:root{--bg-color: hsl(240, 10%, 4%);--surface-color: hsla(240, 10%, 10%, .6);--surface-border: hsla(0, 0%, 100%, .08);--accent-color: hsl(260, 80%, 70%);--accent-soft: hsla(260, 80%, 70%, .1);--text-primary: hsl(0, 0%, 95%);--text-secondary: hsl(0, 0%, 65%);--glass-blur: blur(12px);--shadow-soft: 0 8px 32px 0 hsla(0, 0%, 0%, .37);--sidebar-width: 260px;--radius-lg: 16px;--radius-md: 8px;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.6;font-weight:400;color-scheme:dark;color:var(--text-primary);background-color:var(--bg-color);font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;background:radial-gradient(circle at top right,hsla(260,50%,20%,.15),transparent),radial-gradient(circle at bottom left,hsla(200,50%,20%,.15),transparent),var(--bg-color);overflow-x:hidden}.app-container{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);height:100vh;position:fixed;background:var(--surface-color);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border-right:1px solid var(--surface-border);padding:2rem 1.5rem;display:flex;flex-direction:column;gap:2rem;z-index:100}.main-content{margin-left:var(--sidebar-width);flex:1;padding:2rem 3rem;max-width:1400px}h1,h2,h3{font-weight:600;letter-spacing:-.02em;margin-bottom:1rem}.text-gradient{background:linear-gradient(135deg,#fff 0%,var(--accent-color) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.glass-card{background:var(--surface-color);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--surface-border);border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-soft)}.nav-link{display:block;padding:.75rem 1rem;color:var(--text-secondary);text-decoration:none;border-radius:var(--radius-md);transition:all .2s ease;font-weight:500}.nav-link:hover,.nav-link.active{background:var(--accent-soft);color:var(--accent-color)}button{background:var(--accent-color);color:var(--bg-color);border:none;padding:.8rem 1.5rem;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:transform .1s ease,opacity .2s ease}button:hover{opacity:.9;transform:translateY(-1px)}input,select{background:#ffffff08;border:1px solid var(--surface-border);padding:.75rem 1rem;border-radius:var(--radius-md);color:#fff;width:100%;outline:none}input:focus{border-color:var(--accent-color)}select option{background-color:var(--bg-color);color:var(--text-primary)}.flex-center{display:flex;align-items:center;justify-content:center}.gap-md{gap:1rem}