/* ============================================
   SHARED PAGE STYLES
   Consistent styling for sub-pages
   ============================================ */

/* Import main design tokens */
:root {
  /* Colors */
  --color-bg-primary: #0a0a0f;
  --color-bg-secondary: #12121a;
  --color-bg-tertiary: #1a1a25;
  --color-bg-card: rgba(20, 20, 30, 0.9);
  --color-bg-glass: rgba(255, 255, 255, 0.03);

  --color-text-primary: #f0f0f5;
  --color-text-secondary: #b8b8c5;
  --color-text-muted: #8888a0;

  --color-accent: #4ade80;
  --color-accent-hover: #22c55e;
  --color-accent-glow: rgba(74, 222, 128, 0.3);
  --color-accent-subtle: rgba(74, 222, 128, 0.1);

  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(74, 222, 128, 0.4);

  /* Typography */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;

  /* Spacing */
  --sidebar-width: 280px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;

  /* Effects */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-display);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ---------- Sidebar Navigation (Shared) ---------- */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  padding: 2rem 0;
}

.sidebar__logo {
  padding: 0 2rem 2rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1rem;
}

.sidebar__logo-text {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar__logo-accent {
  color: var(--color-accent);
}

.sidebar__nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1rem 0;
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 2rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-base);
  position: relative;
  border-left: 3px solid transparent;
  text-decoration: none;
}

.sidebar__link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-accent-subtle), transparent);
  transition: width var(--transition-base);
}

.sidebar__link:hover,
.sidebar__link--active {
  color: var(--color-text-primary);
  border-left-color: var(--color-accent);
}

.sidebar__link:hover::before,
.sidebar__link--active::before {
  width: 100%;
}

.sidebar__link-icon {
  font-size: 1.2rem;
  width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- Page Content ---------- */
.page-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  padding: 3rem;
}

/* Page Header */
.page-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.page-header__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.page-header__breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-header__breadcrumb a:hover {
  color: var(--color-accent);
}

.page-header__breadcrumb span {
  color: var(--color-text-muted);
}

.page-header__title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.page-header__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* ---------- Link Cards ---------- */
.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.link-card {
  display: block;
  padding: 1.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
}

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

.link-card__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}

.link-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.link-card__description {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.link-card__arrow {
  display: inline-block;
  margin-top: 1rem;
  color: var(--color-accent);
  transition: transform var(--transition-fast);
}

.link-card:hover .link-card__arrow {
  transform: translateX(4px);
}

/* ---------- Section Divider ---------- */
.section-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.section-divider::before,
.section-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* ---------- Content Cards ---------- */
.content-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.content-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.content-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.content-card__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
}

.content-card__body {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.content-card__body p {
  margin-bottom: 1rem;
}

.content-card__body h3,
.content-card__body h4 {
  color: var(--color-text-primary);
  margin: 1.5rem 0 0.75rem;
}

.content-card__body ul,
.content-card__body ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.content-card__body li {
  margin-bottom: 0.5rem;
}

.content-card__body code {
  font-family: var(--font-mono);
  background: var(--color-bg-tertiary);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}

.content-card__body pre {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  padding: 1rem;
  overflow-x: auto;
  margin: 1rem 0;
}

.content-card__body pre code {
  background: none;
  padding: 0;
}

.content-card__body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin: 1rem 0;
}

/* ---------- Back Link ---------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 2rem;
  transition: color var(--transition-fast);
}

.back-link:hover {
  color: var(--color-accent);
}

.back-link::before {
  content: '\2190';
}

/* ---------- Journal List ---------- */
.journal-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.journal-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
}

.journal-item:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-tertiary);
}

.journal-item__number {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent);
  min-width: 60px;
}

.journal-item__title {
  flex: 1;
  color: var(--color-text-primary);
  font-weight: 500;
}

.journal-item__arrow {
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.journal-item:hover .journal-item__arrow {
  transform: translateX(4px);
  color: var(--color-accent);
}

/* ---------- External Link Badge ---------- */
.external-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background: var(--color-bg-tertiary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  margin-left: 0.5rem;
}

/* ---------- Coming Soon Badge ---------- */
.coming-soon {
  opacity: 0.6;
  pointer-events: none;
  position: relative;
}

.coming-soon::after {
  content: 'Coming Soon';
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- Responsive Design ---------- */
@media (max-width: 768px) {
  :root {
    --sidebar-width: 0px;
  }

  .sidebar {
    transform: translateX(-100%);
    width: 280px;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .page-content {
    padding: 2rem 1.5rem;
  }

  .page-header__title {
    font-size: 2rem;
  }

  .link-grid {
    grid-template-columns: 1fr;
  }
}