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| /* Base styles and variables */ | |
| :root { | |
| --primary-color: #4a6fff; | |
| --primary-dark: #3a56cc; | |
| --primary-light: #e0e7ff; | |
| --secondary-color: #ff6b6b; | |
| --accent-color: #7c4dff; | |
| --background-color: #f8f9fc; | |
| --card-bg-color: #ffffff; | |
| --text-color: #333333; | |
| --text-light: #6e7a8a; | |
| --border-color: #e1e5ee; | |
| --success-color: #28a745; | |
| --warning-color: #ffc107; | |
| --error-color: #dc3545; | |
| --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; | |
| --font-display: 'Montserrat', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; | |
| --font-mono: 'Fira Code', 'Courier New', monospace; | |
| --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1); | |
| --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1); | |
| --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1); | |
| --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--accent-color)); | |
| --gradient-secondary: linear-gradient(135deg, var(--secondary-color), #ff9a8b); | |
| --border-radius: 8px; | |
| --transition-speed: 0.3s; | |
| } | |
| /* Reset and base styles */ | |
| * { | |
| margin: 0; | |
| padding: 0; | |
| box-sizing: border-box; | |
| } | |
| body { | |
| font-family: var(--font-sans); | |
| background-color: var(--background-color); | |
| color: var(--text-color); | |
| line-height: 1.6; | |
| } | |
| h1, h2, h3, h4, h5, h6 { | |
| font-family: var(--font-display); | |
| margin-bottom: 1rem; | |
| font-weight: 700; | |
| line-height: 1.2; | |
| } | |
| h1 { | |
| font-size: 2.5rem; | |
| background: var(--gradient-primary); | |
| -webkit-background-clip: text; | |
| -webkit-text-fill-color: transparent; | |
| background-clip: text; | |
| margin-bottom: 1.5rem; | |
| } | |
| h2 { | |
| font-size: 2rem; | |
| color: var(--primary-color); | |
| } | |
| h3 { | |
| font-size: 1.5rem; | |
| color: var(--text-color); | |
| margin-top: 2rem; | |
| } | |
| h4 { | |
| font-size: 1.25rem; | |
| color: var(--text-color); | |
| } | |
| p { | |
| margin-bottom: 1rem; | |
| } | |
| a { | |
| color: var(--primary-color); | |
| text-decoration: none; | |
| transition: color var(--transition-speed); | |
| } | |
| a:hover { | |
| color: var(--primary-dark); | |
| } | |
| ul, ol { | |
| margin-left: 1.5rem; | |
| margin-bottom: 1rem; | |
| } | |
| code { | |
| font-family: var(--font-mono); | |
| background-color: var(--primary-light); | |
| padding: 0.2rem 0.4rem; | |
| border-radius: 4px; | |
| font-size: 0.9em; | |
| } | |
| /* Layout Structure */ | |
| .container { | |
| display: flex; | |
| min-height: 100vh; | |
| } | |
| .sidebar { | |
| width: 280px; | |
| background-color: var(--card-bg-color); | |
| border-right: 1px solid var(--border-color); | |
| height: 100vh; | |
| position: fixed; | |
| overflow-y: auto; | |
| transition: transform var(--transition-speed); | |
| z-index: 100; | |
| box-shadow: var(--shadow-sm); | |
| } | |
| .main-content { | |
| flex: 1; | |
| margin-left: 280px; | |
| padding: 0; | |
| min-height: 100vh; | |
| display: flex; | |
| flex-direction: column; | |
| } | |
| .content-wrapper { | |
| flex: 1; | |
| padding: 2rem; | |
| } | |
| /* Sidebar Styles */ | |
| .sidebar-header { | |
| padding: 1.5rem; | |
| border-bottom: 1px solid var(--border-color); | |
| display: flex; | |
| justify-content: space-between; | |
