/* ========================================
   MONITORIX DASHBOARD - CSS Custom
   Design: Moderne/Minimaliste
   Palette: Bleu Professionnel
   ======================================== */

/* ----------------------------------------
   1. CSS VARIABLES
   ---------------------------------------- */
:root {
    /* Primary Colors */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;

    /* Accent */
    --accent: #06b6d4;
    --accent-light: #22d3ee;

    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;

    /* Grayscale */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Layout */
    --sidebar-width: 72px;
    --sidebar-expanded: 260px;
    --topbar-height: 64px;
    --content-padding: 24px;

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ----------------------------------------
   2. RESET & BASE
   ---------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--gray-700);
    background-color: var(--gray-50);
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* ----------------------------------------
   3. LAYOUT - SIDEBAR
   ---------------------------------------- */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: white;
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-slow);
    overflow: hidden;
}

.sidebar:hover {
    width: var(--sidebar-expanded);
}

.sidebar:hover .nav-text,
.sidebar:hover .sidebar-brand-text {
    opacity: 1;
    transform: translateX(0);
}

/* Sidebar Brand */
.sidebar-brand {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 16px;
    border-bottom: 1px solid var(--gray-100);
    gap: 12px;
    flex-shrink: 0;
}

.sidebar-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    object-fit: contain;
    flex-shrink: 0;
}

.sidebar-brand-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-slow);
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px;
    border-radius: var(--radius);
    color: var(--gray-600);
    font-weight: 500;
    gap: 12px;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-item i {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.nav-text {
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-slow);
}

.nav-item:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.nav-item.active {
    background: var(--primary-50);
    color: var(--primary);
}

.nav-item.active i {
    color: var(--primary);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--gray-100);
}

.sidebar-footer .nav-item {
    color: var(--danger);
}

.sidebar-footer .nav-item:hover {
    background: var(--danger-light);
    color: var(--danger);
}

/* ----------------------------------------
   4. LAYOUT - MAIN CONTENT
   ---------------------------------------- */
.main-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-slow);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Topbar */
.topbar {
    height: var(--topbar-height);
    background: white;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--content-padding);
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.topbar-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
}

.topbar-subtitle {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Topbar Icons */
.topbar-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    border: none;
    background: transparent;
    color: var(--gray-500);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    position: relative;
}

.topbar-btn:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.topbar-btn .badge {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid white;
}

/* User Avatar */
.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.user-avatar:hover {
    transform: scale(1.05);
}

.user-avatar img {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    object-fit: cover;
}

/* Divider */
.topbar-divider {
    width: 1px;
    height: 24px;
    background: var(--gray-200);
    margin: 0 8px;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--content-padding);
}

/* ----------------------------------------
   5. COMPONENTS - CARDS
   ---------------------------------------- */
.card {
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
}

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

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: white;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-title i {
    color: var(--primary);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-100);
    background: var(--gray-50);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}
@media (max-width: 1200px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

.stat-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    transition: all var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-icon.primary {
    background: var(--primary-100);
    color: var(--primary);
}

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

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

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

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    font-weight: 500;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

/* ----------------------------------------
   6. COMPONENTS - BUTTONS
   ---------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: white;
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: #059669;
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    color: white;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 14px 24px;
    font-size: 1rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
}

/* ----------------------------------------
   7. COMPONENTS - BADGES
   ---------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    gap: 4px;
}

.badge-primary {
    background: var(--primary-100);
    color: var(--primary);
}

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

.badge-warning {
    background: var(--warning-light);
    color: #b45309;
}

.badge-danger {
    background: var(--danger-light);
    color: var(--danger);
}

.badge-info {
    background: var(--info-light);
    color: var(--info);
}

.badge-gray {
    background: var(--gray-100);
    color: var(--gray-600);
}

/* ----------------------------------------
   8. COMPONENTS - FORMS
   ---------------------------------------- */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: 0.9375rem;
    color: var(--gray-900);
    background: white;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px var(--danger-light);
}

.form-text {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-top: 4px;
}

.form-error {
    font-size: 0.8125rem;
    color: var(--danger);
    margin-top: 4px;
}

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Textarea */
textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* ----------------------------------------
   9. COMPONENTS - TABLES
   ---------------------------------------- */
.table-container {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
}

