/*
 * Signal Watch - Main Stylesheet
 * A professional news-site design
 */

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

:root {
  --color-primary: #1a1a2e;
  --color-secondary: #16213e;
  --color-accent: #e94560;
  --color-accent-dark: #c73e54;
  --color-text: #333;
  --color-text-light: #666;
  --color-text-muted: #999;
  --color-bg: #fafafa;
  --color-white: #fff;
  --color-border: #e0e0e0;
  --color-border-light: #f0f0f0;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-typewriter: "Special Elite", "Courier New", Courier, monospace;
  --max-width: 1200px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
}

html {
  font-size: 16px;
  line-height: 1.6;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-accent-dark);
}

img {
  max-width: 100%;
  height: auto;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header */
.site-header {
  background: var(--color-primary) url("/assets/site-background-24f93305.webp") center / cover no-repeat;
  position: relative;
  color: var(--color-white);
  padding: var(--spacing-lg) 0;
  border-bottom: 4px solid var(--color-accent);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 46, 0.82);
  pointer-events: none;
}

.site-header > * {
  position: relative;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.site-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.site-title a {
  color: var(--color-white);
}

.site-title a:hover {
  color: var(--color-accent);
}

.site-tagline {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--spacing-xs);
}

.main-nav {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  font-size: 0.95rem;
  padding: var(--spacing-sm) 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: var(--color-white);
  border-bottom-color: var(--color-accent);
}

/* Main Content */
.site-main {
  flex: 1;
  padding: var(--spacing-2xl) 0;
}

/* Landing Page */
.featured-badge {
  position: absolute;
  top: 0;
  right: 0;
  font-family: var(--font-typewriter);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 0 0 0 4px;
  color: var(--color-white);
  z-index: 10;
  box-shadow: -2px 2px 4px rgba(0,0,0,0.1);
}

.featured-badge--new { background: #2ecc71; }
.featured-badge--popular { background: var(--color-accent); }
.featured-badge--trending { background: #e67e22; }
.featured-badge--classic { background: var(--color-primary); }

/* Theory Cards */
.theory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--spacing-xl);
}

.theory-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}

.theory-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.theory-card--skeleton {
  background: var(--color-border-light);
  border-style: dashed;
}

.theory-card--skeleton:hover {
  transform: none;
  box-shadow: none;
}

.skeleton-silhouette {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 180px;
  color: var(--color-text-muted);
}

.skeleton-silhouette-icon {
  margin-bottom: var(--spacing-md);
  opacity: 0.4;
}

.skeleton-silhouette-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xs);
}

.skeleton-silhouette-text {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.theory-card-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.theory-card-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.theory-card-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

.theory-card-title a {
  color: var(--color-text);
}

.theory-card-title a:hover {
  color: var(--color-accent);
}

.theory-card-summary {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.theory-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-light);
  margin-top: auto;
}

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.status-badge--historical { background: #e8e8e8; color: #555; }
.status-badge--new { background: #e3f2fd; color: #1565c0; }
.status-badge--emerging { background: #fff3e0; color: #e65100; }
.status-badge--evolving { background: #fce4ec; color: #c62828; }
.status-badge--debunked { background: #e8f5e9; color: #2e7d32; }
.status-badge--persistent { background: #f3e5f5; color: #7b1fa2; }
.status-badge--recent { background: #e0f2f1; color: #00796b; }

/* Tags */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.tag-link {
  display: inline-block;
  padding: 3px 10px;
  background: var(--color-border-light);
  color: var(--color-text-light);
  border-radius: 3px;
  font-size: 0.8rem;
  transition: all 0.2s ease;
}

.tag-link:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* Theory Show Page Layout */
.theory-detail {
  min-width: 0;
  margin-bottom: 0;
}

.theory-header {
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

.theory-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.theory-header-row .tag-list {
  margin-top: 0;
}

.theory-category {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
}

.theory-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
  max-width: 900px;
}

.theory-summary {
  font-size: 1.2rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  max-width: 900px;
}

