/* 3D Print Manager v4 - Styles */
:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #252525;
    --primary: #00d4aa;
    --primary-hover: #00b892;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --border: #333;
    --success: #00c853;
    --warning: #ffc107;
    --danger: #ff5252;
    --info: #2196f3;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', system-ui, sans-serif; background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; }

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

.sidebar { width: 260px; background: var(--bg-secondary); border-right: 1px solid var(--border); display: flex; flex-direction: column; position: fixed; height: 100vh; z-index: 100; transition: transform 0.3s; }
.sidebar.collapsed { transform: translateX(-260px); }
.sidebar-header { padding: 1.5rem; border-bottom: 1px solid var(--border); }
.logo { display: flex; align-items: center; gap: 0.75rem; font-size: 1.25rem; font-weight: 600; color: var(--primary); }
.logo i { font-size: 1.5rem; }
.sidebar-nav { flex: 1; padding: 1rem 0; overflow-y: auto; }
.nav-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.875rem 1.5rem; color: var(--text-secondary); text-decoration: none; transition: all 0.2s; cursor: pointer; }
.nav-item:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.nav-item.active { background: var(--primary); color: var(--bg-primary); font-weight: 500; }
.nav-item i { width: 20px; text-align: center; }
.sidebar-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); }
.user-info { display: flex; align-items: center; gap: 0.5rem; color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 0.75rem; }
.logout-btn { display: flex; align-items: center; gap: 0.5rem; color: var(--danger); text-decoration: none; font-size: 0.875rem; }
.logout-btn:hover { text-decoration: underline; }

.main-content { flex: 1; margin-left: 260px; min-height: 100vh; transition: margin-left 0.3s; }
.sidebar.collapsed + .main-content { margin-left: 0; }
.main-header { display: flex; align-items: center; gap: 1rem; padding: 1rem 2rem; background: var(--bg-secondary); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; }
.main-header h1 { flex: 1; font-size: 1.5rem; font-weight: 600; }
.sidebar-toggle { background: none; border: none; color: var(--text-primary); font-size: 1.25rem; cursor: pointer; padding: 0.5rem; }
.content-area { padding: 2rem; }

.btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.625rem 1.25rem; border: none; border-radius: 6px; font-size: 0.875rem; font-weight: 500; cursor: pointer; transition: all 0.2s; text-decoration: none; }
.btn-primary { background: var(--primary); color: var(--bg-primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { opacity: 0.9; }
.btn-success { background: var(--success); color: white; }
.btn-warning { background: var(--warning); color: #000; }
.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8125rem; }
.btn-icon { padding: 0.5rem; min-width: 36px; justify-content: center; }

.card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 1.5rem; }
.card-header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); flex-wrap: wrap; gap: 0.75rem; }
.card-title { display: flex; align-items: center; gap: 0.5rem; font-size: 1rem; font-weight: 600; }
.card-title i { color: var(--primary); }
.card-body { padding: 1.5rem; }

.form-group { margin-bottom: 1rem; }
.form-label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.5rem; color: var(--text-secondary); }
.form-input, .form-select, .form-textarea { width: 100%; padding: 0.625rem 0.875rem; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: 6px; color: var(--text-primary); font-size: 0.875rem; transition: border-color 0.2s; }
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--primary); }
.form-textarea { min-height: 100px; resize: vertical; }
.form-hint { font-size: 0.75rem; color: var(--text-secondary); margin-top: 0.25rem; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }

.table-container { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 0.875rem 1rem; text-align: left; border-bottom: 1px solid var(--border); }
.table th { background: var(--bg-tertiary); font-weight: 600; font-size: 0.8125rem; text-transform: uppercase; color: var(--text-secondary); }
.table tr:hover { background: var(--bg-tertiary); }
.table-actions { display: flex; gap: 0.5rem; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; margin-bottom: 2rem; }
.stat-card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 8px; padding: 1.5rem; display: flex; align-items: center; gap: 1rem; }
.stat-icon { width: 48px; height: 48px; background: var(--primary); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.25rem; color: var(--bg-primary); }
.stat-value { font-size: 1.5rem; font-weight: 700; }
.stat-label { font-size: 0.875rem; color: var(--text-secondary); }

