/* ─────────────────────────────── LOGIN ─── */
.login-container {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(150deg, #0a2d6e 0%, #1556C0 45%, #0d3f94 100%);
  position: relative; overflow: hidden;
}
.login-container::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(201,162,39,0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.05) 0%, transparent 40%);
}
.login-card {
  width: 100%; max-width: 420px; padding: 42px 40px;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 60px rgba(0,0,0,0.28);
  position: relative; z-index: 1;
  border-top: 5px solid var(--kmitl-red);
}
.login-logo {
  width: 76px; height: 76px; border-radius: 14px;
  background: var(--accent-gradient);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.2rem; margin: 0 auto 18px;
  box-shadow: var(--shadow-red);
}
.login-title   { text-align: center; font-family: 'Prompt', sans-serif; font-size: 1.3rem; font-weight: 700; margin-bottom: 3px; color: var(--kmitl-red); }
.login-subtitle { text-align: center; font-size: 0.82rem; color: var(--text-muted); margin-bottom: 28px; }
.login-error {
  padding: 10px 12px; border-radius: var(--radius-md);
  background: var(--color-problem-bg); border: 1px solid var(--color-problem-border);
  color: var(--color-problem); font-size: 0.82rem; margin-bottom: 14px;
  display: none;
}
.login-btn {
  width: 100%; padding: 12px; border-radius: var(--radius-md);
  background: var(--accent-gradient); color: white;
  font-family: 'Prompt', sans-serif;
  font-size: 0.95rem; font-weight: 700; border: none; cursor: pointer;
  transition: all 0.2s; box-shadow: var(--shadow-red);
}
.login-btn:hover { opacity: 0.9; transform: translateY(-1px); }
.login-hint {
  margin-top: 20px; padding: 12px;
  background: #f0f5ff; border: 1px solid var(--kmitl-red-border);
  border-radius: var(--radius-md); font-size: 0.80rem; color: var(--text-secondary);
  line-height: 1.7;
}