:root{--background:#0f172a;--foreground:#f8fafc;--primary:#38bdf8;--primary-hover:#0ea5e9;--secondary:#64748b;--card-bg:rgba(30,41,59,0.7);--card-border:rgba(148,163,184,0.1);--glass-bg:rgba(15,23,42,0.6);--glass-border:rgba(255,255,255,0.08);--radius:12px;--font-sans:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}*{box-sizing:border-box;padding:0;margin:0}body{color:var(--foreground);background:radial-gradient(circle at top center,#1e293b,#0f172a);font-family:var(--font-sans);min-height:100vh;display:flex;flex-direction:column}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}.glass-panel{background:var(--card-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--card-border);border-radius:var(--radius);box-shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06)}.container{max-width:600px;margin:0 auto;padding:2rem 1rem;width:100%}.btn-primary{background:var(--primary);color:#0f172a;font-weight:600;padding:.75rem 1.5rem;border-radius:var(--radius);border:none;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:.5rem}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px rgba(56,189,248,.25)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.input-field{width:100%;background:rgba(15,23,42,.5);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1rem;color:var(--foreground);font-size:1rem;transition:border-color .2s;resize:vertical}.input-field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(56,189,248,.2)}.heading{font-size:2rem;font-weight:800;margin-bottom:2rem;background:linear-gradient(90deg,#fff,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-align:center}