:root {
    /* Brand Colors */
    --brand-primary: #FF6B00; /* Arancione principale */
    --brand-primary-hover: #E65A00;
    --brand-secondary: #2D3436; /* Grigio scuro per contrasto */
    --brand-light: #FFF5EB; /* Arancione chiarissimo per sfondi */
    
    /* UI Colors */
    --ui-bg: #F8F9FA;
    --ui-card-bg: #FFFFFF;
    --ui-text-main: #2D3436;
    --ui-text-muted: #636E72;
    --ui-border: #E9ECEF;
    
    /* Status Colors */
    --status-success: #00B894;
    --status-warning: #FDCB6E;
    --status-danger: #FF7675;
    --status-info: #74B9FF;
    
    /* Spacing & Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
    --shadow-hover: 0 12px 32px rgba(255, 107, 0, 0.15);
}

/* Dark Theme */
body.dark-theme {
    --brand-primary: #FF8C2B;
    --brand-primary-hover: #FFA04D;
    --brand-secondary: #E8E8E8;
    --brand-light: #2A2A2A;
    
    --ui-bg: #0F0F0F;
    --ui-card-bg: #1A1A1A;
    --ui-text-main: #E8E8E8;
    --ui-text-muted: #A0A0A0;
    --ui-border: #2D2D2D;
    
    --status-success: #26C281;
    --status-warning: #FFA500;
    --status-danger: #E74C3C;
    --status-info: #3498DB;
    
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
    --shadow-hover: 0 12px 32px rgba(255, 140, 43, 0.25);
}

body {
    background-color: var(--ui-bg);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--ui-text-main);
    -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar {
    background-color: var(--ui-card-bg) !important;
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar-brand-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: background-color 0.3s ease;
}

.navbar-brand-wrapper:hover {
    background-color: var(--ui-bg);
}

.brand-logo {
    height: 40px;
    width: auto;
}

.brand-text {
    font-weight: 700;
    color: var(--brand-secondary);
    font-size: 1.25rem;
    max-width: 0;
    opacity: 0;
    white-space: nowrap;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar-brand-wrapper.expanded .brand-text {
    max-width: 200px;
    opacity: 1;
}

.navbar-text {
    color: var(--ui-text-muted) !important;
    font-weight: 500;
    background: var(--ui-bg);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}

/* Cards */
.card {
    border: none;
    border-radius: var(--radius-md);
    background: var(--ui-card-bg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease;
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--ui-border);
    padding: 1.5rem;
    font-weight: 600;
    color: var(--brand-secondary);
}

/* Stats Cards */
.stats-card {
    position: relative;
    overflow: hidden;
    border-left: 4px solid transparent;
}

.stats-card.primary { border-color: var(--brand-primary); }
.stats-card.success { border-color: var(--status-success); }
.stats-card.warning { border-color: var(--status-warning); }
.stats-card.danger { border-color: var(--status-danger); }

.stats-card .card-body {
    padding: 1rem;
}

.stats-label {
    color: var(--ui-text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.stats-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--brand-secondary);
    margin: 0.1rem 0 0;
    line-height: 1;
}

.stats-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    opacity: 0.1;
    color: var(--brand-secondary);
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--ui-border);
    border-radius: var(--radius-lg);
    background-color: var(--ui-bg);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.drop-zone:hover {
    border-color: var(--brand-primary);
    background-color: var(--brand-light);
}

.drop-zone.drag-over {
    border-color: var(--brand-primary);
    background-color: var(--brand-light);
    transform: scale(1.01);
}

.drop-zone-icon {
    font-size: 4rem;
    color: var(--brand-primary);
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

.drop-zone:hover .drop-zone-icon {
    color: var(--brand-primary-hover);
}

/* Buttons */
.btn {
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.2rem;
    font-weight: 600;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background-color: var(--brand-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(255, 107, 0, 0.2);
}

.btn-primary:hover {
    background-color: var(--brand-primary-hover);
    box-shadow: 0 6px 16px rgba(255, 107, 0, 0.3);
}

.btn-light {
    background: var(--ui-bg);
    color: var(--ui-text-muted);
}

.btn-light:hover {
    background: var(--ui-border);
    color: var(--brand-secondary);
}

/* Table */
.table {
    margin-bottom: 0;
}

.table thead th {
    background-color: var(--ui-bg);
    color: var(--ui-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border-bottom: none;
    padding: 1rem 1.5rem;
}

.table tbody td {
    padding: 1rem 1.5rem;
    vertical-align: middle;
    color: var(--ui-text-main);
    border-bottom: 1px solid var(--ui-border);
}

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

/* Status Badges */
.badge {
    padding: 0.5em 0.8em;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.75rem;
}

.status-pending { background: var(--brand-light); color: var(--brand-primary); }
.status-parsing { background: #E3F2FD; color: #2196F3; }
.status-completed { background: #E8F5E9; color: #2E7D32; }
.status-error { background: #FFEBEE; color: #C62828; }

