:root{--primary:#0d6efd;--primary-dark:#0b5ed7;--bg:#f8f9fa;--card-bg:#fff;--text:#212529;--text-muted:#6c757d;--border:#dee2e6;--radius:12px;--shadow:0 1px 3px rgba(0,0,0,0.08);--shadow-lg:0 4px 12px rgba(0,0,0,0.12);--sidebar-w:260px;--nav-h:60px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--primary);text-decoration:none}
.container{max-width:1280px;margin:0 auto;padding:0 16px}
.site-header{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);padding:0 16px;border-bottom:1px solid var(--border);background:var(--card-bg);position:sticky;top:0;z-index:100}
.logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text);font-weight:800;font-size:1.2rem}
.main-nav ul{display:flex;list-style:none;gap:2px}
.main-nav a{padding:6px 10px;border-radius:6px;text-decoration:none;color:var(--text-muted);font-size:.8rem;font-weight:500;transition:all .15s;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{background:var(--bg);color:var(--primary)}
.btn-pro{padding:8px 16px;border-radius:8px;background:var(--primary);color:#fff!important;text-decoration:none;font-weight:600;font-size:.8rem;white-space:nowrap}
.btn-pro:hover{background:var(--primary-dark)}
.layout{display:flex;gap:20px;padding:20px 0}
.content{flex:1;min-width:0}
.sidebar{width:var(--sidebar-w);flex-shrink:0}
.sidebar .cat-block{margin-bottom:16px}
.sidebar h4{font-size:.7rem;text-transform:uppercase;color:var(--text-muted);margin-bottom:6px;padding-bottom:4px;border-bottom:1px solid var(--border)}
.sidebar ul{list-style:none}
.sidebar li a{display:block;padding:3px 0;text-decoration:none;color:var(--text);font-size:.8rem}
.sidebar li a:hover{color:var(--primary)}
.affiliate-block{background:linear-gradient(135deg,#f0f4ff,#e8eeff);border-radius:var(--radius);padding:14px;margin-bottom:16px}
.affiliate-block h4{color:var(--primary)}
.affiliate-block a{font-size:.78rem;font-weight:600}
.hero{text-align:center;padding:40px 0 28px}
.hero h1{font-size:2rem;font-weight:800;margin-bottom:10px;line-height:1.2}
.hero p{font-size:1rem;color:var(--text-muted);max-width:600px;margin:0 auto 20px}
.hero-search{max-width:460px;margin:0 auto}
.hero-search input{width:100%;padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius);font-size:.95rem;outline:none}
.hero-search input:focus{border-color:var(--primary)}
.category-tabs{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-bottom:20px}
.cat-tab{padding:5px 12px;border:1px solid var(--border);border-radius:20px;background:var(--card-bg);cursor:pointer;font-size:.78rem;font-weight:500}
.cat-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px;margin-bottom:28px}
.tool-card{display:flex;flex-direction:column;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-decoration:none;color:var(--text);transition:all .15s;position:relative}
.tool-card:hover{box-shadow:var(--shadow-lg);border-color:var(--primary);transform:translateY(-2px)}
.tool-card-icon{width:36px;height:36px;border-radius:8px;background:var(--primary);margin-bottom:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem}
.tool-card h3{font-size:.9rem;font-weight:600;margin-bottom:4px;display:flex;align-items:center;gap:5px}
.tool-card p{font-size:.78rem;color:var(--text-muted);line-height:1.4}
.flagship-badge{background:#dc3545;color:#fff;font-size:.6rem;padding:2px 5px;border-radius:3px;font-weight:700}
.pro-tag{background:#ffc107;color:#000;font-size:.6rem;padding:2px 5px;border-radius:3px;font-weight:700}
.why-us{padding:28px 0}
.why-us h2{text-align:center;margin-bottom:20px}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.feature{text-align:center;padding:16px}
.feature h3{color:var(--primary);margin-bottom:6px;font-size:1rem}
.feature p{color:var(--text-muted);font-size:.85rem}
