:root{--obsidian-ribbon-width: 44px;--obsidian-sidebar-width: 260px;--obsidian-right-sidebar-width: 280px;--obsidian-tab-height: 42px;--obsidian-status-height: 26px;--obsidian-header-height: 44px;--view-header-height: 52px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--font-ui-size: 13px;--font-ui-size-sm: 11px;--font-tab-size: 12px;--motion-fast: .15s;--motion-normal: .25s;--motion-slow: .4s;--ease-out: cubic-bezier(.22, 1, .36, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--bg-primary: #0a0810;--bg-secondary: #110e18;--bg-tertiary: #18141f;--bg-elevated: #211b2a;--bg-hover: #1c1724;--bg-active: #252030;--bg-ribbon: #0d0a14;--bg-tab-active: #0a0810;--bg-tab-inactive: #110e18;--bg-glass: rgba(17, 14, 24, .88);--text-primary: #ebe9f0;--text-secondary: #a8a3b8;--text-muted: #6d6780;--text-faint: #4a4558;--border-color: #2a2438;--border-subtle: #1f1a2a;--border-accent: rgba(139, 92, 246, .4);--accent: #8b5cf6;--accent-light: #a78bfa;--accent-dark: #6d28d9;--accent-bg: rgba(139, 92, 246, .14);--accent-glow: rgba(139, 92, 246, .3);--link: #a78bfa;--link-hover: #c4b5fd;--interactive: #2a2438;--interactive-hover: #352d48;--icon-color: #a8a3b8;--scrollbar-thumb: #3d3550;--scrollbar-track: transparent;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .35);--shadow-md: 0 8px 24px rgba(0, 0, 0, .45);--shadow-glow: 0 0 20px var(--accent-glow);--success: #34d399;--warning: #fbbf24;--error: #f87171;--gradient-purple: linear-gradient(135deg, #6d28d9 0%, #8b5cf6 50%, #a78bfa 100%);--gradient-surface: linear-gradient(180deg, #110e18 0%, #0a0810 100%);--gradient-mesh: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(139, 92, 246, .15), transparent), radial-gradient(ellipse 60% 40% at 100% 100%, rgba(109, 40, 217, .08), transparent)}body{font-size:var(--font-ui-size);letter-spacing:.01em;background-color:var(--bg-primary);color:var(--text-primary)}[data-theme=dark-purple] body,[data-theme=light-purple] 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var(--border-color);padding:6px 10px;padding-bottom:max(6px,env(safe-area-inset-bottom));flex-shrink:0;gap:4px}.obs-mobile-nav .nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:48px;color:var(--text-muted);border-radius:var(--radius-md);transition:all var(--motion-fast) var(--ease-out);text-decoration:none}.obs-mobile-nav .nav-item .nav-label{font-size:10px;font-weight:500}.obs-mobile-nav .nav-item.active{color:var(--accent-light);background:var(--accent-bg)}.workspace-view{flex:1;display:flex;flex-direction:column;height:100%;overflow:hidden;animation:fadeIn var(--motion-normal) var(--ease-out)}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.workspace-header{display:flex;align-items:center;justify-content:space-between;min-height:var(--view-header-height);padding:0 20px;border-bottom:1px solid 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var(--border-subtle);background:var(--bg-primary);flex-shrink:0}.obs-editor-scroll{flex:1;overflow-y:auto;width:100%;background:var(--bg-primary)}.obs-editor-inner{width:100%;max-width:100%;padding:28px 32px 80px;margin:0;box-sizing:border-box}.empty-workspace,.mobile-pick-note{width:100%;max-width:none}.obs-status-bar{display:flex;align-items:center;justify-content:space-between;height:var(--obsidian-status-height);padding:0 14px;font-size:11px;color:var(--text-faint);background:var(--bg-secondary);border-top:1px solid var(--border-subtle);flex-shrink:0}.obs-right-sidebar{width:var(--obsidian-right-sidebar-width);background:var(--bg-secondary);border-left:1px solid var(--border-subtle);display:flex;flex-direction:column;flex-shrink:0}.obs-tree-item{display:flex;align-items:center;gap:6px;width:100%;padding:4px 10px;min-height:28px;font-size:var(--font-ui-size);color:var(--text-secondary);text-align:left;border:none;background:none;cursor:pointer;transition:background 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li:has(.md-task-checkbox):has(.md-task-checkbox:checked)>span:not(.task-list-item){text-decoration:line-through;color:var(--text-muted)}.markdown-content.obsidian .md-task-checkbox{flex-shrink:0;width:18px;height:18px;margin-top:2px;accent-color:var(--accent);cursor:pointer}.markdown-content.obsidian :not(pre)>code{font-size:.92em}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg-primary);background-image:var(--gradient-mesh)}.auth-page:before{content:"";position:fixed;inset:0;background:radial-gradient(circle at 30% 20%,rgba(139,92,246,.12),transparent 50%);pointer-events:none}.auth-card{position:relative;width:100%;max-width:520px;background:var(--bg-glass);backdrop-filter:blur(20px);border:1px solid var(--border-accent);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-md);animation:fadeIn var(--motion-slow) var(--ease-out)}.auth-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.auth-brand .brand-icon{width:44px;height:44px;border-radius:var(--radius-md);background:var(--gradient-purple);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:var(--shadow-glow)}.auth-brand .brand-name{font-size:1.25rem;font-weight:700;letter-spacing:-.03em;color:var(--text-primary)}.auth-brand .brand-tagline{font-size:12px;color:var(--text-muted)}.btn-primary{background:var(--gradient-purple)!important;border:none!important;box-shadow:0 4px 14px var(--accent-glow);transition:transform var(--motion-fast),box-shadow var(--motion-fast)!important}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px var(--accent-glow)}.surface-card{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:border-color var(--motion-fast),box-shadow 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