/* ─── Fonts ────────────────────────────────────────────────────────────── */
@font-face {
  font-family: 'Inter';
  src: url('/fonts/Inter-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('/fonts/Inter-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* ─── Design Tokens ─────────────────────────────────────────────────────── */
:root {
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Roboto Mono', monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.2s cubic-bezier(.4,0,.2,1);
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --accent-pink: #ec4899;
  --accent-purple: #8b5cf6;
}

/* Base Theme (Matte Flat Dark - Default) */
html, html[data-theme="glass"] {
  --bg-primary: #111215;
  --bg-secondary: #16171b;
  --bg-tertiary: #1e2025;
  --bg-card: #16171b;
  --bg-card-hover: #1c1d22;
  --bg-input: #121316;
  --bg-navbar: #111215;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.35);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.4);
}

/* Industrial Theme */
html[data-theme="industrial"] {
  --font: var(--font-mono);
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #141414;
  --bg-card: #111111;
  --bg-card-hover: #1a1a1a;
  --bg-input: #111111;
  --bg-navbar: rgba(0,0,0,0.95);
  --border: #333333;
  --border-hover: #555555;
  --text-primary: #ffffff;
  --text-secondary: #aaaaaa;
  --text-muted: #666666;
  --shadow-sm: 0 2px 4px rgba(0,0,0,1);
  --shadow-md: 0 4px 8px rgba(0,0,0,1);
  --shadow-lg: 0 8px 16px rgba(0,0,0,1);
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-xl: 8px;
}

html[data-theme="industrial"] .glass-panel,
html[data-theme="industrial"] .navbar,
html[data-theme="industrial"] .dropdown-content,
html[data-theme="industrial"] .bulk-action-bar {
  backdrop-filter: none !important;
}

/* Light Theme */
html[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-input: #ffffff;
  --bg-navbar: rgba(255, 255, 255, 0.92);
  --border: #e2e8f0;
  --border-hover: #cbd5e1;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

html[data-theme="light"] .glass-panel {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

html[data-theme="light"] .navbar {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: #e2e8f0;
}

html[data-theme="light"] .modal {
  background: #ffffff;
  border-color: #e2e8f0;
  color: #0f172a;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

html[data-theme="light"] .modal-header {
  border-bottom-color: #e2e8f0;
}

html[data-theme="light"] .form-input,
html[data-theme="light"] .form-select,
html[data-theme="light"] .form-textarea {
  background: #ffffff;
  color: #0f172a;
  border-color: #cbd5e1;
}

html[data-theme="light"] .form-input:focus,
html[data-theme="light"] .form-select:focus,
html[data-theme="light"] .form-textarea:focus {
  background: #ffffff;
  border-color: var(--accent-cyan);
}

html[data-theme="light"] .model-card {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

html[data-theme="light"] .model-card:hover {
  background: #ffffff;
  border-color: var(--accent-cyan);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

html[data-theme="light"] .stat-card {
  background: #ffffff;
  border-color: #e2e8f0;
}

html[data-theme="light"] .dropdown-content {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

html[data-theme="light"] .dropdown-content a {
  color: #334155;
}

html[data-theme="light"] .dropdown-content a:hover {
  background: #f1f5f9;
}

html[data-theme="light"] .tag-pill {
  background: #f1f5f9;
  border-color: #e2e8f0;
  color: #334155;
}

html[data-theme="light"] .file-item {
  background: #f8fafc;
  border-color: #e2e8f0;
}

html[data-theme="light"] .file-item:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

html[data-theme="light"] .btn-secondary {
  background: #f1f5f9;
  color: #1e293b;
  border-color: #cbd5e1;
}

html[data-theme="light"] .btn-secondary:hover {
  background: #e2e8f0;
}

html[data-theme="light"] .btn-ghost {
  color: #475569;
}

html[data-theme="light"] .btn-ghost:hover {
  background: #f1f5f9;
  color: #0f172a;
}

html[data-theme="light"] .app-footer {
  background: #ffffff;
  border-top-color: #e2e8f0;
  color: #64748b;
}

/* ─── Flat Studio Accent Colors (6 Options) ─────────────────────────── */
/* 1. Studio Blue (Default) */
html, html[data-accent="blue"], html[data-accent="cyan"] {
  --accent-cyan: #3b82f6;
  --border-focus: rgba(59, 130, 246, 0.4);
  --shadow-glow: none;
  --accent-gradient: #2563eb;
}

/* 2. Emerald Green */
html[data-accent="emerald"], html[data-accent="green"] {
  --accent-cyan: #10b981;
  --border-focus: rgba(16, 185, 129, 0.4);
  --shadow-glow: none;
  --accent-gradient: #059669;
}

/* 3. Amber Gold */
html[data-accent="amber"], html[data-accent="orange"] {
  --accent-cyan: #f59e0b;
  --border-focus: rgba(245, 158, 11, 0.4);
  --shadow-glow: none;
  --accent-gradient: #d97706;
}

/* 4. Coral Rose */
html[data-accent="rose"], html[data-accent="red"] {
  --accent-cyan: #f43f5e;
  --border-focus: rgba(244, 63, 94, 0.4);
  --shadow-glow: none;
  --accent-gradient: #e11d48;
}

/* 5. Studio Violet */
html[data-accent="violet"], html[data-accent="purple"] {
  --accent-cyan: #8b5cf6;
  --border-focus: rgba(139, 92, 246, 0.4);
  --shadow-glow: none;
  --accent-gradient: #7c3aed;
}

/* 6. Teal Sage */
html[data-accent="teal"] {
  --accent-cyan: #14b8a6;
  --border-focus: rgba(20, 184, 166, 0.4);
  --shadow-glow: none;
  --accent-gradient: #0d9488;
}

.accent-color-btn{width:32px;height:32px;border-radius:50%;border:2px solid var(--bg-card);outline-offset:2px;cursor:pointer;transition:transform .15s ease}
.accent-color-btn:hover{transform:scale(1.1)}

/* ─── Reset ─────────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--accent-cyan);text-decoration:none;transition:color var(--transition)}
a:hover{color:#60a5fa}
img{max-width:100%;display:block}
button{cursor:pointer;font-family:var(--font)}
input,select,textarea{font-family:var(--font)}

/* ─── App Layout (Collapsible Left Sidebar + Main Content) ───────────────── */
.app-layout{display:flex;min-height:100vh;width:100%;position:relative}