| align-items: center; | |
| } | |
| .sidebar-header h2 { | |
| font-size: 1.5rem; | |
| margin: 0; | |
| background: var(--gradient-primary); | |
| -webkit-background-clip: text; | |
| -webkit-text-fill-color: transparent; | |
| background-clip: text; | |
| } | |
| .progress-container { | |
| padding: 1rem 1.5rem; | |
| border-bottom: 1px solid var(--border-color); | |
| } | |
| .progress-bar { | |
| height: 8px; | |
| background-color: var(--border-color); | |
| border-radius: 4px; | |
| overflow: hidden; | |
| margin-bottom: 0.5rem; | |
| } | |
| .progress-fill { | |
| height: 100%; | |
| background: var(--gradient-primary); | |
| width: 0%; | |
| transition: width 0.5s ease-in-out; | |
| } | |
| .progress-text { | |
| font-size: 0.875rem; | |
| color: var(--text-light); | |
| margin: 0; | |
| } | |
| .course-navigation ul { | |
| list-style: none; | |
| margin: 0; | |
| padding: 0; | |
| } | |
| .course-navigation li { | |
| margin: 0; | |
| } | |
| .course-navigation a { | |
| display: flex; | |
| align-items: center; | |
| padding: 0.875rem 1.5rem; | |
| color: var(--text-color); | |
| transition: all var(--transition-speed); | |
| border-left: 3px solid transparent; | |
| } | |
| .course-navigation a:hover { | |
| background-color: var(--primary-light); | |
| color: var(--primary-color); | |
| } | |
| .course-navigation a.active { | |
| background-color: var(--primary-light); | |
| color: var(--primary-color); | |
| border-left: 3px solid var(--primary-color); | |
| font-weight: 600; | |
| } | |
| .course-navigation i { | |
| margin-right: 0.75rem; | |
| width: 20px; | |
| text-align: center; | |
| font-size: 1rem; | |
| } | |
| /* Header and Footer */ | |
| .page-header { | |
| background-color: var(--card-bg-color); | |
| padding: 1.5rem 2rem; | |
| border-bottom: 1px solid var(--border-color); | |
| display: flex; | |
| align-items: center; | |
| } | |
| .page-header h1 { | |
| margin: 0; | |
| } | |
| .page-footer { | |
| background-color: var(--card-bg-color); | |
| padding: 1.5rem 2rem; | |
| border-top: 1px solid var(--border-color); | |
| text-align: center; | |
| color: var(--text-light); | |
| font-size: 0.875rem; | |
| } | |
| /* Cards and Content Sections */ | |
| .section-content-card, .glossary-card { | |
| background-color: var(--card-bg-color); | |
| border-radius: var(--border-radius); | |
| box-shadow: var(--shadow-md); | |
| overflow: hidden; | |
| margin-bottom: 2rem; | |
| } | |
| .section-header, .glossary-header { | |
| background: var(--gradient-primary); | |
| color: white; | |
| padding: 2rem; | |
| } | |
| .section-header h2, .glossary-header h2 { | |
| color: white; | |
| margin-top: 0; | |
| } | |
| .section-body { | |
| padding: 2rem; | |
| } | |
| .section-content { | |
| margin-bottom: 2rem; | |
| } | |
| .section-content img { | |
| max-width: 100%; | |
| height: auto; | |
| border-radius: var(--border-radius); | |
| margin: 1rem 0; | |
| } | |
| .section-navigation { | |
| display: flex; | |
| justify-content: space-between; | |
| margin-top: 2rem; | |
| padding-top: 1rem; | |
| border-top: 1px solid var(--border-color); | |
| } | |
| /* Buttons */ | |
| .btn-primary, .btn-secondary { | |
| display: inline-block; | |
| padding: 0.75rem 1.5rem; | |
| border-radius: var(--border-radius); | |
| font-weight: 600; | |
| text-align: center; | |
| cursor: pointer; | |
