:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-tertiary: #1a1a24;--bg-card: rgba(26, 26, 36, .8);--bg-glass: rgba(255, 255, 255, .03);--accent-primary: #6366f1;--accent-secondary: #8b5cf6;--accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);--accent-glow: rgba(99, 102, 241, .3);--text-primary: #f4f4f5;--text-secondary: #a1a1aa;--text-tertiary: #71717a;--text-accent: #c4b5fd;--border-primary: rgba(255, 255, 255, .08);--border-secondary: rgba(255, 255, 255, .04);--border-accent: rgba(99, 102, 241, .5);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 40px var(--accent-glow);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease}[data-theme=light]{--bg-primary: #f8f9fc;--bg-secondary: #ffffff;--bg-tertiary: #e8e9ed;--bg-card: rgba(255, 255, 255, .95);--bg-glass: rgba(0, 0, 0, .02);--text-primary: #1a1a2e;--text-secondary: #4a4a5a;--text-tertiary: #71717a;--text-accent: #6d28d9;--border-primary: rgba(0, 0, 0, .1);--border-secondary: rgba(0, 0, 0, .05);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .1)}[data-theme=light] body:before{background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(99,102,241,.08),transparent),radial-gradient(ellipse 60% 40% at 80% 60%,rgba(139,92,246,.06),transparent),radial-gradient(ellipse 50% 30% at 20% 80%,rgba(168,85,247,.04),transparent)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(99,102,241,.15),transparent),radial-gradient(ellipse 60% 40% at 80% 60%,rgba(139,92,246,.1),transparent),radial-gradient(ellipse 50% 30% at 20% 80%,rgba(168,85,247,.08),transparent);pointer-events:none;z-index:-1}.app-container{max-width:1200px;margin:0 auto;padding:2rem;min-height:100vh;display:flex;flex-direction:column}.header{text-align:center;margin-bottom:3rem;animation:fadeInDown .6s ease-out}.header-top{display:flex;align-items:center;justify-content:center;gap:1rem;margin-bottom:.75rem;position:relative}.logo{display:flex;align-items:center;justify-content:center;gap:1rem}.logo-icon{display:flex;align-items:center;justify-content:center;filter:drop-shadow(0 4px 12px var(--accent-glow));animation:float 3s ease-in-out infinite}.logo h1{font-size:2.5rem;font-weight:700;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.tagline{color:var(--text-secondary);font-size:1.1rem;font-weight:400}.main-content{flex:1;display:flex;flex-direction:column;gap:2rem}.editor-section{background:var(--bg-card);border:1px solid var(--border-primary);border-radius:var(--radius-xl);padding:1.5rem;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow-lg);animation:fadeInUp .6s ease-out .1s both}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem;flex-wrap:wrap;gap:1rem}.section-header h2{display:flex;align-items:center;gap:.5rem;font-size:1.25rem;font-weight:600;color:var(--text-primary)}.section-icon{font-size:1.5rem}.actions{display:flex;gap:.75rem}.btn{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.25rem;border:none;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.95rem;font-weight:500;cursor:pointer;transition:all var(--transition-normal);position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left var(--transition-slow)}.btn:hover:before{left:100%}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:0 4px 16px var(--accent-glow)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px var(--accent-glow)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--bg-glass);color:var(--text-secondary);border:1px solid var(--border-primary)}.btn-secondary:hover{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-accent)}.btn-icon{font-size:1.1rem}.editor-wrapper{position:relative}.editor{width:100%;min-height:400px;padding:1.25rem;background:var(--bg-secondary);border:1px solid var(--border-secondary);border-radius:var(--radius-lg);color:var(--text-primary);font-family:var(--font-mono);font-size:.95rem;line-height:1.7;resize:vertical;transition:all var(--transition-normal)}.editor::placeholder{color:var(--text-tertiary)}.editor:focus{outline:none;border-color:var(--border-accent);box-shadow:0 0 0 3px var(--accent-glow)}.editor-footer{display:flex;justify-content:space-between;align-items:center;margin-top:.75rem;padding:0 .25rem}.char-count{font-size:.85rem;color:var(--text-tertiary)}.paste-indicator{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--accent-primary);animation:fadeIn .3s ease-out}.paste-indicator.hidden{display:none}.pulse{width:8px;height:8px;background:var(--accent-primary);border-radius:50%;animation:pulse 2s ease-in-out infinite}.info-section{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;animation:fadeInUp .6s ease-out .2s both}.info-card{background:var(--bg-card);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:1.5rem;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);transition:all var(--transition-normal)}.info-card:hover{transform:translateY(-4px);border-color:var(--border-accent);box-shadow:var(--shadow-glow)}.info-icon{font-size:2rem;margin-bottom:.75rem}.info-card h3{font-size:1.1rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.info-card p{font-size:.9rem;color:var(--text-secondary);line-height:1.6}.info-card code{background:var(--bg-tertiary);padding:.15rem .4rem;border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:.85rem;color:var(--text-accent)}.footer{text-align:center;padding:2rem 0 1rem;color:var(--text-tertiary);font-size:.9rem;animation:fadeIn .6s ease-out .3s both}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.2)}}@media(max-width:768px){.app-container{padding:1rem}.logo h1{font-size:2rem}.tagline{font-size:1rem}.section-header{flex-direction:column;align-items:flex-start}.actions{width:100%}.btn{flex:1;justify-content:center}.editor{min-height:300px}}@media(max-width:480px){.logo h1{font-size:1.75rem}.editor{font-size:.9rem;min-height:250px}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}::selection{background:var(--accent-primary);color:#fff}.settings-container{position:relative}.settings-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;background:var(--bg-glass);border:1px solid var(--border-primary);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-normal)}.settings-btn:hover{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-accent)}.settings-btn svg{width:20px;height:20px;transition:transform var(--transition-normal)}.settings-btn:hover svg{transform:rotate(45deg)}.settings-panel{position:absolute;top:calc(100% + .5rem);right:0;width:320px;background:var(--bg-card);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:1rem;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow-lg);z-index:100;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all var(--transition-normal)}.settings-panel.active{opacity:1;visibility:visible;transform:translateY(0)}.settings-section{margin-bottom:1rem}.settings-section:last-child{margin-bottom:0}.settings-section-title{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-tertiary);margin-bottom:.75rem}.theme-toggle{display:flex;background:var(--bg-secondary);border-radius:var(--radius-md);padding:4px;gap:4px}.theme-option{flex:1;display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem .75rem;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-family:var(--font-sans);font-size:.85rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.theme-option:hover{color:var(--text-primary)}.theme-option.active{background:var(--accent-gradient);color:#fff;box-shadow:0 2px 8px var(--accent-glow)}.theme-option svg{width:16px;height:16px}.settings-option{display:flex;align-items:center;justify-content:space-between;padding:.625rem 0;border-bottom:1px solid var(--border-secondary)}.settings-option:last-child{border-bottom:none}.settings-option-label{font-size:.9rem;color:var(--text-primary)}.toggle-switch{position:relative;width:44px;height:24px}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;inset:0;background:var(--bg-tertiary);border-radius:24px;transition:all var(--transition-fast)}.toggle-slider:before{content:"";position:absolute;height:18px;width:18px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:all var(--transition-fast);box-shadow:0 2px 4px #0003}.toggle-switch input:checked+.toggle-slider{background:var(--accent-gradient)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(20px)}.toggle-switch