.theory-meta {
  display: flex;
  gap: var(--spacing-lg);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  max-width: 900px;
}

.theory-body {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text);
}

.theory-body p {
  margin-bottom: var(--spacing-lg);
}

.theory-body h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin: var(--spacing-xl) 0 var(--spacing-md);
  color: var(--color-primary);
}

.theory-body h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  color: var(--color-primary);
}

.theory-body ul,
.theory-body ol {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.theory-body li {
  margin-bottom: var(--spacing-sm);
}

/* Categories & Tags Index */
.category-grid,
.tag-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.category-card,
.tag-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: var(--spacing-lg);
  transition: box-shadow 0.2s ease;
}

.category-card:hover,
.tag-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.category-card h3,
.tag-card h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.category-card h3 a,
.tag-card h3 a {
  color: var(--color-text);
}

.category-card h3 a:hover,
.tag-card h3 a:hover {
  color: var(--color-accent);
}

.category-card p,
.tag-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.theory-count {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-sm);
}

/* Page Headers */
.page-header {
  margin-bottom: var(--spacing-2xl);
}

.page-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

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

/* Search Bar */
.search-bar {
  margin-bottom: var(--spacing-xl);
}

.search-form {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.search-input {
  flex: 1;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color 0.15s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.05);
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-submit {
  font-family: var(--font-typewriter);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  padding: 10px 20px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.15s ease;
}

.search-submit:hover {
  background: var(--color-border-light);
}

.search-clear {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.search-clear:hover {
  color: var(--color-accent);
}

.filter-empty {
  color: var(--color-text-muted);
  font-style: italic;
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

/* Sidebar Filters */
.content-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--spacing-2xl);
}

.sidebar {
  position: sticky;
  top: var(--spacing-lg);
  align-self: start;
}

.filter-section {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.filter-title {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.filter-list {
  list-style: none;
}

.filter-list li {
  margin-bottom: var(--spacing-sm);
}

.filter-list a {
  color: var(--color-text-light);
  font-size: 0.9rem;
  display: block;
  padding: var(--spacing-xs) 0;
}

.filter-list a:hover,
.filter-list a.active {
  color: var(--color-accent);
}

/* Footer */
.site-footer {
  background: var(--color-primary) url("/assets/site-background-24f93305.webp") center / cover no-repeat;
  position: relative;
  color: rgba(255, 255, 255, 0.7);
  padding: var(--spacing-2xl) 0;
  margin-top: auto;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 46, 0.88);
  pointer-events: none;
}

.site-footer > * {
  position: relative;
}

.footer-content {
  text-align: center;
}

.footer-top {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
}

.footer-nav {
  display: flex;
  gap: var(--spacing-md);
}

.footer-link {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.85rem;
}

.footer-link:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-disclaimer {
  font-size: 0.85rem;
  max-width: 800px;
  margin: 0 auto var(--spacing-md);
  line-height: 1.5;
}

.footer-copy {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  max-width: 800px;
  margin: 0 auto;
}

/* Static Pages */
.static-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-2xl) 0;
  line-height: 1.7;
}

.static-content h1 {
  margin-bottom: var(--spacing-xl);
}

.static-content h2 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  margin: var(--spacing-xl) 0 var(--spacing-md);
  color: var(--color-primary);
}

.static-content p {
  margin-bottom: var(--spacing-md);
}

.static-content ul {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-xl);
}

.static-content li {
  margin-bottom: var(--spacing-xs);
}

/* ===== THEORY TABS ===== */
.theory-tabs-container {
  margin-top: var(--spacing-sm);
}

.tab-bar {
  display: flex;
  gap: 6px;
  border-bottom: 2px solid var(--color-border);
  background: var(--color-bg);
  border-radius: 4px 4px 0 0;
  padding-right: 4px;
}

.tab {
  font-family: var(--font-typewriter);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  padding: 10px 20px 8px;
  border: none;
  border-radius: 4px 4px 0 0;
  cursor: pointer;
  position: relative;
  bottom: -2px;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.tab-active {
  background: var(--color-white);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-bottom-color: var(--color-white);
}

