/* ==========================================================================
   Laundry System Documentation Hub CSS (Premium Visual Edition)
   Glassmorphism + Interactive API cards + Timelines + DB schemas
   ========================================================================== */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-title: 'Outfit', var(--font-sans);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme */
.dark-theme {
  --bg-app: #060913;
  --bg-sidebar: rgba(10, 15, 30, 0.8);
  --bg-card: rgba(20, 30, 55, 0.35);
  --bg-card-hover: rgba(30, 45, 80, 0.5);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(59, 130, 246, 0.5);
  
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  
  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --accent-secondary: #8b5cf6;
  
  --code-bg: #0b0f19;
  --table-header: rgba(15, 23, 42, 0.8);
  --table-stripe: rgba(30, 41, 59, 0.3);
  
  --scrollbar-thumb: rgba(255, 255, 255, 0.12);
  --scrollbar-hover: rgba(255, 255, 255, 0.25);
  --shadow-color: rgba(0, 0, 0, 0.6);
  --glow-welcome: radial-gradient(circle, rgba(59,130,246,0.15) 0%, rgba(0,0,0,0) 70%);

  /* API Methods */
  --color-get: #10b981;
  --color-post: #3b82f6;
  --color-put: #f59e0b;
  --color-delete: #ef4444;
  --color-patch: #8b5cf6;
}

/* Light Theme */
.light-theme {
  --bg-app: #f8fafc;
  --bg-sidebar: rgba(255, 255, 255, 0.85);
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-card-hover: rgba(241, 245, 249, 0.9);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-focus: rgba(59, 130, 246, 0.4);
  
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  
  --accent: #2563eb;
  --accent-glow: rgba(37, 99, 235, 0.08);
  --accent-secondary: #7c3aed;
  
  --code-bg: #f1f5f9;
  --table-header: rgba(226, 232, 240, 0.8);
  --table-stripe: rgba(241, 245, 249, 0.5);
  
  --scrollbar-thumb: rgba(0, 0, 0, 0.12);
  --scrollbar-hover: rgba(0, 0, 0, 0.25);
  --shadow-color: rgba(0, 0, 0, 0.06);
  --glow-welcome: radial-gradient(circle, rgba(37,99,235,0.08) 0%, rgba(0,0,0,0) 70%);

  /* API Methods */
  --color-get: #059669;
  --color-post: #2563eb;
  --color-put: #d97706;
  --color-delete: #dc2626;
  --color-patch: #7c3aed;
}

/* Reset and Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  display: flex;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-hover);
}

/* App Container Layout */
.app-container {
  display: flex;
  width: 100vw;
  height: 100vh;
  position: relative;
}

/* Sidebar Left */
.sidebar-left {
  width: 300px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100%;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.brand {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.brand-icon {
  font-size: 26px;
  animation: spin 10s linear infinite;
  display: inline-block;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.brand-text h1 {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-primary);
}

.brand-text span {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  font-weight: 700;
}

.search-box {
  margin: 16px 20px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--text-muted);
}

.search-box input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.12);
  color: var(--text-primary);
  font-size: 13px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.doc-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0 12px 20px;
}

.nav-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin: 18px 8px 6px;
}

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

.nav-item {
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 3px;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-item:hover {
  background-color: var(--bg-card);
  color: var(--text-primary);
}

.nav-item.active {
  background-color: var(--accent-glow);
  color: var(--accent);
  font-weight: 600;
  border-left: 3px solid var(--accent);
  border-radius: 2px 6px 6px 2px;
}

.sidebar-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border-color);
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 12.5px;
  padding: 8px 12px;
  border-radius: 6px;
}

.theme-toggle-btn:hover {
  background-color: var(--bg-card);
}

.theme-toggle-btn svg {
  width: 15px;
  height: 15px;
}

.dark-theme .sun-icon, .light-theme .moon-icon { display: block; }
.dark-theme .moon-icon, .light-theme .sun-icon { display: none; }

/* Main Content Area */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.top-bar {
  height: 60px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background-color: rgba(var(--bg-app), 0.3);
  backdrop-filter: blur(10px);
  z-index: 50;
  flex-shrink: 0;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

