/* ============================================
   ALM TELECOMS - CORPORATE DESIGN SYSTEM
   Design moderne, corporate et professionnel
   ============================================ */

:root {
    /* Colors - Corporate Palette */
    --primary: #D9531E;
    --primary-light: #E8764F;
    --primary-dark: #B84216;
    --primary-50: rgba(217, 83, 30, 0.05);
    --primary-100: rgba(217, 83, 30, 0.1);
    --primary-200: rgba(217, 83, 30, 0.2);
    
    --secondary: #111827;
    --secondary-light: #1F2937;
    --secondary-dark: #0A0E14;
    
    --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;
    
    /* Accent Colors */
    --success: #10B981;
    --success-light: #34D399;
    --warning: #F59E0B;
    --warning-light: #FBBF24;
    --error: #EF4444;
    --info: #3B82F6;
    
    /* Spacing Scale */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Shadows - Subtle and Professional */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   BASE STYLES
   ============================================ */

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    color: var(--gray-900);
    background-color: var(--gray-50);
    line-height: 1.6;
}

/* ============================================
   SIDEBAR - Corporate Design
   ============================================ */

.corporate-sidebar {
    background: linear-gradient(180deg, var(--secondary) 0%, var(--secondary-light) 100%);
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
}

.corporate-sidebar-header {
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
}

.corporate-sidebar-nav-link {
    position: relative;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    padding: 0.75rem 1rem;
    margin: 0.25rem 0.5rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    text-decoration: none;
}

.corporate-sidebar-nav-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(2px);
}

.corporate-sidebar-nav-link.active {
    color: white;
    background: linear-gradient(135deg, rgba(217, 83, 30, 0.2) 0%, rgba(217, 83, 30, 0.1) 100%);
    border-left: 3px solid var(--primary);
    box-shadow: 0 4px 12px rgba(217, 83, 30, 0.15);
}

.corporate-sidebar-nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--primary);
    border-radius: 0 2px 2px 0;
}

/* ============================================
   HEADER - Corporate Design
   ============================================ */

.corporate-header {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.corporate-header-title {
    font-weight: 600;
    font-size: var(--font-size-2xl);
    color: var(--secondary);
    letter-spacing: -0.02em;
}

/* ============================================
   CARDS - Corporate Design
   ============================================ */

.corporate-card {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    overflow: hidden;
    position: relative;
}

.corporate-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--gray-300);
}

.corporate-card-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--gray-100);
    background: linear-gradient(to bottom, rgba(249, 250, 251, 0.5) 0%, transparent 100%);
}

.corporate-card-body {
    padding: var(--spacing-xl);
}

.corporate-card-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--gray-100);
    background: var(--gray-50);
}

/* Stat Card */
.corporate-stat-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.corporate-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-color, var(--primary));
    transition: width var(--transition-base);
}

.corporate-stat-card:hover::before {
    width: 6px;
}

.corporate-stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--gray-300);
}

.corporate-stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--icon-bg, var(--primary-100));
    color: var(--icon-color, var(--primary));
}

.corporate-stat-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-600);
    margin-top: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.corporate-stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--secondary);
    margin-top: var(--spacing-xs);
    letter-spacing: -0.02em;
}

/* ============================================
   BUTTONS - Corporate Design
   ============================================ */

.corporate-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-decoration: none;
    letter-spacing: 0.01em;
}

.corporate-btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(217, 83, 30, 0.3);
}

.corporate-btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    box-shadow: 0 6px 16px rgba(217, 83, 30, 0.4);
    transform: translateY(-1px);
}

.corporate-btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.corporate-btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    transform: translateY(-1px);
}

.corporate-btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
}

.corporate-btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-base);
}

/* ============================================
   TABLES - Corporate Design
   ============================================ */

.corporate-table-wrapper {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.corporate-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.corporate-table thead {
    background: linear-gradient(to bottom, var(--gray-50) 0%, transparent 100%);
}

.corporate-table thead th {
    padding: 1rem 1.5rem;
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--gray-200);
}

.corporate-table tbody tr {
    transition: all var(--transition-fast);
    border-bottom: 1px solid var(--gray-100);
}

