:root{--primary: #3B82F6;--primary-hover: #2563EB;--primary-active: #1D4ED8;--primary-light: rgba(59, 130, 246, .1);--secondary: #8B5CF6;--success: #10B981;--warning: #F59E0B;--error: #EF4444;--bg-primary: #FFFFFF;--bg-secondary: #F8FAFC;--bg-tertiary: #F1F5F9;--text-primary: #0F172A;--text-secondary: #475569;--text-tertiary: #94A3B8;--border-primary: #E2E8F0;--border-secondary: #CBD5E1;--spacing-tight: 8px;--spacing-standard: 16px;--spacing-loose: 24px;--spacing-extra: 32px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;line-height:1.6;color:var(--text-primary);background-color:var(--bg-secondary);transition:background-color .3s ease,color .3s ease}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--spacing-loose)}h1{font-size:32px;font-weight:600;line-height:1.2}h2{font-size:24px;font-weight:600;line-height:1.3}h3{font-size:20px;font-weight:600;line-height:1.4}h4{font-size:18px;font-weight:600;line-height:1.5}a{color:var(--text-primary);text-decoration:none;transition:all .2s ease-in-out}a:hover{color:var(--primary);text-decoration:underline}a:active{color:var(--primary-hover)}button{font-family:inherit;font-size:inherit;border:none;cursor:pointer;outline:none}.btn-primary{background:var(--primary);color:#fff;border-radius:8px;padding:8px 16px;transition:all .2s ease-in-out}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px)}.btn-primary:active{background:var(--primary-active);transform:translateY(1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}input{font-family:inherit;font-size:inherit;border:1px solid var(--border-primary);border-radius:8px;padding:8px 12px;outline:none;transition:all .2s ease-in-out}input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #3b82f61a}ul{list-style:none}.language-selector{position:relative;margin-left:16px}.language-btn{display:flex;align-items:center;gap:6px;padding:8px 12px;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:8px;color:var(--text-primary);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease-in-out}.language-btn:hover{background:var(--bg-secondary);border-color:var(--primary)}.language-btn svg{flex-shrink:0}.language-btn svg:first-child{color:var(--primary)}.language-dropdown{position:absolute;top:calc(100% + 4px);right:0;min-width:140px;background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:8px;box-shadow:0 4px 12px #0000001a;display:none;z-index:1000;overflow:hidden}.language-dropdown.show{display:block}.language-option{display:block;width:100%;padding:10px 16px;background:transparent;border:none;text-align:left;font-size:14px;color:var(--text-primary);cursor:pointer;transition:background .15s ease}.language-option:hover{background:var(--bg-tertiary)}.language-option.active{background:var(--primary);color:#fff}.tool-card.not-implemented{opacity:.7;border:2px dashed #CBD5E1;background:linear-gradient(135deg,#f8fafc,#f1f5f9);cursor:not-allowed;position:relative}.tool-card.not-implemented:hover{transform:translateY(-4px);box-shadow:0 8px 24px #94a3b833}.tool-card.not-implemented .tool-icon{opacity:.5}.tool-card.not-implemented .tool-name{color:var(--text-secondary)}.tool-card.not-implemented .tool-description{color:var(--text-tertiary)}.tool-card.not-implemented .btn-primary{background:#94a3b8;cursor:not-allowed}.tool-card.not-implemented .btn-primary:hover{background:#94a3b8;transform:none}.tool-tag.coming-soon{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;font-weight:600;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.8}}.navbar{background:var(--bg-primary);box-shadow:0 2px 8px #00000014;position:sticky;top:0;z-index:100}.navbar-container{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-standard) 0}.logo{display:flex;align-items:center;gap:var(--spacing-standard);cursor:pointer;transition:all .2s ease-in-out}.logo:hover{transform:translateY(-2px)}.logo span{font-size:20px;font-weight:600;color:var(--text-primary)}.nav-links{display:flex;align-items:center;gap:var(--spacing-loose)}.nav-links a{color:var(--text-secondary);font-size:14px;font-weight:500;transition:color .2s ease}.nav-links a:hover{color:var(--primary);text-decoration:none}.main-content{min-height:calc(100vh - 400px);padding:var(--spacing-extra) 0}.footer{background:var(--bg-tertiary);padding:var(--spacing-extra) 0;margin-top:var(--spacing-extra)}.footer-container{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-loose)}.footer-column h3{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-standard)}.footer-column p{color:var(--text-secondary);font-size:14px;line-height:1.6;margin-bottom:var(--spacing-tight)}.footer-column ul{list-style:none}.footer-column ul li{margin-bottom:var(--spacing-tight)}.footer-column ul li a{color:var(--text-secondary);font-size:14px}.footer-column ul li a:hover{color:var(--primary)}.copyright{margin-top:var(--spacing-standard);font-size:12px;color:var(--text-tertiary)}@media(max-width:1023px){.footer-container{grid-template-columns:repeat(2,1fr)}}@media(max-width:767px){.navbar-container{flex-wrap:wrap}.nav-links{width:100%;justify-content:center;margin-top:var(--spacing-standard)}.footer-container{grid-template-columns:1fr}}[data-theme=dark]{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-tertiary: #0f3460;--text-primary: #eaeaea;--text-secondary: #b8b8b8;--text-tertiary: #888888;--border-primary: #2d3748;--border-secondary: #4a5568;--primary: #4da6ff;--primary-hover: #3b8fd9;--primary-active: #2d7ab8;--primary-light: rgba(77, 166, 255, .15)}.tool-description-section{background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:8px;padding:var(--spacing-loose);margin-top:var(--spacing-loose);max-width:1200px;margin-left:auto;margin-right:auto}.tool-description-title{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-standard);display:flex;align-items:center;gap:8px}.tool-description-title svg{color:var(--primary);flex-shrink:0}.tool-description-content{font-size:14px;line-height:1.6;color:var(--text-secondary)}.tool-description-content p{margin-bottom:12px}.tool-description-content p:last-child{margin-bottom:0}.tool-description-content ul{margin:8px 0;padding-left:20px;list-style:disc}.tool-description-content li{margin-bottom:6px;color:var(--text-secondary)}.tool-description-content a{color:var(--primary);text-decoration:none}.tool-description-content a:hover{text-decoration:underline}@media(max-width:767px){.tool-description-section{margin-left:var(--spacing-standard);margin-right:var(--spacing-standard);padding:var(--spacing-standard)}}