.tab-inactive {
  background: var(--color-border-light);
  color: var(--color-text-light);
  border: 1px solid transparent;
  border-bottom: none;
}

.tab-inactive:hover {
  background: var(--color-white);
  color: var(--color-accent);
}

/* Tab Panel */
.tab-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 4px 4px;
  padding: var(--spacing-xl);
  min-height: 400px;
}

.panel-hidden {
  display: none;
}

.panel-active {
  display: block;
}

.panel-empty {
  font-family: var(--font-typewriter);
  color: var(--color-text-muted);
  font-size: 1rem;
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

/* Refetch Button (Admin) */
.tab-panel {
  position: relative;
}

.panel-actions {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  z-index: 10;
}

.btn-refetch {
  background: none;
  color: var(--color-text-muted);
  border: none;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  opacity: 0.3;
  border-radius: 4px;
}

.btn-refetch svg {
  width: 14px;
  height: 14px;
  stroke-width: 2;
}

.btn-refetch:hover {
  opacity: 1;
  color: var(--color-accent);
  background: none;
  box-shadow: none;
}

.btn-refetch:hover svg {
  transform: rotate(45deg);
}

/* Skeleton Placeholders */
.content-card--skeleton {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  pointer-events: none;
}

.skeleton-content {
  padding: var(--spacing-md);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.skeleton-line {
  background: var(--color-border-light);
  height: 12px;
  border-radius: 2px;
  animation: pulse 1.5s infinite ease-in-out;
}

.skeleton-line--short { width: 40%; }
.skeleton-line--medium { width: 70%; }
.skeleton-line--long { width: 100%; }
.skeleton-line--title { height: 16px; margin-bottom: 4px; }

.skeleton-thumb, .skeleton-cover {
  background: var(--color-border-light);
  border-radius: 2px;
  animation: pulse 1.5s infinite ease-in-out;
}

.skeleton-thumb { aspect-ratio: 16/9; width: 100%; }
.skeleton-cover { width: 70px; height: 105px; flex-shrink: 0; }

.content-card--skeleton.content-card--book .skeleton-content {
  flex-direction: row;
  align-items: center;
}

@keyframes pulse {
  0% { opacity: 0.5; }
  50% { opacity: 1; }
  100% { opacity: 0.5; }
}

/* ===== CONTENT CARD GRID — 3x3 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.content-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  transition: box-shadow 0.2s ease, transform 0.15s ease;
}

.content-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.content-card-link {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md);
  color: inherit;
  height: 100%;
  text-decoration: none;
}

.content-card-source {
  font-family: var(--font-typewriter);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.content-card-title {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.content-card:hover .content-card-title {
  color: var(--color-accent);
}

.content-card-date,
.content-card-meta {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}



/* Video cards */
.content-card--video .content-card-link {
  padding: 0;
}

.content-card-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--color-primary);
  overflow: hidden;
  border-radius: 3px 3px 0 0;
}

.content-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.content-card--video .content-card-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--spacing-md);
}

/* Book cards */
.content-card--book .content-card-link {
  flex-direction: row;
  gap: var(--spacing-md);
}

.content-card-cover {
  flex-shrink: 0;
  width: 70px;
  height: 105px;
  background: var(--color-primary);
  border-radius: 2px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.content-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.content-card-cover-placeholder {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
}

.content-card--book .content-card-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  justify-content: center;
}

/* Hidden utility */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
  .header-top {
    flex-direction: column;
    text-align: center;
  }

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

  .main-nav {
    justify-content: center;
  }

  .content-layout {
    grid-template-columns: 1fr;
  }

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

  .theory-title {
    font-size: 1.8rem;
  }

  .tab-bar {
    flex-wrap: wrap;
  }

  .tab {
    font-size: 0.75rem;
    padding: 8px 14px 6px;
  }

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

  .tab-panel {
    padding: var(--spacing-md);
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}