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| /* ===== SentimentLens — Light Theme Design System ===== */ | |
| :root { | |
| /* Colors */ | |
| --color-bg: #F8F9FC; | |
| --color-surface: #FFFFFF; | |
| --color-surface-hover: #F1F3F9; | |
| --color-border: #E2E6EF; | |
| --color-border-focus: #7C6BF0; | |
| --color-text-primary: #1A1D2E; | |
| --color-text-secondary: #6B7394; | |
| --color-text-muted: #9BA3C2; | |
| /* Accent */ | |
| --color-accent: #7C6BF0; | |
| --color-accent-light: #EDE9FE; | |
| --color-accent-gradient: linear-gradient(135deg, #7C6BF0 0%, #A78BFA 50%, #C4B5FD 100%); | |
| --color-accent-glow: rgba(124, 107, 240, 0.15); | |
| /* Semantic */ | |
| --color-positive: #10B981; | |
| --color-positive-bg: #ECFDF5; | |
| --color-positive-border: #A7F3D0; | |
| --color-negative: #F43F5E; | |
| --color-negative-bg: #FFF1F2; | |
| --color-negative-border: #FECDD3; | |
| /* Model tags */ | |
| --color-tfidf: #F59E0B; | |
| --color-tfidf-bg: #FFFBEB; | |
| --color-tfidf-border: #FDE68A; | |
| --color-bert: #6366F1; | |
| --color-bert-bg: #EEF2FF; | |
| --color-bert-border: #C7D2FE; | |
| /* Spacing & Radius */ | |
| --radius-sm: 8px; | |
| --radius-md: 12px; | |
| --radius-lg: 16px; | |
| --radius-xl: 24px; | |
| --radius-full: 9999px; | |
| /* Shadows */ | |
| --shadow-sm: 0 1px 3px rgba(26, 29, 46, 0.04), 0 1px 2px rgba(26, 29, 46, 0.02); | |
| --shadow-md: 0 4px 12px rgba(26, 29, 46, 0.06), 0 2px 4px rgba(26, 29, 46, 0.03); | |
| --shadow-lg: 0 12px 32px rgba(26, 29, 46, 0.08), 0 4px 8px rgba(26, 29, 46, 0.04); | |
| --shadow-glow: 0 0 0 4px var(--color-accent-glow); | |
| /* Transitions */ | |
| --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1); | |
| --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1); | |
| --transition-smooth: 400ms cubic-bezier(0.4, 0, 0.2, 1); | |
| } | |
| /* ===== Reset & Base ===== */ | |
| *, *::before, *::after { | |
| margin: 0; | |
| padding: 0; | |
| box-sizing: border-box; | |
| } | |
| html { | |
| font-size: 16px; | |
| -webkit-font-smoothing: antialiased; | |
| -moz-osx-font-smoothing: grayscale; | |
| } | |
| body { | |
| font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; | |
| background: var(--color-bg); | |
| color: var(--color-text-primary); | |
| line-height: 1.6; | |
| min-height: 100vh; | |
| } | |
| /* ===== App Layout ===== */ | |
| .app { | |
| min-height: 100vh; | |
| display: flex; | |
| flex-direction: column; | |
| } | |
| /* ===== Header ===== */ | |
| .header { | |
| background: var(--color-surface); | |
| border-bottom: 1px solid var(--color-border); | |
| padding: 0 2rem; | |
| position: sticky; | |
| top: 0; | |
| z-index: 100; | |
| backdrop-filter: blur(12px); | |
| background: rgba(255, 255, 255, 0.85); | |
| } | |
| .header-inner { | |
| max-width: 1200px; | |
| margin: 0 auto; | |
| display: flex; | |
| align-items: center; | |
| justify-content: space-between; | |
| height: 64px; | |
| } | |
| .logo { | |
| display: flex; | |
| align-items: center; | |
| gap: 10px; | |
| text-decoration: none; | |
| } | |
| .logo-icon { | |
| width: 36px; | |
| height: 36px; | |
| border-radius: var(--radius-sm); | |
| background: var(--color-accent-gradient); | |
| display: flex; | |
| align-items: center; | |
| justify-content: center; | |
| color: white; | |
| font-size: 18px; | |
| box-shadow: var(--shadow-sm); | |
