:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-primary: #38bdf8;--accent-hover: #0ea5e9;--accent-glow: rgba(56, 189, 248, .15);--danger: #f43f5e;--success: #10b981;--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--border-subtle: 1px solid var(--bg-tertiary);--transition-fast: .15s ease-in-out;--transition-normal: .3s ease-in-out}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;width:100%;font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.app-container{display:flex;flex-direction:column;height:100vh;width:100vw;overflow:hidden}@media(min-width:768px){.app-container{display:grid;grid-template-columns:360px 1fr;grid-template-rows:1fr;grid-template-areas:"sidebar main";height:100vh;width:100vw}}.app-header{grid-area:header;display:flex;align-items:center;justify-content:space-between;padding:0 var(--spacing-lg);background-color:var(--bg-secondary);border-bottom:var(--border-subtle);height:64px;z-index:10}.app-header h1{font-size:1.15rem;font-weight:600;letter-spacing:-.01em;display:flex;align-items:center;gap:var(--spacing-sm)}.app-sidebar{grid-area:sidebar;background-color:var(--bg-secondary);border-right:var(--border-subtle);padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-lg);overflow-y:auto}@media(max-width:767.98px){.app-sidebar{width:100%;max-height:40vh;border-right:none;border-bottom:var(--border-subtle)}}.app-main{grid-area:main;background-color:var(--bg-primary);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;width:100%;height:100%;padding:var(--spacing-md)}@media(min-width:768px){.app-main{padding:var(--spacing-xl)}}