/* ========================================
   VARIABLES CSS ET THÈMES
   ======================================== */
:root {
    /* Couleurs thème clair */
    --bg-primary: #f9fafb;
    --bg-secondary: #ffffff;
    --bg-hover: #f3f4f6;
    --bg-table-header: #f9fafb;
    
    --text-primary: #111827;
    --text-secondary: #6b7280;
    
    --border-color: #e5e7eb;
    
    /* Couleurs de statut */
    --color-success: #10b981;
    --color-success-bg: #d1fae5;
    --color-success-text: #065f46;
    
    --color-warning: #f59e0b;
    --color-warning-bg: #fef3c7;
    --color-warning-text: #92400e;
    
    --color-alert: #ef4444;
    --color-alert-bg: #fee2e2;
    --color-alert-text: #991b1b;
    
    --color-info: #3b82f6;
    --color-info-bg: #dbeafe;
    --color-info-text: #1e40af;
    
    --color-purple-bg: #f3e8ff;
    --color-purple-text: #6b21a8;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body.theme-dark {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-hover: #374151;
    --bg-table-header: #374151;
    
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    
    --border-color: #374151;
}

/* ========================================
   RESET ET BASE
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ========================================
   HEADER
   ======================================== */
.header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.header-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.datetime {
    text-align: right;
    margin-right: 1rem;
}

.date {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.time {
    font-size: 1.125rem;
    font-weight: 600;
}

.theme-toggle {
    padding: 0.5rem;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background-color: var(--bg-hover);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* ========================================
   STATS GRID
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

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

.stat-card-content {
    flex: 1;
}

.stat-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.stat-icon {
    padding: 0.5rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
}

.stat-icon-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.stat-icon-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.stat-icon-alert {
    background-color: var(--color-alert-bg);
    color: var(--color-alert);
}

.stat-icon-info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
}

.stat-header h3 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-body {
    margin-left: 3rem;
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.stat-detail {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.stat-status {
    margin-left: 0.5rem;
}

.stat-status svg {
    width: 20px;
    height: 20px;
}

.stat-status-success {
    color: var(--color-success);
}

.stat-status-warning {
    color: var(--color-warning);
}

.stat-status-alert {
    color: var(--color-alert);
}

/* ========================================
   CARD
   ======================================== */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-header svg {
    width: 24px;
    height: 24px;
}

.card-content {
    padding: 1.5rem;
}

/* ========================================
   TABLE
   ======================================== */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background-color: var(--bg-table-header);
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    padding: 0.75rem 1.5rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

.data-table tbody tr:hover {
    background-color: var(--bg-hover);
}

.data-table td {
    padding: 1rem 1.5rem;
    white-space: nowrap;
}

.table-unit-name {
    font-weight: 500;
}

.table-value-success {
    color: var(--color-success);
    font-weight: 600;
}

.table-value-warning {
    color: var(--color-warning);
    font-weight: 600;
}

.table-value-alert {
    color: var(--color-alert);
    font-weight: 600;
}

.table-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 0.25rem;
}

.badge-success {
    background-color: var(--color-success-bg);
    color: var(--color-success-text);
}

.badge-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning-text);
}

.badge-alert {
    background-color: var(--color-alert-bg);
    color: var(--color-alert-text);
}

.alert-icon {
    color: var(--color-alert);
    vertical-align: middle;
    margin-left: 0.5rem;
}

/* ========================================
   TABLE ACTIONS
   ======================================== */
.table-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    padding: 0.375rem;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background-color: var(--bg-hover);
}

.btn-icon svg {
    width: 16px;
    height: 16px;
}

.btn-icon-edit {
    color: var(--color-info);
}

.btn-icon-edit:hover {
    background-color: var(--color-info-bg);
    border-color: var(--color-info);
}

.btn-icon-delete {
    color: var(--color-alert);
}

.btn-icon-delete:hover {
    background-color: var(--color-alert-bg);
    border-color: var(--color-alert);
}

/* ========================================
   TWO COLUMNS LAYOUT
   ======================================== */
.two-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* ========================================
   ITEMS LIST
   ======================================== */
.items-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.item-card {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    position: relative;
}

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

.item-card-alert {
    border-color: #fca5a5;
    background-color: var(--color-alert-bg);
}

.item-card-warning {
    border-color: #fcd34d;
    background-color: var(--color-warning-bg);
}

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

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.item-info h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.item-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.item-badge {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 0.25rem;
}

.item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
}

.item-footer-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.item-footer-info svg {
    width: 16px;
    height: 16px;
}

.item-days {
    font-size: 0.875rem;
    font-weight: 500;
}

.days-alert {
    color: var(--color-alert);
}

.days-success {
    color: var(--color-success);
}

/* ========================================
   ITEM DELETE BUTTON
   ======================================== */
.item-delete {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem;
    background-color: transparent;
    border: none;
    color: var(--color-alert);
    cursor: pointer;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
    opacity: 0;
}

.item-card:hover .item-delete {
    opacity: 1;
}

.item-delete:hover {
    background-color: var(--color-alert-bg);
}

.item-delete svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   BOUTONS D'AJOUT
   ======================================== */
.btn-add {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--color-info);
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-add:hover {
    background-color: #2563eb;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-add svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   ACTION BUTTONS
   ======================================== */
.action-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.btn-action {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.btn-action:hover {
    background-color: var(--bg-hover);
    box-shadow: var(--shadow-md);
}

.btn-action svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   MODALS
   ======================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.modal-content {
    background-color: var(--bg-secondary);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* ========================================
   FORMULAIRES
   ======================================== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.625rem 0.75rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-info);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ========================================
   BOUTONS DE MODAL
   ======================================== */
.btn-primary {
    padding: 0.625rem 1.25rem;
    background-color: var(--color-info);
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background-color: #2563eb;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    padding: 0.625rem 1.25rem;
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background-color: var(--bg-hover);
}
/* ========================================
   BOUTON DE SUPPRESSION
   ======================================== */
.btn-delete {
    padding: 0.625rem 1.25rem;
    background-color: var(--color-alert);
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-delete:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   BOUTONS D'ACTIONS SUR LES ITEMS
   ======================================== */
.item-actions {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    display: flex;
    gap: 0.25rem;
    opacity: 0;
    transition: opacity 0.2s ease;
}

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

.item-edit,
.item-delete {
    padding: 0.25rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.item-edit {
    color: var(--color-info);
}

.item-edit:hover {
    background-color: var(--color-info-bg);
    border-color: var(--color-info);
}

.item-delete {
    color: var(--color-alert);
}

.item-delete:hover {
    background-color: var(--color-alert-bg);
    border-color: var(--color-alert);
}

.item-edit svg,
.item-delete svg {
    width: 14px;
    height: 14px;
}

body.theme-dark .item-edit,
body.theme-dark .item-delete {
    background-color: var(--bg-hover);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .header-right {
        width: 100%;
        justify-content: space-between;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .two-columns {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .btn-action {
        width: 100%;
        justify-content: center;
    }
    
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-footer {
        flex-direction: column-reverse;
    }
    
    .modal-footer button {
        width: 100%;
    }
}