| } | |
| .logo-text { | |
| font-size: 1.25rem; | |
| font-weight: 700; | |
| color: var(--color-text-primary); | |
| letter-spacing: -0.02em; | |
| } | |
| .logo-text span { | |
| color: var(--color-accent); | |
| } | |
| .header-badge { | |
| display: flex; | |
| align-items: center; | |
| gap: 6px; | |
| padding: 6px 14px; | |
| background: var(--color-accent-light); | |
| color: var(--color-accent); | |
| border-radius: var(--radius-full); | |
| font-size: 0.75rem; | |
| font-weight: 600; | |
| letter-spacing: 0.02em; | |
| } | |
| .header-badge .dot { | |
| width: 6px; | |
| height: 6px; | |
| border-radius: 50%; | |
| background: var(--color-accent); | |
| animation: pulse-dot 2s ease-in-out infinite; | |
| } | |
| @keyframes pulse-dot { | |
| 0%, 100% { opacity: 1; transform: scale(1); } | |
| 50% { opacity: 0.5; transform: scale(0.8); } | |
| } | |
| /* ===== Hero ===== */ | |
| .hero { | |
| text-align: center; | |
| padding: 4rem 2rem 2rem; | |
| position: relative; | |
| overflow: hidden; | |
| } | |
| .hero::before { | |
| content: ''; | |
| position: absolute; | |
| top: -60%; | |
| left: 50%; | |
| transform: translateX(-50%); | |
| width: 600px; | |
| height: 600px; | |
| background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%); | |
| pointer-events: none; | |
| } | |
| .hero h1 { | |
| font-size: 2.75rem; | |
| font-weight: 800; | |
| letter-spacing: -0.03em; | |
| line-height: 1.15; | |
| color: var(--color-text-primary); | |
| margin-bottom: 0.75rem; | |
| position: relative; | |
| } | |
| .hero h1 .gradient-text { | |
| background: var(--color-accent-gradient); | |
| -webkit-background-clip: text; | |
| -webkit-text-fill-color: transparent; | |
| background-clip: text; | |
| } | |
| .hero p { | |
| font-size: 1.1rem; | |
| color: var(--color-text-secondary); | |
| max-width: 560px; | |
| margin: 0 auto; | |
| line-height: 1.7; | |
| } | |
| /* ===== Main Content ===== */ | |
| .main { | |
| max-width: 900px; | |
| margin: 0 auto; | |
| padding: 2rem; | |
| width: 100%; | |
| flex: 1; | |
| } | |
| /* ===== Input Card ===== */ | |
| .input-card { | |
| background: var(--color-surface); | |
| border: 1px solid var(--color-border); | |
| border-radius: var(--radius-lg); | |
| padding: 1.75rem; | |
| box-shadow: var(--shadow-md); | |
| margin-bottom: 2rem; | |
| transition: box-shadow var(--transition-normal); | |
| } | |
| .input-card:focus-within { | |
| box-shadow: var(--shadow-lg), var(--shadow-glow); | |
| border-color: var(--color-border-focus); | |
| } | |
| .input-card label { | |
| display: block; | |
| font-size: 0.8rem; | |
| font-weight: 600; | |
| color: var(--color-text-secondary); | |
| text-transform: uppercase; | |
| letter-spacing: 0.08em; | |
| margin-bottom: 0.75rem; | |
| } | |
| .textarea-wrapper { | |
| position: relative; | |
| } | |
| .input-card textarea { | |
| width: 100%; | |
| min-height: 140px; | |
| padding: 1rem; | |
| border: 1.5px solid var(--color-border); | |
| border-radius: var(--radius-md); | |
| background: var(--color-bg); | |
| color: var(--color-text-primary); | |
| font-family: inherit; | |
| font-size: 0.95rem; | |
| line-height: 1.7; | |
| resize: vertical; | |
| transition: border-color var(--transition-fast), box-shadow var(--transition-fast); | |
| outline: none; | |
| } | |
| .input-card textarea:focus { | |