| transition: all var(--transition-speed); | |
| border: none; | |
| } | |
| .btn-primary { | |
| background: var(--gradient-primary); | |
| color: white; | |
| } | |
| .btn-primary:hover { | |
| background: linear-gradient(135deg, var(--primary-dark), #6a3acf); | |
| transform: translateY(-2px); | |
| color: white; | |
| box-shadow: var(--shadow-md); | |
| } | |
| .btn-secondary { | |
| background-color: var(--card-bg-color); | |
| color: var(--primary-color); | |
| border: 1px solid var(--primary-color); | |
| } | |
| .btn-secondary:hover { | |
| background-color: var(--primary-light); | |
| color: var(--primary-dark); | |
| } | |
| /* Homepage Specific Styles */ | |
| .course-intro { | |
| max-width: 1200px; | |
| margin: 0 auto; | |
| } | |
| .hero-section { | |
| background: var(--gradient-primary); | |
| color: white; | |
| padding: 3rem 2rem; | |
| border-radius: var(--border-radius); | |
| text-align: center; | |
| margin-bottom: 2rem; | |
| } | |
| .hero-section h2 { | |
| color: white; | |
| font-size: 2.5rem; | |
| margin-top: 0; | |
| } | |
| .hero-section p { | |
| font-size: 1.25rem; | |
| max-width: 700px; | |
| margin: 1rem auto; | |
| } | |
| .topics-grid { | |
| display: grid; | |
| grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); | |
| gap: 1.5rem; | |
| margin: 1.5rem 0; | |
| } | |
| .topic-card { | |
| background-color: var(--card-bg-color); | |
| border-radius: var(--border-radius); | |
| padding: 1.5rem; | |
| box-shadow: var(--shadow-sm); | |
| transition: all var(--transition-speed); | |
| border: 1px solid var(--border-color); | |
| } | |
| .topic-card:hover { | |
| transform: translateY(-5px); | |
| box-shadow: var(--shadow-md); | |
| border-color: var(--primary-color); | |
| } | |
| .topic-card i { | |
| font-size: 2rem; | |
| color: var(--primary-color); | |
| margin-bottom: 1rem; | |
| } | |
| .topic-card h4 { | |
| margin-bottom: 0.5rem; | |
| } | |
| .topic-card p { | |
| color: var(--text-light); | |
| font-size: 0.9rem; | |
| margin-bottom: 0; | |
| } | |
| .getting-started { | |
| margin: 3rem 0; | |
| text-align: center; | |
| } | |
| /* Knowledge Check Styles */ | |
| .knowledge-check { | |
| background-color: var(--primary-light); | |
| border-radius: var(--border-radius); | |
| padding: 1.5rem; | |
| margin: 2rem 0; | |
| } | |
| .knowledge-check h3 { | |
| margin-top: 0; | |
| color: var(--primary-color); | |
| } | |
| .question-container { | |
| background-color: var(--card-bg-color); | |
| border-radius: var(--border-radius); | |
| padding: 1.5rem; | |
| margin: 1rem 0; | |
| box-shadow: var(--shadow-sm); | |
| } | |
| .question-text { | |
| font-weight: 600; | |
| margin-bottom: 1rem; | |
| } | |
| .options-container { | |
| display: flex; | |
| flex-direction: column; | |
| gap: 0.75rem; | |
| } | |
| .option-item { | |
| display: flex; | |
| align-items: center; | |
| padding: 0.75rem; | |
| border: 1px solid var(--border-color); | |
| border-radius: var(--border-radius); | |
| cursor: pointer; | |
| transition: all var(--transition-speed); | |
| } | |
| .option-item:hover { | |
| background-color: var(--primary-light); | |
| } | |
| .option-item.selected { | |
| border-color: var(--primary-color); | |
| background-color: var(--primary-light); | |
| } | |
| .option-item.correct { | |
| border-color: var(--success-color); | |
| background-color: rgba(40, 167, 69, 0.1); | |
| } | |