.table th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    background: var(--gray-50);
}

.table tbody tr:hover {
    background: var(--gray-50);
}

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

/* ----------------------------------------
   10. COMPONENTS - LISTS
   ---------------------------------------- */
.list-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    gap: 12px;
    border-bottom: 1px solid var(--gray-100);
    transition: background var(--transition-fast);
}

.list-item:last-child {
    border-bottom: none;
}

.list-item:hover {
    background: var(--gray-50);
}

.list-item-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    color: var(--gray-600);
    flex-shrink: 0;
}

.list-item-content {
    flex: 1;
    min-width: 0;
}

.list-item-title {
    font-weight: 500;
    color: var(--gray-900);
    margin-bottom: 2px;
}

.list-item-subtitle {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.list-item-actions {
    display: flex;
    gap: 8px;
}

/* ----------------------------------------
   11. COMPONENTS - DROPDOWN
   ---------------------------------------- */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: 200;
}

.dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--gray-700);
    font-size: 0.875rem;
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--gray-50);
    color: var(--gray-900);
}

.dropdown-item i {
    width: 16px;
    color: var(--gray-400);
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-100);
    margin: 8px 0;
}

/* ----------------------------------------
   12. COMPONENTS - PROGRESS
   ---------------------------------------- */
.progress {
    height: 6px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar.primary { background: var(--primary); }
.progress-bar.success { background: var(--success); }
.progress-bar.warning { background: var(--warning); }
.progress-bar.danger { background: var(--danger); }

/* ----------------------------------------
   13. UTILITIES
   ---------------------------------------- */

/* Text */
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-muted { color: var(--gray-500) !important; }
.text-dark { color: var(--gray-900) !important; }

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-center { text-align: center; }
.text-right { text-align: right; }

/* Spacing */
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-5 { margin-top: 20px; }
.mt-6 { margin-top: 24px; }

.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-5 { margin-bottom: 20px; }
.mb-6 { margin-bottom: 24px; }

.mr-2 { margin-right: 8px; }
.ml-2 { margin-left: 8px; }

.p-2 { padding: 8px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }
.p-5 { padding: 20px; }

/* Flexbox */
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.flex-column { flex-direction: column; }
.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.justify-content-end { justify-content: flex-end; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Display */
.d-none { display: none; }
.d-block { display: block; }

/* Border */
.border { border: 1px solid var(--gray-200); }
.border-top { border-top: 1px solid var(--gray-200); }
.border-bottom { border-bottom: 1px solid var(--gray-200); }
.rounded { border-radius: var(--radius); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadow */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Background */
.bg-white { background-color: white; }
.bg-gray-50 { background-color: var(--gray-50); }
.bg-gray-100 { background-color: var(--gray-100); }
.bg-primary { background-color: var(--primary); }
.bg-success { background-color: var(--success); }
.bg-warning { background-color: var(--warning); }
.bg-danger { background-color: var(--danger); }

/* Width/Height */
.w-full { width: 100%; }
.h-full { height: 100%; }

/* ----------------------------------------
   14. RESPONSIVE - MOBILE
   ---------------------------------------- */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 0px;
        --content-padding: 16px;
    }

    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-expanded);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar:hover {
        width: var(--sidebar-expanded);
    }

    .main-wrapper {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: flex !important;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .topbar-title {
        font-size: 1rem;
    }
}

@media (min-width: 769px) {
    .mobile-menu-btn {
        display: none !important;
    }

    .sidebar-overlay {
        display: none !important;
    }
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.sidebar-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* ----------------------------------------
   15. ANIMATIONS
   ---------------------------------------- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-fadeIn {
    animation: fadeIn 0.3s ease forwards;
}

.animate-slideIn {
    animation: slideIn 0.3s ease forwards;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* ----------------------------------------
   16. SCROLLBAR
   ---------------------------------------- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ----------------------------------------
   17. PAGE HEADER
   ---------------------------------------- */
.page-header {
    margin-bottom: 24px;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.page-subtitle {
    font-size: 0.9375rem;
    color: var(--gray-500);
}

/* ----------------------------------------
   18. EMPTY STATE
   ---------------------------------------- */
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--gray-400);
}

.empty-state-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.empty-state-text {
    color: var(--gray-500);
    margin-bottom: 24px;
}