| border-color: var(--color-accent); | |
| box-shadow: 0 0 0 3px var(--color-accent-glow); | |
| } | |
| .input-card textarea::placeholder { | |
| color: var(--color-text-muted); | |
| } | |
| .char-count { | |
| position: absolute; | |
| bottom: 12px; | |
| right: 14px; | |
| font-size: 0.72rem; | |
| color: var(--color-text-muted); | |
| font-weight: 500; | |
| pointer-events: none; | |
| } | |
| .input-actions { | |
| display: flex; | |
| align-items: center; | |
| justify-content: space-between; | |
| margin-top: 1rem; | |
| gap: 1rem; | |
| } | |
| .sample-btns { | |
| display: flex; | |
| gap: 0.5rem; | |
| flex-wrap: wrap; | |
| } | |
| .sample-btn { | |
| padding: 6px 14px; | |
| border: 1px solid var(--color-border); | |
| border-radius: var(--radius-full); | |
| background: var(--color-surface); | |
| color: var(--color-text-secondary); | |
| font-size: 0.78rem; | |
| font-weight: 500; | |
| cursor: pointer; | |
| transition: all var(--transition-fast); | |
| font-family: inherit; | |
| } | |
| .sample-btn:hover { | |
| background: var(--color-surface-hover); | |
| border-color: var(--color-accent); | |
| color: var(--color-accent); | |
| transform: translateY(-1px); | |
| } | |
| .analyze-btn { | |
| display: inline-flex; | |
| align-items: center; | |
| gap: 8px; | |
| padding: 10px 28px; | |
| background: var(--color-accent-gradient); | |
| color: white; | |
| border: none; | |
| border-radius: var(--radius-full); | |
| font-size: 0.9rem; | |
| font-weight: 600; | |
| cursor: pointer; | |
| transition: all var(--transition-normal); | |
| box-shadow: var(--shadow-sm); | |
| font-family: inherit; | |
| white-space: nowrap; | |
| } | |
| .analyze-btn:hover:not(:disabled) { | |
| transform: translateY(-2px); | |
| box-shadow: var(--shadow-md), 0 4px 20px rgba(124, 107, 240, 0.3); | |
| } | |
| .analyze-btn:active:not(:disabled) { | |
| transform: translateY(0); | |
| } | |
| .analyze-btn:disabled { | |
| opacity: 0.55; | |
| cursor: not-allowed; | |
| } | |
| .analyze-btn .btn-icon { | |
| font-size: 1.1rem; | |
| transition: transform var(--transition-normal); | |
| } | |
| .analyze-btn:hover:not(:disabled) .btn-icon { | |
| transform: translateX(2px); | |
| } | |
| /* Loading spinner */ | |
| .spinner { | |
| width: 18px; | |
| height: 18px; | |
| border: 2.5px solid rgba(255, 255, 255, 0.3); | |
| border-top-color: white; | |
| border-radius: 50%; | |
| animation: spin 0.7s linear infinite; | |
| } | |
| @keyframes spin { | |
| to { transform: rotate(360deg); } | |
| } | |
| /* ===== Results ===== */ | |
| .results-section { | |
| animation: fadeInUp 0.5s ease-out; | |
| } | |
| @keyframes fadeInUp { | |
| from { opacity: 0; transform: translateY(20px); } | |
| to { opacity: 1; transform: translateY(0); } | |
| } | |
| .results-header { | |
| display: flex; | |
| align-items: center; | |
| gap: 10px; | |
| margin-bottom: 1.25rem; | |
| } | |
| .results-header h2 { | |
| font-size: 1.15rem; | |
| font-weight: 700; | |
| color: var(--color-text-primary); | |
| } | |
| .results-header .icon { | |
| font-size: 1.3rem; | |
| } | |
| /* ===== Comparison Grid ===== */ | |
| .comparison-grid { | |
| display: grid; | |
| grid-template-columns: 1fr 1fr; | |
| gap: 1.25rem; | |
| margin-bottom: 1.5rem; | |
| } | |
| .model-card { | |
| background: var(--color-surface); | |
| border: 1px solid var(--color-border); | |