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

.corporate-table tbody td {
    padding: 1rem 1.5rem;
    color: var(--gray-900);
    font-size: var(--font-size-sm);
}

/* ============================================
   DATATABLES - Corporate Design
   ============================================ */

/* Wrapper principal */
.dataTables_wrapper {
    font-family: var(--font-family);
    position: relative;
}

/* Layout container - Top controls */
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter {
    margin-bottom: 1.5rem;
}

.dataTables_wrapper .row {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: 1rem !important;
    margin-bottom: 1.5rem !important;
}

/* Top row wrapper */
.dataTables_wrapper .row:first-child {
    background: var(--gray-50);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-lg);
    margin: -1.5rem -1.5rem 1.5rem -1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .dataTables_wrapper .row:first-child {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .dataTables_wrapper .dataTables_filter {
        margin-left: 0;
        width: 100%;
    }
    
    .dataTables_wrapper .dataTables_filter input {
        width: 100% !important;
    }
}

/* Labels */
.dataTables_wrapper .dataTables_length label,
.dataTables_wrapper .dataTables_filter label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gray-700) !important;
    font-weight: 600 !important;
    font-size: var(--font-size-sm) !important;
    margin: 0 !important;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Length (Show entries) à gauche */
.dataTables_wrapper .dataTables_length {
    order: 1;
}

/* Search input - Corporate Style (à droite) */
.dataTables_wrapper .dataTables_filter {
    margin-left: auto;
    order: 2;
}

.dataTables_wrapper .dataTables_filter input {
    padding: 0.625rem 1rem 0.625rem 2.75rem !important;
    border: 1px solid var(--gray-300) !important;
    border-radius: var(--radius-lg) !important;
    font-size: var(--font-size-sm) !important;
    font-weight: 500 !important;
    color: var(--gray-900) !important;
    background-color: white !important;
    transition: all var(--transition-base) !important;
    margin-left: 0.5rem !important;
    min-width: 250px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z'/%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: 0.75rem center !important;
    background-size: 1.25rem !important;
}

.dataTables_wrapper .dataTables_filter input:focus {
    outline: none !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(217, 83, 30, 0.1) !important;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23D9531E'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z'/%3E%3C/svg%3E") !important;
}

.dataTables_wrapper .dataTables_filter input::placeholder {
    color: var(--gray-400) !important;
}

/* Length select - Corporate Style */
.dataTables_wrapper .dataTables_length select {
    padding: 0.625rem 2.5rem 0.625rem 1rem !important;
    border: 1px solid var(--gray-300) !important;
    border-radius: var(--radius-lg) !important;
    font-size: var(--font-size-sm) !important;
    font-weight: 500 !important;
    color: var(--gray-900) !important;
    background-color: white !important;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: right 0.5rem center !important;
    background-size: 1.25rem !important;
    cursor: pointer !important;
    transition: all var(--transition-base) !important;
    margin: 0 0.5rem !important;
    appearance: none !important;
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
}

.dataTables_wrapper .dataTables_length select:focus {
    outline: none !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(217, 83, 30, 0.1) !important;
}

/* Table styling */
table.dataTable {
    border-collapse: separate !important;
    border-spacing: 0 !important;
    width: 100% !important;
    margin: 0 !important;
}

table.dataTable thead th {
    background: linear-gradient(to bottom, var(--gray-50) 0%, transparent 100%) !important;
    color: var(--gray-700) !important;
    font-weight: 600 !important;
    text-transform: uppercase;
    font-size: var(--font-size-xs) !important;
    letter-spacing: 0.05em !important;
    border-bottom: 2px solid var(--gray-200) !important;
    padding: 1rem 1.5rem !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
}

table.dataTable tbody td {
    padding: 1rem 1.5rem !important;
    border-bottom: 1px solid var(--gray-100) !important;
    color: var(--gray-900) !important;
    font-size: var(--font-size-sm) !important;
    vertical-align: middle !important;
}

table.dataTable tbody tr {
    transition: all var(--transition-fast) !important;
    background-color: white !important;
}