input:focus+.toggle-slider{box-shadow:0 0 0 2px var(--accent-glow)}.settings-divider{height:1px;background:var(--border-primary);margin:.75rem 0}.segment-control{display:flex;background:var(--bg-secondary);border-radius:var(--radius-sm);padding:3px;gap:2px}.segment-option{flex:1;padding:.375rem .5rem;border:none;border-radius:calc(var(--radius-sm) - 2px);background:transparent;color:var(--text-tertiary);font-family:var(--font-sans);font-size:.75rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.segment-option:hover{color:var(--text-secondary)}.segment-option.active{background:var(--accent-gradient);color:#fff}.preview-section{background:var(--bg-card);border:1px solid var(--border-primary);border-radius:var(--radius-xl);padding:1.5rem;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow-lg);animation:fadeInUp .6s ease-out .15s both}.preview-section.hidden{display:none}.preview-wrapper{position:relative}.preview-content{min-height:300px;max-height:500px;padding:1.25rem;background:var(--bg-secondary);border:1px solid var(--border-secondary);border-radius:var(--radius-lg);overflow-y:auto;font-family:var(--font-sans);line-height:1.7}.preview-placeholder{color:var(--text-tertiary);font-style:italic}.preview-content h1,.preview-content h2,.preview-content h3,.preview-content h4,.preview-content h5,.preview-content h6{margin:1.5rem 0 .75rem;font-weight:600;line-height:1.3;color:var(--text-primary)}.preview-content h1:first-child,.preview-content h2:first-child,.preview-content h3:first-child{margin-top:0}.preview-content h1{font-size:1.75rem;border-bottom:1px solid var(--border-primary);padding-bottom:.5rem}.preview-content h2{font-size:1.5rem;border-bottom:1px solid var(--border-secondary);padding-bottom:.375rem}.preview-content h3{font-size:1.25rem}.preview-content p{margin:.75rem 0}.preview-content ul,.preview-content ol{margin:.75rem 0;padding-left:1.5rem}.preview-content li{margin:.25rem 0}.preview-content a{color:var(--accent-primary);text-decoration:none}.preview-content a:hover{text-decoration:underline}.preview-content code{background:var(--bg-tertiary);padding:.15rem .4rem;border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:.9em;color:var(--text-accent)}.preview-content pre{background:var(--bg-tertiary);padding:1rem;border-radius:var(--radius-md);overflow-x:auto;margin:1rem 0}.preview-content pre code{background:transparent;padding:0;font-size:.85rem}.preview-content blockquote{border-left:4px solid var(--accent-primary);margin:1rem 0;padding:.5rem 1rem;background:var(--bg-glass);color:var(--text-secondary)}.preview-content blockquote p{margin:0}.preview-content table{width:100%;border-collapse:collapse;margin:1rem 0}.preview-content th,.preview-content td{border:1px solid var(--border-primary);padding:.5rem .75rem;text-align:left}.preview-content th{background:var(--bg-tertiary);font-weight:600}.preview-content hr{border:none;border-top:1px solid var(--border-primary);margin:1.5rem 0}.preview-content img{max-width:100%;border-radius:var(--radius-md)}.preview-content strong{font-weight:600;color:var(--text-primary)}.preview-content em{font-style:italic}.preview-section[data-refresh-mode=instant] #refresh-preview-btn{display:none}.editor-preview-container{display:flex;flex-direction:column;gap:2rem}@media(min-width:1024px){body:not([data-preview-position=bottom]) .editor-preview-container{flex-direction:row}body:not([data-preview-position=bottom]) .editor-preview-container .editor-section,body:not([data-preview-position=bottom]) .editor-preview-container .preview-section{flex:1;min-width:0}body:not([data-preview-position=bottom]) .editor-preview-container .editor{min-height:500px}body:not([data-preview-position=bottom]) .editor-preview-container .preview-content{min-height:400px}}body[data-preview-position=right] .editor-preview-container{flex-direction:row}body[data-preview-position=right] .editor-preview-container .editor-section,body[data-preview-position=right] .editor-preview-container .preview-section{flex:1;min-width:0}body[data-preview-position=bottom] .editor-preview-container{flex-direction:column}