| border-radius: var(--radius-lg); | |
| padding: 1.5rem; | |
| box-shadow: var(--shadow-sm); | |
| transition: all var(--transition-normal); | |
| position: relative; | |
| overflow: hidden; | |
| } | |
| .model-card::before { | |
| content: ''; | |
| position: absolute; | |
| top: 0; | |
| left: 0; | |
| right: 0; | |
| height: 3px; | |
| } | |
| .model-card.tfidf::before { | |
| background: linear-gradient(90deg, #F59E0B, #FBBF24); | |
| } | |
| .model-card.bert::before { | |
| background: linear-gradient(90deg, #6366F1, #818CF8); | |
| } | |
| .model-card:hover { | |
| box-shadow: var(--shadow-md); | |
| transform: translateY(-2px); | |
| } | |
| .model-tag { | |
| display: inline-flex; | |
| align-items: center; | |
| gap: 5px; | |
| padding: 4px 12px; | |
| border-radius: var(--radius-full); | |
| font-size: 0.72rem; | |
| font-weight: 700; | |
| text-transform: uppercase; | |
| letter-spacing: 0.06em; | |
| margin-bottom: 1rem; | |
| } | |
| .model-tag.tfidf { | |
| background: var(--color-tfidf-bg); | |
| color: var(--color-tfidf); | |
| border: 1px solid var(--color-tfidf-border); | |
| } | |
| .model-tag.bert { | |
| background: var(--color-bert-bg); | |
| color: var(--color-bert); | |
| border: 1px solid var(--color-bert-border); | |
| } | |
| .sentiment-result { | |
| text-align: center; | |
| padding: 0.75rem 0; | |
| } | |
| .sentiment-emoji { | |
| font-size: 2.5rem; | |
| margin-bottom: 0.5rem; | |
| display: block; | |
| animation: bounceIn 0.5s ease-out; | |
| } | |
| @keyframes bounceIn { | |
| 0% { transform: scale(0); } | |
| 50% { transform: scale(1.2); } | |
| 100% { transform: scale(1); } | |
| } | |
| .sentiment-label { | |
| display: inline-flex; | |
| align-items: center; | |
| gap: 6px; | |
| padding: 6px 16px; | |
| border-radius: var(--radius-full); | |
| font-size: 0.85rem; | |
| font-weight: 700; | |
| letter-spacing: 0.04em; | |
| } | |
| .sentiment-label.positive { | |
| background: var(--color-positive-bg); | |
| color: var(--color-positive); | |
| border: 1px solid var(--color-positive-border); | |
| } | |
| .sentiment-label.negative { | |
| background: var(--color-negative-bg); | |
| color: var(--color-negative); | |
| border: 1px solid var(--color-negative-border); | |
| } | |
| /* Confidence meter */ | |
| .confidence-section { | |
| margin-top: 1.25rem; | |
| } | |
| .confidence-header { | |
| display: flex; | |
| justify-content: space-between; | |
| align-items: center; | |
| margin-bottom: 6px; | |
| } | |
| .confidence-label { | |
| font-size: 0.75rem; | |
| font-weight: 500; | |
| color: var(--color-text-secondary); | |
| } | |
| .confidence-value { | |
| font-size: 0.85rem; | |
| font-weight: 700; | |
| color: var(--color-text-primary); | |
| } | |
| .confidence-bar { | |
| width: 100%; | |
| height: 8px; | |
| background: var(--color-bg); | |
| border-radius: var(--radius-full); | |
| overflow: hidden; | |
| } | |
| .confidence-fill { | |
| height: 100%; | |
| border-radius: var(--radius-full); | |
| transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1); | |
| position: relative; | |
| } | |
| .confidence-fill.positive { | |
| background: linear-gradient(90deg, #34D399, #10B981); | |
| } | |
| .confidence-fill.negative { | |
| background: linear-gradient(90deg, #FB7185, #F43F5E); | |
| } | |
| .latency { | |
| display: flex; | |
