/* Variables et reset */
:root {
    --primary-color: #8f44ad;
    --secondary-color: #7d3c98;
    --accent-color: #e74c3c;
    --text-color: #333333;
    --light-text: #ffffff;
    --background: #ffffff;
    --section-bg: #f5f5f5;
    --card-bg: #ffffff;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background);
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2rem;
    position: relative;
    padding-bottom: 0.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

h2:after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

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

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

/* Header */
header {
    background-color: var(--background);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo a {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.logo-svg {
    margin-right: 10px;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 2rem;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 500;
}

nav ul li a:hover {
    color: var(--primary-color);
}

/* Section Héro */
.hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--light-text);
    text-align: center;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.hero h1 {
    color: var(--light-text);
    font-size: 3rem;
    margin-bottom: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero .subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Boutons d'appel à l'action */
.cta-button {
    margin-top: 2rem;
    text-align: center;
}

.cta {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--light-text);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    box-shadow: 0 4px 10px rgba(231, 76, 60, 0.3);
}

.cta:hover {
    background-color: #c0392b;
    color: var(--light-text);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(231, 76, 60, 0.4);
}

/* Sections génériques */
section {
    padding: 6rem 0;
}

section:nth-child(even) {
    background-color: var(--section-bg);
}

/* Fonctionnalités */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    margin-bottom: 1.5rem;
}

/* Comment ça marche */
.steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.step-number {
    background-color: var(--primary-color);
    color: var(--light-text);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* Avantages */
.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit {
    padding: 1.5rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.benefit:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

/* Section CTA */
.cta-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--light-text);
    text-align: center;
    padding: 5rem 0;
}

.cta-section h2 {
    color: var(--light-text);
}

.cta-section h2:after {
    background-color: var(--light-text);
}

.cta-section p {
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
footer {
    background-color: #222;
    color: #ddd;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo-svg {
    margin-bottom: 1rem;
}

footer h4 {
    color: var(--light-text);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

footer ul {
    list-style: none;
}

footer ul li {
    margin-bottom: 0.75rem;
}

footer a {
    color: #bbb;
}

footer a:hover {
    color: var(--light-text);
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 2rem;
    text-align: center;
    font-size: 0.9rem;
    color: #999;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero {
        padding: 4rem 0;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    nav {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--background);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: 0.5s;
        z-index: 999;
    }
    
    nav.active {
        right: 0;
    }
    
    nav ul {
        flex-direction: column;
        padding: 2rem;
    }
    
    nav ul li {
        margin: 1.5rem 0;
    }
    
    .mobile-menu {
        display: block;
        cursor: pointer;
    }
    
    .feature-grid,
    .benefits-list {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-logo {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        width: 95%;
        padding: 0 10px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .feature-card,
    .benefit {
        padding: 1.5rem 1rem;
    }
}

@media (min-width: 769px) {
    .mobile-menu {
        display: none;
    }
}