/* style.css */
:root {
    --color-bg: #F4F7F6;
    --color-surface: #FFFFFF;
    --color-primary: #1A535C;
    --color-secondary: #4ECDC4;
    --color-accent: #FF6B6B;
    --color-text: #333333;
    --color-text-light: #6c757d;
    --color-border: #e0e0e0;

    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    --spacing-1: 8px;
    --spacing-2: 16px;
    --spacing-3: 24px;
    --spacing-4: 32px;
    --spacing-5: 48px;

    --border-radius: 12px;
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7; /* Modifié: Plus d'espace pour le texte du corps */
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-weight: 700;
    line-height: 1.2; /* Ajouté: Line-height plus serré pour les titres */
}

a {
    text-decoration: none;
    color: inherit;
}

/* Header */
.main-header {
    background-color: var(--color-surface);
    box-shadow: var(--box-shadow);
    padding: var(--spacing-2) var(--spacing-4);
    position: sticky;
    top: 0;
    z-index: 100;
}

.main-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding-top: var(--spacing-3);
    padding-bottom: var(--spacing-3);
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-4);
}

.nav-links li a {
    padding: var(--spacing-1) 0;
    position: relative;
    font-weight: 600;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width 0.3s ease;
}

.nav-links li a:hover::after {
    width: 100%;
}

/* Style du bouton "Se connecter" dans la navbar, similaire au bouton principal */
.nav-links li:last-child a { /* Sélectionne le dernier lien (Se connecter) */
    background-color: var(--color-secondary);
    color: white;
    font-weight: 600;
    padding: 14px 40px;
    border-radius: 50px;
    display: inline-block;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 10px rgba(78, 205, 196, 0.3);
    font-size: 1.1rem;
}

.nav-links li:last-child a:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(78, 205, 196, 0.4);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #e0f2f1, #ffffff);
    padding: var(--spacing-5) var(--spacing-2);
    text-align: center;
    margin-bottom: var(--spacing-5);
}

.hero h1 {
    font-size: 3rem;
    max-width: 900px;
    margin: 0 auto var(--spacing-4);
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-4);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    background-color: var(--color-secondary);
    color: white;
    font-weight: 600;
    padding: 14px 40px;
    border-radius: 50px;
    display: inline-block;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 10px rgba(78, 205, 196, 0.3);
    font-size: 1.1rem;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(78, 205, 196, 0.4);
}

/* Features Overview */
.features-overview {
    max-width: 1200px;
    margin: 0 auto var(--spacing-5);
    padding: 0 var(--spacing-3);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-4);
}

.feature-card {
    background-color: var(--color-surface);
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-3);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-2);
    color: var(--color-primary);
}

.feature-card p {
    font-size: 1rem;
    color: var(--color-text-light);
}

/* Detailed Features */
.detailed-features {
    margin-bottom: var(--spacing-5);
}

.feature-block {
    display: flex;
    align-items: center;
    gap: var(--spacing-5);
    padding: var(--spacing-5) var(--spacing-4);
    background-color: var(--color-surface);
    margin-bottom: var(--spacing-3);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    border-radius: var(--border-radius);
}

.feature-block:nth-child(even) {
    flex-direction: row-reverse;
    background-color: var(--color-bg);
}

.feature-block .text-content {
    flex: 1;
}

.feature-block .text-content h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-3);
}

.feature-block .text-content p {
    color: var(--color-text-light);
    line-height: 1.8;
    font-size: 1.1rem;
}

.feature-block .image-content {
    flex: 1;
    text-align: center;
    padding: var(--spacing-2);
}

.feature-block img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Testimonials */
.testimonials {
    background-color: var(--color-bg);
    padding: var(--spacing-5) var(--spacing-4);
    text-align: center;
    margin-bottom: var(--spacing-5);
}

.testimonials h2 {
    margin-bottom: var(--spacing-3);
    font-size: 2.2rem;
}

.rating {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-2);
}

.rating span {
    font-size: 1.2rem;
    color: var(--color-text-light);
}

.testimonial-grid {
    display: flex;
    gap: var(--spacing-3);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-5);
}

.testimonial-card {
    background-color: var(--color-surface);
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    max-width: 350px;
    text-align: left;
    margin-bottom: var(--spacing-3);
}

.testimonial-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2);
}

.testimonial-header h4 {
    font-size: 1.1rem;
    margin-bottom: 0;
}

.stars {
    color: #FFD700;
    font-size: 0.9rem;
}

.testimonial-card p {
    font-size: 1rem;
    margin-bottom: var(--spacing-3);
}

