.landing{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:var(--space-md);background-color:var(--color-background)}.landing-content{max-width:600px;width:100%;text-align:center}.landing-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-primary);margin:0 0 var(--space-md) 0}.landing-subtitle{font-size:var(--font-size-xl);color:var(--color-text-secondary);margin:0 0 var(--space-lg) 0}.landing-description{font-size:var(--font-size-base);color:var(--color-text);margin:0 0 var(--space-xl) 0;line-height:1.6}.landing-actions{margin-bottom:var(--space-2xl)}.landing-features{display:grid;gap:var(--space-lg);text-align:left;margin-top:var(--space-2xl)}.landing-feature h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0 0 var(--space-sm) 0}.landing-feature p{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0;line-height:1.5}@media (min-width: 768px){.landing-features{grid-template-columns:repeat(3,1fr)}}.input-label{display:flex;flex-direction:column;gap:var(--space-xs)}.input-label-text{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text)}.drawer-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;z-index:998;display:block}.drawer{position:fixed;top:0;left:0;width:280px;height:100vh;background-color:var(--color-background);border-right:1px solid var(--color-border);z-index:999;transform:translate(-100%);transition:transform .3s ease-in-out;overflow-y:auto}.drawer-open{transform:translate(0)}.drawer-content{padding:var(--space-md)}.drawer-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0 0 var(--space-lg) 0}.drawer-nav{display:flex;flex-direction:column;gap:var(--space-md)}.drawer-nav-item{padding:var(--space-sm) var(--space-md);text-align:left;font-size:var(--font-size-base);color:var(--color-text);background:transparent;border:none;border-radius:4px;cursor:pointer;transition:background-color .2s}.drawer-nav-item:hover{background-color:var(--color-surface)}.drawer-section{margin-top:var(--space-lg)}.drawer-section-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.5px;margin:0 0 var(--space-sm) 0}.drawer-empty{font-size:var(--font-size-sm);color:var(--color-text-secondary);font-style:italic;padding:var(--space-sm) var(--space-md)}.drawer-new-note{background-color:var(--color-primary);color:#fff;font-weight:var(--font-weight-semibold)}.drawer-new-note:hover{background-color:var(--color-primary-hover)}.drawer-section-header{display:flex;justify-content:space-between;align-items:center}.drawer-add-button{width:24px;height:24px;padding:0;border:none;background:transparent;color:var(--color-text-secondary);cursor:pointer;font-size:var(--font-size-lg);line-height:1;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background-color .2s}.drawer-add-button:hover{background-color:var(--color-surface);color:var(--color-text)}.drawer-new-folder{margin-top:var(--space-sm);padding:var(--space-sm);background-color:var(--color-surface);border-radius:4px}.drawer-input{width:100%;padding:var(--space-xs) var(--space-sm);font-size:var(--font-size-sm);border:1px solid var(--color-border);border-radius:4px;background:var(--color-background);color:var(--color-text)}.drawer-input:focus{outline:none;border-color:var(--color-primary)}.drawer-new-folder-actions{display:flex;gap:var(--space-xs);margin-top:var(--space-xs)}.drawer-small-button{flex:1;padding:var(--space-xs) var(--space-sm);font-size:var(--font-size-xs);border:1px solid var(--color-border);background:var(--color-background);color:var(--color-text);border-radius:4px;cursor:pointer;transition:background-color .2s}.drawer-small-button:hover{background-color:var(--color-surface)}.drawer-list{list-style:none;padding:0;margin:0}.drawer-list-item{width:100%;padding:var(--space-sm) var(--space-md);text-align:left;font-size:var(--font-size-sm);color:var(--color-text);background:transparent;border:none;border-radius:4px;cursor:pointer;transition:background-color .2s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.drawer-list-item:hover{background-color:var(--color-surface)}@media (min-width: 768px){.drawer{position:static;transform:translate(0);height:100vh;position:fixed;left:0}.drawer-overlay{display:none}}.sync-status{display:flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-sm);font-size:var(--font-size-xs);border-radius:12px;background-color:var(--color-surface)}.sync-status-icon{font-size:.875rem}.sync-status-offline{color:var(--color-text-secondary)}.sync-status-syncing{color:var(--color-primary)}.sync-status-synced{color:var(--color-success)}.app-shell{display:flex;width:100%;min-height:100vh;background-color:var(--color-background)}.app-shell-main{flex:1;display:flex;flex-direction:column;min-width:0}.app-shell-header{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);border-bottom:1px solid var(--color-border);background-color:var(--color-background);position:sticky;top:0;z-index:10}.drawer-toggle{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;background:transparent;color:var(--color-text);cursor:pointer;border-radius:4px;transition:background-color .2s}.drawer-toggle:hover{background-color:var(--color-surface)}.app-shell-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text);margin:0}.app-shell-content{flex:1;overflow-y:auto;padding:var(--space-md)}@media (min-width: 768px){.app-shell{flex-direction:row}.drawer-toggle,.app-shell-header{display:none}.app-shell-main{margin-left:280px}}@media (max-width: 767px){.drawer-toggle,.app-shell-header{display:flex}}.markdown-toolbar{display:flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm);border-bottom:1px solid var(--color-border);background-color:var(--color-surface);flex-wrap:wrap}.toolbar-button{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid var(--color-border);background:var(--color-background);color:var(--color-text);border-radius:4px;cursor:pointer;font-size:var(--font-size-base);transition:background-color .2s}.toolbar-button:hover{background-color:var(--color-surface)}.toolbar-button:active{background-color:var(--color-border)}.toolbar-separator{width:1px;height:24px;background-color:var(--color-border);margin:0 var(--space-xs)}.note-editor{display:flex;flex-direction:column;height:100%}.note-title-input{width:100%;padding:var(--space-md);font-size:var(--font-size-2xl);font-weight:var(--font-weight-semibold);border:none;border-bottom:1px solid var(--color-border);background:transparent;color:var(--color-text)}.note-title-input:focus{outline:none;border-bottom-color:var(--color-primary)}.note-content-wrapper{flex:1;overflow:auto}.note-content-textarea{width:100%;height:100%;padding:var(--space-md);font-size:var(--font-size-base);line-height:1.6;font-family:Monaco,Menlo,Ubuntu Mono,monospace;border:none;background:transparent;color:var(--color-text);resize:none}.note-content-textarea:focus{outline:none}.note-preview{padding:var(--space-md);font-size:var(--font-size-base);line-height:1.6;color:var(--color-text)}.note-preview h1,.note-preview h2,.note-preview h3,.note-preview h4,.note-preview h5,.note-preview h6{margin-top:var(--space-lg);margin-bottom:var(--space-md);font-weight:var(--font-weight-semibold)}.note-preview p{margin-bottom:var(--space-md)}.note-preview ul,.note-preview ol{margin-bottom:var(--space-md);padding-left:var(--space-xl)}.note-preview code{background-color:var(--color-surface);padding:.125rem .25rem;border-radius:3px;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:.9em}.note-preview pre{background-color:var(--color-surface);padding:var(--space-md);border-radius:4px;overflow-x:auto;margin-bottom:var(--space-md)}.note-preview pre code{background:transparent;padding:0}.note-preview a{color:var(--color-primary);text-decoration:underline}.preview-toggle{position:fixed;bottom:var(--space-lg);right:var(--space-lg);padding:var(--space-sm) var(--space-md);background-color:var(--color-primary);color:#fff;border:none;border-radius:20px;cursor:pointer;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);box-shadow:0 2px 8px #00000026;z-index:100}.preview-toggle:hover{background-color:var(--color-primary-hover)}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#000000de;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;min-width:320px;min-height:100vh}#root{width:100%;min-height:100vh}:root{--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem}:root{--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700}:root{--color-primary: #1f6fd0;--color-primary-hover: #1857a4;--color-text: rgba(0, 0, 0, .87);--color-text-secondary: rgba(0, 0, 0, .6);--color-border: rgba(0, 0, 0, .12);--color-background: #ffffff;--color-surface: #f5f5f5;--color-error: #d32f2f;--color-success: #2e7d32;--color-success-bg: rgba(46, 125, 50, .1);--color-warning: #f59e0b;--color-warning-bg: rgba(245, 158, 11, .1)}@media (prefers-color-scheme: dark){:root{color:#ffffffde;background-color:#121212;--color-text: rgba(255, 255, 255, .87);--color-text-secondary: rgba(255, 255, 255, .6);--color-border: rgba(255, 255, 255, .12);--color-background: #121212;--color-surface: #1e1e1e;--color-success-bg: rgba(46, 125, 50, .2);--color-warning-bg: rgba(245, 158, 11, .2)}}.button{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-sm) var(--space-md);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);line-height:1.5;border:1px solid transparent;border-radius:4px;cursor:pointer;transition:background-color .2s,border-color .2s,color .2s;text-decoration:none;background-color:transparent}.button-primary{background-color:var(--color-primary);color:#fff}.button-primary:hover{background-color:var(--color-primary-hover)}.button-secondary{border-color:var(--color-border);color:var(--color-text)}.button-secondary:hover{background-color:var(--color-surface)}.button-danger{background-color:var(--color-error);color:#fff}.button-danger:hover{background-color:#b71c1c}.button-danger:disabled{opacity:.6;cursor:not-allowed}.button:disabled{opacity:.6;cursor:not-allowed}.input{width:100%;padding:var(--space-sm) var(--space-md);font-size:var(--font-size-base);line-height:1.5;border:1px solid var(--color-border);border-radius:4px;background-color:var(--color-background);color:var(--color-text);transition:border-color .2s}.input:focus{outline:none;border-color:var(--color-primary)}@media (max-width: 768px){:root{--font-size-base: .9375rem}}