/*
* Yao Lift Services - Style principal
* Version: 1.0
* Description: CSS complet pour le site de Yao Lift Services
*/

@import url('bouton.css');

/* ======= Variables CSS ======= */
:root {
    /* Couleurs principales */
    --bs-primary: #2B5797;
    --bs-primary-rgb: 43, 87, 151;
    --bs-secondary: #FF6B00;
    --bs-secondary-rgb: 255, 107, 0;
    --bs-accent: #FFC107;
    --bs-accent-rgb: 255, 193, 7;
    --bs-success: #28a745;
    --bs-success-rgb: 40, 167, 69;
    --bs-info: #17a2b8;
    --bs-info-rgb: 23, 162, 184;
    --bs-warning: #ffc107;
    --bs-warning-rgb: 255, 193, 7;
    --bs-danger: #dc3545;
    --bs-danger-rgb: 220, 53, 69;
    
    /* Couleurs neutres */
    --bs-dark: #333333;
    --bs-dark-rgb: 51, 51, 51;
    --bs-gray: #6c757d;
    --bs-gray-rgb: 108, 117, 125;
    --bs-gray-100: #f8f9fa;
    --bs-gray-200: #e9ecef;
    --bs-gray-300: #dee2e6;
    --bs-gray-400: #ced4da;
    --bs-gray-500: #adb5bd;
    --bs-gray-600: #6c757d;
    --bs-gray-700: #495057;
    --bs-gray-800: #343a40;
    --bs-gray-900: #212529;
    --bs-light: #f8f9fa;
    --bs-light-rgb: 248, 249, 250;
    --bs-white: #ffffff;
    --bs-white-rgb: 255, 255, 255;
    
    /* Typographie */
    --bs-font-sans-serif: 'Roboto', system-ui, -apple-system, "Segoe UI", sans-serif;
    --bs-font-monospace: SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    --bs-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0));
    
    /* Spacing */
    --bs-gutter-x: 1.5rem;
    --bs-gutter-y: 0;
    
    /* Transitions et animations */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    
    /* Ombres */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 15px 35px rgba(0, 0, 0, 0.1);
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Font weights */
    --fw-light: 300;
    --fw-normal: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;
    --fw-black: 900;
}

/* ======= Reset & Base Styles ======= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--bs-font-sans-serif);
    color: var(--bs-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--bs-white);
}

/* Amélioration de la lisibilité */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', var(--bs-font-sans-serif);
    font-weight: var(--fw-semibold);
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--bs-dark);
}

p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

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

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

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

/* ======= Utility Classes ======= */
.fw-light { font-weight: var(--fw-light); }
.fw-normal { font-weight: var(--fw-normal); }
.fw-medium { font-weight: var(--fw-medium); }
.fw-semibold { font-weight: var(--fw-semibold); }
.fw-bold { font-weight: var(--fw-bold); }
.fw-black { font-weight: var(--fw-black); }

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

.bg-primary { background-color: var(--bs-primary) !important; }
.bg-secondary { background-color: var(--bs-secondary) !important; }
.bg-accent { background-color: var(--bs-accent) !important; }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

/* ======= Section Titles ======= */
.section-title {
    font-size: 2.5rem;
    font-weight: var(--fw-bold);
    color: var(--bs-primary);
    position: relative;
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--bs-secondary);
    border-radius: 2px;
}

.section-title.text-start::after {
    left: 0;
    transform: none;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--bs-gray-600);
    margin-bottom: 0;
}

/* ======= Header & Navigation ======= */
.navbar {
    background: var(--bs-white);
    box-shadow: var(--shadow-md);
    padding: 0.5rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.navbar-brand img {
    height: 50px;
    width: auto;
    transition: var(--transition-base);
}

.navbar-nav .nav-link {
    font-weight: var(--fw-medium);
    color: var(--bs-dark);
    padding: 0.75rem 1rem;
    position: relative;
    transition: var(--transition-base);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--bs-secondary);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    transition: var(--transition-base);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-item.active .nav-link {
    color: var(--bs-secondary);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-item.active .nav-link::after {
    width: 80%;
}

.navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2833, 37, 41, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ======= Preloader ======= */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bs-white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--bs-gray-300);
    border-top: 4px solid var(--bs-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ======= Cards ======= */
.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-base);
}

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

.card-header {
    background: var(--bs-gray-100);
    border-bottom: 1px solid var(--bs-gray-200);
    font-weight: var(--fw-semibold);
}

/* ======= Buttons (extended) ======= */
.btn {
    border-radius: var(--radius-md);
    font-weight: var(--fw-medium);
    padding: 0.6rem 1.5rem;
    border: 2px solid transparent;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
}

/* ======= Forms ======= */
.form-control,
.form-select {
    border: 2px solid var(--bs-gray-300);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-primary-rgb), 0.25);
}

.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--bs-danger);
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-danger-rgb), 0.25);
}

.form-control.is-valid,
.form-select.is-valid {
    border-color: var(--bs-success);
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-success-rgb), 0.25);
}

.form-label {
    font-weight: var(--fw-medium);
    color: var(--bs-dark);
    margin-bottom: 0.5rem;
}

.form-check-input:checked {
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}

.form-text {
    font-size: 0.875rem;
    color: var(--bs-gray-600);
}

/* ======= Alerts ======= */
.alert {
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    border-left: 4px solid;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-left-color: var(--bs-success);
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border-left-color: var(--bs-danger);
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border-left-color: var(--bs-warning);
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border-left-color: var(--bs-info);
}

