*{box-sizing:border-box;margin:0;padding:0}:root{--primary:#1a4a7a;--primary-light:#2563a8;--primary-dark:#0f3460;--accent:#22c55e;--accent-light:#4ade80;--bg:#f0f4f8;--card:#fff;--text:#1e293b;--text-secondary:#64748b;--border:#e2e8f0;--shadow:0 2px 8px #00000014;--shadow-lg:0 4px 16px #0000001f;--radius:16px;--radius-sm:12px}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;max-width:480px;min-height:100vh;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;overflow-x:hidden}#root{min-height:100vh}a{color:inherit;text-decoration:none}.app-header{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);color:#fff;z-index:100;justify-content:space-between;align-items:center;padding:16px 20px;display:flex;position:sticky;top:0}.header-left{align-items:center;display:flex}.header-logo{border-radius:8px;width:32px;height:32px;margin-right:10px}.app-header h1{letter-spacing:.5px;color:#fff;margin:0;font-size:16px;font-weight:700}.header-subtitle{color:#fffc;margin-top:2px;font-size:12px}.notification-icon{cursor:pointer;color:#fff;background:#ffffff26;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:background .2s;display:flex}.notification-icon:hover{background:#ffffff40}.stats-grid{grid-template-columns:repeat(3,1fr);gap:10px;padding:16px 16px 0;display:grid}.stat-card{background:var(--card);border-radius:var(--radius-sm);text-align:center;box-shadow:var(--shadow);padding:14px 10px;transition:transform .2s}.stat-card:active{transform:scale(.97)}.stat-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.3px;font-size:11px;font-weight:500}.stat-value{color:var(--text);margin:4px 0 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.2s}.tool-card:hover{box-shadow:var(--shadow-lg);border-color:var(--primary-light)}.tool-card:active{transform:scale(.97)}.tool-icon{border-radius:14px;justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:12px;display:flex}.tool-icon.audit{color:#0284c7;background:#e0f2fe}.tool-icon.hashtag{color:#d97706;background:#fef3c7}.tool-icon.strategy{color:#059669;background:#d1fae5}.tool-icon.engagement{color:#7c3aed;background:#ede9fe}.tool-name{color:var(--text);margin-bottom:6px;font-size:14px;font-weight:700}.tool-desc{color:var(--text-secondary);font-size:12px;line-height:1.4}.bottom-nav{background:var(--card);border-top:1px solid var(--border);width:100%;max-width:480px;padding:8px 0;padding-bottom:max(8px, env(safe-area-inset-bottom));z-index:100;justify-content:space-around;display:flex;position:fixed;bottom:0;left:50%;transform:translate(-50%);box-shadow:0 -2px 10px #0000000d}.nav-item{cursor:pointer;color:var(--text-secondary);background:0 0;border:none;flex-direction:column;align-items:center;padding:6px 16px;font-family:inherit;transition:color .2s;display:flex}.nav-item.active{color:var(--primary)}.nav-item span{margin-top:4px;font-size:10px;font-weight:600}.page-content{padding:16px 16px 100px}.detail-header{background:var(--card);border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:16px;display:flex}.back-button{background:var(--bg);cursor:pointer;width:36px;height:36px;color:var(--text);border:none;border-radius:50%;justify-content:center;align-items:center;transition:background .2s;display:flex}.back-button:hover{background:var(--border)}.detail-title{color:var(--text);margin:0;font-size:18px;font-weight:700}.score-card{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);border-radius:var(--radius);color:#fff;text-align:center;margin-bottom:16px;padding:24px}.score-value{font-size:56px;font-weight:800;line-height:1}.score-label{opacity:.85;margin-top:8px;font-size:14px}.metric-item{background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);justify-content:space-between;align-items:center;margin-bottom:10px;padding:16px;display:flex}.metric-info h3{margin-bottom:4px;font-size:14px;font-weight:600}.metric-info p{color:var(--text-secondary);font-size:12px}.metric-score{color:var(--primary);font-size:20px;font-weight:800}.metric-badge{border-radius:20px;margin-top:4px;padding:3px 10px;font-size:11px;font-weight:600;display:inline-block}.metric-badge.excellent{color:#059669;background:#d1fae5}.metric-badge.good{color:#0284c7;background:#e0f2fe}.metric-badge.average{color:#d97706;background:#fef3c7}.hashtag-item{background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);justify-content:space-between;align-items:center;margin-bottom:8px;padding:14px 