.testimonial-footer {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

/* News */
.news {
    max-width: 1200px;
    margin: 0 auto var(--spacing-5);
    padding: 0 var(--spacing-3);
}

.news h2 {
    text-align: center;
    margin-bottom: var(--spacing-5);
    font-size: 2.2rem;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-4);
}

.news-card {
    background-color: var(--color-surface);
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
}

.news-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-3);
}

.news-card p {
    font-size: 1rem;
    color: var(--color-text-light);
}

/* FAQ */
.faq {
    max-width: 800px;
    margin: 0 auto var(--spacing-5);
    padding: 0 var(--spacing-3);
}

.faq h2 {
    text-align: center;
    margin-bottom: var(--spacing-5);
    font-size: 2.2rem;
}

.faq-item {
    margin-bottom: var(--spacing-3);
    border-bottom: 1px solid var(--color-border);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3) 0;
    background: none;
    border: none;
    text-align: left;
    font-family: var(--font-body);
    font-size: 1.1rem;
    color: var(--color-primary);
    cursor: pointer;
    font-weight: 600;
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding-bottom: var(--spacing-3);
    color: var(--color-text-light);
    font-size: 1rem;
}

.faq-item.active .faq-answer {
    display: block;
}

.see-all {
    display: block;
    text-align: center;
    margin-top: var(--spacing-3);
    color: var(--color-secondary);
    font-weight: 600;
    font-size: 1.1rem;
    padding: var(--spacing-2);
}

/* Footer */
.main-footer {
    background-color: var(--color-primary);
    color: white;
    padding: var(--spacing-5) var(--spacing-3);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-direction: row;
}

.footer-links {
    display: flex;
    gap: var(--spacing-4);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
    font-weight: 500;
}

.footer-links a:hover {
    color: white;
}

.social-icons {
    display: flex;
    gap: var(--spacing-2);
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: background-color 0.3s ease;
    font-size: 1.1rem;
}

.social-icons a:hover {
    background-color: var(--color-secondary);
}

/* Responsive */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.8rem;
    }

    .detailed-features .feature-block {
        padding: var(--spacing-4);
    }

    .detailed-features .feature-block .text-content h3 {
        font-size: 1.6rem;
    }
}

@media (max-width: 768px) {
    .main-header nav {
        flex-direction: column;
        align-items: flex-start;
    }

    .logo {
        margin-bottom: var(--spacing-2);
    }

    .nav-links {
        display: none; /* Garde les liens de navigation cachés pour l'instant, ou implémente un menu mobile */
    }

    .hero h1 {
        font-size: 2.2rem;
        margin-bottom: var(--spacing-3);
    }

    .hero p {
        font-size: 1rem;
    }

    .cta-button {
        padding: 10px 24px;
        font-size: 1rem;
    }

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

    .feature-card {
        padding: var(--spacing-3);
    }

    .feature-card i {
        font-size: 2rem;
        margin-bottom: var(--spacing-2);
    }

    .feature-block {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-4) var(--spacing-3);
    }

    .feature-block:nth-child(even) {
        flex-direction: column;
    }

    .feature-block .text-content {
        margin-bottom: var(--spacing-3);
    }

    .feature-block .text-content h3 {
        font-size: 1.3rem;
    }

    .testimonial-grid {
        flex-direction: column;
        align-items: center;
    }

    .testimonial-card {
        max-width: 90%;
    }

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

    .faq-question {
        font-size: 1rem;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-3);
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-2);
    }
}

@media (max-width: 480px) {
    /* Ajustements supplémentaires pour les très petits écrans */
    .main-header {
        padding: var(--spacing-2);
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 0.9rem;
    }

    .cta-button {
        padding: 8px 20px;
        font-size: 0.9rem;
    }

    .features-overview, .news, .faq {
        padding: 0 var(--spacing-2);
    }

    .detailed-features .feature-block {
        padding: var(--spacing-3) var(--spacing-2);
    }

    .detailed-features .feature-block .text-content h3 {
        font-size: 1.2rem;
    }

    .detailed-features .feature-block .text-content p {
        font-size: 0.9rem;
    }

    .testimonials {
        padding: var(--spacing-4) var(--spacing-2);
    }

    .rating {
        font-size: 2.5rem;
    }

    .testimonial-card {
        padding: var(--spacing-3);
    }

    .news-card h3 {
        font-size: 1.1rem;
    }

    .news-card p {
        font-size: 0.85rem;
    }

    .faq-question {
        font-size: 0.95rem;
    }

    .faq-answer p {
        font-size: 0.85rem;
    }

    .main-footer {
        padding: var(--spacing-3) var(--spacing-2);
    }
}