.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: #0f3d5c; }
.auth-shell { width: min(980px, 100%); display: grid; grid-template-columns: 1.05fr .95fr; padding: 0; overflow: hidden; border-radius: 24px; background: #f4f7fb; box-shadow: 0 30px 90px rgba(0,0,0,.3); }
.auth-brand { min-height: 610px; display: flex; flex-direction: column; justify-content: flex-end; padding: clamp(34px, 6vw, 72px); color: white; background: radial-gradient(circle at 80% 18%, rgba(32,196,178,.34), transparent 30%), linear-gradient(145deg, #0f3d5c, #0b2d45); }
.auth-brand h1 { max-width: 580px; font-size: clamp(2.6rem, 6vw, 5rem); letter-spacing: -.055em; }
.auth-brand > p:last-child { max-width: 520px; color: #d6e7f1; font-size: 1.05rem; }
.auth-mark { width: 74px; height: 74px; margin-bottom: auto; display: block; border-radius: 22px; box-shadow: 0 12px 30px rgba(0,0,0,.2); }
.auth-card { align-self: center; padding: clamp(34px, 5vw, 64px); }
.auth-card h2 { font-size: clamp(2rem, 4vw, 3rem); }
.auth-help { margin: 12px 0 28px; color: var(--muted); }
.auth-form { display: grid; gap: 18px; }
.auth-form label { display: grid; gap: 7px; font-weight: 800; }
.auth-form input { min-height: 48px; }
.auth-form button { min-height: 50px; margin-top: 4px; }
.auth-message { margin: 18px 0 0; padding: 12px; border-radius: 10px; background: #fbe3de; color: #8b3128; font-weight: 700; }
.auth-card small { display: block; margin-top: 22px; color: var(--muted); }
@media (max-width: 760px) {
  .auth-page { padding: 0; }
  .auth-shell { min-height: 100vh; grid-template-columns: 1fr; border-radius: 0; }
  .auth-brand { min-height: 260px; padding: 30px; }
  .auth-brand h1 { font-size: 2.5rem; }
  .auth-mark { width: 56px; height: 56px; margin-bottom: 35px; border-radius: 16px; }
}