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

/* Variables CSS */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #cca300;
    --text-color: #333;
    --text-light: #666;
    --text-lighter: #999;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #2c3e50;
    --border-color: #e9ecef;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --max-width: 1200px;
    --section-padding: 80px 0;
}

/* Typographie de base */
body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

h1,
h2,
h3,
h4 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2.2rem;
    color: var(--primary-color);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 16px;
    color: var(--text-light);
}

/* Boutons */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

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

.btn-primary:hover {
    background-color: #d35400;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Header */
.header {
    background-color: var(--bg-color);
    box-shadow: var(--shadow-light);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    margin: 0;
    color: var(--primary-color);
}

.logo .highlight {
    color: var(--accent-color);
    font-weight: 300;
}

.nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--section-padding);
    background: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 32px;
    color: var(--text-light);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-image {
    text-align: center;
}

.placeholder-image {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--accent-color), #f39c12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: var(--shadow-medium);
}

.placeholder-image span {
    font-size: 6rem;
    opacity: 0.8;
}

/* Services Section */
.services {
    padding: var(--section-padding);
    background-color: var(--bg-light);
}

.services h2 {
    text-align: center;
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-color);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border-top: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-top-color: var(--accent-color);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 16px;
}

/* About Section */
.about {
    padding: var(--section-padding);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 8px;
}

.stat p {
    color: var(--text-light);
    margin: 0;
}

.about-image .placeholder-image {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
    background-color: var(--bg-light);
}

.contact h2 {
    text-align: center;
    margin-bottom: 60px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3,
.contact-form h3 {
    color: var(--primary-color);
    margin-bottom: 30px;
}

.contact-item {
    margin-bottom: 30px;
}

.contact-item strong {
    display: block;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.contact-item p {
    margin: 0;
    color: var(--text-light);
}

/* Formulaire */
.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Form Messages */
.form-messages {
    margin-bottom: 20px;
}

.form-message {
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    font-weight: 500;
    animation: slideIn 0.3s ease-out;
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    border-left: 4px solid #28a745;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-left: 4px solid #dc3545;
}

.form-message.success::before {
    content: "✓ ";
    font-weight: bold;
}

.form-message.error::before {
    content: "⚠ ";
    font-weight: bold;
}

/* Loading state for submit button */
.btn-primary:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.btn-primary:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Input validation states */
.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-group input.valid,
.form-group select.valid,
.form-group textarea.valid {
    border-color: #28a745;
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

/* Animation for form messages */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive adjustments for form messages */
@media (max-width: 480px) {
    .form-message {
        padding: 12px;
        font-size: 14px;
    }
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: 20px;
}

.footer-section p,
.footer-section ul {
    color: #bdc3c7;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 30px;
    text-align: center;
    color: #bdc3c7;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }

    .container {
        padding: 0 15px;
    }

    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-content h2 {
        font-size: 2.2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .placeholder-image {
        width: 200px !important;
        height: 200px !important;
    }

    .placeholder-image span {
        font-size: 4rem !important;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .service-card {
        padding: 30px 20px;
    }

    h2 {
        font-size: 1.8rem;
    }
}

/* Animation au défilement */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.service-card,
.stat,
.contact-item {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll smooth */
html {
    scroll-behavior: smooth;
}