* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  background: #f3f4f6;
  color: #111111;
}

.view {
  display: none;
  min-height: 100vh;
}

.view.active {
  display: block;
}

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  padding: 35px;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.login-card h1 {
  margin-bottom: 10px;
  font-size: 32px;
  color: #111111;
}

.subtitle {
  color: #666666;
  margin-bottom: 25px;
}

.form {
  display: grid;
  gap: 16px;
}

.form-group {
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: #333333;
}

.form-group input,
.grid-form input,
.grid-form select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  background: #ffffff;
  outline: none;
  transition: 0.2s ease;
}

.form-group input:focus,
.grid-form input:focus,
.grid-form select:focus {
  border-color: #888888;
}

.message {
  margin-top: 14px;
  font-size: 14px;
  color: #cc0000;
}

.success-message {
  color: #0f7b35;
}

.error-message {
  color: #cc0000;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 12px 16px;
  cursor: pointer;
  font-size: 14px;
  transition: 0.2s ease;
}

.btn-primary {
  background: #4b5563;
  color: #ffffff;
}

.btn-primary:hover {
  background: #374151;
}

.btn-secondary {
  background: #e5e7eb;
  color: #111111;
}

.btn-secondary:hover {
  background: #d1d5db;
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: #1f2937;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  transition: 0.3s ease;
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-header h2 {
  font-size: 22px;
}

.menu {
  display: flex;
  flex-direction: column;
  padding: 15px;
  gap: 10px;
}

.menu-item {
  background: #374151;
  color: #ffffff;
  border: none;
  padding: 12px 14px;
  border-radius: 10px;
  text-align: left;
  cursor: pointer;
  transition: 0.2s ease;
}

.menu-item:hover,
.menu-item.active {
  background: #6b7280;
}

.sidebar-footer {
  margin-top: auto;
  padding: 20px;
}

.main {
  flex: 1;
  padding: 20px;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 15px;
  background: #ffffff;
  padding: 18px 20px;
  border-radius: 16px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  margin-bottom: 20px;
}

.topbar h3 {
  font-size: 24px;
}

.topbar p {
  color: #666666;
  margin-top: 4px;
}

.menu-toggle {
  display: none;
  border: none;
  background: #e5e7eb;
  color: #111111;
  font-size: 22px;
  width: 45px;
  height: 45px;
  border-radius: 10px;
  cursor: pointer;
}

.content {
  display: block;
}

.module {
  display: none;
}

.module.active {
  display: block;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 20px;
}

.card,
.panel-block {
  background: #ffffff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.card h4,
.panel-block h4 {
  margin-bottom: 12px;
  color: #111111;
}

.card p {
  font-size: 28px;
  font-weight: bold;
  color: #374151;
}

.grid-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.grid-form-small {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.list-box {
  display: grid;
  gap: 12px;
}

.list-item {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 14px;
}

.list-item strong {
  display: block;
  margin-bottom: 6px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.inline-actions {
  margin-top: 10px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hidden {
  display: none !important;
}

@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: -260px;
    top: 0;
    height: 100vh;
    z-index: 1000;
  }

  .sidebar.open {
    left: 0;
  }

  .menu-toggle {
    display: inline-block;
  }

  .main {
    width: 100%;
    padding: 14px;
  }

  .topbar h3 {
    font-size: 20px;
  }
}