/* ─── Sidebar ───────────────────────────────────────────────────────────── */
.sidebar{width:240px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:120;transition:width var(--transition),transform var(--transition);overflow:hidden;user-select:none}
.sidebar-header{height:66px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);flex-shrink:0}
.sidebar-brand{display:flex;align-items:center;gap:12px;text-decoration:none;overflow:hidden;white-space:nowrap}
.sidebar-brand .nav-logo{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:8px;background:transparent;color:var(--text-primary);border:none;flex-shrink:0}
.sidebar-brand .nav-title{font-size:1.05rem;font-weight:700;color:var(--text-primary);letter-spacing:-0.01em;transition:opacity var(--transition)}

.sidebar-collapse-btn{background:transparent;border:none;color:var(--text-muted);padding:6px;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all var(--transition)}
.sidebar-collapse-btn:hover{color:var(--text-primary);background:var(--bg-card-hover)}

.sidebar-content{flex:1;overflow-y:auto;overflow-x:hidden;padding:14px 10px;display:flex;flex-direction:column;gap:16px}
.sidebar-content::-webkit-scrollbar{width:4px}
.sidebar-content::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.08);border-radius:4px}

.sidebar-section-title{font-size:0.65rem;font-weight:700;letter-spacing:0.08em;color:var(--text-muted);padding:0 10px;margin-bottom:6px;text-transform:uppercase;white-space:nowrap;transition:opacity var(--transition)}

.sidebar-nav-group{display:flex;flex-direction:column;gap:2px}
.sidebar-nav-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:6px;color:var(--text-secondary);font-size:0.85rem;font-weight:500;text-decoration:none;transition:all var(--transition);white-space:nowrap}
.sidebar-nav-item:hover{color:var(--text-primary);background:var(--bg-card-hover)}
.sidebar-nav-item.active{color:#ffffff;background:rgba(255,255,255,0.08);font-weight:600}
.sidebar-nav-item svg{flex-shrink:0;opacity:0.85}
.sidebar-nav-item.active svg{opacity:1}

.sidebar-sub-list{display:flex;flex-direction:column;gap:2px}
.sidebar-sub-item{display:flex;align-items:center;gap:8px;padding:6px 12px 6px 16px;border-radius:6px;color:var(--text-muted);font-size:0.8rem;text-decoration:none;transition:all var(--transition);white-space:nowrap}
.sidebar-sub-item:hover{color:var(--text-primary);background:var(--bg-card-hover)}
.sidebar-sub-item.active{color:#ffffff;background:rgba(255,255,255,0.06);font-weight:600}
.sidebar-sub-item .dot{width:6px;height:6px;border-radius:50%;flex-shrink:0}

/* Sidebar Footer & 3D Printers */
.sidebar-footer{border-top:1px solid var(--border);padding:10px;display:flex;flex-direction:column;gap:8px;background:var(--bg-secondary);flex-shrink:0}
.sidebar-printers-section{display:flex;flex-direction:column;gap:6px}
.sidebar-printer-card{background:var(--bg-card);border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-size:0.75rem;transition:all var(--transition)}
.sidebar-printer-card:hover{border-color:var(--border-hover)}
.sidebar-printer-header{display:flex;align-items:center;justify-content:space-between;font-weight:600;color:var(--text-primary);margin-bottom:2px}
.sidebar-printer-temps{display:flex;gap:10px;font-size:0.7rem;color:var(--text-secondary)}

.sidebar-user-card{display:flex;align-items:center;justify-content:space-between;padding:6px 8px;border-radius:6px;background:var(--bg-card);border:1px solid var(--border)}
.sidebar-user-profile{display:flex;align-items:center;gap:8px;cursor:pointer;flex:1;min-width:0}
.sidebar-avatar{width:26px;height:26px;border-radius:50%;background:var(--bg-tertiary);border:1px solid var(--border);color:var(--text-primary);display:flex;align-items:center;justify-content:center;font-size:0.75rem;font-weight:600;flex-shrink:0}
.sidebar-user-meta{min-width:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-username{font-size:0.8rem;font-weight:600;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis}
.sidebar-user-role{font-size:0.65rem;color:var(--text-muted);text-transform:capitalize}
.sidebar-actions{display:flex;gap:2px}
.btn-icon{background:none;border:none;color:var(--text-secondary);padding:6px;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all var(--transition)}
.btn-icon:hover{color:var(--text-primary);background:var(--bg-card-hover)}

/* ─── Collapsed Sidebar Mode (Icon-Rail, 64px) ─────────────────────────── */
.sidebar.collapsed{width:64px}
.sidebar.collapsed .nav-title,
.sidebar.collapsed .sidebar-section-title,
.sidebar.collapsed .sidebar-nav-item span,
.sidebar.collapsed .sidebar-sub-item span,
.sidebar.collapsed .sidebar-user-meta,
.sidebar.collapsed .sidebar-printer-card .sidebar-printer-temps,
.sidebar.collapsed .sidebar-printer-header span:not(.status-dot) {
  display:none !important;
}
.sidebar.collapsed .sidebar-header{justify-content:center;padding:0}
.sidebar.collapsed .sidebar-brand{display:none}
.sidebar.collapsed .sidebar-nav-item{justify-content:center;padding:10px 0}
.sidebar.collapsed .sidebar-sub-item{justify-content:center;padding:8px 0}
.sidebar.collapsed .sidebar-user-card{justify-content:center;padding:4px 0}
.sidebar.collapsed .sidebar-user-card .sidebar-actions{display:none}
.sidebar.collapsed .sidebar-printer-card{padding:6px 0;display:flex;justify-content:center}

/* ─── Main Content Wrapper ──────────────────────────────────────────────── */
.app-main-wrapper{flex:1;margin-left:240px;display:flex;flex-direction:column;min-width:0;min-height:100vh;transition:margin-left var(--transition)}
.sidebar-collapsed .app-main-wrapper{margin-left:64px}

/* ─── Topbar ────────────────────────────────────────────────────────────── */
.app-topbar{height:56px;background:var(--bg-navbar);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:90}
.mobile-menu-btn{display:none;background:none;border:none;color:var(--text-secondary);padding:6px;border-radius:6px;align-items:center;justify-content:center}

.topbar-search-wrapper{display:flex;align-items:center;gap:10px;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;padding:0 12px;height:36px;width:380px;max-width:100%;transition:all var(--transition);cursor:text}
.topbar-search-wrapper:focus-within{border-color:var(--border-focus);background:var(--bg-card);width:460px}
.topbar-search-wrapper svg{color:var(--text-muted);flex-shrink:0}
.topbar-search-wrapper input{background:none;border:none;outline:none;color:var(--text-primary);font-size:0.8125rem;width:100%}
.topbar-search-wrapper input::placeholder{color:var(--text-muted);font-size:0.8125rem}
.search-shortcut{font-size:0.65rem;font-weight:500;font-family:var(--font-mono);color:var(--text-muted);background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);padding:2px 5px;border-radius:4px;white-space:nowrap;line-height:1;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}