.mobile-toggle svg { width: 22px; height: 22px; }

.current-doc-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.doc-badge {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background-color: var(--accent-glow);
  color: var(--accent);
  padding: 3px 6px;
  border-radius: 4px;
}

.doc-title {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 700;
}

.action-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 6px;
  border-radius: 6px;
  cursor: pointer;
}

.action-btn svg { width: 14px; height: 14px; }

.content-body {
  flex: 1;
  overflow-y: auto;
  padding: 30px 40px;
  display: flex;
  justify-content: center;
  scroll-behavior: smooth;
}

/* Sidebar Right (TOC) */
.sidebar-right {
  width: 240px;
  border-left: 1px solid var(--border-color);
  padding: 24px 16px;
  flex-shrink: 0;
  overflow-y: auto;
}

.toc-container h3 {
  font-family: var(--font-title);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.toc-wrapper {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.toc-link {
  font-size: 12px;
  color: var(--text-secondary);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.toc-link:hover, .toc-link.active {
  color: var(--accent);
}

.toc-h3 { padding-left: 12px; font-size: 11px; color: var(--text-muted); }

/* Markdown Body */
.markdown-body {
  width: 100%;
  max-width: 800px;
  line-height: 1.6;
}

/* Welcome Container */
.welcome-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 60vh;
  position: relative;
}

.welcome-glow {
  position: absolute;
  width: 350px;
  height: 350px;
  background: var(--glow-welcome);
  pointer-events: none;
}

.welcome-icon { font-size: 60px; margin-bottom: 20px; animation: float 3s ease-in-out infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.welcome-container h2 {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 10px;
}

.welcome-container p { color: var(--text-secondary); font-size: 14px; max-width: 450px; margin-bottom: 6px; }
.welcome-container p.sub { color: var(--text-muted); font-size: 12.5px; }

/* Markdown elements styling */
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  font-family: var(--font-title);
  color: var(--text-primary);
  margin-top: 28px;
  margin-bottom: 12px;
  scroll-margin-top: 80px;
}
.markdown-body h1 { font-size: 26px; border-bottom: 1px solid var(--border-color); padding-bottom: 6px; }
.markdown-body h2 { font-size: 20px; border-bottom: 1px solid var(--border-color); padding-bottom: 4px; }
.markdown-body h3 { font-size: 16px; }
.markdown-body p { margin-bottom: 14px; color: var(--text-secondary); }
.markdown-body code { font-family: var(--font-mono); background-color: var(--code-bg); padding: 2px 5px; border-radius: 4px; font-size: 13px; }
.markdown-body pre { margin-bottom: 16px; border-radius: 8px; border: 1px solid var(--border-color); overflow: hidden; }
.markdown-body pre code { display: block; padding: 14px; overflow-x: auto; font-size: 12.5px; }
.markdown-body ul, .markdown-body ol { margin-bottom: 14px; padding-left: 20px; color: var(--text-secondary); }
.markdown-body li { margin-bottom: 4px; }

/* Table Styling */
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}
.markdown-body th, .markdown-body td { padding: 10px 14px; border-bottom: 1px solid var(--border-color); }
.markdown-body th { background-color: var(--table-header); color: var(--text-primary); font-family: var(--font-title); font-size: 12.5px; font-weight: 600; }
.markdown-body tr:nth-child(even) { background-color: var(--table-stripe); }

/* Custom API Cards (For API_DESIGN.md) */
.api-card {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background-color: var(--bg-card);
  margin-bottom: 24px;
  overflow: hidden;
  box-shadow: 0 4px 12px var(--shadow-color);
  transition: border-color var(--transition-fast);
}

.api-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.api-header {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  user-select: none;
}

.api-method {
  font-family: var(--font-title);
  font-size: 11px;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 4px;
  color: #fff;
  text-transform: uppercase;
}

.api-method.get { background-color: var(--color-get); }
.api-method.post { background-color: var(--color-post); }
.api-method.put { background-color: var(--color-put); }
.api-method.patch { background-color: var(--color-patch); }
.api-method.delete { background-color: var(--color-delete); }

.api-path {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.api-desc {
  font-size: 12px;
  color: var(--text-muted);
}