/* Dark theme status badges */
body.dark-theme .status-pending { background: rgba(255, 140, 43, 0.2); color: #FFA04D; }
body.dark-theme .status-parsing { background: rgba(52, 152, 219, 0.2); color: #74B9FF; }
body.dark-theme .status-completed { background: rgba(38, 194, 129, 0.2); color: #26C281; }
body.dark-theme .status-error { background: rgba(231, 76, 60, 0.2); color: #E74C3C; }

/* Progress Bar */
.progress {
    height: 8px;
    border-radius: 4px;
    background-color: var(--ui-border);
    overflow: hidden;
}

.progress-bar {
    background-color: var(--brand-primary);
}

/* File Icons */
.file-icon {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin-right: 12px;
    font-size: 1.2rem;
}

.file-icon.csv { background: #E8F5E9; color: #2E7D32; }
.file-icon.txt { background: #E3F2FD; color: #1976D2; }
.file-icon.json { background: #FFF3E0; color: #F57C00; }

/* Animations */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: slideUp 0.4s ease forwards;
}

/* Preview Modal */
.preview-code {
    background: #282c34 !important;
    border-radius: var(--radius-md);
    padding: 1rem;
    margin: 0;
    overflow-x: auto;
    font-size: 0.75rem;
    line-height: 1.4;
    color: #abb2bf;
    display: block;
    flex: 0 0 auto;
}

.preview-code code {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    color: #abb2bf;
    display: block;
    white-space: pre;
}

.preview-container {
    padding: 1.5rem;
    overflow-y: auto;
    background: var(--ui-bg);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.preview-container .preview-code {
    background: #282c34 !important;
    border: 1px solid rgba(255, 107, 0, 0.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* Modal Fullscreen adjustments */
.modal-fullscreen .modal-body {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: calc(100vh - 120px);
    background: var(--ui-bg);
}

.modal-fullscreen .tab-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: var(--ui-bg);
}

.modal-fullscreen .tab-pane {
    display: none;
    flex: 1;
    overflow-y: hidden;
}

.modal-fullscreen .tab-pane.active {
    display: flex;
    flex-direction: column;
}

.modal-fullscreen .preview-container {
    flex: 1;
    overflow-y: auto;
    max-height: none;
    padding: 1rem;
}

/* Syntax Highlighting */
.hljs { background: transparent !important; }
.hljs-attr { color: #e06c75; }
.hljs-string { color: #98c379; }
.hljs-number { color: #d19a66; }
.hljs-literal { color: #56b6c2; }
.hljs-title { color: #61afef; }
.hljs-name { color: #e06c75; }

/* Search Highlight - Visible on top of syntax highlighting */
.search-highlight {
    background-color: #ffd700 !important;
    color: #000 !important;
    padding: 0 2px;
    border-radius: 2px;
    font-weight: 600;
    box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.3);
}

/* Tabs */
.nav-tabs {
    background-color: var(--ui-bg) !important;
    padding: 0 1.5rem;
    margin: 0;
    border-bottom: 2px solid var(--ui-border);
}

.nav-tabs .nav-link {
    color: var(--ui-text-muted);
    border: none;
    border-bottom: 3px solid transparent;
    padding: 1rem 1rem;
    font-weight: 600;
    transition: all 0.2s ease;
    margin-bottom: -2px;
}

.nav-tabs .nav-link:hover {
    color: var(--brand-primary);
    border-bottom-color: var(--brand-primary);
}

.nav-tabs .nav-link.active {
    color: var(--brand-primary);
    border-bottom-color: var(--brand-primary);
    background-color: transparent;
}

/* Search Input */
.input-group-sm .form-control {
    font-size: 0.875rem;
    padding: 0.375rem 0.75rem;
}

.form-control {
    border-color: var(--ui-border);
    border-radius: var(--radius-sm);
}

.form-control:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 0.2rem rgba(255, 107, 0, 0.1);
}

.btn-outline-secondary {
    color: var(--ui-text-muted);
    border-color: var(--ui-border);
}

.btn-outline-secondary:hover {
    background-color: var(--ui-bg);
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

/* Clock */
.clock-container {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--ui-bg);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--ui-text-muted);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
}

.clock-container:hover {
    background: var(--brand-light);
    color: var(--brand-primary);
}

.clock-icon {
    font-size: 1.1rem;
}

.clock-time {
    white-space: nowrap;
}

.clock-date {
    max-width: 0;
    opacity: 0;
    white-space: nowrap;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.clock-container.expanded .clock-date {
    max-width: 200px;
    opacity: 1;
    margin-left: 8px;
    padding-left: 8px;
    border-left: 1px solid rgba(0,0,0,0.1);
}

.clock-container.expanded:hover .clock-date {
    border-left-color: rgba(255, 107, 0, 0.2);
}

/* Navbar Navigation */
.navbar-nav .nav-link {
    color: var(--ui-text-muted);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--brand-primary);
    background-color: var(--brand-light);
}