.topbar-actions{display:flex;align-items:center;gap:12px}

/* ─── Main Content Area ─────────────────────────────────────────────────── */
.main-content{padding:28px;flex:1;animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}

/* ─── Mobile Sidebar Overlay ────────────────────────────────────────────── */
.sidebar-backdrop{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.6);backdrop-filter:blur(3px);z-index:115}
@media(max-width: 900px){
  .sidebar{transform:translateX(-100%);width:260px !important}
  .sidebar.mobile-open{transform:translateX(0);box-shadow:0 0 30px rgba(0,0,0,0.8)}
  .sidebar-backdrop.active{display:block}
  .app-main-wrapper{margin-left:0 !important}
  .mobile-menu-btn{display:flex}
  .topbar-search-wrapper{width:260px}
  .topbar-search-wrapper:focus-within{width:300px}
  .sidebar-collapse-btn{display:none}
}

/* ─── Buttons ───────────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:none;border-radius:6px;font-size:.875rem;font-weight:500;transition:all var(--transition);line-height:1}
.btn-sm{padding:6px 12px;font-size:.8125rem}
.btn-xs{padding:4px 8px;font-size:.75rem;border-radius:4px}
.btn-primary{background:#2563eb;color:#fff;border:1px solid rgba(255,255,255,0.1);box-shadow:none}
.btn-primary:hover{background:#1d4ed8;transform:none;filter:none}
.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--border-hover)}
.btn-ghost{background:transparent;color:var(--text-secondary);padding:6px 8px;border-radius:6px}
.btn-ghost:hover{color:var(--text-primary);background:var(--bg-card-hover)}
.btn-danger{background:rgba(239,68,68,0.1);color:#f87171;border:1px solid rgba(239,68,68,0.2)}
.btn-danger:hover{background:rgba(239,68,68,0.2)}
.btn-success{background:rgba(16,185,129,0.1);color:#34d399;border:1px solid rgba(16,185,129,0.2)}
.btn-success:hover{background:rgba(16,185,129,0.2)}
.btn-kofi{background:#f59e0b;color:#111827!important;font-weight:700;border:1px solid #f59e0b;box-shadow:0 2px 8px rgba(245,158,11,0.28);transition:all .2s cubic-bezier(0.16,1,0.3,1);display:inline-flex;align-items:center;gap:7px;text-decoration:none;cursor:pointer}
.btn-kofi:hover{background:#fbbf24;border-color:#fbbf24;color:#000!important;transform:translateY(-2px);box-shadow:0 6px 18px rgba(245,158,11,0.45)}
.btn-kofi:active{transform:translateY(0);box-shadow:0 2px 6px rgba(245,158,11,0.3)}

/* ─── Page Header ───────────────────────────────────────────────────────── */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;flex-wrap:wrap;gap:16px}
.page-title{font-size:1.75rem;font-weight:800;letter-spacing:-0.03em}
.page-subtitle{color:var(--text-secondary);font-size:.9rem;margin-top:2px}

/* ─── Stats Grid ────────────────────────────────────────────────────────── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:32px}
.filter-select{background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:0 12px;font-size:.85rem;height:36px;cursor:pointer;outline:none;transition:border-color var(--transition);min-width:140px}
.filter-select:focus{border-color:var(--accent-cyan)}

/* ─── Dropdown ────────────────────────────────────────────────────────── */
.dropdown{position:relative;display:inline-block}
.dropdown-content{display:none;position:absolute;right:0;background:var(--bg-card);min-width:180px;box-shadow:0 10px 25px rgba(0,0,0,0.5);border:1px solid var(--border);border-radius:var(--radius-md);z-index:100;backdrop-filter:blur(10px);overflow:hidden}
.dropdown:hover .dropdown-content{display:block}
.dropdown-content a{color:var(--text-secondary);padding:10px 16px;text-decoration:none;display:block;font-size:.85rem;transition:background .2s}
.dropdown-content a:hover{background:var(--bg-card-hover);color:var(--accent-cyan)}
.dropdown-header{padding:8px 16px;font-size:.65rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);border-bottom:1px solid var(--border);background:var(--bg-tertiary);opacity:.8}

.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;position:relative;overflow:hidden;transition:border-color var(--transition)}
.stat-card:hover{border-color:var(--border-hover)}
.stat-card::before{display:none}
.stat-icon{width:36px;height:36px;border-radius:6px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;font-size:1.1rem}
.stat-icon.cyan{background:rgba(59,130,246,0.1);color:#60a5fa}
.stat-icon.purple{background:rgba(129,140,248,0.1);color:#a78bfa}
.stat-icon.green{background:rgba(16,185,129,0.1);color:#34d399}
.stat-icon.pink{background:rgba(244,114,182,0.1);color:#f472b6}
.stat-value{font-size:1.75rem;font-weight:700;letter-spacing:-0.02em;line-height:1;color:var(--text-primary)}
.stat-label{color:var(--text-secondary);font-size:.8rem;margin-top:4px;font-weight:500}

/* ─── Breadcrumbs ───────────────────────────────────────────────────────── */
.breadcrumbs{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;background:var(--bg-card);border:1px solid var(--border);border-radius:6px;font-size:.8rem;margin-bottom:16px}
.breadcrumbs a{color:var(--text-secondary);transition:color var(--transition);display:flex;align-items:center;gap:4px}
.breadcrumbs a:hover{color:var(--text-primary)}
.breadcrumbs span{color:var(--text-muted);opacity:.5}
.breadcrumbs .current{color:var(--text-primary);font-weight:600}

/* ─── Card / Glass Panel ───────────────────────────────────────────────── */
.glass-panel{position:relative;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}
.glass-panel:hover{z-index:10}
.panel-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}
.panel-title{font-size:.95rem;font-weight:600;display:flex;align-items:center;gap:8px;color:var(--text-primary)}
.panel-body{padding:20px}
.panel-body.no-pad{padding:0}

/* ─── Model Grid ────────────────────────────────────────────────────────── */
.model-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.model-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;transition:border-color .15s ease;cursor:pointer;position:relative}
.model-card:hover{border-color:var(--border-hover)}
.model-card.selected{border-color:var(--accent-cyan);box-shadow:0 0 0 1px var(--accent-cyan)}