.badge { display: inline-block; padding: 0.25rem 0.5rem; border-radius: 4px; font-size: 0.75rem; font-weight: 500; }
.badge-draft, .badge-Entwurf { background: var(--warning); color: #000; }
.badge-sent, .badge-Gesendet { background: var(--info); color: #fff; }
.badge-paid, .badge-Bezahlt { background: var(--success); color: #fff; }
.badge-cancelled, .badge-Storniert { background: var(--danger); color: #fff; }
.badge-admin { background: var(--info); color: #fff; }
.badge-user { background: var(--bg-tertiary); color: var(--text-secondary); }
.badge-active { background: var(--success); color: #fff; }
.badge-inactive { background: var(--danger); color: #fff; }
.badge-warning { background: var(--warning); color: #000; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.8); display: flex; align-items: center; justify-content: center; z-index: 1000; opacity: 0; pointer-events: none; transition: opacity 0.2s; padding: 1rem; }
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 12px; width: 90%; max-width: 500px; max-height: 90vh; overflow: hidden; transform: scale(0.9); transition: transform 0.2s; display: flex; flex-direction: column; }
.modal-overlay.active .modal { transform: scale(1); }
.modal.modal-lg { max-width: 800px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.modal-header h2 { font-size: 1.125rem; }
.modal-close { background: none; border: none; color: var(--text-secondary); font-size: 1.25rem; cursor: pointer; }
.modal-body { padding: 1.5rem; overflow-y: auto; flex: 1; }
.modal-footer { display: flex; gap: 0.75rem; justify-content: flex-end; padding-top: 1rem; margin-top: 1rem; border-top: 1px solid var(--border); }

.toast-container { position: fixed; bottom: 2rem; right: 2rem; z-index: 2000; display: flex; flex-direction: column; gap: 0.75rem; }
.toast { display: flex; align-items: center; gap: 0.75rem; padding: 1rem 1.5rem; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 8px; animation: slideIn 0.3s ease; min-width: 300px; max-width: 450px; }
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.warning { border-left: 4px solid var(--warning); }
.toast-icon { font-size: 1.25rem; flex-shrink: 0; }
.toast.success .toast-icon { color: var(--success); }
.toast.error .toast-icon { color: var(--danger); }
.toast.warning .toast-icon { color: var(--warning); }
.toast-message { flex: 1; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 2rem; background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary)); }
.auth-container { width: 100%; max-width: 400px; }
.auth-card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 12px; padding: 2rem; }
.auth-header { text-align: center; margin-bottom: 2rem; }
.auth-logo { width: 64px; height: 64px; background: var(--primary); border-radius: 16px; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; }
.auth-logo i { font-size: 2rem; color: var(--bg-primary); }
.auth-header h1 { font-size: 1.5rem; margin-bottom: 0.25rem; }
.auth-header p { color: var(--text-secondary); }
.auth-form .form-group { margin-bottom: 1.25rem; }
.auth-form .btn { margin-top: 0.5rem; }

.alert { padding: 1rem; border-radius: 6px; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.75rem; }
.alert-error { background: rgba(255, 82, 82, 0.1); border: 1px solid var(--danger); color: var(--danger); }
.alert-success { background: rgba(0, 200, 83, 0.1); border: 1px solid var(--success); color: var(--success); }

.qr-code { background: white; padding: 1rem; border-radius: 8px; display: inline-block; margin: 1rem 0; }
.qr-code img { display: block; max-width: 180px; }
.secret-key { background: var(--bg-tertiary); padding: 1rem; border-radius: 6px; margin: 1rem 0; word-break: break-all; font-family: monospace; font-size: 0.875rem; }
.setup-2fa { text-align: center; }
.setup-2fa h2 { margin-bottom: 1rem; }

.cost-breakdown { background: var(--bg-tertiary); border-radius: 8px; padding: 1rem; }
.cost-item { display: flex; justify-content: space-between; padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
.cost-item:last-child { border-bottom: none; }
.cost-item.total { font-weight: 700; font-size: 1.125rem; color: var(--primary); border-top: 2px solid var(--primary); margin-top: 0.5rem; padding-top: 0.75rem; }

.calculator-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }

.empty-state { text-align: center; padding: 3rem; color: var(--text-secondary); }
.empty-state i { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state h3 { margin-bottom: 0.5rem; }

.loading { display: flex; align-items: center; justify-content: center; padding: 3rem; }
.spinner { width: 40px; height: 40px; border: 3px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.search-box { display: flex; gap: 0.75rem; margin-bottom: 1rem; flex-wrap: wrap; }
.search-box .form-input { flex: 1; min-width: 200px; }

.customer-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.customer-stat { background: var(--bg-tertiary); padding: 1rem; border-radius: 8px; text-align: center; }
.customer-stat-value { font-size: 1.5rem; font-weight: 700; }
.customer-stat-label { font-size: 0.75rem; color: var(--text-secondary); text-transform: uppercase; }
.customer-stat.warning .customer-stat-value { color: var(--warning); }

.material-photo { width: 40px; height: 40px; border-radius: 4px; object-fit: cover; background: var(--bg-tertiary); }
.photo-preview { max-width: 150px; max-height: 150px; border-radius: 8px; margin-top: 0.5rem; object-fit: cover; }