.api-chevron {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-normal);
}

.api-card.collapsed .api-chevron {
  transform: rotate(-90deg);
}

.api-body {
  padding: 16px;
  background-color: rgba(0, 0, 0, 0.1);
  display: block;
}

.api-card.collapsed .api-body {
  display: none;
}

.api-section-title {
  font-family: var(--font-title);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
  margin-top: 12px;
  letter-spacing: 0.5px;
}
.api-section-title:first-child { margin-top: 0; }

.api-pre {
  margin-bottom: 12px !important;
}

/* Custom Database Table Cards (For DATABASE_SCHEMA.md) */
.db-table-card {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background-color: var(--bg-card);
  margin-bottom: 28px;
  padding: 20px;
  box-shadow: 0 4px 16px var(--shadow-color);
}

.db-table-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.db-table-title h3 {
  margin: 0 !important;
  font-size: 17px !important;
  color: var(--accent) !important;
  font-family: var(--font-mono);
}

.db-table-badge {
  font-size: 10px;
  font-weight: 600;
  background-color: rgba(139, 92, 246, 0.1);
  color: var(--accent-secondary);
  padding: 2px 6px;
  border-radius: 4px;
}

.db-columns-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.db-column-row {
  display: grid;
  grid-template-columns: 180px 150px 80px 1fr;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 13px;
  border: 1px solid transparent;
  transition: background-color var(--transition-fast);
}

.db-column-row:hover {
  background-color: rgba(255, 255, 255, 0.03);
  border-color: var(--border-color);
}

.db-col-name {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
}

.db-col-type {
  font-family: var(--font-mono);
  color: #3b82f6;
  font-size: 12px;
}

.db-col-key {
  font-size: 10px;
  font-weight: 700;
  color: #f59e0b;
}

.db-col-desc {
  color: var(--text-secondary);
}

/* Custom Timelines (For USE_CASES.md & WORKFLOWS) */
.timeline-list {
  position: relative;
  padding-left: 24px;
  margin-left: 8px;
  margin-bottom: 24px;
  margin-top: 16px;
}

.timeline-list::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background-color: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 16px;
  list-style: none !important;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--accent);
  border: 2px solid var(--bg-app);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.timeline-content {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Custom GitHub Alerts */
.markdown-body blockquote {
  padding: 14px 18px;
  border-left: 4px solid var(--accent);
  background-color: var(--bg-card);
  margin-bottom: 16px;
  border-radius: 0 6px 6px 0;
}
.markdown-body blockquote.alert-important { border-left-color: #3b82f6; background-color: rgba(59, 130, 246, 0.06); }
.markdown-body blockquote.alert-warning { border-left-color: #f59e0b; background-color: rgba(245, 158, 11, 0.06); }
.markdown-body blockquote.alert-tip { border-left-color: #10b981; background-color: rgba(16, 185, 129, 0.06); }
.alert-title { font-family: var(--font-title); font-size: 11px; font-weight: 800; letter-spacing: 0.5px; text-transform: uppercase; }

/* Mermaid ERD Styling */
.mermaid {
  display: flex;
  justify-content: center;
  margin: 24px 0;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  box-shadow: 0 4px 16px var(--shadow-color);
}
.mermaid svg {
  max-width: 100% !important;
  height: auto !important;
}

/* Responsive Adjustments */
@media (max-width: 1024px) {
  .sidebar-right { display: none; }
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .sidebar-left { position: absolute; left: 0; top: 0; bottom: 0; transform: translateX(-100%); }
  .sidebar-left.open { transform: translateX(0); }
  .sidebar-overlay { display: none; position: absolute; left: 0; right: 0; top: 0; bottom: 0; background-color: rgba(0, 0, 0, 0.5); backdrop-filter: blur(4px); z-index: 90; }
  .sidebar-overlay.open { display: block; }
  .content-body { padding: 20px; }
  .top-bar { padding: 0 16px; }
  .db-column-row { grid-template-columns: 1fr; gap: 4px; padding: 10px; border-bottom: 1px solid var(--border-color); }
  .db-col-key { font-weight: 500; font-size: 11px; }
}