.model-card-checkbox{position:absolute;top:10px;left:10px;z-index:20;width:20px;height:20px;border-radius:4px;background:rgba(0,0,0,0.6);border:1.5px solid rgba(255,255,255,0.4);display:flex;align-items:center;justify-content:center;color:#fff;opacity:0;transition:all .2s;pointer-events:none}
.model-card:hover .model-card-checkbox, .model-card.selected .model-card-checkbox{opacity:1;pointer-events:auto}
.model-card.selected .model-card-checkbox{background:var(--accent-cyan);border-color:var(--accent-cyan)}
.model-card.selected .model-card-checkbox::after{content:'✓';font-size:12px;font-weight:bold}
.model-card-thumb{height:180px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;background:#111215}
.model-card-thumb img{width:100%;height:100%;object-fit:cover}
.model-card-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:2.5rem;opacity:.35}
.model-card-badges{position:absolute;top:8px;right:8px;display:flex;gap:4px;flex-wrap:wrap;z-index:10}

/* Card Hover Quick Actions */
.model-card-hover-actions{position:absolute;bottom:10px;left:50%;transform:translateX(-50%) translateY(4px);display:inline-flex;align-items:center;gap:3px;z-index:15;opacity:0;background:rgba(14,14,22,0.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,0.12);border-radius:24px;padding:3px 6px;box-shadow:0 4px 16px rgba(0,0,0,0.45);transition:all .2s cubic-bezier(0.16,1,0.3,1);pointer-events:none}
.model-card:hover .model-card-hover-actions, .collection-card:hover .model-card-hover-actions{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto}
.card-hover-btn{background:none;border:none;color:var(--text-secondary);border-radius:50%;width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;transition:all .15s ease;cursor:pointer;padding:0;line-height:1}
.card-hover-btn:hover{color:var(--text-primary);background:rgba(255,255,255,0.14);transform:scale(1.1)}

.model-card-body{padding:14px}
.model-card-name{font-size:.925rem;font-weight:600;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-primary)}
.model-card-meta{display:flex;align-items:center;gap:10px;font-size:.75rem;color:var(--text-secondary)}
.model-card-footer{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-top:1px solid var(--border)}

/* Format Filter Pills */
.format-pill{background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);padding:4px 10px;border-radius:6px;font-size:.75rem;font-weight:500;cursor:pointer;transition:all .15s ease}
.format-pill:hover{background:var(--bg-card-hover);color:var(--text-primary);border-color:var(--border-hover)}
.format-pill.active{background:rgba(255,255,255,0.08);color:#ffffff;border-color:rgba(255,255,255,0.18);font-weight:600}

/* ─── Badges ────────────────────────────────────────────────────────────── */
.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 7px;border-radius:4px;font-size:.6875rem;font-weight:500;text-transform:uppercase;letter-spacing:.02em}
.badge-stl{background:rgba(59,130,246,0.1);color:#93c5fd;border:1px solid rgba(59,130,246,0.2)}
.badge-gcode{background:rgba(16,185,129,0.1);color:#6ee7b7;border:1px solid rgba(16,185,129,0.2)}
.badge-3mf{background:rgba(139,92,246,0.1);color:#c4b5fd;border:1px solid rgba(139,92,246,0.2)}
.badge-obj{background:rgba(245,158,11,0.1);color:#fcd34d;border:1px solid rgba(245,158,11,0.2)}
.badge-step{background:rgba(244,114,182,0.1);color:#f472b6;border:1px solid rgba(244,114,182,0.2)}
.badge-zip{background:rgba(234,179,8,0.1);color:#fde047;border:1px solid rgba(234,179,8,0.2)}
.badge-image{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border)}
.badge-other{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border)}
.badge-printed{background:rgba(16,185,129,0.08);color:#34d399;border:1px solid rgba(16,185,129,0.2)}
.badge-not-printed{background:var(--bg-tertiary);color:var(--text-muted);border:1px solid var(--border)}
.badge-category{padding:2px 8px;border-radius:4px;font-size:.6875rem;font-weight:500}
.badge-tag{background:rgba(255,255,255,0.04);color:var(--text-secondary);border:1px solid var(--border);padding:2px 8px;border-radius:4px;font-size:.7rem;font-weight:500}
.file-icon.zip{background:rgba(234,179,8,0.1);color:#fde047}

/* ─── Forms ─────────────────────────────────────────────────────────────── */
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:.8125rem;font-weight:500;color:var(--text-secondary);margin-bottom:6px}
.form-input,.form-select,.form-textarea{width:100%;padding:8px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);font-size:.875rem;transition:border-color var(--transition);outline:none}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--border-focus)}
.form-textarea{min-height:60px;resize:vertical}
.form-select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}
.form-select option{background:var(--bg-secondary);color:var(--text-primary)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}
.form-checkbox{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:.875rem}
.form-checkbox input[type="checkbox"]{width:16px;height:16px;accent-color:var(--accent-cyan);cursor:pointer}

/* ─── Search & Filters ──────────────────────────────────────────────────── */
.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:20px;flex-wrap:wrap}
.search-box{flex:1;min-width:200px;position:relative;display:flex;align-items:center}
.search-box input{width:100%;height:34px;padding:0 12px 0 32px;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);font-size:.8125rem;outline:none;transition:border-color var(--transition), background var(--transition)}
.search-box input:focus{border-color:var(--border-focus);background:var(--bg-card)}
.search-box input::placeholder{color:var(--text-muted);font-size:.8125rem}
.search-box svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--text-muted);pointer-events:none}
.filter-select{height:34px;padding:0 28px 0 10px;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text-secondary);font-size:.8125rem;font-weight:500;outline:none;appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;box-sizing:border-box;transition:border-color var(--transition), color var(--transition)}
.filter-select:hover{color:var(--text-primary);border-color:var(--border-hover)}
.filter-select:focus{border-color:var(--border-focus);color:var(--text-primary)}
.filter-select option{background:var(--bg-card);color:var(--text-primary)}
select option{background:var(--bg-card);color:var(--text-primary)}

/* ─── File Upload ───────────────────────────────────────────────────────── */
.upload-zone{border:1px dashed var(--border-hover);border-radius:6px;padding:36px 20px;text-align:center;transition:border-color var(--transition);cursor:pointer;background:var(--bg-input)}
.upload-zone:hover,.upload-zone.dragover{border-color:rgba(255,255,255,0.3);background:var(--bg-card-hover)}
.upload-zone-icon{font-size:2rem;margin-bottom:8px;opacity:.4}
.upload-zone-text{color:var(--text-secondary);font-size:.875rem}
.upload-zone-text strong{color:var(--text-primary)}
.upload-zone input[type="file"]{display:none}
.file-list{margin-top:14px}