.navbar-nav .nav-link.active {
    color: var(--brand-primary);
    font-weight: 600;
    background-color: var(--brand-light);
}

/* Theme Selection Cards */
.theme-card {
    transition: all 0.3s ease;
    cursor: pointer;
    background: var(--ui-card-bg);
    border: 2px solid var(--ui-border) !important;
}

.theme-card:hover {
    border-color: var(--brand-primary) !important;
    box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.1);
}

.theme-card.selected {
    border-color: var(--brand-primary) !important;
    background: linear-gradient(135deg, rgba(255, 107, 0, 0.05), rgba(255, 107, 0, 0.02));
}

.theme-card .form-check-input {
    cursor: pointer;
}

.theme-card .form-check-label {
    cursor: pointer;
    margin: 0;
}

.theme-preview {
    border-radius: 4px;
    background: #F8F9FA;
    border: 1px solid var(--ui-border);
}

.dark-preview {
    background: #1A1A1A;
    border-color: #2D2D2D;
}

.fw-600 {
    font-weight: 600;
}

/* Dark theme specific adjustments */
body.dark-theme .btn-link {
    color: var(--ui-text-main) !important;
}

body.dark-theme .dropdown-menu {
    background-color: var(--ui-card-bg);
    border-color: var(--ui-border);
}

body.dark-theme .dropdown-item {
    color: var(--ui-text-main);
}

body.dark-theme .dropdown-item:hover {
    background-color: var(--ui-bg);
    color: var(--brand-primary);
}

body.dark-theme .dropdown-divider {
    border-color: var(--ui-border);
}

body.dark-theme .list-group-item {
    background-color: var(--ui-card-bg);
    border-color: var(--ui-border);
    color: var(--ui-text-main);
}

body.dark-theme .list-group-item:hover {
    background-color: var(--ui-bg);
}

body.dark-theme .list-group-item.active {
    background-color: var(--brand-primary);
    border-color: var(--brand-primary);
    color: #FFFFFF;
}

body.dark-theme .form-control {
    background-color: var(--ui-bg);
    border-color: var(--ui-border);
    color: var(--ui-text-main);
}

body.dark-theme .form-control:focus {
    background-color: var(--ui-card-bg);
    border-color: var(--brand-primary);
    color: var(--ui-text-main);
}

body.dark-theme .form-control:disabled {
    background-color: var(--ui-border);
    color: var(--ui-text-muted);
}

body.dark-theme .modal-content {
    background-color: var(--ui-card-bg);
    color: var(--ui-text-main);
}

body.dark-theme .modal-header {
    border-bottom-color: var(--ui-border);
}

body.dark-theme .modal-footer {
    border-top-color: var(--ui-border);
}

body.dark-theme .btn-secondary {
    background-color: var(--ui-border);
    border-color: var(--ui-border);
    color: var(--ui-text-main);
}

body.dark-theme .btn-secondary:hover {
    background-color: var(--ui-text-muted);
    border-color: var(--ui-text-muted);
}

body.dark-theme .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

body.dark-theme .table {
    color: var(--ui-text-main);
    --bs-table-bg: transparent;
}

body.dark-theme .table td,
body.dark-theme .table th {
    background-color: transparent;
    border-color: var(--ui-border);
}

body.dark-theme .table thead th {
    background-color: var(--ui-bg);
    color: var(--ui-text-muted);
}

body.dark-theme .table tbody tr:hover {
    background-color: rgba(255, 140, 43, 0.05);
}

body.dark-theme .theme-preview {
    border-color: var(--ui-border);
}

body.dark-theme .theme-card {
    color: var(--ui-text-main);
}

body.dark-theme .card {
    color: var(--ui-text-main);
}

body.dark-theme .form-label {
    color: var(--ui-text-main);
}

body.dark-theme .form-text {
    color: var(--ui-text-muted);
}

body.dark-theme .text-muted {
    color: var(--ui-text-muted) !important;
}

body.dark-theme .text-dark {
    color: var(--ui-text-main) !important;
}

/* Toasts */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1060;
}

.toast {
    background-color: var(--ui-card-bg);
    border: none;
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 0.75rem;
    min-width: 300px;
}

.toast-header {
    background-color: transparent;
    border-bottom: 1px solid var(--ui-border);
    color: var(--brand-secondary);
    font-weight: 600;
    padding: 0.75rem 1rem;
}

.toast-body {
    color: var(--ui-text-main);
    padding: 1rem;
    font-size: 0.9rem;
}

/* Custom Toast Variants (Border Left) */
.toast-custom {
    border-left: 4px solid transparent;
}

.toast-custom.toast-success { border-left-color: var(--status-success); }
.toast-custom.toast-danger { border-left-color: var(--status-danger); }
.toast-custom.toast-warning { border-left-color: var(--status-warning); }
.toast-custom.toast-info { border-left-color: var(--status-info); }

.toast-custom .toast-header {
    border-bottom: none;
    padding-bottom: 0;
}

.toast-custom .toast-body {
    padding-top: 0.5rem;
}