.seo-content{padding:20px;background:var(--card-bg);border-radius:var(--radius);margin-bottom:24px}
.seo-content h2{margin-bottom:10px;font-size:1.25rem}
.seo-content p{margin-bottom:10px;color:var(--text-muted);font-size:.9rem}
.ad-zone{min-height:90px;margin:12px 0;border:1px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;background:#fafbff}
.ad-placeholder small{color:var(--text-muted);font-size:.7rem}
.tool-header{margin-bottom:20px}
.tool-header h1{font-size:1.6rem;font-weight:700;margin-bottom:6px}
.tool-desc{color:var(--text-muted);font-size:.9rem}
.pro-banner{background:linear-gradient(135deg,#fff3cd,#ffe69c);border-radius:8px;padding:10px 14px;margin:10px 0;display:flex;align-items:center;gap:10px}
.pro-badge{background:#ffc107;color:#000;font-size:.65rem;padding:2px 7px;border-radius:4px;font-weight:700}
.pro-unlocked{background:#d1e7dd;border-radius:8px;padding:10px 14px;margin:10px 0}
.pro-badge.active{background:#198754;color:#fff}
.tool-container{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px}
textarea,input[type=text],input[type=number],input[type=password],select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:.9rem;outline:none;transition:border-color .15s}
textarea:focus,input:focus,select:focus{border-color:var(--primary)}
textarea{resize:vertical;font-family:'Courier New',monospace;font-size:.85rem}
.btn{padding:10px 18px;border:none;border-radius:8px;font-weight:600;cursor:pointer;font-size:.85rem;transition:all .15s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-primary:disabled{background:#adb5bd;cursor:not-allowed}
.btn-secondary{background:var(--border);color:var(--text)}
.btn-secondary:hover{background:#ced4da}
.btn-secondary:disabled{opacity:.5;cursor:not-allowed}
.btn-ghost{background:transparent;color:var(--text-muted)}
.btn-ghost:hover{background:var(--bg)}
.btn-large{padding:12px 24px;font-size:.95rem}
.action-bar{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:10px;margin-top:14px}
.stat-card{background:var(--bg);border-radius:8px;padding:10px;text-align:center}
.stat-value{display:block;font-size:1.3rem;font-weight:700;color:var(--primary)}
.stat-label{font-size:.7rem;color:var(--text-muted)}
.related-tools{margin:20px 0}
.related-tools h3{margin-bottom:10px;font-size:1rem}
.tool-grid-mini{display:flex;gap:6px;flex-wrap:wrap}
.tool-card-mini{display:flex;align-items:center;gap:5px;padding:6px 10px;border:1px solid var(--border);border-radius:8px;text-decoration:none;color:var(--text);font-size:.78rem}
.tool-card-mini:hover{border-color:var(--primary);color:var(--primary)}
.tool-faq{margin:20px 0}
.faq-item{background:var(--card-bg);border-radius:8px;padding:14px;margin-bottom:6px}
.faq-item h4{font-size:.9rem;margin-bottom:4px}
.faq-item p{font-size:.82rem;color:var(--text-muted)}
.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:32px;text-align:center;cursor:pointer;transition:all .15s}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary);background:#fafbff}
.drop-zone p{color:var(--text-muted)}
.input-meta{display:flex;justify-content:space-between;margin-top:4px;font-size:.75rem;color:var(--text-muted)}
.output-meta{display:flex;justify-content:space-between;margin-top:4px;font-size:.75rem;color:var(--text-muted)}
.uses-left{font-weight:600}
.settings-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:8px}
.settings-row label{font-size:.82rem;display:flex;align-items:center;gap:4px}
.humanizer-settings{margin-top:16px;padding:14px;background:var(--bg);border-radius:8px}
.humanizer-settings h4{margin-bottom:8px;font-size:.9rem}
.humanizer-settings input[type=range]{width:auto}
.json-status{margin-top:6px;font-size:.82rem}