/* ─── File Item ─────────────────────────────────────────────────────────── */
.file-item, .file-item-card{padding:10px 14px;border-bottom:1px solid var(--border);transition:background var(--transition);overflow:visible}
.file-item{display:flex;align-items:center;gap:12px}
.file-item:last-child, .file-item-card:last-child{border-bottom:none}
.file-item:hover, .file-item-card:hover{background:var(--bg-card-hover)}
.glass-panel{overflow:visible}
.file-icon{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;border:1px solid transparent}
.file-icon.stl{background:rgba(59,130,246,0.12);color:#38bdf8;border-color:rgba(56,189,248,0.25)}
.file-icon.gcode{background:rgba(16,185,129,0.12);color:#34d399;border-color:rgba(52,211,153,0.25)}
.file-icon.\33mf{background:rgba(139,92,246,0.12);color:#a78bfa;border-color:rgba(167,139,250,0.25)}
.file-icon.obj{background:rgba(245,158,11,0.12);color:#fbbf24;border-color:rgba(251,191,36,0.25)}
.file-icon.step{background:rgba(244,114,182,0.12);color:#f472b6;border-color:rgba(244,114,182,0.25)}
.file-icon.image{background:var(--bg-tertiary);color:var(--text-secondary);border-color:var(--border)}
.file-icon.other{background:var(--bg-tertiary);color:var(--text-secondary);border-color:var(--border)}
.file-action-btn{width:28px;height:28px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;background:rgba(255,255,255,0.04);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);padding:0;text-decoration:none}
.file-action-btn:hover{background:rgba(255,255,255,0.1);color:var(--text-primary);border-color:var(--border-hover)}
.file-action-btn.preview:hover{background:rgba(0,212,255,0.15);color:var(--accent-cyan);border-color:rgba(0,212,255,0.35)}
.file-action-btn.delete:hover{background:rgba(239,68,68,0.15);color:var(--error);border-color:rgba(239,68,68,0.35)}
.file-info{flex:1;min-width:0}
.file-name{font-size:.85rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-primary)}
.file-meta{font-size:.75rem;color:var(--text-muted)}
.file-actions{display:flex;gap:6px}
.file-gcode-meta{display:flex;gap:10px;font-size:.65rem;color:var(--text-secondary);margin-top:4px;background:var(--bg-tertiary);padding:2px 8px;border-radius:4px;width:fit-content;border:1px solid var(--border)}
.file-gcode-meta b{color:var(--text-primary)}

/* ─── Print History ─────────────────────────────────────────────────────── */
.print-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border)}
.print-item:last-child{border-bottom:none}
.print-status{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.print-status.success{background:var(--success)}
.print-status.failed{background:var(--error)}
.print-info{flex:1}
.print-material{font-size:.875rem;font-weight:600}
.print-date{font-size:.75rem;color:var(--text-muted)}
.print-notes{font-size:.8rem;color:var(--text-secondary);margin-top:2px;font-style:italic}

:root {
  --detail-sidebar-width: 508px;
}

/* ─── Model Detail ──────────────────────────────────────────────────────── */
.detail-layout{display:grid;grid-template-columns:minmax(0, 1fr) var(--detail-sidebar-width);gap:24px;align-items:start}
.detail-header{display:grid;grid-template-columns:minmax(0, 1fr) var(--detail-sidebar-width);gap:24px;align-items:flex-end;margin-bottom:20px}
.detail-header > div:only-child{grid-column:1 / -1}
.detail-title{font-size:1.5rem;font-weight:700;letter-spacing:-0.02em;color:var(--text-primary)}
.detail-actions{display:flex;gap:8px;align-items:center;justify-content:space-between;width:100%}
.detail-actions:has(> :only-child){justify-content:flex-end}
.detail-meta{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap;align-items:center}
.detail-tips{font-size:.875rem;color:var(--text-secondary);line-height:1.6}

@media(max-width: 1024px){
  .detail-header{display:flex;flex-direction:column;align-items:flex-start;gap:16px}
  .detail-actions{justify-content:flex-start;flex-wrap:wrap;width:auto}
  .detail-layout{grid-template-columns:1fr}
}
.detail-stage-box{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:20px;position:relative}
.detail-stage-footer{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;font-size:.75rem;color:var(--text-muted);border-top:1px solid var(--border);background:var(--bg-tertiary)}

/* 3D Viewer Interactive Studio Suite */
.viewer-container{position:relative;overflow:hidden;width:100%;height:450px}
.viewer-overlay-top{position:absolute;top:10px;left:10px;right:10px;display:flex;align-items:center;justify-content:space-between;pointer-events:none;z-index:10;gap:8px}
.viewer-pill{pointer-events:auto;background:rgba(18,18,30,0.85);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:20px;padding:4px 10px;display:inline-flex;align-items:center;gap:6px;font-size:0.75rem;color:var(--text-secondary);box-shadow:0 4px 12px rgba(0,0,0,0.3)}
.viewer-tool-btn{background:none;border:none;color:var(--text-secondary);padding:5px 8px;border-radius:6px;cursor:pointer;display:inline-flex;align-items:center;gap:4px;font-size:0.75rem;font-weight:600;transition:all var(--transition);line-height:1}
.viewer-tool-btn:hover{color:var(--text-primary);background:rgba(255,255,255,0.08)}
.viewer-tool-btn.active{color:var(--accent-cyan);background:rgba(0,212,255,0.12)}
.viewer-bottom-dock{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);display:inline-flex;align-items:center;gap:6px;background:rgba(18,18,30,0.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:30px;padding:4px 8px;z-index:10;box-shadow:0 6px 20px rgba(0,0,0,0.4);max-width:96%;overflow-x:auto;scrollbar-width:none}
.viewer-bottom-dock::-webkit-scrollbar{display:none}
.viewer-dock-sep{width:1px;height:16px;background:var(--border);margin:0 2px}
.viewer-swatch{width:16px;height:16px;border-radius:50%;cursor:pointer;border:2px solid transparent;transition:transform 0.15s ease,border-color 0.15s ease}
.viewer-swatch:hover{transform:scale(1.25)}
.viewer-swatch.active{border-color:#ffffff;transform:scale(1.2)}
.viewer-fullscreen-active{position:fixed !important;top:0 !important;left:0 !important;width:100vw !important;height:100vh !important;z-index:99999 !important;border-radius:0 !important;margin:0 !important;background:#0d0d18 !important}
.viewer-fullscreen-active .viewer-container{height:100vh !important}

.model-detail-tabs{display:flex;align-items:center;gap:4px;border-bottom:1px solid var(--border);margin-bottom:18px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.model-detail-tabs::-webkit-scrollbar{display:none}
.model-detail-tab-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;background:none;border:none;border-bottom:2px solid transparent;color:var(--text-secondary);font-size:0.8125rem;font-weight:600;cursor:pointer;transition:all var(--transition);white-space:nowrap;margin-bottom:-1px}
.model-detail-tab-btn:hover{color:var(--text-primary)}
.model-detail-tab-btn.active{color:var(--text-primary);border-bottom-color:var(--accent-cyan)}

