/* ============================================================
   SE CONFIG EDITOR — Space Engineers HUD Theme
   ============================================================ */

   :root {
    --bg-base: #080c14;
    --bg-panel: #0d1117;
    --bg-card: #131a27;
    --bg-input: #0a1020;
    --bg-hover: #1a2744;
    --border-default: #1e2d4a;
    --border-glow: #00e5ff;
    --text-primary: #e0e6f0;
    --text-secondary: #7a8ba8;
    --accent-cyan: #00e5ff;
    --accent-cyan-dim: #0097a7;
    --accent-amber: #ff9800;
    --glow-cyan: 0 0 10px rgba(0, 229, 255, 0.3);
    --font-heading: 'Orbitron', monospace, sans-serif;
    --font-body: 'Share Tech Mono', monospace;
    --sidebar-width: 280px;
    --header-height: 70px;
  }
  
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  
  body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  /* Scrollbar */
  ::-webkit-scrollbar { width: 6px; }
  ::-webkit-scrollbar-track { background: var(--bg-base); }
  ::-webkit-scrollbar-thumb { background: var(--accent-cyan-dim); border-radius: 3px; }
  ::-webkit-scrollbar-thumb:hover { background: var(--accent-cyan); }
  
  /* Scanline */
  .scanline-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 9999;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0, 0, 0, 0.05) 2px, rgba(0, 0, 0, 0.05) 4px);
    opacity: 0.5;
  }
  
  /* Header */
  #header {
    height: var(--header-height);
    background-color: rgba(13, 17, 23, 0.9);
    border-bottom: 2px solid var(--border-default);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    z-index: 100;
  }
  
  /* Top Navigation */
  .top-nav {
    display: flex;
    background: #0d1117;
    border-bottom: 1px solid var(--border-default);
    padding: 0 20px;
    gap: 10px;
  }
  .top-nav-btn {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-bottom: 3px solid transparent;
    padding: 15px 20px;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
  }
  .top-nav-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
  }
  .top-nav-btn.active {
    color: var(--accent-cyan);
    border-bottom: 3px solid var(--accent-cyan);
    text-shadow: var(--glow-cyan);
  }

  /* Main View Handling */
  .main-view {
    display: none;
    flex: 1;
    overflow: hidden;
  }
  .main-view.active {
    display: flex;
  }
  
  .header-left { display: flex; align-items: center; gap: 15px; }
  .header-center { flex: 1; display: flex; justify-content: center; }
  .header-right { display: flex; align-items: center; gap: 15px; }
  
  .logo h1 { font-family: var(--font-heading); font-size: 1.2rem; color: var(--accent-cyan); text-shadow: var(--glow-cyan); letter-spacing: 2px; margin: 0; }
  .logo .version { font-size: 0.7rem; color: var(--text-secondary); text-shadow: none; vertical-align: top; }
  
  .server-info { font-family: var(--font-heading); font-size: 0.9rem; color: var(--text-secondary); }
  
  /* Action Bar (Import/Export) */
  .action-bar {
    display: flex;
    gap: 10px;
    background: rgba(0, 229, 255, 0.05);
    padding: 5px 15px;
    border: 1px solid var(--accent-cyan-dim);
    border-radius: 4px;
    box-shadow: inset 0 0 10px rgba(0,229,255,0.1);
  }
  
  /* Buttons */
  .btn {
    font-family: var(--font-heading); font-size: 0.8rem; letter-spacing: 1px;
    padding: 8px 16px; border: none; border-radius: 2px; cursor: pointer; text-transform: uppercase;
    display: inline-flex; align-items: center; gap: 8px; transition: all 0.2s;
  }
  .btn-primary { background-color: var(--accent-cyan-dim); color: #fff; box-shadow: 0 0 10px rgba(0,229,255,0.2); }
  .btn-primary:hover { background-color: var(--accent-cyan); box-shadow: var(--glow-cyan); }
  .btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
  
