*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

    :root {
      --bg-primary: #0f1419;
      --bg-secondary: #1a1f28;
      --bg-card: #242b36;
      --border: #2f3845;
      --accent: #a78bfa;
      --accent-hover: #8b5cf6;
      --text-primary: #f8fafc;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;
      --danger: #ef4444;
      --transition: 0.3s ease;
    }

    body {
      font-family: 'Inter', sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      min-height: 100vh;
      padding: 20px;
      line-height: 1.6;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
    }

    /* Header */
    header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 40px;
      flex-wrap: wrap;
      gap: 20px;
    }

    .header-left h1 {
      font-size: clamp(1.8rem, 4vw, 2.5rem);
      font-weight: 800;
      background: linear-gradient(135deg, var(--accent), #c4b5fd);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 4px;
    }

    .header-left p {
      color: var(--text-secondary);
      font-size: 0.95rem;
    }

    .header-right {
      display: flex;
      gap: 12px;
    }

    .btn {
      padding: 12px 24px;
      border: none;
      border-radius: 10px;
      font-size: 0.9rem;
      font-weight: 600;
      cursor: pointer;
      transition: all var(--transition);
      font-family: inherit;
    }

    .btn-primary {
      background: var(--accent);
      color: white;
    }

    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(167, 139, 250, 0.3);
    }

    .btn-secondary {
      background: var(--bg-card);
      color: var(--text-secondary);
      border: 1px solid var(--border);
    }

    .btn-secondary:hover {
      border-color: var(--accent);
      color: var(--text-primary);
    }

    /* Search Bar */
    .search-bar {
      margin-bottom: 30px;
    }

    .search-input {
      width: 100%;
      padding: 14px 20px 14px 48px;
      background: var(--bg-secondary);
      border: 2px solid var(--border);
      border-radius: 12px;
      color: var(--text-primary);
      font-size: 1rem;
      font-family: inherit;
      transition: all var(--transition);
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: 16px center;
    }

    .search-input:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 4px rgba(167, 139, 250, 0.1);
    }

    /* Notes Grid */
    .notes-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
      gap: 20px;
      margin-bottom: 30px;
    }

    .note-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 24px;
      transition: all var(--transition);
      cursor: pointer;
      display: flex;
      flex-direction: column;
      animation: fadeIn 0.3s ease;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: scale(0.95); }
      to { opacity: 1; transform: scale(1); }
    }

    .note-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    }

    .note-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 12px;
    }

    .note-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 8px;
      word-break: break-word;
    }

    .note-actions {
      display: flex;
      gap: 6px;
      opacity: 0;
      transition: opacity var(--transition);
    }

    .note-card:hover .note-actions {
      opacity: 1;
    }

    .action-btn {
      width: 32px;
      height: 32px;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      transition: all var(--transition);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9rem;
    }

    .edit-btn {
      background: rgba(167, 139, 250, 0.1);
      color: var(--accent);
    }

    .edit-btn:hover {
      background: var(--accent);
      color: white;
    }

    .delete-btn {
      background: rgba(239, 68, 68, 0.1);
      color: var(--danger);
    }

    .delete-btn:hover {
      background: var(--danger);
      color: white;
    }

    .note-content {
      font-size: 0.95rem;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 16px;
      display: -webkit-box;
      -webkit-line-clamp: 4;
      -webkit-box-orient: vertical;
      overflow: hidden;
      flex: 1;
    }

    .note-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 12px;
      border-top: 1px solid var(--border);
    }

    .note-date {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    .note-category {
      padding: 4px 12px;
      background: rgba(167, 139, 250, 0.15);
      color: var(--accent);
      border-radius: 20px;
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    /* Modal */
    .modal {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.8);
      backdrop-filter: blur(4px);
      z-index: 1000;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }

    .modal.active {
      display: flex;
      animation: modalFadeIn 0.3s ease;
    }

    @keyframes modalFadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }

    .modal-content {
      background: var(--bg-secondary);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 32px;
      width: 100%;
      max-width: 600px;
      max-height: 90vh;
      overflow-y: auto;
      animation: modalSlideUp 0.3s ease;
    }

    @keyframes modalSlideUp {
      from { transform: translateY(30px); opacity: 0; }
      to { transform: translateY(0); opacity: 1; }
    }

    .modal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
    }

    .modal-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--text-primary);
    }

    .close-btn {
      width: 36px;
      height: 36px;
      border: none;
      background: var(--bg-card);
      border-radius: 8px;
      color: var(--text-secondary);
      font-size: 1.2rem;
      cursor: pointer;
      transition: all var(--transition);
    }

    .close-btn:hover {
      background: var(--danger);
      color: white;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-secondary);
      margin-bottom: 8px;
    }

    .form-input {
      width: 100%;
      padding: 12px 16px;
      background: var(--bg-card);
      border: 2px solid var(--border);
      border-radius: 10px;
      color: var(--text-primary);
      font-size: 1rem;
      font-family: inherit;
      transition: all var(--transition);
    }

    .form-input:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 4px rgba(167, 139, 250, 0.1);
    }

    .form-textarea {
      min-height: 200px;
      resize: vertical;
      line-height: 1.6;
    }

    .form-select {
      cursor: pointer;
    }

    .modal-actions {
      display: flex;
      gap: 12px;
      justify-content: flex-end;
    }

    /* Empty State */
    .empty-state {
      text-align: center;
      padding: 80px 20px;
      color: var(--text-muted);
    }

    .empty-state .icon {
      font-size: 5rem;
      margin-bottom: 20px;
      opacity: 0.5;
    }

    .empty-state h3 {
      font-size: 1.5rem;
      margin-bottom: 8px;
      color: var(--text-secondary);
    }

    /* Responsive */
    @media (max-width: 768px) {
      header {
        flex-direction: column;
        align-items: flex-start;
      }

      .notes-grid {
        grid-template-columns: 1fr;
      }

      .modal-content {
        padding: 24px;
      }
    }