.case-buttons{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.case-buttons button{padding:8px 12px;border:1px solid var(--border);border-radius:6px;background:var(--card-bg);cursor:pointer;font-size:.8rem}
.case-buttons button:hover{border-color:var(--primary);color:var(--primary)}
.password-display{display:flex;gap:6px;margin-bottom:14px}
.password-display input{font-family:'Courier New',monospace;font-size:1.1rem;font-weight:700}
.password-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.password-strength{margin-top:14px}
.strength-bar{height:8px;background:var(--border);border-radius:4px;margin-top:4px;overflow:hidden}
.strength-bar div{height:100%;border-radius:4px;transition:width .3s}
.color-input{display:flex;gap:8px;align-items:center;margin-bottom:14px}
.color-values{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:14px}
.color-value label{font-size:.75rem;color:var(--text-muted)}
.color-value input{font-family:'Courier New',monospace}
.gradient-preview{height:120px;border-radius:8px;margin-bottom:14px;border:1px solid var(--border)}
.gradient-controls{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
.gradient-output textarea{font-family:'Courier New',monospace}
.diff-inputs{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
.diff-output{margin-top:14px;padding:14px;background:var(--bg);border-radius:8px;font-family:'Courier New',monospace;font-size:.82rem;max-height:300px;overflow:auto}
.diff-add{background:#d1e7dd;color:#0a3622}
.diff-del{background:#f8d7da;color:#842029}
.unit-category{margin-bottom:14px}
.unit-inputs{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.unit-inputs>div{flex:1;min-width:120px}
.unit-table{margin-top:14px}
.unit-table table{width:100%;border-collapse:collapse;font-size:.82rem}
.unit-table td,.unit-table th{padding:6px 8px;border:1px solid var(--border);text-align:left}
.tts-controls{display:grid;grid-template-columns:1fr;gap:8px;margin:10px 0}
.tts-actions{display:flex;gap:6px;flex-wrap:wrap}
.hash-results{margin-top:14px}
.hash-result{margin-bottom:8px}
.hash-result label{font-size:.75rem;color:var(--text-muted)}
.hash-result input{font-family:'Courier New',monospace;font-size:.8rem}
.compress-comparison{display:grid;grid-template-columns:1fr 1fr;gap:14px;text-align:center}
.compress-comparison img{max-width:100%;border-radius:8px;border:1px solid var(--border)}
.resize-presets{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.resize-presets button{padding:6px 10px;border:1px solid var(--border);border-radius:6px;background:var(--card-bg);cursor:pointer;font-size:.75rem}
.resize-presets button:hover{border-color:var(--primary)}
.resize-custom{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.top-words{margin-top:14px}
.top-words h4{font-size:.82rem;margin-bottom:4px}
.top-words p{font-size:.78rem;color:var(--text-muted)}
.site-footer{background:var(--card-bg);border-top:1px solid var(--border);padding:28px 0;margin-top:40px}
.footer-content{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px}
.footer-col h4{font-size:.85rem;margin-bottom:6px}
.footer-col p{font-size:.78rem;color:var(--text-muted)}
.footer-col ul{list-style:none}
.footer-col li a{font-size:.78rem;color:var(--text-muted);text-decoration:none}
.footer-col li a:hover{color:var(--primary)}
.footer-bottom{text-align:center;padding-top:14px;border-top:1px solid var(--border);margin-top:14px}
.footer-bottom p{font-size:.72rem;color:var(--text-muted)}
@media(max-width:900px){.sidebar{display:none}.layout{padding:12px 0}.hero h1{font-size:1.4rem}.tool-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.password-options,.gradient-controls,.color-values,.compress-comparison{grid-template-columns:1fr}}
@media(max-width:600px){.main-nav{display:none}.hero{padding:20px 0}.tool-container{padding:14px}.diff-inputs{grid-template-columns:1fr}}