  .btn-secondary { background-color: transparent; color: var(--accent-cyan); border: 1px solid var(--accent-cyan-dim); }
  .btn-secondary:hover { background-color: rgba(0,229,255,0.1); box-shadow: inset 0 0 10px rgba(0,229,255,0.2); }
  
  .btn-text { background: transparent; border: none; color: var(--text-secondary); cursor: pointer; font-family: var(--font-body); text-decoration: underline; }
  .btn-text:hover { color: var(--text-primary); }
  
  #hamburger-btn { background: transparent; border: none; color: var(--accent-cyan); font-size: 1.5rem; cursor: pointer; display: none; }
  
  /* Layout */
  #app-container { display: flex; flex: 1; overflow: hidden; position: relative; }
  
  /* Sidebar */
  #sidebar {
    width: var(--sidebar-width); background-color: var(--bg-panel); border-right: 1px solid var(--border-default);
    display: flex; flex-direction: column; z-index: 50; transition: transform 0.3s;
  }
  
  .search-container { padding: 15px; position: relative; border-bottom: 1px solid var(--border-default); }
  #search-input {
    width: 100%; background: var(--bg-input); border: 1px solid var(--border-default); color: var(--text-primary);
    padding: 10px 10px 10px 35px; border-radius: 4px; font-family: var(--font-body); outline: none; transition: border-color 0.2s;
  }
  #search-input:focus { border-color: var(--accent-cyan); box-shadow: 0 0 5px rgba(0,229,255,0.2); }
  .search-icon { position: absolute; left: 25px; top: 25px; color: var(--text-secondary); pointer-events: none; }
  
  #nav-list { flex: 1; overflow-y: auto; padding: 10px 0; list-style: none; }
  .nav-item {
    display: flex; align-items: center; gap: 10px; padding: 12px 20px; cursor: pointer; color: var(--text-secondary);
    border-left: 3px solid transparent; transition: all 0.2s;
  }
  .nav-item:hover { background-color: var(--bg-hover); color: var(--text-primary); }
  .nav-item.active { background-color: var(--bg-card); color: var(--accent-cyan); border-left-color: var(--accent-cyan); box-shadow: inset 20px 0 20px -20px rgba(0,229,255,0.2); }
  
  .changes-tracker { padding: 15px; border-top: 1px solid var(--border-default); display: flex; flex-direction: column; gap: 10px; align-items: center; text-align: center; }
  .changes-tracker h4 { font-family: var(--font-heading); color: var(--text-secondary); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; }
  .badge { background: var(--bg-input); border: 1px solid var(--border-default); color: var(--text-primary); padding: 5px 15px; border-radius: 15px; font-weight: bold; font-family: var(--font-heading); }
  .badge.has-changes { border-color: var(--accent-amber); color: var(--accent-amber); box-shadow: 0 0 10px rgba(255, 152, 0, 0.2); }
  
  /* Main Content */
  #main-content { flex: 1; background: var(--bg-base); position: relative; overflow-y: auto; padding: 30px; }
  
  .category-panel { display: none; animation: fadeIn 0.3s; }
  .category-panel.active { display: block; }
  @keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
  
  .panel-header { margin-bottom: 25px; padding-bottom: 15px; border-bottom: 1px solid var(--border-default); }
  .panel-header h2 { font-family: var(--font-heading); color: var(--text-primary); font-size: 1.5rem; letter-spacing: 1px; margin-bottom: 5px; }
  .panel-header p { color: var(--text-secondary); }
  
  .settings-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 20px; }
  
  .setting-row { background: var(--bg-card); border: 1px solid var(--border-default); border-radius: 4px; padding: 20px; display: flex; flex-direction: column; gap: 15px; transition: border-color 0.2s; position: relative; }
  .setting-row:hover { border-color: #3a4b6e; }
  .setting-row.modified { border-color: var(--accent-amber); box-shadow: 0 0 10px rgba(255, 152, 0, 0.1); }
  .setting-row.hidden { display: none; }
  .setting-row.search-highlight { border-color: var(--accent-cyan); box-shadow: 0 0 10px rgba(0, 229, 255, 0.2); }
  
