*,*:before,*:after{box-sizing:border-box}:root{--bg: #0f1117;--bg-raised: #18181b;--bg-elevated: #1a1b23;--bg-surface: rgba(255, 255, 255, .03);--border: #27272a;--border-subtle: rgba(255, 255, 255, .08);--border-hover: #3f3f46;--text-primary: #f4f4f5;--text-secondary: #e4e4e7;--text-tertiary: #a1a1aa;--text-muted: #71717a;--text-faint: #52525b;--text-ghost: #3f3f46;--accent: #3b82f6;--accent-hover: #60a5fa;--accent-glow: rgba(59, 130, 246, .15);--code-bg: rgba(255, 255, 255, .08);--code-color: #f0abfc;--link-color: #60a5fa;--link-border: rgba(96, 165, 250, .3);--quote-border: rgba(255, 255, 255, .15);--checkbox-border: rgba(255, 255, 255, .2);--checkbox-hover: rgba(255, 255, 255, .35);--modal-bg: #1c1c22;--modal-overlay: rgba(0, 0, 0, .6);--kbd-bg: rgba(255, 255, 255, .08);--kbd-border: rgba(255, 255, 255, .1);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 2px 8px rgba(0, 0, 0, .3);--shadow-lg: 0 24px 48px rgba(0, 0, 0, .4);--mode-active-bg: #27272a;--btn-gradient: linear-gradient(180deg, #4f8ff7 0%, #3b82f6 100%);--btn-gradient-hover: linear-gradient(180deg, #60a0ff 0%, #4b8ef7 100%);--btn-gradient-active: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%);--btn-border: #5b93f5;--btn-border-hover: #6da3f7;--btn-glow: 0 1px 2px rgba(59, 130, 246, .3), 0 0 12px rgba(59, 130, 246, .15);--btn-glow-hover: 0 2px 12px rgba(59, 130, 246, .4), 0 0 20px rgba(59, 130, 246, .2)}[data-theme=light]{--bg: #ffffff;--bg-raised: #f4f4f5;--bg-elevated: #f0f0f2;--bg-surface: rgba(0, 0, 0, .02);--border: #e4e4e7;--border-subtle: rgba(0, 0, 0, .08);--border-hover: #d4d4d8;--text-primary: #18181b;--text-secondary: #27272a;--text-tertiary: #52525b;--text-muted: #71717a;--text-faint: #a1a1aa;--text-ghost: #d4d4d8;--accent: #2563eb;--accent-hover: #3b82f6;--accent-glow: rgba(37, 99, 235, .1);--code-bg: rgba(0, 0, 0, .05);--code-color: #9333ea;--link-color: #2563eb;--link-border: rgba(37, 99, 235, .3);--quote-border: #d4d4d8;--checkbox-border: #d4d4d8;--checkbox-hover: #a1a1aa;--modal-bg: #ffffff;--modal-overlay: rgba(0, 0, 0, .3);--kbd-bg: rgba(0, 0, 0, .05);--kbd-border: rgba(0, 0, 0, .1);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 2px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 24px 48px rgba(0, 0, 0, .12);--mode-active-bg: #ffffff;--btn-gradient: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%);--btn-gradient-hover: linear-gradient(180deg, #4b8ef7 0%, #3b82f6 100%);--btn-gradient-active: linear-gradient(180deg, #2563eb 0%, #1d4ed8 100%);--btn-border: #3b82f6;--btn-border-hover: #4b8ef7;--btn-glow: 0 1px 3px rgba(37, 99, 235, .2);--btn-glow-hover: 0 2px 12px rgba(37, 99, 235, .25)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,Roboto,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg);color:var(--text-secondary);transition:background-color .2s ease,color .2s ease}.App{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:48px 24px;max-width:800px;margin:0 auto;width:100%}@media only screen and (max-width:600px){.App{padding:24px 16px}}.header{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:40px;width:100%;position:relative}.header img{width:42px;height:42px;opacity:.9}.header h1{font-size:32px;font-weight:700;margin:0;letter-spacing:-.5px;color:var(--text-primary)}.theme-toggle{position:absolute;right:0;width:36px;height:36px;border:1px solid var(--border);border-radius:10px;background:var(--bg-raised);color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm)}.theme-toggle:hover{color:var(--text-primary);border-color:var(--border-hover);box-shadow:var(--shadow-md);transform:translateY(-1px)}.theme-toggle:active{transform:translateY(0)}.editor-card{width:100%;flex:1;display:flex;flex-direction:column}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.mode-switcher{display:flex;gap:4px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:12px;padding:4px}.mode-button{padding:8px 