.detail-tips-box{background:rgba(245,158,11,0.06);border:1px solid rgba(245,158,11,0.18);border-radius:6px;padding:14px 16px;color:var(--text-secondary);font-size:.8125rem;line-height:1.6;margin-bottom:16px}
.detail-description{color:var(--text-secondary);font-size:.875rem;line-height:1.7}

.sidebar-spec-card{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:16px;margin-bottom:16px}
.sidebar-spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.sidebar-spec-item{background:var(--bg-input);padding:8px 10px;border-radius:6px;border:1px solid rgba(255,255,255,0.03)}
.sidebar-spec-item .spec-label{display:block;font-size:0.65rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.04em;margin-bottom:2px}
.sidebar-spec-item .spec-value{font-size:0.85rem;font-weight:600;color:var(--text-primary)}

.sidebar-info-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid rgba(255,255,255,0.04);font-size:0.8125rem}
.sidebar-info-row:last-child{border-bottom:none;padding-bottom:0}
.sidebar-info-row .info-label{color:var(--text-muted)}
.sidebar-info-row .info-value{font-weight:500;color:var(--text-primary)}

/* ─── Footer ────────────────────────────────────────────────────────────── */
.app-footer{padding:14px 28px;border-top:1px solid var(--border);background:var(--bg-navbar);font-size:0.75rem;color:var(--text-muted);margin-top:auto}
.footer-content{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:100%}
.footer-left{display:inline-flex;align-items:center;gap:6px;font-weight:500;color:var(--text-secondary)}
.footer-right{display:inline-flex;align-items:center;gap:18px}
.footer-link{display:inline-flex;align-items:center;gap:5px;color:var(--text-muted);text-decoration:none;font-weight:500;transition:color var(--transition);line-height:1}
.footer-link:hover{color:var(--text-primary)}

/* ─── Forms ─────────────────────────────────────────────────────────────── */
/* === List View Override === */
.models-list-view {
  display: flex !important;
  flex-direction: column;
  gap: 12px;
}
.models-list-view .model-card {
  display: flex;
  flex-direction: row;
  height: 100px;
}
.models-list-view .model-card-thumb {
  width: 140px;
  height: 100%;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}
.models-list-view .model-card-body {
  flex: 1;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.models-list-view .model-card-badges {
  top: auto;
  bottom: 10px;
  right: 10px;
}
.models-list-view .model-card-footer {
  border-top: none;
  border-left: 1px solid var(--border);
  padding: 0 16px;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  min-width: 150px;
}
@media(max-width: 600px) {
  .models-list-view .model-card { height: auto; flex-direction: column; }
  .models-list-view .model-card-thumb { width: 100%; height: 180px; border-right: none; border-bottom: 1px solid var(--border); }
  .models-list-view .model-card-footer { border-left: none; border-top: 1px solid var(--border); flex-direction: row; justify-content: space-between; padding: 12px 16px; }
  .models-list-view .model-card-badges { top: 10px; bottom: auto; }
}

.tag-pill-checkbox{cursor:pointer}
.tag-pill-checkbox input{display:none}
.tag-pill{display:inline-flex;align-items:center;padding:6px 14px;background:rgba(255,255,255,0.03);border:1px solid var(--border);border-radius:20px;font-size:.8rem;color:var(--text-secondary);transition:all .2s ease;user-select:none}
.tag-pill-checkbox:hover .tag-pill{background:rgba(255,255,255,0.08);border-color:var(--text-muted)}
.tag-pill-checkbox input:checked + .tag-pill{background:rgba(56,189,248,0.12);border-color:var(--accent-cyan);color:var(--accent-cyan)}
.tag-pill.new{border-style:dashed;border-color:var(--accent-pink);color:var(--accent-pink);background:rgba(244,114,182,0.05)}
.tag-pill-checkbox input:checked + .tag-pill.new{background:rgba(244,114,182,0.12);border-color:var(--accent-pink);color:var(--accent-pink)}

/* ─── Modern Settings Workspace (2.0 Studio Layout) ──────────────────────── */
.settings-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: start;
  margin-top: 8px;
}

@media (max-width: 900px) {
  .settings-layout {
    grid-template-columns: 1fr;
  }
  .settings-nav-sidebar {
    position: static;
  }
}

.settings-nav-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: 80px;
}

.settings-nav-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.settings-nav-group-title {
  font-size: 0.675rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 4px 10px;
  margin-bottom: 2px;
}

.settings-nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
}

.settings-nav-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.settings-nav-btn.active {
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.25);
  font-weight: 600;
}

.settings-nav-btn svg {
  flex-shrink: 0;
  opacity: 0.8;
}

.settings-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.settings-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.015);
  margin-bottom: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.settings-item:hover {
  background: rgba(255, 255, 255, 0.04);
}

.settings-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.settings-item-name {
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.settings-item-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.color-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
  box-shadow: 0 0 8px rgba(0,0,0,0.4);
}

.add-inline {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  align-items: center;
}

.add-inline input:not([type="color"]) {
  flex: 1;
}

.add-inline input[type="color"] {
  flex: 0 0 36px;
  height: 36px;
}

/* Modern Settings Tables */
.settings-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.settings-table th {
  padding: 10px 14px;
  text-align: left;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
}

.settings-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: middle;
}

.settings-table tr:last-child td {
  border-bottom: none;
}

/* ─── Modal ─────────────────────────────────────────────────────────────── */
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.6);backdrop-filter:blur(4px);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.active{display:flex}
.modal{background:var(--bg-secondary);border:1px solid var(--border-hover);border-radius:var(--radius-xl);width:100%;max-width:560px;max-height:90vh;overflow-y:auto;animation:modalIn .2s ease;box-shadow:0 16px 40px rgba(0,0,0,0.6)}
.modal.modal-lg, .modal-lg, .modal:has(.whats-new-container){max-width:820px}
.modal.modal-xl, .modal-xl{max-width:960px}
@keyframes modalIn{from{opacity:0;transform:scale(.97) translateY(6px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:22px 24px 0;position:sticky;top:0}
.modal-title{font-size:1.15rem;font-weight:700}
.modal-close{background:none;border:none;color:var(--text-muted);font-size:1.5rem;padding:4px;line-height:1;transition:color var(--transition)}
.modal-close:hover{color:var(--text-primary)}
.modal-body{padding:20px 24px 24px}

/* ─── Toast ─────────────────────────────────────────────────────────────── */
.toast-container{position:fixed;top:80px;right:24px;z-index:300;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 18px;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;animation:toastIn .25s ease;display:flex;align-items:center;gap:8px;box-shadow:0 4px 16px rgba(0,0,0,0.4)}
@keyframes toastIn{from{opacity:0;transform:translateX(16px)}to{opacity:1;transform:translateX(0)}}
.toast.success{background:var(--bg-card);border:1px solid rgba(16,185,129,0.35);color:var(--success)}
.toast.error{background:var(--bg-card);border:1px solid rgba(239,68,68,0.35);color:var(--error)}
.toast.info{background:var(--bg-card);border:1px solid rgba(56,189,248,0.35);color:var(--accent-cyan)}

