/* Fusionscampus Onboarding — Styles */

:root {
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;
  --bg-sidebar: #1e293b;
  --bg-sidebar-hover: #334155;
  --border: #e2e8f0;
  --border-sidebar: #334155;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: rgba(37, 99, 235, 0.1);
  --text: #1e293b;
  --text-secondary: #64748b;
  --text-dim: #94a3b8;
  --text-sidebar: #f1f5f9;
  --text-sidebar-dim: #94a3b8;
  --success: #22c55e;
  --warning: #f59e0b;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
  --radius: 0.75rem;
  --radius-sm: 0.5rem;
}

.dark-theme {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --bg-sidebar: #0f172a;
  --bg-sidebar-hover: #1e293b;
  --border: #334155;
  --border-sidebar: #1e293b;
  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-dim: #64748b;
  --accent-light: rgba(37, 99, 235, 0.2);
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

/* Login Screen */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

.login-box {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-logo {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.login-box h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.login-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.input-group {
  text-align: left;
  margin-bottom: 1rem;
}

.input-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}

.input-group input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s;
}

.input-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.login-btn {
  width: 100%;
  padding: 0.875rem;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.login-btn:hover {
  background: var(--accent-hover);
}

.login-error {
  color: #ef4444;
  font-size: 0.75rem;
  margin-top: 0.75rem;
  min-height: 1rem;
}

.login-hint {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 1.5rem;
}

/* App Layout */
.app {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--bg-sidebar);
  color: var(--text-sidebar);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform 0.3s;
}

.sidebar-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-sidebar);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-logo {
  font-size: 1.5rem;
}

.sidebar-title {
  font-size: 0.875rem;
  font-weight: 600;
}

.nav-tree {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem 0;
}

.nav-chapter {
  margin-bottom: 0.25rem;
}

.nav-chapter-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  cursor: pointer;
  transition: background 0.2s;
  font-size: 0.8125rem;
  font-weight: 600;
}

.nav-chapter-header:hover {
  background: var(--bg-sidebar-hover);
}

.nav-chapter-toggle {
  font-size: 0.625rem;
  transition: transform 0.2s;
  color: var(--text-sidebar-dim);
}

.nav-chapter.expanded .nav-chapter-toggle {
  transform: rotate(90deg);
}

.nav-chapter-pages {
  display: none;
  padding-left: 1rem;
}

.nav-chapter.expanded .nav-chapter-pages {
  display: block;
}

.nav-page {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem 0.5rem 1.5rem;
  cursor: pointer;
  transition: background 0.2s;
  font-size: 0.75rem;
  color: var(--text-sidebar-dim);
  text-decoration: none;
}

.nav-page:hover {
  background: var(--bg-sidebar-hover);
  color: var(--text-sidebar);
}

.nav-page.active {
  background: var(--accent);
  color: white;
}

.nav-page-num {
  font-variant-numeric: tabular-nums;
  min-width: 2rem;
  font-weight: 600;
}

.sidebar-footer {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border-sidebar);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.theme-toggle button,
.font-size-controls button {
  background: none;
  border: none;
  color: var(--text-sidebar-dim);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.875rem;
  transition: all 0.2s;
}

.theme-toggle button:hover,
.font-size-controls button:hover {
  background: var(--bg-sidebar-hover);
  color: var(--text-sidebar);
}

.font-size-controls {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

#font-size-label {
  font-size: 0.625rem;
  color: var(--text-sidebar-dim);
  min-width: 2rem;
  text-align: center;
}

/* Content */
.content {
  flex: 1;
  margin-left: 280px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.content-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.25rem;
  color: var(--text);
}

.breadcrumbs {
  flex: 1;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.breadcrumbs span {
  color: var(--text-dim);
}

.logout-btn {
  background: none;
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.logout-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.page-content {
  flex: 1;
  padding: 1.5rem 2rem;
  max-width: 900px;
}

/* Welcome Page */
.welcome-page h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.welcome-page p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.quick-links h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.quick-link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
}

.quick-link-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s;
}

.quick-link-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.ql-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-light);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  min-width: 2.5rem;
  text-align: center;
}

.ql-title {
  font-size: 0.8125rem;
  font-weight: 500;
}

/* Page Content Styles */
.page-content h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.page-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent);
}

.page-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.25rem 0 0.5rem;
}

.page-content p {
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.page-content ul,
.page-content ol {
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0.75rem 0;
  padding-left: 1.5rem;
}

.page-content li {
  margin-bottom: 0.375rem;
}

.page-content a {
  color: var(--accent);
  text-decoration: none;
}

.page-content a:hover {
  text-decoration: underline;
}

.info-box {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1rem 0;
}

.info-box-title {
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.info-box p {
  font-size: 0.8125rem;
  margin: 0;
}

/* Responsive */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .content {
    margin-left: 0;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .page-content {
    padding: 1rem;
  }
}

@media (max-width: 768px) {
  .login-box {
    padding: 1.5rem;
    margin: 1rem;
  }
  
  .quick-link-grid {
    grid-template-columns: 1fr;
  }
  
  .page-content {
    padding: 0.75rem;
  }
  
  .page-content h1 {
    font-size: 1.25rem;
  }
}