:root{--color-bg-base: #020617;--color-bg-surface: rgba(15, 23, 42, .75);--color-bg-input: rgba(30, 41, 59, .6);--color-border: rgba(255, 255, 255, .1);--color-text-primary: #f8fafc;--color-text-secondary: #94a3b8;--color-brand-blue: #0ea5e9;--color-brand-red: #ef4444;--color-brand-amber: #f59e0b;--color-brand-green: #10b981}[data-theme=light]{--color-bg-base: #f8fafc;--color-bg-surface: rgba(255, 255, 255, .85);--color-bg-input: #ffffff;--color-border: rgba(0, 0, 0, .1);--color-text-primary: #0f172a;--color-text-secondary: #475569;--color-brand-blue: #0284c7;--color-brand-red: #dc2626;--color-brand-amber: #d97706;--color-brand-green: #059669}body{background-color:var(--color-bg-base);color:var(--color-text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;min-height:100dvh;transition:background-color .3s ease,color .3s ease}.card-base{background:var(--color-bg-surface);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--color-border);border-radius:1.25rem;box-shadow:0 10px 30px -10px #0003;transition:background .3s ease,border-color .3s ease}.input-base{background:var(--color-bg-input);border:1px solid var(--color-border);color:var(--color-text-primary);border-radius:.75rem;padding:1rem;width:100%;transition:all .2s}.input-base:focus{border-color:var(--color-brand-blue);outline:none;box-shadow:0 0 15px #0ea5e933}.btn-primary{background:linear-gradient(135deg,var(--color-brand-blue),#0284c7);color:#fff;padding:1.25rem;border-radius:1rem;font-weight:700;letter-spacing:.025em;text-align:center;width:100%;transition:transform .2s,box-shadow .2s;border:1px solid rgba(255,255,255,.1);box-shadow:0 4px 15px #0ea5e94d}.btn-primary:active{transform:scale(.98)}