| .option-item.incorrect { | |
| border-color: var(--error-color); | |
| background-color: rgba(220, 53, 69, 0.1); | |
| } | |
| .feedback-container { | |
| margin-top: 1rem; | |
| padding: 1rem; | |
| border-radius: var(--border-radius); | |
| } | |
| .feedback-container.correct { | |
| background-color: rgba(40, 167, 69, 0.1); | |
| color: var(--success-color); | |
| } | |
| .feedback-container.incorrect { | |
| background-color: rgba(220, 53, 69, 0.1); | |
| color: var(--error-color); | |
| } | |
| /* SQL Exercise Styles */ | |
| .sql-exercise { | |
| background-color: #f2f8ff; | |
| border-radius: var(--border-radius); | |
| padding: 1.5rem; | |
| margin: 2rem 0; | |
| } | |
| .sql-exercise h3 { | |
| margin-top: 0; | |
| color: var(--primary-color); | |
| } | |
| .sql-problem { | |
| margin-bottom: 1.5rem; | |
| } | |
| .code-editor { | |
| background-color: #282c34; | |
| border-radius: var(--border-radius); | |
| padding: 1rem; | |
| margin: 1rem 0; | |
| font-family: var(--font-mono); | |
| color: #abb2bf; | |
| position: relative; | |
| } | |
| .code-editor textarea { | |
| width: 100%; | |
| min-height: 100px; | |
| background-color: transparent; | |
| border: none; | |
| resize: vertical; | |
| color: #abb2bf; | |
| font-family: var(--font-mono); | |
| line-height: 1.5; | |
| padding: 0; | |
| } | |
| .code-editor textarea:focus { | |
| outline: none; | |
| } | |
| .sql-buttons { | |
| display: flex; | |
| gap: 1rem; | |
| margin-top: 1rem; | |
| } | |
| .sql-result { | |
| margin-top: 1.5rem; | |
| overflow-x: auto; | |
| } | |
| .sql-table { | |
| width: 100%; | |
| border-collapse: collapse; | |
| margin-top: 1rem; | |
| } | |
| .sql-table th, .sql-table td { | |
| border: 1px solid var(--border-color); | |
| padding: 0.75rem; | |
| text-align: left; | |
| } | |
| .sql-table th { | |
| background-color: var(--primary-light); | |
| } | |
| .sql-feedback { | |
| margin-top: 1rem; | |
| padding: 1rem; | |
| border-radius: var(--border-radius); | |
| } | |
| .sql-feedback.correct { | |
| background-color: rgba(40, 167, 69, 0.1); | |
| color: var(--success-color); | |
| } | |
| .sql-feedback.incorrect { | |
| background-color: rgba(220, 53, 69, 0.1); | |
| color: var(--error-color); | |
| } | |
| /* Glossary Styles */ | |
| .search-container { | |
| display: flex; | |
| margin: 1rem 0; | |
| } | |
| .search-container input { | |
| flex: 1; | |
| padding: 0.75rem; | |
| border: 1px solid var(--border-color); | |
| border-radius: var(--border-radius) 0 0 var(--border-radius); | |
| font-size: 1rem; | |
| } | |
| .search-container button { | |
| background-color: var(--primary-color); | |
| color: white; | |
| border: none; | |
| padding: 0 1rem; | |
| border-radius: 0 var(--border-radius) var(--border-radius) 0; | |
| cursor: pointer; | |
| } | |
| .glossary-content { | |
| padding: 2rem; | |
| } | |
| .glossary-list { | |
| display: grid; | |
| grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); | |
| gap: 1.5rem; | |
| } | |
| .glossary-item { | |
| background-color: var(--card-bg-color); | |
| border: 1px solid var(--border-color); | |
| border-radius: var(--border-radius); | |
| padding: 1.5rem; | |
| box-shadow: var(--shadow-sm); | |
| transition: all var(--transition-speed); | |
| } | |
| .glossary-item:hover { | |
| box-shadow: var(--shadow-md); | |
| transform: translateY(-2px); | |
| } | |
| .glossary-term { | |
