
  color: var(--color-primary-600);
  background-color: var(--color-primary-50);
  border-left-color: var(--color-primary-600);
}

[data-theme="dark"] .sidebar-nav a.active {
  background-color: rgba(37, 99, 235, 0.15);
}

/* --------------------------------------------------------------------------
   Main Content Area
   -------------------------------------------------------------------------- */
.main-content {
  flex: 1;
  padding: var(--space-8) var(--space-6);
  max-width: 1100px;
}

.component-section {
  margin-bottom: var(--space-12);
}

.section-header {
  margin-bottom: var(--space-6);
}

.section-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-main);
  margin-bottom: var(--space-2);
}

.section-description {
  font-size: var(--font-size-base);
  color: var(--text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Component Preview Box
   -------------------------------------------------------------------------- */
.component-demo {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-bottom: var(--space-6);
  position: relative;
}

.demo-label {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background-color: var(--bg-surface-subtle);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.demo-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.demo-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 420px;
}

/* --------------------------------------------------------------------------
   Code Snippet Block
   -------------------------------------------------------------------------- */
.code-block-wrapper {
  position: relative;
  margin-top: var(--space-4);
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--color-gray-800);
  color: var(--color-gray-300);
  padding: 8px 16px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

.copy-code-btn {
  background-color: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: none;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.copy-code-btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.copy-code-btn.copied {
  background-color: var(--color-success);
  color: #fff;
}

.code-block {
  background-color: var(--color-gray-900);
  color: var(--color-gray-100);
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  padding: var(--space-5);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  overflow-x: auto;
  line-height: 1.7;
  white-space: pre;
}

/* --------------------------------------------------------------------------
   Intro Hero Section
   -------------------------------------------------------------------------- */
.intro-hero {
  padding: var(--space-10) 0;
  margin-bottom: var(--space-10);
}

.hero-title {
  font-size: 3rem;
  font-weight: var(--font-weight-bold);
  color: var(--text-main);
  margin-bottom: var(--space-4);
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .app-layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    position: relative;
    height: auto;
    top: 0;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .main-content {
    padding: var(--space-6) var(--space-4);
  }

  .hero-title {
    font-size: 2rem;
  }

  .demo-grid {
    flex-direction: column;
    align-items: stretch;
  }
}