16px;display:flex}.hashtag-tag{color:var(--primary);font-size:14px;font-weight:600}.hashtag-reach{color:var(--text-secondary);margin-top:2px;font-size:12px}.hashtag-growth{color:var(--accent);font-size:13px;font-weight:700}.recommendation-card{background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);border-left:3px solid var(--primary);align-items:flex-start;gap:10px;margin-bottom:8px;padding:14px 16px;display:flex}.recommendation-card p{color:var(--text);font-size:13px;line-height:1.5}.time-grid{grid-template-columns:repeat(2,1fr);gap:8px;margin-bottom:16px;display:grid}.time-slot{background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);text-align:center;padding:12px}.time-slot .day{color:var(--text-secondary);font-size:12px;font-weight:500}.time-slot .time{color:var(--text);margin:4px 0;font-size:16px;font-weight:700}.time-slot .eng-rate{color:var(--accent);font-size:11px;font-weight:600}.content-type-item{background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);margin-bottom:8px;padding:14px 16px}.content-type-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.content-type-name{font-size:14px;font-weight:600}.content-type-perf{color:var(--primary);font-size:13px;font-weight:700}.progress-bar{background:var(--bg);border-radius:3px;height:6px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);border-radius:3px;height:100%;transition:width .5s}.top-post{background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);align-items:center;margin-bottom:8px;padding:14px 16px;display:flex}.post-rank{background:var(--primary);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;margin-right:12px;font-size:12px;font-weight:700;display:flex}.post-info{text-align:left;flex:1}.post-title{font-size:13px;font-weight:600}.post-type{color:var(--text-secondary);margin-top:2px;font-size:11px}.post-engagement{color:var(--accent);font-size:15px;font-weight:700}.chart-container{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;padding:16px}.chart-title{margin-bottom:16px;font-size:15px;font-weight:700}.performance-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px;display:grid}.performance-card{background:var(--card);border-radius:var(--radius-sm);text-align:center;box-shadow:var(--shadow);padding:16px}.perf-value{color:var(--primary);font-size:24px;font-weight:800}.perf-label{color:var(--text-secondary);margin-top:4px;font-size:11px;font-weight:500}.settings-section{margin-bottom:16px}.settings-section-title{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;padding-left:4px;font-size:13px;font-weight:600}.settings-item{background:var(--card);cursor:pointer;border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px 16px;transition:background .2s;display:flex}.settings-item:first-of-type{border-radius:var(--radius-sm) var(--radius-sm) 0 0}.settings-item:last-of-type{border-radius:0 0 var(--radius-sm) var(--radius-sm);border-bottom:none}.settings-item:only-of-type{border-radius:var(--radius-sm);border-bottom:none}.settings-item:hover{background:var(--bg)}.settings-item-label{font-size:14px;font-weight:500}.settings-item-value{color:var(--text-secondary);font-size:13px}.demo-bar-container{margin-bottom:10px}.demo-bar-label{justify-content:space-between;margin-bottom:4px;font-size:13px;display:flex}.demo-bar{background:var(--bg);border-radius:4px;height:8px;overflow:hidden}.demo-bar-fill{background:linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);border-radius:4px;height:100%;transition:width .5s}.legal-page{padding:16px 16px 100px}.legal-page h2{color:var(--primary);margin-bottom:16px;font-size:20px;font-weight:700}.legal-page h3{margin:16px 0 8px;font-size:16px;font-weight:600}.legal-page p{color:var(--text-secondary);margin-bottom:12px;font-size:14px;line-height:1.7}.legal-page ul{margin-bottom:12px;padding-left:20px}.legal-page li{color:var(--text-secondary);margin-bottom:4px;font-size:14px;line-height:1.7}.loading-container{justify-content:center;align-items:center;padding:60px 0;display:flex}.spinner{border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:32px;height:32px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.subsection-label{color:var(--text);margin:16px 0 10px;font-size:15px;font-weight:700}.relevance-badge{color:#0284c7;background:#e0f2fe;border-radius:20px;padding:4px 10px;font-size:12px;font-weight:600}.summary-row{grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:16px;display:grid}.summary-card{background:var(--card);border-radius:var(--radius-sm);text-align:center;box-shadow:var(--shadow);padding:12px 8px}.summary-value{color:var(--primary);font-size:18px;font-weight:800}.summary-label{color:var(--text-secondary);margin-top:2px;font-size:10px;font-weight:500}