| font-weight: 700; | |
| font-size: 1.1rem; | |
| color: var(--primary-color); | |
| margin-bottom: 0.5rem; | |
| } | |
| .glossary-definition { | |
| color: var(--text-color); | |
| font-size: 0.95rem; | |
| margin: 0; | |
| } | |
| .no-results { | |
| text-align: center; | |
| padding: 2rem; | |
| color: var(--text-light); | |
| } | |
| /* Utility Classes */ | |
| .hidden { | |
| display: none; | |
| } | |
| .loading-spinner { | |
| display: flex; | |
| justify-content: center; | |
| align-items: center; | |
| padding: 3rem; | |
| color: var(--primary-color); | |
| font-size: 2rem; | |
| } | |
| .mobile-only { | |
| display: none; | |
| } | |
| /* Data visualization styles */ | |
| .chart-container { | |
| margin: 2rem 0; | |
| background-color: var(--card-bg-color); | |
| border-radius: var(--border-radius); | |
| padding: 1.5rem; | |
| box-shadow: var(--shadow-sm); | |
| } | |
| .chart-header { | |
| margin-bottom: 1rem; | |
| } | |
| /* Code blocks */ | |
| pre { | |
| background-color: #282c34; | |
| border-radius: var(--border-radius); | |
| padding: 1rem; | |
| margin: 1rem 0; | |
| overflow-x: auto; | |
| } | |
| pre code { | |
| background-color: transparent; | |
| padding: 0; | |
| font-family: var(--font-mono); | |
| color: #abb2bf; | |
| } | |
| /* Tables */ | |
| table { | |
| width: 100%; | |
| border-collapse: collapse; | |
| margin: 1rem 0; | |
| } | |
| th, td { | |
| border: 1px solid var(--border-color); | |
| padding: 0.75rem; | |
| text-align: left; | |
| } | |
| th { | |
| background-color: var(--primary-light); | |
| font-weight: 600; | |
| } | |
| /* Responsive styles */ | |
| @media (max-width: 992px) { | |
| .sidebar { | |
| width: 240px; | |
| } | |
| .main-content { | |
| margin-left: 240px; | |
| } | |
| .course-navigation a { | |
| padding: 0.75rem 1.25rem; | |
| } | |
| .topics-grid { | |
| grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); | |
| } | |
| } | |
| @media (max-width: 768px) { | |
| .mobile-only { | |
| display: block; | |
| } | |
| .sidebar { | |
| transform: translateX(-100%); | |
| width: 280px; | |
| z-index: 1000; | |
| } | |
| .sidebar.active { | |
| transform: translateX(0); | |
| } | |
| .main-content { | |
| margin-left: 0; | |
| } | |
| #mobile-menu-toggle { | |
| background: none; | |
| border: none; | |
| font-size: 1.5rem; | |
| color: var(--primary-color); | |
| cursor: pointer; | |
| margin-right: 1rem; | |
| } | |
| #sidebar-toggle { | |
| background: none; | |
| border: none; | |
| font-size: 1.25rem; | |
| color: var(--primary-color); | |
| cursor: pointer; | |
| } | |
| .page-header h1 { | |
| font-size: 1.75rem; | |
| } | |
| .hero-section h2 { | |
| font-size: 2rem; | |
| } | |
| .glossary-list { | |
| grid-template-columns: 1fr; | |
| } | |
| .section-navigation { | |
| flex-direction: column; | |
| gap: 1rem; | |
| } | |
| .section-navigation a { | |
| width: 100%; | |
| text-align: center; | |
| } | |
| } | |
| @media (max-width: 576px) { | |
| .page-header, .content-wrapper, .page-footer { | |
| padding: 1rem; | |
| } | |
| .section-header, .glossary-header, .section-body { | |
| padding: 1.5rem; | |
| } | |
| .hero-section { | |
| padding: 2rem 1rem; | |
| } | |
| .hero-section h2 { | |
| font-size: 1.75rem; | |
| } | |
| .hero-section p { | |
| font-size: 1rem; | |
| } | |
| h1 { | |
| font-size: 2rem; | |
| } | |
| h2 { | |
| font-size: 1.5rem; | |
| } | |
| } |