| align-items: center; | |
| gap: 5px; | |
| margin-top: 0.75rem; | |
| font-size: 0.72rem; | |
| color: var(--color-text-muted); | |
| font-weight: 500; | |
| } | |
| .latency .icon { | |
| font-size: 0.85rem; | |
| } | |
| /* ===== Agreement Banner ===== */ | |
| .agreement-banner { | |
| padding: 1rem 1.5rem; | |
| border-radius: var(--radius-md); | |
| display: flex; | |
| align-items: center; | |
| gap: 10px; | |
| font-size: 0.88rem; | |
| font-weight: 600; | |
| margin-bottom: 1.5rem; | |
| animation: fadeInUp 0.5s ease-out 0.2s both; | |
| } | |
| .agreement-banner.agree { | |
| background: var(--color-positive-bg); | |
| color: var(--color-positive); | |
| border: 1px solid var(--color-positive-border); | |
| } | |
| .agreement-banner.disagree { | |
| background: var(--color-negative-bg); | |
| color: var(--color-negative); | |
| border: 1px solid var(--color-negative-border); | |
| } | |
| .agreement-banner .icon { | |
| font-size: 1.2rem; | |
| } | |
| /* ===== Text Preview ===== */ | |
| .text-preview { | |
| background: var(--color-surface); | |
| border: 1px solid var(--color-border); | |
| border-radius: var(--radius-md); | |
| padding: 1.25rem; | |
| animation: fadeInUp 0.5s ease-out 0.3s both; | |
| } | |
| .text-preview-header { | |
| display: flex; | |
| align-items: center; | |
| gap: 6px; | |
| font-size: 0.75rem; | |
| font-weight: 600; | |
| color: var(--color-text-secondary); | |
| text-transform: uppercase; | |
| letter-spacing: 0.06em; | |
| margin-bottom: 0.6rem; | |
| } | |
| .text-preview p { | |
| font-size: 0.88rem; | |
| color: var(--color-text-secondary); | |
| line-height: 1.7; | |
| font-style: italic; | |
| } | |
| /* ===== Error State ===== */ | |
| .error-banner { | |
| background: var(--color-negative-bg); | |
| border: 1px solid var(--color-negative-border); | |
| border-radius: var(--radius-md); | |
| padding: 1rem 1.5rem; | |
| display: flex; | |
| align-items: center; | |
| gap: 10px; | |
| color: var(--color-negative); | |
| font-size: 0.88rem; | |
| font-weight: 500; | |
| margin-bottom: 1.5rem; | |
| animation: fadeInUp 0.3s ease-out; | |
| } | |
| .error-banner .icon { | |
| font-size: 1.2rem; | |
| } | |
| /* ===== Footer ===== */ | |
| .footer { | |
| text-align: center; | |
| padding: 2rem; | |
| border-top: 1px solid var(--color-border); | |
| margin-top: auto; | |
| } | |
| .footer p { | |
| font-size: 0.78rem; | |
| color: var(--color-text-muted); | |
| font-weight: 500; | |
| } | |
| .footer a { | |
| color: var(--color-accent); | |
| text-decoration: none; | |
| font-weight: 600; | |
| } | |
| .footer a:hover { | |
| text-decoration: underline; | |
| } | |
| /* ===== Responsive ===== */ | |
| @media (max-width: 700px) { | |
| .hero h1 { | |
| font-size: 2rem; | |
| } | |
| .hero p { | |
| font-size: 0.95rem; | |
| } | |
| .comparison-grid { | |
| grid-template-columns: 1fr; | |
| } | |
| .input-actions { | |
| flex-direction: column; | |
| align-items: stretch; | |
| } | |
| .sample-btns { | |
| justify-content: center; | |
| } | |
| .analyze-btn { | |
| justify-content: center; | |
| } | |
| .header-inner { | |
| padding: 0 0.5rem; | |
| } | |
| } | |
| @media (max-width: 480px) { | |
| .hero h1 { | |
| font-size: 1.65rem; | |
| } | |
| .main { | |
| padding: 1rem; | |
| } | |
| .input-card { | |
| padding: 1.25rem; | |
| } | |
| } | |