:root{--font-family: "Inter", system-ui, -apple-system, sans-serif;--color-bg-primary: 220 20% 97%;--color-bg-card: 0 0% 100%;--color-text-primary: 220 20% 10%;--color-text-secondary: 220 10% 40%;--color-accent: 210 100% 50%;--color-accent-hover: 210 100% 45%;--color-border: 220 20% 90%;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.1);--shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1);--radius-md: .5rem;--radius-lg: .75rem}@media(prefers-color-scheme:dark){:root{--color-bg-primary: 220 20% 10%;--color-bg-card: 220 20% 15%;--color-text-primary: 220 20% 95%;--color-text-secondary: 220 10% 70%;--color-accent: 210 100% 60%;--color-accent-hover: 210 100% 55%;--color-border: 220 20% 25%}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:hsl(var(--color-bg-primary));color:hsl(var(--color-text-primary));line-height:1.5;-webkit-font-smoothing:antialiased}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit;font-size:1rem}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.card{background-color:hsl(var(--color-bg-card));border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:1.5rem;border:1px solid hsl(var(--color-border))}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;border-radius:var(--radius-md);font-weight:500;transition:all .2s;border:none;background-color:hsl(var(--color-accent));color:#fff}.btn:hover{background-color:hsl(var(--color-accent-hover))}.btn-ghost{background-color:transparent;color:hsl(var(--color-text-secondary))}.btn-ghost:hover{background-color:hsla(var(--color-text-primary) / .05);color:hsl(var(--color-text-primary))}.input{width:100%;padding:.5rem .75rem;border-radius:var(--radius-md);border:1px solid hsl(var(--color-border));background-color:hsl(var(--color-bg-card));color:hsl(var(--color-text-primary));transition:border-color .2s}.input:focus{outline:none;border-color:hsl(var(--color-accent));box-shadow:0 0 0 2px hsla(var(--color-accent) / .2)}.label{display:block;font-size:.875rem;font-weight:500;color:hsl(var(--color-text-secondary));margin-bottom:.25rem}