20px;border:none;border-radius:9px;background:transparent;color:var(--text-muted);font-weight:500;font-size:13px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);display:inline-flex;align-items:center;gap:6px}.mode-button:hover{color:var(--text-tertiary)}.mode-button.mode-active{color:var(--text-primary);background:var(--mode-active-bg);box-shadow:var(--shadow-md)}.button-group{display:flex;gap:8px}.button{padding:8px 18px;border:1px solid var(--border);border-radius:10px;background:var(--bg-raised);color:var(--text-tertiary);font-weight:500;font-size:13px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm)}.button:hover{background:var(--mode-active-bg);border-color:var(--border-hover);color:var(--text-primary);box-shadow:var(--shadow-md);transform:translateY(-1px)}.button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.button:active{transform:translateY(0);box-shadow:var(--shadow-sm)}.button:disabled{opacity:.4;cursor:not-allowed;transform:none}.button-primary{background:var(--btn-gradient);border:1px solid var(--btn-border);color:#fff;box-shadow:var(--btn-glow)}.button-primary:hover{background:var(--btn-gradient-hover);border-color:var(--btn-border-hover);color:#fff;box-shadow:var(--btn-glow-hover);transform:translateY(-1px)}.button-primary:active{background:var(--btn-gradient-active);transform:translateY(0);box-shadow:var(--btn-glow)}.editor{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:14px;padding:24px;min-height:60vh;transition:border-color .2s ease}.editor:focus-within{border-color:var(--border)}.editor-toolbar{display:flex;align-items:center;gap:2px;padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--border-subtle)}.toolbar-group{display:flex;align-items:center;gap:2px}.toolbar-divider{width:1px;height:20px;background:var(--border-subtle);margin:0 6px}.toolbar-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:none;border-radius:8px;background:transparent;color:var(--text-muted);cursor:pointer;transition:all .12s ease}.toolbar-btn:hover{background:var(--kbd-bg);color:var(--text-primary)}.toolbar-btn-active{background:var(--accent);color:#fff}.toolbar-btn-active:hover{background:var(--accent-hover);color:#fff}.toolbar-text{font-size:12px;font-weight:700;line-height:1}.editor-content{min-height:50vh;outline:none;color:var(--text-secondary);text-align:left;font-size:16px;line-height:1.7;caret-color:var(--accent)}.editor-paragraph{margin:0 0 4px}.editor-heading-h1{font-size:1.75em;font-weight:700;margin:0 0 12px;color:var(--text-primary);letter-spacing:-.5px}.editor-heading-h2{font-size:1.4em;font-weight:650;margin:0 0 10px;color:var(--text-primary);letter-spacing:-.3px}.editor-heading-h3{font-size:1.15em;font-weight:600;margin:0 0 8px;color:var(--text-secondary)}.editor-text-bold{font-weight:600;color:var(--text-primary)}.editor-text-italic{font-style:italic}.editor-text-strikethrough{text-decoration:line-through;color:var(--text-muted)}.editor-text-code{background:var(--code-bg);padding:2px 7px;border-radius:5px;font-family:SF Mono,Fira Code,Fira Mono,Menlo,Consolas,monospace;font-size:.88em;color:var(--code-color)}.editor-link{color:var(--link-color);text-decoration:none;border-bottom:1px solid var(--link-border);transition:border-color .15s}.editor-link:hover{border-color:var(--link-color)}.editor-quote{border-left:3px solid var(--quote-border);padding-left:16px;margin:4px 0 12px;color:var(--text-tertiary);font-style:italic}.editor-list-ul,.editor-list-ol{padding-left:24px;margin:4px 0 8px}.editor-list-item{margin:4px 0}.editor-checklist-mode{background:transparent;border:none;padding:0;min-height:auto}.editor-checklist-mode:focus-within{border-color:transparent}.editor-checklist-mode .editor-content{min-height:auto}.editor-checklist{list-style:none;padding-left:0;margin:0;display:flex;flex-direction:column;gap:6px}.editor-list-item-checked,.editor-list-item-unchecked{position:relative;padding:14px 16px 14px 48px;margin:0;list-style:none;cursor:pointer;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:12px;transition:all .15s