/* 
 * AuditExcellence - Feuille de style principale
 * Palette: #3F51B5 -> #00BCD4 (gradient principal)
 * Textes: #212121, #0D47A1 (headings)
 * Accents: #FF7043
 * Fond formulaire: #FAFAFA
 */

/* ---------- Reset & Base ---------- */
:root {
    --color-primary: #3F51B5;
    --color-primary-light: #00BCD4;
    --color-accent: #FF7043;
    --color-text: #212121;
    --color-heading: #0D47A1;
    --color-light: #FAFAFA;
    --color-grey: #BDBDBD;
    --color-dark-grey: #757575;
    --color-error: #e53935;
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Raleway', sans-serif;
    --shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --border-radius: 6px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    color: var(--color-heading);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--color-accent);
}

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

ul, ol {
    list-style: none;
}

p {
    margin-bottom: 1rem;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 5rem 0;
}

/* ---------- Typography ---------- */
h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

.section-title {
    text-align: center;
    margin-bottom: 0.5rem;
    position: relative;
    color: var(--color-heading);
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--color-accent);
    margin: 0.75rem auto 1.5rem;
    border-radius: 2px;
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    color: var(--color-dark-grey);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-primary);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

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

.btn-primary:hover {
    background-color: #E65100;
    color: white;
}

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

.btn-secondary:hover {
    background-color: #303F9F;
    color: white;
}

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

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

/* ---------- Header & Navigation ---------- */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: white;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    display: block;
}

.main-nav .nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.main-nav a {
    color: var(--color-text);
    font-weight: 500;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary-light);
    transition: var(--transition);
}

.main-nav a:hover::after, 
.main-nav a:focus::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-text);
    margin: 5px 0;
    transition: var(--transition);
}

/* ---------- Hero Section ---------- */
.hero-section {
    background: url('./img/hjMcaR.jpg') no-repeat center center;
    background-size: cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: white;
    padding-top: 5rem;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(63, 81, 181, 0.85) 0%, rgba(0, 188, 212, 0.85) 100%);
}

.hero-section .container {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-content {
    width: 100%;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    justify-content: center;
}

/* ---------- About Section ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-content p:first-child {
    font-size: 1.2rem;
    color: var(--color-primary);
    font-weight: 500;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    background: white;
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--color-dark-grey);
}

/* ---------- Advantages Section ---------- */
.advantages-section {
    background-color: var(--color-light);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 2rem;
}

.advantage-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.advantage-card h3 {
    margin-bottom: 0.75rem;
}

/* ---------- Services Section ---------- */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.service-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.service-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.service-content {
    padding: 2rem;
}

.service-content h3 {
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.service-features {
    margin: 1.5rem 0;
}

.service-features li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* ---------- Testimonials Section ---------- */
.testimonials-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
}

.testimonials-section .section-title,
.testimonials-section .section-intro {
    color: white;
}

.testimonials-section .section-title::after {
    background: white;
}

.testimonials-slider {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding: 1rem 0.5rem;
    margin: 0 -0.5rem;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.testimonial-card {
    flex: 0 0 calc(33.333% - 2rem);
    min-width: 300px;
    scroll-snap-align: start;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.testimonial-rating {
    color: var(--color-accent);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-card blockquote {
    font-style: italic;
    margin-bottom: 1.5rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-info cite {
    font-style: normal;
    font-weight: 600;
    display: block;
}

.author-info span {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ---------- Contact Section ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-method svg {
    margin-right: 0.5rem;
    display: inline-block;
    vertical-align: middle;
}

.contact-method p {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.contact-hours ul li {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px dashed var(--color-grey);
    padding: 0.5rem 0;
}

.contact-form-container {
    background: var(--color-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 0.5rem;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-grey);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    background-color: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(63, 81, 181, 0.2);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
}

.required {
    color: #e53935;
}

/* ---------- FAQ Section ---------- */
.faq-section {
    background-color: var(--color-light);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
}

.faq-item {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    position: relative;
    font-size: 1.2rem;
    background: white;
    color: var(--color-heading);
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: rgba(63, 81, 181, 0.05);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--color-text);
}

/* ---------- Footer ---------- */
.main-footer {
    background: linear-gradient(135deg, #1A237E 0%, #0D47A1 100%);
    color: white;
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-info p {
    margin-top: 1.5rem;
    opacity: 0.8;
}

.footer-contact a,
.footer-links a,
.footer-legal a {
    color: white;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-contact a:hover,
.footer-links a:hover,
.footer-legal a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.main-footer h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.main-footer h3::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--color-accent);
}

.footer-links ul,
.footer-legal ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* ---------- Cookie Popup ---------- */
.cookie-popup {
    position: fixed;
    bottom: -100%;
    left: 0;
    right: 0;
    background: white;
    padding: 1.5rem;
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: bottom 0.5s ease-in-out;
}

.cookie-popup.show {
    bottom: 0;
}

.cookie-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.cookie-content p {
    margin: 0;
    flex: 1;
}

.cookie-buttons {
    display: flex;
    gap: 0.75rem;
}

/* ---------- Responsive Design ---------- */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }
    
    .hero-section .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .service-card {
        grid-template-columns: 1fr;
    }
    
    .service-card img {
        height: 250px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .cookie-content {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {
    section {
        padding: 4rem 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 1000;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .about-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stat-item {
        padding: 1rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-card {
        min-width: calc(100% - 2rem);
    }
}

/* Styles pour les messages d'erreur du formulaire */
.form-errors {
    background-color: rgba(229, 57, 53, 0.1);
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--color-error);
    border-radius: 4px;
}

.form-errors ul {
    margin: 0;
    padding-left: 1.5rem;
    list-style-type: disc;
}

.form-errors li {
    color: var(--color-error);
    margin-bottom: 0.25rem;
}

input:invalid, 
select:invalid,
textarea:invalid {
    border-color: var(--color-error);
    box-shadow: 0 0 0 2px rgba(229, 57, 53, 0.2);
}