:root{--color-primary: #6366f1;--color-primary-light: #818cf8;--color-primary-dark: #4f46e5;--color-primary-fg: #ffffff;--color-accent: #06b6d4;--color-accent-light: #67e8f9;--color-bg: #EDEEF5;--color-surface: #ffffff;--color-surface-card: #f8fafc;--color-border: #E5E7EB;--color-text-primary: #111827;--color-text-secondary: #374151;--color-text-muted: #9CA3AF;--color-danger: #ef4444;--color-danger-fg: #ffffff;--color-warning: #f59e0b;--color-warning-fg: #ffffff;--color-success: #10b981;--color-success-fg: #ffffff;--color-input-bg: #f9fafb;--color-ring: #6366f1;--color-orange: #f97316;--font-sans: "Google Sans Text", "Google Sans", "Inter", system-ui, -apple-system, sans-serif;--font-display: "Google Sans", "Google Sans Text", "Inter", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", monospace;--font-size-xs: .6875rem;--font-size-sm: .8125rem;--font-size-base: .875rem;--font-size-lg: 1rem;--font-size-xl: 1.125rem;--font-size-2xl: 1.375rem;--font-size-3xl: 1.75rem;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--sidebar-width: 260px;--sidebar-collapsed-width: 56px;--topbar-height: 52px;--color-admin-sidebar: #0f172a;--color-admin-sidebar-item: rgba(255,255,255,.07);--color-admin-sidebar-item-active: var(--color-primary);--color-admin-sidebar-text: #cbd5e1;--color-admin-sidebar-text-muted: #64748b;--color-admin-topbar: #1e293b;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .28s ease;--shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);--shadow-lg: 0 8px 24px rgba(0,0,0,.1), 0 4px 8px rgba(0,0,0,.06)}[data-theme=dark]{--color-bg: #0D1117;--color-surface: #161B22;--color-surface-card: #21262D;--color-border: #30363D;--color-text-primary: #F0F6FC;--color-text-secondary: #C9D1D9;--color-text-muted: #6E7681;--color-input-bg: #21262D}[data-theme=dark] .nexus-nav-item{color:#c9d1d9}[data-theme=dark] .nexus-nav-item:hover{background:#ffffff12;color:#f0f6fc}[data-theme=dark] .nexus-nav-item.nexus-nav-item--active{background:#6366f12e;color:#818cf8}[data-theme=dark] .nexus-nav-item .nexus-nav-icon{color:#6e7681}[data-theme=dark] .nexus-nav-item:hover .nexus-nav-icon{color:#c9d1d9}[data-theme=dark] .nexus-nav-item.nexus-nav-item--active .nexus-nav-icon{color:#818cf8}[data-theme=dark] .nexus-sidebar-user-btn:hover{background:#ffffff12!important}[data-theme=dark] .nexus-section-btn:hover{background:#ffffff0a!important}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-sans);scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--color-bg);color:var(--color-text-primary);line-height:1.5;font-size:var(--font-size-base);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer}img,svg{display:block;max-width:100%}@keyframes nexus-spin{to{transform:rotate(360deg)}}@keyframes nexus-fade-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes nexus-slide-in{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}@keyframes nexus-slide-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.nexus-sidebar{position:fixed;top:0;left:0;height:100vh;z-index:100;width:var(--sidebar-width);background:var(--color-surface);border-right:1px solid var(--color-border);display:flex;flex-direction:column;overflow:hidden;transition:width var(--transition-slow);will-change:width}.nexus-sidebar--collapsed{width:var(--sidebar-collapsed-width)}.nexus-topbar{position:fixed;top:0;right:0;height:var(--topbar-height);z-index:99;background:var(--color-surface);border-bottom:1px solid var(--color-border);display:flex;align-items:center;padding:0 20px;gap:10px;transition:left var(--transition-slow)}.nexus-main{height:100vh;box-sizing:border-box;padding-top:var(--topbar-height);margin-left:var(--sidebar-width);background:var(--color-bg);transition:margin-left var(--transition-slow);overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column}.nexus-main--collapsed{margin-left:var(--sidebar-collapsed-width)}.nexus-nav-item{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:7px;margin:1px 8px;font-family:var(--font-sans);font-size:13.5px;font-weight:500;line-height:1.4;text-decoration:none;color:var(--color-text-secondary);background:transparent;border:none;white-space:nowrap;overflow:hidden;transition:background var(--transition-fast),color var(--transition-fast);cursor:pointer}.nexus-nav-item:hover{background:#0000000a;color:var(--color-text-primary)}.nexus-nav-item.nexus-nav-item--active{background:#6366f117;color:#6366f1;font-weight:600}.nexus-nav-item .nexus-nav-icon{flex-shrink:0;display:flex;color:var(--color-text-muted);transition:color var(--transition-fast)}.nexus-nav-item:hover .nexus-nav-icon{color:var(--color-text-secondary)}.nexus-nav-item.nexus-nav-item--active .nexus-nav-icon{color:#6366f1}.nexus-sidebar--collapsed .nexus-nav-item{justify-content:center;padding:10px 0;margin:2px 8px}.nexus-section-btn{display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px 14px 3px;background:transparent;border:none;cursor:pointer;border-radius:6px;transition:background var(--transition-fast)}.nexus-section-btn:hover{background:#00000008}.nexus-section-label{font-family:var(--font-sans);font-size:10.5px;font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.075em}.nexus-section-chevron{display:flex;color:var(--color-text-muted);transition:transform var(--transition-base)}.nexus-section-chevron--closed{transform:rotate(-90deg)}.nexus-sidebar-user-btn{display:flex;align-items:center;gap:9px;padding:8px 10px;margin:1px 8px;width:calc(100% - 16px);background:transparent;border:none;cursor:pointer;border-radius:8px;transition:background var(--transition-fast);text-align:left}.nexus-sidebar-user-btn:hover{background:#0000000a}.nexus-sidebar--collapsed .nexus-sidebar-user-btn{justify-content:center;padding:10px 0;margin:2px 8px;width:calc(100% - 16px)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.nexus-page{padding:28px 32px;animation:nexus-fade-in var(--transition-base) both}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}