  .setting-info { flex: 1; }
  .setting-label { font-family: var(--font-heading); font-size: 0.9rem; color: var(--text-primary); display: block; margin-bottom: 5px; letter-spacing: 0.5px; }
  .setting-key { font-size: 0.7rem; color: var(--text-muted); display: block; margin-bottom: 5px; }
  .setting-desc { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.4; }
  
  .setting-control { display: flex; align-items: center; justify-content: flex-start; }
  
  /* --- CONTROLS --- */
  .drag-handle { user-select: none; }
  .active-mod-item.drag-over { border-top: 2px solid var(--accent-cyan); background: rgba(0, 229, 255, 0.05); }

  /* Toggle Switch */
  .toggle-switch { position: relative; display: inline-block; width: 50px; height: 24px; }
  .toggle-switch input { opacity: 0; width: 0; height: 0; }
  .toggle-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--bg-input); border: 1px solid var(--border-default); transition: .2s; }
  .toggle-slider:before { position: absolute; content: ""; height: 16px; width: 16px; left: 3px; bottom: 3px; background-color: var(--text-secondary); transition: .2s; }
  .toggle-switch input:checked + .toggle-slider { background-color: rgba(0, 229, 255, 0.1); border-color: var(--accent-cyan); }
  .toggle-switch input:checked + .toggle-slider:before { transform: translateX(26px); background-color: var(--accent-cyan); box-shadow: var(--glow-cyan); }
  
  /* Number Input */
  .number-input-group { display: flex; border: 1px solid var(--border-default); border-radius: 2px; overflow: hidden; width: 140px; }
  .num-btn { background: var(--bg-input); color: var(--accent-cyan); border: none; padding: 5px 10px; cursor: pointer; transition: background 0.2s; }
  .num-btn:hover { background: var(--bg-hover); }
  .num-input { flex: 1; width: 100%; background: var(--bg-base); color: var(--text-primary); border: none; border-left: 1px solid var(--border-default); border-right: 1px solid var(--border-default); text-align: center; font-family: var(--font-body); padding: 5px; outline: none; -moz-appearance: textfield; }
  .num-input::-webkit-outer-spin-button, .num-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
  .num-input:focus { background: var(--bg-hover); }
  
  /* Select */
  .select-input { width: 100%; background: var(--bg-input); color: var(--text-primary); border: 1px solid var(--border-default); padding: 8px 10px; font-family: var(--font-body); outline: none; cursor: pointer; border-radius: 2px; }
  .select-input:focus { border-color: var(--accent-cyan); box-shadow: inset 0 0 5px rgba(0,229,255,0.2); }
  
  /* Text Input */
  .text-input, .textarea-input { width: 100%; background: var(--bg-input); color: var(--text-primary); border: 1px solid var(--border-default); padding: 8px 10px; font-family: var(--font-body); outline: none; border-radius: 2px; }
  .text-input:focus, .textarea-input:focus { border-color: var(--accent-cyan); box-shadow: inset 0 0 5px rgba(0,229,255,0.2); }
  .textarea-input { resize: vertical; min-height: 60px; }
  
  /* Readonly */
  .readonly-value { display: block; background: rgba(0,0,0,0.2); padding: 6px 10px; border: 1px dashed var(--text-muted); color: var(--text-secondary); cursor: not-allowed; word-break: break-all; }
  
  /* Toasts */
  #toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
  .toast { padding: 15px 20px; background: var(--bg-panel); border-left: 4px solid var(--accent-cyan); color: var(--text-primary); box-shadow: 0 5px 15px rgba(0,0,0,0.5); font-family: var(--font-heading); display: flex; align-items: center; gap: 10px; animation: slideIn 0.3s forwards; }
  .toast.success { border-left-color: #4caf50; }
  .toast.error { border-left-color: #f44336; }
  .toast.fade-out { animation: fadeOut 0.3s forwards; }
  @keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
  @keyframes fadeOut { from { transform: translateX(0); opacity: 1; } to { transform: translateX(100%); opacity: 0; } }
  
