/**
 * TECHHUB-CONSTRUCT - Styles Principaux
 * Feuille de style principale de l'application
 * Thème: Bleu ciel, Noir, Blanc, Orange
 * 
 * @package TechHub-Construct
 * @version 1.0
 * @since   Décembre 2025
 */

/* ============================================
   VARIABLES CSS
   ============================================ */
:root {
    --color-primary: #87CEEB;
    --color-primary-rgb: 135, 206, 235;
    --color-primary-dark: #6BB8D9;
    --color-secondary: #FF8C00;
    --color-secondary-rgb: 255, 140, 0;
    --color-secondary-dark: #E67E00;
    --color-text: #000000;
    --color-text-rgb: 0, 0, 0;
    --color-background: #FFFFFF;
    --color-light-bg: #F8F9FA;
    --color-border: #DEE2E6;
    --color-success: #28a745;
    --color-danger: #dc3545;
    --color-warning: #ffc107;
    --color-info: #17a2b8;
    --color-dark: #343a40;
    
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --transition: all 0.3s ease;
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

/* ============================================
   STYLES GÉNÉRAUX
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    /* overflow-x managed per-container so wide pages can scroll */
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--color-secondary-dark);
    text-decoration: none;
}

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

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    transition: var(--transition);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
}

.navbar-light .navbar-nav .nav-link {
    color: var(--color-text);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: var(--transition);
}

.navbar-light .navbar-nav .nav-link:hover {
    color: var(--color-secondary);
    transform: translateY(-2px);
}

.navbar-light .navbar-nav .nav-link.active {
    color: var(--color-primary);
}

/* ============================================
   BOUTONS
   ============================================ */
.btn {
    padding: 0.5rem 1.5rem;
    border-radius: 0.375rem;
    font-weight: 500;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--color-secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline-primary:hover {
    background-color: var(--color-primary);
    color: var(--color-text);
}

.btn-outline-secondary {
    border: 2px solid var(--color-secondary);
    color: var(--color-secondary);
}

.btn-outline-secondary:hover {
    background-color: var(--color-secondary);
    color: white;
}

/* ============================================
   CARTES
   ============================================ */
.card {
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.card-header {
    background-color: var(--color-light-bg);
    border-bottom: 2px solid var(--color-primary);
    font-weight: 600;
}

.card-title {
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

/* ============================================
   FORMULAIRES
   ============================================ */
.form-control:focus,
.form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.25rem rgba(135, 206, 235, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

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

.form-control.is-valid,
.form-select.is-valid {
    border-color: var(--color-success);
}

.invalid-feedback {
    display: block;
    color: var(--color-danger);
    font-size: 0.875rem;
}

.valid-feedback {
    display: block;
    color: var(--color-success);
    font-size: 0.875rem;
}

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

.table thead th {
    background-color: var(--color-primary);
    color: var(--color-text);
    font-weight: 600;
    border: none;
    text-transform: uppercase;
    font-size: 0.875rem;
    padding: 1rem;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background-color: rgba(135, 206, 235, 0.1);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.02);
}

/* DataTables personnalisé */
.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    color: var(--color-text) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--color-secondary) !important;
    border-color: var(--color-secondary) !important;
    color: white !important;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
    padding: 0.375rem 0.75rem;
    border-radius: 0.25rem;
    font-weight: 500;
}

/* ============================================
   ALERTES
   ============================================ */
.alert {
    border-radius: 0.5rem;
    border: none;
    box-shadow: var(--shadow-sm);
}

.alert-dismissible .btn-close {
    padding: 1rem;
}

/* ============================================
   DASHBOARD
   ============================================ */
.dashboard-card {
    border-left: 4px solid var(--color-primary);
    transition: var(--transition);
}

.dashboard-card:hover {
    border-left-color: var(--color-secondary);
    box-shadow: var(--shadow-lg);
}