/* ─── Empty State ───────────────────────────────────────────────────────── */
.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}
.empty-state-icon{font-size:3rem;margin-bottom:16px;opacity:.4}
.empty-state-text{font-size:1rem;margin-bottom:8px;color:var(--text-secondary)}
.empty-state-sub{font-size:.85rem}

/* ─── Activity List ─────────────────────────────────────────────────────── */
.activity-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--border);font-size:.875rem}
.activity-item:last-child{border-bottom:none}
.activity-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.color-dot{width:10px;height:10px;border-radius:50%;display:inline-block;margin-right:8px;vertical-align:middle}

/* ─── Skeleton Loading ──────────────────────────────────────────────────── */
.skeleton{background:linear-gradient(90deg,var(--bg-tertiary) 25%,rgba(255,255,255,0.04) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm)}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ─── Dashboard Panels ──────────────────────────────────────────────────── */
.dashboard-panels{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px}

/* ─── 3D Viewer ─────────────────────────────────────────────────────────── */
/* Model Hero Preview */
.glass-panel img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.panel-body.no-pad {
  padding: 0 !important;
  overflow: hidden;
}

.viewer-container {
  height: 400px;
  background: #1a1a2e;
  background: radial-gradient(circle at center, #1e1e38 0%, #0f0f1a 100%);
  position: relative;
}
.viewer-container canvas{width:100%!important;height:100%!important;display:block}
.viewer-controls{position:absolute;bottom:10px;right:10px;display:flex;gap:6px}
.viewer-controls button{background:rgba(0,0,0,0.5);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.1);color:var(--text-primary);padding:6px 10px;border-radius:6px;font-size:.75rem;cursor:pointer;transition:all var(--transition)}
.viewer-controls button:hover{background:rgba(0,0,0,0.7);border-color:var(--accent-cyan)}
.viewer-hint{position:absolute;bottom:10px;left:10px;font-size:.7rem;color:var(--text-muted);background:rgba(0,0,0,0.5);padding:4px 8px;border-radius:4px;pointer-events:none}

/* ─── Upload File Preview ───────────────────────────────────────────────── */
.upload-file-list{margin-top:12px;max-height:120px;overflow-y:auto;border:1px solid var(--border);border-radius:var(--radius-sm)}
.upload-file-item{display:flex;align-items:center;gap:8px;padding:6px 10px;font-size:.8rem;border-bottom:1px solid var(--border)}
.upload-file-item:last-child{border-bottom:none}
.upload-file-item .remove-file{margin-left:auto;color:var(--text-muted);cursor:pointer;background:none;border:none;font-size:.9rem;padding:0 4px}
.upload-file-item .remove-file:hover{color:var(--error)}

/* ─── Responsive ────────────────────────────────────────────────────────── */
@media(max-width:1024px){
  .detail-layout{grid-template-columns:1fr}
  .dashboard-panels{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .navbar{padding:0 16px}
  .nav-links .nav-link span{display:none}
  .nav-link{padding:8px 10px}
  #nav-add-model span{display:none}
  .main-content{padding:20px 16px}
  .model-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
  .toolbar{flex-direction:column;align-items:stretch}
  .form-row{grid-template-columns:1fr}
  .settings-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .stats-grid{grid-template-columns:1fr}
  .model-grid{grid-template-columns:1fr}
  .detail-header{flex-direction:column}
  .page-header{flex-direction:column;align-items:flex-start}
}

/* ─── Bulk Action Bar ───────────────────────────────────────────────────── */
.bulk-action-bar, .bulk-floating-bar{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(120px);background:rgba(14,15,22,0.94);border:1px solid rgba(0,212,255,0.4);box-shadow:0 8px 32px rgba(0,0,0,0.55), 0 0 20px rgba(0,212,255,0.18);padding:8px 16px;border-radius:36px;z-index:1000;display:flex;align-items:center;gap:12px;transition:transform 0.35s cubic-bezier(0.16,1,0.3,1);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.bulk-action-bar.active, .bulk-floating-bar{transform:translateX(-50%) translateY(0)}
.bulk-count, .bulk-selected-badge{font-weight:600;font-size:0.85rem;color:var(--accent-cyan);padding-right:14px;border-right:1px solid rgba(255,255,255,0.12);white-space:nowrap}
.bulk-actions{display:flex;align-items:center;gap:6px}
.bulk-actions .btn, .bulk-floating-bar .btn{display:inline-flex;align-items:center;gap:5px;border-radius:20px;padding:5px 12px;font-size:0.8rem;font-weight:500;transition:all 0.15s ease}
.bulk-actions .btn svg, .bulk-floating-bar .btn svg{flex-shrink:0}

/* ─── Footer ────────────────────────────────────────────────────────────── */
.app-footer{background:var(--bg-card);border-top:1px solid var(--border);padding:12px 24px;margin-top:auto}
.footer-content{display:flex;justify-content:space-between;align-items:center;max-width:1400px;margin:0 auto;font-size:.75rem;color:var(--text-muted)}
.footer-link{color:inherit;text-decoration:none;margin-left:20px;transition:color var(--transition);display:inline-flex;align-items:center;gap:4px}
.footer-link:hover{color:var(--accent-cyan)}

.update-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(245,158,11,0.1);color:#f59e0b;padding:4px 10px;border-radius:12px;margin-left:20px;cursor:pointer;font-weight:600;border:1px solid rgba(245,158,11,0.2);transition:all var(--transition)}
.update-badge:hover{background:rgba(245,158,11,0.2);transform:translateY(-1px)}
.pulse{width:8px;height:8px;background:#f59e0b;border-radius:50%;display:inline-block;animation:pulse-anim 2s infinite}

@keyframes pulse-anim{0%{box-shadow:0 0 0 0 rgba(245,158,11,0.4)}70%{box-shadow:0 0 0 10px rgba(245,158,11,0)}100%{box-shadow:0 0 0 0 rgba(245,158,11,0)}}

@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.rotating { display: inline-block; animation: rotate 2s linear infinite; }
/* ─── Dropdown ─────────────────────────────────────────────────────────── */
.dropdown{position:relative;display:inline-block}
.dropdown-content{display:none;position:absolute;background:var(--bg-secondary);min-width:160px;box-shadow:var(--shadow-lg);border-radius:var(--radius-md);z-index:100;border:1px solid var(--border);right:0;top:100%;}
.dropdown:hover .dropdown-content{display:block;z-index:200}
.dropdown-content a{color:var(--text-secondary);padding:10px 16px;text-decoration:none;display:block;font-size:.875rem;transition:all var(--transition)}
.dropdown-content a:hover{background:rgba(0,212,255,0.08);color:var(--accent-cyan)}
.dropdown-header{padding:8px 16px;font-size:.65rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);background:rgba(255,255,255,0.02)}