ease;font-size:15px;line-height:1.5}.editor-list-item-unchecked:hover{border-color:var(--border);background:var(--bg-raised)}.editor-list-item-unchecked:before{content:"";position:absolute;left:0;top:0;bottom:0;width:48px;background:transparent;border:none;cursor:pointer}.editor-list-item-unchecked:after{content:"";position:absolute;left:16px;top:50%;transform:translateY(-50%);width:20px;height:20px;border:2px solid var(--checkbox-border);border-radius:6px;pointer-events:none;transition:all .15s}.editor-list-item-unchecked:hover:after{border-color:var(--checkbox-hover)}.editor-list-item-checked{text-decoration:line-through;color:var(--text-faint);border-color:transparent}.editor-list-item-checked:hover{border-color:var(--border-subtle)}.editor-list-item-checked:before{content:"";position:absolute;left:0;top:0;bottom:0;width:48px;background:transparent;border:none;cursor:pointer}.editor-list-item-checked:after{content:"";position:absolute;left:16px;top:50%;transform:translateY(-50%);width:20px;height:20px;background:var(--accent);border:2px solid var(--accent);border-radius:6px;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;background-size:14px}.checklist-drag-handle{display:none;position:fixed;z-index:10;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;color:var(--text-faint);cursor:grab;transition:color .15s,background .15s}.checklist-drag-handle:hover{color:var(--text-secondary);background:var(--bg-raised)}.checklist-drag-handle:active{cursor:grabbing}.checklist-drop-indicator{display:none;position:fixed;z-index:10;height:3px;border-radius:2px;background:var(--accent);pointer-events:none}.checklist-item-dragging{opacity:.4}.modal-overlay{position:fixed;inset:0;background:var(--modal-overlay);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);z-index:100;display:flex;justify-content:center;align-items:center;text-align:left;opacity:1;transition:opacity .25s ease,visibility .25s ease}.modal-overlay.hidden{opacity:0;visibility:hidden;pointer-events:none}.modal-content{background:var(--modal-bg);border:1px solid var(--border);border-radius:20px;padding:0;width:420px;max-width:90vw;box-shadow:var(--shadow-lg),0 0 0 1px var(--border-subtle);overflow:hidden;animation:modalIn .2s cubic-bezier(.16,1,.3,1)}@keyframes modalIn{0%{opacity:0;transform:scale(.95) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px 0}.modal-title{font-size:15px;font-weight:600;color:var(--text-primary);letter-spacing:-.2px;display:flex;align-items:center;gap:10px}.modal-title svg{color:var(--text-muted)}.modal-close{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border:none;border-radius:8px;background:transparent;color:var(--text-faint);cursor:pointer;transition:all .15s}.modal-close:hover{background:var(--kbd-bg);color:var(--text-primary)}.shortcut-section{padding:16px 24px 8px}.shortcut-section-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-faint);margin-bottom:8px}.shortcut-row{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;margin:0 -10px;border-radius:8px;border:none}.shortcut-key{display:inline-flex;align-items:center;gap:3px}.shortcut-plus{color:var(--text-faint);font-size:10px;margin:0 1px}.shortcut-key kbd{background:var(--bg-raised);border:1px solid var(--border);border-radius:7px;padding:4px 9px;font-size:12px;font-family:inherit;color:var(--text-tertiary);min-width:28px;text-align:center;box-shadow:0 1px 0 var(--border),inset 0 .5px #ffffff0a;line-height:1.2}.shortcut-value{color:var(--text-secondary);font-size:13px;font-weight:500}.modal-footer{padding:12px 24px;text-align:center;border-top:1px solid var(--border-subtle);color:var(--text-faint);font-size:11px;margin-top:8px}.modal-footer kbd{background:var(--bg-raised);border:1px solid var(--border);border-radius:5px;padding:2px 7px;font-size:10px;font-family:inherit;color:var(--text-tertiary);box-shadow:0 1px 0 var(--border)}.footer-hint{margin-top:16px;text-align:center;color:var(--text-ghost);font-size:12px}.footer-hint kbd{background:var(--kbd-bg);border:1px solid var(--kbd-border);border-radius:5px;padding:2px 6px;font-size:11px;font-family:inherit}