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

.table thead th {
    background: var(--bs-gray-100);
    border-top: none;
    border-bottom: 2px solid var(--bs-gray-300);
    font-weight: var(--fw-semibold);
    color: var(--bs-dark);
}

.table-striped tbody tr:nth-of-type(odd) {
    background: rgba(var(--bs-gray-100), 0.5);
}

.table-hover tbody tr:hover {
    background: rgba(var(--bs-primary-rgb), 0.05);
}

/* ======= Pagination ======= */
.pagination .page-link {
    border: none;
    color: var(--bs-primary);
    padding: 0.5rem 1rem;
    margin: 0 0.125rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.pagination .page-link:hover,
.pagination .page-item.active .page-link {
    background: var(--bs-primary);
    color: var(--bs-white);
}

/* ======= Accordions ======= */
.accordion-item {
    border: 1px solid var(--bs-gray-300);
    border-radius: var(--radius-lg) !important;
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-button {
    font-weight: var(--fw-medium);
    padding: 1.25rem 1.5rem;
    border: none;
    background: var(--bs-white);
    border-radius: 0;
}

.accordion-button:not(.collapsed) {
    background: var(--bs-gray-100);
    color: var(--bs-primary);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border: none;
}

.accordion-body {
    padding: 1.5rem;
    background: var(--bs-white);
}

/* ======= Modals ======= */
.modal-content {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    border-bottom: 1px solid var(--bs-gray-200);
    padding: 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--bs-gray-200);
    padding: 1.5rem;
}

/* ======= Progress Bars ======= */
.progress {
    height: 8px;
    border-radius: var(--radius-md);
    background: var(--bs-gray-200);
}

.progress-bar {
    border-radius: var(--radius-md);
    background: linear-gradient(90deg, var(--bs-primary), var(--bs-secondary));
    transition: width 0.6s ease;
}

/* ======= Badges ======= */
.badge {
    font-weight: var(--fw-medium);
    padding: 0.5em 0.75em;
    border-radius: var(--radius-md);
}

/* ======= Breadcrumbs ======= */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--bs-gray-500);
    content: "›";
    font-size: 1.2rem;
}

.breadcrumb-item a {
    color: var(--bs-gray-600);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--bs-primary);
}

.breadcrumb-item.active {
    color: var(--bs-primary);
    font-weight: var(--fw-medium);
}

/* ======= Utilities ======= */
.text-gradient {
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient {
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
}

.position-relative {
    position: relative !important;
}

.position-absolute {
    position: absolute !important;
}

.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }

.d-flex { display: flex !important; }
.flex-column { flex-direction: column !important; }
.flex-row { flex-direction: row !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.align-items-center { align-items: center !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }

.text-center { text-align: center !important; }
.text-start { text-align: left !important; }
.text-end { text-align: right !important; }

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

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

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

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

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.animate-fadeIn { animation: fadeIn 0.6s ease-out; }
.animate-fadeInUp { animation: fadeInUp 0.6s ease-out; }
.animate-fadeInDown { animation: fadeInDown 0.6s ease-out; }
.animate-fadeInLeft { animation: fadeInLeft 0.6s ease-out; }
.animate-fadeInRight { animation: fadeInRight 0.6s ease-out; }
.animate-scaleIn { animation: scaleIn 0.6s ease-out; }
.animate-pulse { animation: pulse 2s infinite; }

/* ======= Responsive Design ======= */
@media (max-width: 1200px) {
    .section-title {
        font-size: 2.25rem;
    }
}

@media (max-width: 992px) {
    .section-title {
        font-size: 2rem;
    }
    
    .navbar-nav {
        padding: 1rem 0;
        background: var(--bs-white);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-lg);
        margin-top: 1rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 1.5rem;
        border-bottom: 1px solid var(--bs-gray-200);
    }
    
    .navbar-nav .nav-link:last-child {
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 0.95rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .btn {
        padding: 0.5rem 1.25rem;
        font-size: 0.95rem;
    }
    
    .btn-lg {
        padding: 0.65rem 1.75rem;
        font-size: 1rem;
    }
    
    .form-control,
    .form-select {
        padding: 0.65rem 0.9rem;
        font-size: 0.95rem;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 1.5rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .modal-dialog {
        margin: 1rem;
    }
    
    .btn-block-sm {
        display: block;
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

/* ======= Print Styles ======= */
@media print {
    .navbar,
    .btn,
    .alert,
    #preloader,
    .modal,
    .dropdown {
        display: none !important;
    }
    
    .container,
    .container-fluid {
        width: 100% !important;
        max-width: none !important;
    }
    
    .card {
        border: 1px solid #ddd !important;
        box-shadow: none !important;
    }
    
    .text-primary,
    .text-secondary {
        color: #000 !important;
    }
    
    .bg-primary,
    .bg-secondary {
        background: #fff !important;
        color: #000 !important;
    }
}

/* ======= Accessibility ======= */
@media (prefers-reduced-motion: reduce) {
    *,
    ::before,
    ::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.form-control:focus,
.form-select:focus,
.form-check-input:focus {
    outline: 2px solid var(--bs-primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card,
    .btn,
    .form-control,
    .form-select {
        border-width: 2px;
    }
}

/* ======= Scrollbar personnalisée ======= */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bs-gray-400);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--bs-gray-500);
}

/* ======= Selection personnalisée ======= */
::selection {
    background: rgba(var(--bs-primary-rgb), 0.2);
    color: var(--bs-dark);
}

::-moz-selection {
    background: rgba(var(--bs-primary-rgb), 0.2);
    color: var(--bs-dark);
}