/* ================================================================
   ОБЩИЙ ДАШБОРД ИНФО-ЦЕНТР СФЕРА
   login.css — форма входа
   ================================================================ */

.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--pad);
  background:
    radial-gradient(ellipse at 30% 20%, var(--accent-glow) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 80%, var(--teal-glow) 0%, transparent 50%),
    var(--bg-deep);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(20px);
  animation: fadeIn 0.4s ease;
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo .icon {
  font-size: 48px;
  margin-bottom: 12px;
  display: block;
}

.login-logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.login-logo .subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.login-field {
  margin-bottom: 20px;
}

.login-field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.login-field input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.login-field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.login-field input::placeholder {
  color: var(--text-dim);
}

.login-error {
  background: var(--err-bg);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: var(--err);
  display: none;
}

.login-error.visible {
  display: block;
  animation: fadeIn 0.2s ease;
}

.login-btn {
  width: 100%;
  padding: 13px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
}

.login-btn:hover {
  background: #7c3aed;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.login-btn:active {
  transform: scale(0.98);
}

.login-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.login-btn .spinner {
  margin-right: 8px;
  border-top-color: #fff;
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 0.78rem;
  color: var(--text-muted);
}