/* Drag and Drop feedback */
.tree-node.drag-over {
  background: rgba(0,212,255,0.2) !important;
  border: 1px dashed var(--accent-cyan) !important;
}

.model-card.drag-over {
  border: 2px dashed var(--accent-cyan) !important;
  background: rgba(0,212,255,0.05) !important;
  transform: scale(1.02);
  transition: all 0.2s ease;
}

/* Modern Toggle Switch */
.toggle-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.toggle-item:hover {
  border-color: rgba(0, 212, 255, 0.4);
  background: rgba(255, 255, 255, 0.03);
}
.toggle-item input[type="checkbox"] {
  display: none;
}
.toggle-switch {
  position: relative;
  width: 46px;
  height: 24px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  transition: background 0.25s ease;
  flex-shrink: 0;
  display: inline-block;
}
.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: #ffffff;
  border-radius: 50%;
  transition: transform 0.25s ease;
  box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}
.toggle-item input[type="checkbox"]:checked + .toggle-switch {
  background: var(--accent-cyan);
}
.toggle-item input[type="checkbox"]:checked + .toggle-switch::after {
  transform: translateX(22px);
}

/* ─── Upload Progress Component ────────────────────────────────────────── */
.upload-progress-box {
  margin-top: 14px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.upload-progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.85rem;
  font-weight: 600;
}

.upload-progress-track {
  width: 100%;
  height: 10px;
  background: var(--bg-input);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.upload-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent-gradient);
  border-radius: 6px;
  transition: width 0.12s ease;
}

.upload-progress-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ─── Markdown Body ─────────────────────────────────────────────────────── */
.markdown-body {
  line-height: 1.65;
  color: var(--text-primary);
  word-break: break-word;
}
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  margin-top: 1.1em;
  margin-bottom: 0.5em;
  color: var(--text-primary);
  font-weight: 700;
}
.markdown-body h1 { font-size: 1.35rem; border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.markdown-body h2 { font-size: 1.18rem; border-bottom: 1px solid var(--border); padding-bottom: 4px; }
.markdown-body h3 { font-size: 1.02rem; }
.markdown-body p { margin-bottom: 0.85em; }
.markdown-body ul, .markdown-body ol {
  padding-left: 24px;
  margin-bottom: 0.85em;
}
.markdown-body li { margin-bottom: 4px; }
.markdown-body a {
  color: var(--accent-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.markdown-body blockquote {
  border-left: 3px solid var(--accent-cyan);
  margin: 0.8em 0;
  padding: 8px 16px;
  background: var(--bg-card);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
}
.markdown-body code {
  font-family: var(--font-mono);
  background: var(--bg-input);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
  border: 1px solid var(--border);
}
.markdown-body pre {
  background: var(--bg-secondary);
  padding: 12px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 0.9em 0;
  border: 1px solid var(--border);
}
.markdown-body pre code {
  background: transparent;
  padding: 0;
  border: none;
}
.markdown-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: 8px 0;
  border: 1px solid var(--border);
}
.markdown-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.2em 0;
}

/* Badges & File icons */
.badge-bgcode { background: rgba(245,158,11,0.15); color: #f59e0b; border: 1px solid rgba(245,158,11,0.3); }
.badge-f3d { background: rgba(14,165,233,0.15); color: #0ea5e9; border: 1px solid rgba(14,165,233,0.3); }
.badge-scad { background: rgba(168,85,247,0.15); color: #c084fc; border: 1px solid rgba(168,85,247,0.3); }
.badge-preview { background: rgba(0,212,255,0.2); color: var(--accent-cyan); border: 1px solid var(--accent-cyan); font-weight: 700; font-size: 0.65rem; padding: 2px 6px; border-radius: 4px; }
.file-icon.bgcode { background: rgba(245,158,11,0.15); color: #f59e0b; }
.file-icon.f3d { background: rgba(14,165,233,0.15); color: #0ea5e9; }
.file-icon.scad { background: rgba(168,85,247,0.15); color: #c084fc; }

/* ─── Collections Enhanced Visuals ──────────────────────────────────────── */
.collection-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.15s ease;
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
}
.collection-card:hover {
  border-color: var(--border-hover);
}
.collection-card.selected {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 1px var(--accent-cyan);
}

.collection-thumb-wrapper {
  height: 180px;
  position: relative;
  background: #111215;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.collection-collage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  width: 100%;
  height: 100%;
  gap: 2px;
  background: var(--border);
}

.collection-collage-cell {
  position: relative;
  overflow: hidden;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.collection-collage-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.collection-single-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.collection-empty-thumb {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
}
.collection-empty-thumb svg {
  opacity: 0.35;
}

.collection-card-body {
  padding: 14px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.collection-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}
.collection-card-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.collection-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Collection Stats Ribbon inside Detail */
.collection-stats-ribbon {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.collection-stat-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.collection-stat-pill strong {
  color: var(--text-primary);
  font-weight: 600;
}
.collection-stat-divider {
  width: 1px;
  height: 16px;
  background: var(--border);
  align-self: center;
}

/* Floating Bulk Action Bar */
.bulk-floating-bar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(22, 23, 27, 0.95);
  border: 1px solid var(--border-hover);
  backdrop-filter: blur(12px);
  padding: 10px 18px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 150;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  animation: slideUp 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes slideUp {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}
.bulk-selected-badge {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  padding-right: 10px;
  border-right: 1px solid var(--border);
}

/* ─── What's New / Release Notes Modal ─────────────────────────────────── */
.whats-new-segmented-control {
  display: inline-flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 4px;
  gap: 4px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}
.whats-new-segment-btn {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  padding: 7px 18px;
  border-radius: 24px;
  font-size: 0.825rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
}
.whats-new-segment-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}
.whats-new-segment-btn.active {
  background: var(--accent-cyan);
  color: #0d0f14;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(0, 212, 255, 0.35);
}
.changelog-version-pill {
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: 5px 12px;
  border-radius: 16px;
  font-size: 0.775rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}
.changelog-version-pill:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-hover);
}
.changelog-version-pill.active {
  background: rgba(0, 212, 255, 0.15);
  color: var(--accent-cyan);
  border-color: rgba(0, 212, 255, 0.4);
}
.changelog-date-chip {
  font-size: 0.7rem;
  opacity: 0.75;
  font-weight: 400;
}