  /* Loading */
  .loading { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(8, 12, 20, 0.9); display: flex; flex-direction: column; justify-content: center; align-items: center; z-index: 1000; font-family: var(--font-heading); letter-spacing: 2px; }
  .loading-spinner { width: 50px; height: 50px; border: 3px solid rgba(0, 229, 255, 0.1); border-top-color: var(--accent-cyan); border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 20px; }
  @keyframes spin { to { transform: rotate(360deg); } }
  .empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; color: var(--text-muted); font-family: var(--font-heading); }
  .empty-state-icon { font-size: 3rem; margin-bottom: 10px; }
  
  /* Modals */
  .modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .modal.glass-panel {
    background: rgba(13, 20, 36, 0.85);
    border: 1px solid var(--accent-cyan);
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.15), inset 0 0 20px rgba(0, 229, 255, 0.05);
    border-radius: 8px;
    padding: 30px;
    width: 100%;
    max-width: 450px;
    animation: modalPop 0.3s ease-out;
  }

  .modal.glass-panel h2 {
    text-align: center;
    font-family: var(--font-heading);
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-cyan) !important;
    margin-bottom: 25px !important;
    border-bottom: 1px solid rgba(0, 229, 255, 0.2);
    padding-bottom: 15px;
  }

  @keyframes modalPop {
    0% { transform: scale(0.9); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
  }

  /* Split Layout */
  .split-layout {
    display: flex;
    width: 100%;
    height: 100%;
    overflow: hidden;
  }
  .split-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px;
    overflow-y: auto;
  }
  .left-pane {
    border-right: 1px solid var(--border-default);
    background: var(--bg-panel);
  }
  .right-pane {
    background: var(--bg-base);
  }
  .search-bar-row {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
  }
  .mod-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
  }
  .mod-card {
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
  }
  .mod-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    transform: translateY(-2px);
  }
  .mod-card img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    background: #000;
  }
  .mod-card-body {
    padding: 10px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  .mod-card-title {
    font-size: 0.9rem;
    font-weight: bold;
    margin-bottom: 10px;
    color: var(--text-primary);
  }
  
  .plugin-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
  }
  
  .plugin-card {
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    flex-direction: row;
    align-items: stretch;
    transition: all 0.2s;
    max-height: 200px;
  }
  .plugin-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
  }
  .plugin-card-body {
    padding: 15px;
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
  }
  .plugin-card-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
    white-space: pre-wrap;
    word-break: break-word;
    margin-bottom: 10px;
  }
  .plugin-card-footer {
    padding: 15px;
    border-left: 1px solid var(--border-default);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 150px;
  }
  
  .active-mods-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .active-mod-item {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-default);
    padding: 10px;
    border-radius: 4px;
    gap: 15px;
  }
  .active-mod-item.drag-over {
    border-color: var(--accent-cyan);
  }
  .active-mod-title {
    flex: 1;
    font-weight: bold;
  }
  .active-mod-id {
    color: var(--text-secondary);
    font-size: 0.8rem;
  }
  .mod-actions {
    display: flex;
    gap: 5px;
  }
  .mod-action-btn {
    background: var(--bg-input);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    padding: 5px 8px;
    border-radius: 3px;
    cursor: pointer;
    transition: 0.2s;
  }
  .mod-action-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent-cyan);
  }
  .mod-action-btn.danger:hover {
    border-color: #f44336;
    color: #f44336;
  }
    display: none;
    align-items: center;
    justify-content: center;
  }
  .modal.glass-panel {
    background: rgba(13, 17, 23, 0.95);
    border: 1px solid var(--border-default);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
    padding: 30px;
    border-radius: 4px;
    width: 400px;
    max-width: 90%;
  }

  .amp-badge {
    display: inline-block;
    margin-top: 6px;
    padding: 2px 8px;
    background: rgba(0, 229, 255, 0.15);
    border: 1px solid rgba(0, 229, 255, 0.3);
    color: var(--accent-cyan);
    font-size: 0.75rem;
    border-radius: 4px;
    font-family: var(--font-heading);
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  .amp-badge .icon { margin-right: 4px; }