.dashboard-card .card-body {
    padding: 1.5rem;
}

.dashboard-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.dashboard-icon.bg-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.dashboard-icon.bg-secondary {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
}

.dashboard-icon.bg-success {
    background: linear-gradient(135deg, var(--color-success), #1e7e34);
}

.dashboard-icon.bg-warning {
    background: linear-gradient(135deg, var(--color-warning), #d39e00);
}

.dashboard-icon.bg-danger {
    background: linear-gradient(135deg, var(--color-danger), #bd2130);
}

.dashboard-icon.bg-info {
    background: linear-gradient(135deg, var(--color-info), #117a8b);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
}

.stat-label {
    font-size: 0.875rem;
    color: #6c757d;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    min-height: calc(100vh - 56px);
    background-color: var(--color-dark);
    color: white;
    padding: 1.5rem 0;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.sidebar .nav-link:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--color-primary);
}

.sidebar .nav-link.active {
    color: white;
    background-color: rgba(135, 206, 235, 0.2);
    border-left-color: var(--color-primary);
}

.sidebar .nav-link i {
    width: 20px;
    margin-right: 0.5rem;
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
    background-color: transparent;
    padding: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--color-secondary);
}

.breadcrumb-item.active {
    color: var(--color-text);
    font-weight: 500;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--color-dark);
    color: white;
    margin-top: auto;
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

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

.footer h5 {
    color: var(--color-primary);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    padding: 5rem 0;
    color: var(--color-text);
}

.hero-section h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-section p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

/* ============================================
   SECTION
   ============================================ */
.section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #6c757d;
    text-align: center;
    margin-bottom: 3rem;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: 0 auto 3rem;
}

/* ============================================
   PRODUCT CARD
   ============================================ */
.product-card {
    height: 100%;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-card img {
    height: 200px;
    object-fit: cover;
    border-radius: 0.5rem 0.5rem 0 0;
}

.product-card .card-body {
    display: flex;
    flex-direction: column;
}

.product-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: 1rem;
}

/* ============================================
   CART
   ============================================ */
.cart-item {
    padding: 1rem;
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    transition: var(--transition);
}

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

.cart-summary {
    background-color: var(--color-light-bg);
    padding: 1.5rem;
    border-radius: 0.5rem;
    position: sticky;
    top: 80px;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination .page-link {
    color: var(--color-text);
    border-color: var(--color-border);
    transition: var(--transition);
}

.pagination .page-link:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text);
}

.pagination .page-item.active .page-link {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: white;
}

/* ============================================
   MODAL
   ============================================ */
.modal-header {
    background-color: var(--color-primary);
    color: var(--color-text);
}

.modal-header .btn-close {
    filter: invert(1);
}

/* ============================================
   LOADER
   ============================================ */
.loader {
    border: 4px solid var(--color-light-bg);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* ============================================
   SCROLL TO TOP
   ============================================ */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    background-color: var(--color-secondary);
    color: white;
    border: none;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.scroll-to-top:hover {
    background-color: var(--color-secondary-dark);
    transform: translateY(-5px);
}

.scroll-to-top.show {
    display: flex;
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-primary);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-secondary);
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
}

/* ============================================
   UTILITAIRES
   ============================================ */
.text-primary {
    color: var(--color-primary) !important;
}

.text-secondary {
    color: var(--color-secondary) !important;
}

.bg-primary-light {
    background-color: rgba(135, 206, 235, 0.1);
}

.bg-secondary-light {
    background-color: rgba(255, 140, 0, 0.1);
}

.border-primary {
    border-color: var(--color-primary) !important;
}

.border-secondary {
    border-color: var(--color-secondary) !important;
}

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

.hover-lift {
    transition: var(--transition);
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-in-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-in-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.6s ease-in-out;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .navbar,
    .sidebar,
    .footer,
    .btn,
    .no-print {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
    }
    
    .container {
        width: 100%;
        max-width: none;
    }
}