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

table.dataTable tbody tr.odd {
    background-color: white !important;
}

table.dataTable tbody tr.even {
    background-color: var(--gray-50) !important;
}

table.dataTable tbody tr.odd:hover,
table.dataTable tbody tr.even:hover {
    background-color: var(--gray-100) !important;
}

/* Pagination - Corporate Style */
.dataTables_wrapper .dataTables_paginate {
    margin-top: 1.5rem !important;
    display: flex !important;
    justify-content: flex-end !important;
    align-items: center !important;
    gap: 0.5rem !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    padding: 0.625rem 1rem !important;
    margin: 0 !important;
    border: 1px solid var(--gray-300) !important;
    border-radius: var(--radius-lg) !important;
    color: var(--gray-700) !important;
    background-color: white !important;
    transition: all var(--transition-base) !important;
    font-weight: 600 !important;
    font-size: var(--font-size-sm) !important;
    cursor: pointer !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 2.5rem !important;
    height: 2.5rem !important;
    text-decoration: none !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
    border-color: var(--primary) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(217, 83, 30, 0.3) !important;
    transform: translateY(-1px) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
    border-color: var(--primary) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(217, 83, 30, 0.3) !important;
    cursor: default !important;
    transform: none !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.disabled,
.dataTables_wrapper .dataTables_paginate .paginate_button.disabled:hover {
    opacity: 0.4 !important;
    cursor: not-allowed !important;
    background-color: var(--gray-100) !important;
    border-color: var(--gray-300) !important;
    color: var(--gray-400) !important;
    box-shadow: none !important;
    transform: none !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.previous,
.dataTables_wrapper .dataTables_paginate .paginate_button.next {
    font-weight: 600 !important;
}

/* Info - Corporate Style */
.dataTables_wrapper .dataTables_info {
    padding: 1rem 0 !important;
    color: var(--gray-600) !important;
    font-size: var(--font-size-sm) !important;
    font-weight: 500 !important;
    margin-top: 1rem !important;
}

/* Bottom wrapper */
.dataTables_wrapper .row:last-child {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

/* Processing overlay */
.dataTables_wrapper .dataTables_processing {
    background: linear-gradient(135deg, white 0%, var(--gray-50) 100%) !important;
    border: 1px solid var(--gray-300) !important;
    border-radius: var(--radius-xl) !important;
    padding: 1.5rem 2rem !important;
    box-shadow: var(--shadow-lg) !important;
    color: var(--gray-700) !important;
    font-weight: 600 !important;
    font-size: var(--font-size-sm) !important;
    backdrop-filter: blur(10px);
}

/* Empty state */
table.dataTable tbody tr td.dataTables_empty {
    padding: 3rem 1.5rem !important;
    text-align: center !important;
    color: var(--gray-500) !important;
    font-size: var(--font-size-base) !important;
}

/* Input fields in table */
table.dataTable input[type="number"],
table.dataTable input[type="text"] {
    border: 1px solid var(--gray-300) !important;
    border-radius: var(--radius-md) !important;
    padding: 0.5rem !important;
    font-size: var(--font-size-sm) !important;
    transition: all var(--transition-base) !important;
}

table.dataTable input[type="number"]:focus,
table.dataTable input[type="text"]:focus {
    outline: none !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(217, 83, 30, 0.1) !important;
}

/* ============================================
   BADGES - Corporate Design
   ============================================ */

.corporate-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    letter-spacing: 0.02em;
}

.corporate-badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.corporate-badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.corporate-badge-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.corporate-badge-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
}

/* ============================================
   GRADIENTS - Corporate
   ============================================ */

.corporate-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.corporate-gradient-secondary {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
}

.corporate-gradient-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
}

.corporate-gradient-info {
    background: linear-gradient(135deg, var(--info) 0%, #2563EB 100%);
}

/* ============================================
   ANIMATIONS - Subtle & Professional
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

.animate-slide-in-right {
    animation: slideInRight var(--transition-slow) ease-out;
}

/* ============================================
   UTILITIES
   ============================================ */

.text-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-corporate {
    box-shadow: var(--shadow-lg);
}

.border-corporate {
    border: 1px solid var(--gray-200);
}

/* Glassmorphism Effect */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Loading States */
.corporate-skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}