:root {
  --bg: #0f172a;
  --card-bg: #ffffff;
  --accent: #2563eb;
  --border-subtle: #e5e7eb;
  --text-main: #0f172a;
  --text-muted: #6b7280;
}

*,
*::before,
*::after { box-sizing: border-box; }

body.auth-body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-main);
  background: radial-gradient(circle at top left, #1d4ed8, #0f172a);
  min-height: 100vh;
}

.auth-main {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 420px) minmax(0, 1fr);
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 16px;
  gap: 32px;
  align-items: center;
}

.auth-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 24px 24px 28px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.35);
}

.auth-brand .brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  margin-bottom: 4px;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  margin-right: 8px;
}

.brand-text {
  font-weight: 700;
  color: var(--text-main);
}

.brand-sub {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.login-form { margin-top: 16px; }

.login-title {
  margin: 8px 0 16px;
  font-size: 1.4rem;
}

.field { display: block; margin-bottom: 14px; }

.field-label {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 4px;
  color: var(--text-muted);
}

.field input {
  width: 100%;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  font-size: 0.95rem;
}

.field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.3);
}

.login-meta {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 10px;
}

.link-muted {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
}

.link-muted:hover { text-decoration: underline; }

.btn-primary {
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-primary:hover { background: #1d4ed8; }

.login-footer {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.login-footer .link {
  color: var(--accent);
  text-decoration: none;
}

.login-footer .link:hover { text-decoration: underline; }

.alert {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.auth-aside {
  color: #e5e7eb;
  padding: 16px;
}

.auth-aside h2 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.auth-aside p {
  max-width: 280px;
  font-size: 0.9rem;
  color: #cbd5f5;
}

@media (max-width: 768px) {
  .auth-main {
    grid-template-columns: 1fr;
    padding-top: 40px;
  }
  .auth-aside { display: none; }
}