:root{--header-height: 64px;--sidebar-width: 250px;--sidebar-collapsed-width: 70px;--border-radius-sm: 4px;--border-radius-md: 8px;--border-radius-lg: 12px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--bg-primary: hsl(222, 47%, 8%);--bg-secondary: hsl(222, 40%, 12%);--bg-card: hsl(222, 35%, 14%);--bg-hover: hsl(222, 40%, 18%);--text-primary: hsl(210, 40%, 96%);--text-secondary: hsl(215, 20%, 65%);--text-disabled: hsl(215, 20%, 45%);--border: hsl(222, 40%, 20%);--border-focus: hsl(217, 91%, 60%);--accent: hsl(217, 91%, 60%);--accent-hover: hsl(217, 91%, 65%);--accent-transparent: hsla(217, 91%, 60%, .15);--success: hsl(142, 71%, 45%);--warning: hsl(38, 92%, 50%);--danger: hsl(0, 84%, 60%);--info: hsl(199, 89%, 48%);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .4);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .5), 0 2px 4px -1px rgba(0, 0, 0, .3)}:root[data-theme=light]{--bg-primary: hsl(220, 20%, 97%);--bg-secondary: hsl(220, 14%, 93%);--bg-card: hsl(0, 0%, 100%);--bg-hover: hsl(220, 14%, 93%);--text-primary: hsl(222, 47%, 11%);--text-secondary: hsl(215, 16%, 47%);--text-disabled: hsl(215, 16%, 65%);--border: hsl(214, 32%, 91%);--border-focus: hsl(217, 91%, 60%);--accent: hsl(217, 91%, 60%);--accent-hover: hsl(217, 91%, 50%);--accent-transparent: hsla(217, 91%, 60%, .1);--success: hsl(142, 71%, 45%);--warning: hsl(38, 92%, 50%);--danger: hsl(0, 84%, 60%);--info: hsl(199, 89%, 48%);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;transition:background-color .2s ease,color .2s ease}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2}.card{background-color:var(--bg-card);border:1px solid var(--border);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);padding:1.5rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:.5rem}.gap-4{gap:1rem}.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.text-muted{color:var(--text-secondary)}.font-medium{font-weight:500}.input-group{display:flex;flex-direction:column;gap:.5rem}.input{width:100%;background-color:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--border-radius-md);color:var(--text-primary);padding:.75rem 1rem;font-size:1rem;transition:border-color .2s,box-shadow .2s;outline:none}.input:focus{border-color:var(--border-focus);box-shadow:0 0 0 2px var(--accent-transparent)}.input.error{border-color:var(--danger)}.label{font-size:.875rem;font-weight:500;color:var(--text-secondary)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:var(--border-radius-md);font-weight:600;font-size:.875rem;cursor:pointer;transition:all .2s;border:1px solid transparent;gap:.5rem;width:fit-content}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--accent-hover)}.btn-secondary{background-color:var(--bg-secondary);color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover:not(:disabled){background-color:var(--bg-hover)}.btn-ghost{background-color:transparent;color:var(--text-secondary)}.btn-ghost:hover:not(:disabled){background-color:var(--bg-hover);color:var(--text-primary)}.btn-danger{background-color:var(--danger);color:#fff}.btn-icon{padding:.5rem;border-radius:var(--border-radius-sm)}.w-full{width:100%}.mt-2{margin-top:.5rem}.mt-4{margin-top:1rem}.text-danger{color:var(--danger)}.app-layout{display:flex;height:100vh;width:100vw;overflow:hidden;background-color:var(--bg-primary)}.sidebar{width:var(--sidebar-width);background-color:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;transition:width .2s ease;z-index:10}.sidebar.collapsed{width:var(--sidebar-collapsed-width)}.main-wrapper{flex:1;display:flex;flex-direction:column;min-width:0}.header{height:var(--header-height);background-color:var(--bg-card);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 2rem;z-index:5}.content-area{flex:1;overflow-y:auto;padding:2rem}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:var(--bg-primary);padding:1rem}.auth-card{width:100%;max-width:400px;text-align:center}.auth-card .logo{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:2rem;display:flex;align-items:center;justify-content:center;gap:.5rem}