.color-preview { width: 24px; height: 24px; border-radius: 4px; display: inline-block; vertical-align: middle; border: 1px solid var(--border); }

.item-list { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.item-tag { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.375rem 0.75rem; background: var(--bg-tertiary); border-radius: 4px; font-size: 0.875rem; }
.item-tag .delete-btn { background: none; border: none; color: var(--text-secondary); cursor: pointer; padding: 0 0 0 0.25rem; font-size: 0.75rem; line-height: 1; }
.item-tag .delete-btn:hover { color: var(--danger); }

.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem; overflow-x: auto; }
.tab { padding: 0.75rem 1.5rem; background: none; border: none; color: var(--text-secondary); cursor: pointer; border-bottom: 2px solid transparent; transition: all 0.2s; white-space: nowrap; }
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

.email-test { display: flex; gap: 0.5rem; align-items: flex-end; }
.email-test .form-group { flex: 1; margin-bottom: 0; }

.invoice-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* Inventory Cards */
.inventory-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.inventory-card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: transform 0.2s; }
.inventory-card:hover { transform: translateY(-2px); }
.inventory-card.warning { border-color: var(--warning); }
.inventory-card.danger { border-color: var(--danger); }
.inventory-photo { width: 100%; height: 120px; object-fit: cover; }
.inventory-photo-placeholder { width: 100%; height: 120px; background: var(--bg-tertiary); display: flex; align-items: center; justify-content: center; font-size: 2rem; color: var(--text-secondary); }
.inventory-info { padding: 1rem; }
.inventory-name { font-weight: 600; margin-bottom: 0.25rem; }
.inventory-type { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.5rem; }
.inventory-stock { font-size: 1.25rem; font-weight: 700; color: var(--primary); }
.inventory-card.warning .inventory-stock { color: var(--warning); }
.inventory-card.danger .inventory-stock { color: var(--danger); }
.table-thumb { width: 24px; height: 24px; border-radius: 4px; object-fit: cover; vertical-align: middle; margin-right: 0.5rem; }

/* Mobile Optimizations */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-260px); }
    .sidebar.mobile-open { transform: translateX(0); box-shadow: 0 0 20px rgba(0,0,0,0.5); }
    .main-content { margin-left: 0; }
    .content-area { padding: 0.75rem; }
    .main-header { padding: 0.75rem 1rem; }
    .main-header h1 { font-size: 1.125rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
    .stat-card { padding: 1rem; flex-direction: column; text-align: center; gap: 0.5rem; }
    .stat-icon { width: 40px; height: 40px; font-size: 1rem; }
    .stat-value { font-size: 1.25rem; }
    .customer-stats { grid-template-columns: 1fr 1fr 1fr; gap: 0.5rem; }
    .customer-stat { padding: 0.75rem 0.5rem; }
    .customer-stat-value { font-size: 1.125rem; }
    .calculator-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .card { margin-bottom: 1rem; border-radius: 6px; }
    .card-header { padding: 0.75rem 1rem; }
    .card-body { padding: 1rem; }
    .table th, .table td { padding: 0.625rem 0.5rem; font-size: 0.8125rem; }
    .table-actions { flex-wrap: wrap; }
    .btn { padding: 0.5rem 0.875rem; font-size: 0.8125rem; }
    .btn-sm { padding: 0.375rem 0.625rem; }
    .btn-icon { padding: 0.375rem; min-width: 32px; }
    .modal { max-width: 95%; max-height: 95vh; margin: 0.5rem; }
    .modal-body { padding: 1rem; }
    .tabs { gap: 0; }
    .tab { padding: 0.625rem 0.875rem; font-size: 0.8125rem; }
    .inventory-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
    .inventory-photo, .inventory-photo-placeholder { height: 80px; }
    .inventory-info { padding: 0.75rem; }
    .inventory-name { font-size: 0.875rem; }
    .inventory-stock { font-size: 1rem; }
    .cost-breakdown { padding: 0.75rem; }
    .cost-item { padding: 0.375rem 0; font-size: 0.875rem; }
    .form-input, .form-select, .form-textarea { padding: 0.5rem 0.75rem; font-size: 0.875rem; }
    .toast-container { bottom: 1rem; right: 1rem; left: 1rem; }
    .toast { min-width: auto; padding: 0.75rem 1rem; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .inventory-grid { grid-template-columns: 1fr; }
    .customer-stats { grid-template-columns: 1fr; }
    .table-actions .btn span { display: none; }
    .main-header .btn span { display: none; }
}

@media print {
    body { background: white; color: black; }
    .sidebar, .main-header, .btn, .no-print { display: none !important; }
    .main-content { margin-left: 0; }
}