:root{--indigo: #4f46e5;--indigo-dark: #4338ca;--bg: #f8fafc;--card: #ffffff;--text: #0f172a;--muted: #64748b;--border: #e2e8f0;--green: #16a34a;--amber: #d97706;--red: #dc2626;--blue: #2563eb}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(160deg,var(--indigo) 0%,var(--indigo-dark) 100%)}.login-card{width:100%;max-width:360px;background:var(--card);border-radius:16px;padding:32px 24px;box-shadow:0 20px 40px #0003;text-align:center}.login-card h1{margin:0 0 4px;color:var(--indigo);font-size:28px}.login-card .subtitle{margin:0 0 24px;color:var(--muted);font-size:14px}.login-card form{display:flex;flex-direction:column;gap:12px}.login-card input{padding:14px;border:1px solid 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