@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-main: #f8fafc;--bg-surface: #ffffff;--bg-surface-hover: #f1f5f9;--border-light: #e2e8f0;--border-focus: #94a3b8;--text-main: #0f172a;--text-muted: #64748b;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #ef4444;--danger-hover: #dc2626;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-main);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{color:var(--text-main);font-weight:600}button{cursor:pointer;font-family:inherit}input,textarea{font-family:inherit;color:var(--text-main);background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:.5rem .75rem;transition:border-color .2s,box-shadow .2s;outline:none}input:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 2px #2563eb33}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-focus)}.flex{display:flex}.flex-col{display:flex;flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:.5rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}.w-full{width:100%}.h-full{height:100%}.app-container{display:flex;flex-direction:column;height:100vh;overflow:hidden}.header{height:60px;background:var(--bg-surface);border-bottom:1px solid var(--border-light);padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between;flex-shrink:0;z-index:10;box-shadow:var(--shadow-sm)}.header h1{font-size:1.25rem;font-weight:700;display:flex;align-items:center;gap:.5rem;color:var(--text-main);letter-spacing:-.025em}.header-actions{display:flex;gap:.75rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem 1rem;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;transition:all .2s;border:1px solid transparent}.btn:active{transform:scale(.97)}.btn-primary{background-color:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{background-color:var(--primary-hover)}.btn-secondary{background-color:var(--bg-surface);color:var(--text-main);border-color:var(--border-light)}.btn-secondary:hover{background-color:var(--bg-surface-hover);border-color:var(--border-focus)}.main-content{display:flex;flex:1;overflow:hidden;position:relative}.editor-pane{flex:1;max-width:50%;display:flex;flex-direction:column;background:var(--bg-main);border-right:1px solid var(--border-light)}.editor-sidebar{padding:1rem;background:var(--bg-surface);border-bottom:1px solid var(--border-light);overflow-x:auto;white-space:nowrap}.add-block-btn{display:inline-flex;align-items:center;gap:.375rem;padding:.375rem .75rem;background:var(--bg-surface);border:1px dashed var(--border-focus);color:var(--text-muted);border-radius:var(--radius-md);font-size:.75rem;font-weight:500;margin-right:.5rem;transition:all .2s}.add-block-btn:hover{color:var(--primary);border-color:var(--primary);background:#2563eb0d}.blocks-container{flex:1;overflow-y:auto;padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem}.editor-block{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:box-shadow .2s}.editor-block:focus-within{box-shadow:var(--shadow-md);border-color:var(--border-focus)}.block-header{padding:.75rem 1rem;border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;background:#f8fafc;border-top-left-radius:var(--radius-lg);border-top-right-radius:var(--radius-lg)}.block-title{font-size:.875rem;font-weight:600;color:var(--text-main);display:flex;align-items:center;gap:.5rem;text-transform:capitalize}.block-actions{display:flex;gap:.25rem}.icon-btn{background:transparent;border:none;color:var(--text-muted);width:28px;height:28px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all .2s}.icon-btn:hover{background:var(--bg-surface-hover);color:var(--text-main)}.icon-btn.danger:hover{color:var(--danger);background:#ef44441a}.block-content{padding:1rem;display:flex;flex-direction:column;gap:1rem}.form-group{display:flex;flex-direction:column;gap:.375rem}.form-group label{font-size:.75rem;font-weight:600;color:var(--text-muted)}.feature-item{display:flex;gap:.5rem;margin-bottom:.5rem}.preview-pane{flex:1;background:var(--bg-surface);overflow-y:auto;position:relative}.markdown-preview{padding:3rem;max-width:800px;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:16px;line-height:1.5;color:#24292f}.markdown-preview h1{font-size:2em;padding-bottom:.3em;border-bottom:1px solid #d0d7de;margin-top:24px;margin-bottom:16px;font-weight:600}.markdown-preview h2{font-size:1.5em;padding-bottom:.3em;border-bottom:1px solid #d0d7de;margin-top:24px;margin-bottom:16px;font-weight:600}.markdown-preview p{margin-top:0;margin-bottom:16px}.markdown-preview ul{padding-left:2em;margin-top:0;margin-bottom:16px}.markdown-preview pre{padding:16px;overflow:auto;font-size:85%;line-height:1.45;background-color:#f6f8fa;border-radius:6px;margin-top:0;margin-bottom:16px}.markdown-preview code{padding:.2em .4em;margin:0;font-size:85%;background-color:#afb8c133;border-radius:6px;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,Liberation Mono,monospace}.markdown-preview pre code{padding:0;background-color:transparent}@media(max-width:768px){.main-content{flex-direction:column}.editor-pane{max-width:100%;border-right:none;border-bottom:1px solid var(--border-light);height:50vh}}