/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Inter", sans-serif;
    background: #07090f;
    color: #f5f5f5;
    min-height: 100vh;
  }
  
  .hidden {
    display: none !important;
  }
  
  /* ===========================================
     AUTH SECTION
  =========================================== */
  
  .auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
  }
  
  .auth-card {
    background: rgba(255, 255, 255, 0.06);
    padding: 2rem;
    border-radius: 1rem;
    width: 360px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
  }
  
  .auth-card h1 {
    font-size: 1.8rem;
    margin-bottom: 0.2rem;
    text-align: center;
  }
  
  .subtitle {
    font-size: 0.9rem;
    opacity: 0.75;
    text-align: center;
    margin-bottom: 1rem;
  }
  
  .auth-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
  }
  
  .auth-tab {
    flex: 1;
    padding: 0.5rem;
    border-radius: 0.6rem;
    background: rgba(255, 255, 255, 0.12);
    border: none;
    color: #ddd;
    cursor: pointer;
  }
  
  .auth-tab.active {
    background: #3e4bff;
    color: #fff;
  }
  
  .field {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
  }
  
  .field label {
    font-size: 0.85rem;
    opacity: 0.85;
  }
  
  .field input,
  .field select {
    padding: 0.6rem;
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
  }
  
  .primary-btn {
    width: 100%;
    padding: 0.7rem;
    background: #4c5fff;
    border: none;
    border-radius: 0.6rem;
    cursor: pointer;
    color: #fff;
    margin-top: 0.5rem;
    transition: 0.2s;
  }
  
  .primary-btn:hover {
    filter: brightness(1.15);
  }
  
  .secondary-btn {
    padding: 0.6rem;
    width: 100%;
    background: rgba(255, 255, 255, 0.12);
    border: none;
    color: #fff;
    border-radius: 0.6rem;
    cursor: pointer;
  }
  
  .error-text {
    color: #ff6b6b;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    min-height: 1rem;
  }
  
  .success-text {
    color: #53ff8a;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    min-height: 1rem;
  }
  
  /* ===========================================
     DASHBOARD LAYOUT
  =========================================== */
  
  .dashboard {
    display: flex;
    min-height: 100vh;
  }
  
  .sidebar {
    width: 250px;
    background: #0b0d16;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  .logo span {
    font-size: 1.6rem;
    font-weight: 700;
  }
  
  .logo small {
    font-size: 0.85rem;
    opacity: 0.75;
  }
  
  .nav {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
  }
  
  .nav-btn {
    background: transparent;
    border: none;
    color: #d8d8d8;
    text-align: left;
    padding: 0.6rem;
    border-radius: 0.6rem;
    cursor: pointer;
    transition: 0.2s;
  }
  
  .nav-btn.active,
  .nav-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
  }
  
  .logout-btn {
    margin-top: auto;
  }
  
  /* ===========================================
     MAIN CONTENT
  =========================================== */
  
  .main {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
  }
  
  .topbar h1 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
  }
  
  .section {
    display: none;
  }
  
  .section.active {
    display: block;
  }
  
  .cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
  }
  
  .card {
    background: rgba(255, 255, 255, 0.07);
    border-radius: 0.8rem;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  .card-number {
    font-size: 2rem;
    margin-top: 0.4rem;
  }
  
  .card-number-small {
    font-size: 1.2rem;
    margin-top: 0.4rem;
    opacity: 0.9;
  }
  
  .user-info {
    margin-top: 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.5rem 1rem;
  }
  
  .admin-code-box {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 0.8rem;
    background: rgba(255, 255, 255, 0.07);
    border: 1px dashed rgba(255, 255, 255, 0.3);
  }
  
  .code-display {
    font-family: monospace;
    font-size: 1.3rem;
    margin: 0.4rem 0;
  }
  
  /* ===========================================
     TABLES
  =========================================== */
  
  .table-wrapper {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
    overflow-x: auto;
  }
  
  table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
  }
  
  th, td {
    padding: 0.6rem;
    text-align: left;
  }
  
  th {
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  }
  
  tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.04);
  }
  
  /* ===========================================
     ADMIN PANELS
  =========================================== */
  
  .admin-grid {
    margin-top: 1.2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
  }
  
  .admin-card {
    background: rgba(255, 255, 255, 0.07);
    padding: 1rem;
    border-radius: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  .small-msg {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    min-height: 1rem;
    opacity: 0.88;
  }
  
  /* DROPDOWN MULTISELECT */
  select[multiple] {
    height: 120px;
  }
  
  /* ===========================================
     RESPONSIVE
  =========================================== */
  
  @media (max-width: 900px) {
    .sidebar {
      display: none;
    }
    .main {
      padding: 1.2rem;
    }
  }

  .admin-lists {
    margin-top: 2rem;
    display: grid;
    gap: 2rem;
  }
  
  .admin-list-card {
    background: rgba(255, 255, 255, 0.06);
    padding: 1rem;
    border-radius: .7rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .admin-list-card h3 {
    margin-bottom: .8rem;
  }
  
  .admin-edit-btn {
    background: #4c5fff;
    border: none;
    color: #fff;
    padding: .3rem .6rem;
    border-radius: .4rem;
    cursor: pointer;
    font-size: .8rem;
  }
  
  .admin-edit-btn:hover {
    filter: brightness(1.2);
  }

  .subtext {
    opacity: 0.7;
    margin-bottom: 1rem;
  }

  .total-box {
    padding: 1rem;
    background: rgba(255,255,255,0.07);
    border-radius: .7rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255,255,255,0.1);
  }
  
  .total-number {
    font-size: 1.6rem;
    margin-top: .4rem;
    color: #4cff7c;
    font-weight: 600;
  }