:root {
  color-scheme: light;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: #13202b;
  background: #eaf0f5;
}

* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; background: radial-gradient(circle at 20% 0, #f9fcff 0, #eaf0f5 48%, #dfe8ef 100%); }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(440px, 100%); padding: 34px; border: 1px solid #c8d4df; border-top: 5px solid #1da6cf; background: #fff; box-shadow: 0 22px 65px rgba(23, 45, 62, .14); }
.brand-mark { width: 52px; height: 52px; display: grid; place-items: center; color: #fff; background: #122533; border-radius: 9px; font-weight: 850; letter-spacing: .06em; }
.eyebrow { margin: 24px 0 5px; color: #367187; font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(28px, 5vw, 38px); line-height: 1.05; }
.lead { margin: 14px 0 24px; color: #60717f; line-height: 1.55; }
form { display: grid; gap: 8px; }
label { margin-top: 8px; color: #4b5f6e; font-size: 12px; font-weight: 750; }
input { min-height: 44px; width: 100%; padding: 9px 11px; border: 1px solid #aebdca; border-radius: 5px; font: inherit; }
input:focus { outline: 3px solid rgba(29, 166, 207, .22); border-color: #1684a5; }
button { min-height: 46px; margin-top: 16px; border: 0; border-radius: 5px; color: #fff; background: #106e8e; font: 800 14px inherit; cursor: pointer; }
button:hover { background: #0c5974; }
.login-error { margin-bottom: 14px; padding: 11px 12px; color: #8e2821; background: #fff2f1; border-left: 4px solid #c74942; font-size: 13px; }
.safety-note { margin: 22px 0 0; padding-top: 16px; color: #637685; border-top: 1px solid #dbe3e9; font-size: 12px; line-height: 1.45; }