:root{
  color-scheme:light;
  --bg:#f5f7fb;
  --card:#fff;
  --text:#172033;
  --muted:#6d7890;
  --line:#dfe5ee;
  --accent:#2563eb;
  --accent-dark:#1d4ed8;
  --danger-bg:#fff1f2;
  --danger:#b42336;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
body{min-height:100vh}
.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 50% 0%,#e7eefc 0,transparent 38%),var(--bg)}
.login-card{width:min(100%,430px);background:var(--card);border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:0 24px 70px rgba(26,38,65,.11)}
.brand-mark{width:58px;height:58px;border-radius:17px;display:grid;place-items:center;background:#0f172a;color:#fff;font-size:28px;font-weight:800;margin-bottom:24px}
.login-heading .eyebrow{margin:0 0 6px;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.login-heading h1{margin:0;font-size:28px;line-height:1.15}
.login-heading p:not(.eyebrow){margin:10px 0 0;color:var(--muted);line-height:1.55}
.login-alert{margin-top:20px;padding:12px 14px;border-radius:12px;background:var(--danger-bg);color:var(--danger);font-size:14px;font-weight:650}
.login-form{display:grid;gap:18px;margin-top:26px}
.login-form label{display:grid;gap:8px;font-size:14px;font-weight:700}
.login-form input{width:100%;min-height:48px;border:1px solid var(--line);border-radius:12px;padding:0 14px;font:inherit;font-size:16px;color:var(--text);background:#fff;outline:none}
.login-form input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(37,99,235,.11)}
.password-row{position:relative}
.password-row input{padding-right:92px}
.show-password{position:absolute;right:7px;top:7px;bottom:7px;border:0;border-radius:8px;padding:0 10px;background:#eef3fb;color:#34405a;font-weight:750;cursor:pointer}
.login-button{min-height:50px;border:0;border-radius:12px;background:var(--accent);color:#fff;font:inherit;font-weight:800;font-size:15px;cursor:pointer;transition:.15s ease}
.login-button:hover{background:var(--accent-dark)}
.login-button:disabled{opacity:.55;cursor:not-allowed}
.security-note{margin:22px 0 0;text-align:center;color:var(--muted);font-size:12px}
@media(max-width:520px){
  .login-page{padding:16px;align-items:center}
  .login-card{padding:26px 20px;border-radius:18px}
  .login-heading h1{font-size:25px}
}