:root {
    --primary-color: #03abfc;
    --secondary-color: #0388c7;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --medium-gray: #ddd;
    --dark-gray: #666;
}

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

/* Règles générales pour empêcher le scroll horizontal */
html, body {
    overflow-x: hidden;
    max-width: 100%;
    font-family: 'Montserrat', sans-serif;
}

body {
    color: var(--text-color);
    line-height: 1.6;
}

header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo span {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.3s;
}

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

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s;
    border: none;
    cursor: pointer;
}

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

/* Hero Section */
.hero {
    padding: 120px 0 60px;
    background-color: var(--light-gray);
    text-align: center;
}

.hero h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: var(--dark-gray);
}

.hero-img {
    max-width: 80%;
    height: auto;
    margin-top: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* Hero image desktop size enhancement */
@media screen and (min-width: 992px) {
    .hero-img {
        max-width: 95%;
        margin-top: 30px;
    }
    
    .hero-image-container {
        max-width: 800px;
        margin: 0 auto;
    }
}

/* Features Section */
.features {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 32px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.section-title p {
    color: var(--dark-gray);
    max-width: 700px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--dark-gray);
}

/* Screenshots Section */
.app-screenshots {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.screenshot {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.screenshot img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s;
}

.screenshot:hover img {
    transform: scale(1.05);
}

/* Security Section */
.security {
    padding: 80px 0;
    background-color: white;
}

.security .section-title h2 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 10px;
}

.security .section-title p {
    font-size: 20px;
    font-weight: 400;
    color: #86868b;
    margin-bottom: 50px;
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

.security-image img {
    width: 90%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.security-text h3 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.3;
}

.security-text p {
    font-size: 17px;
    color: #86868b;
    margin-bottom: 30px;
    line-height: 1.6;
    max-width: 90%;
}

.security-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.security-feature {
    display: flex;
    align-items: center;
}

.security-feature i {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    font-size: 16px;
    border-radius: 50%;
    margin-right: 15px;
}

.security-feature span {
    font-weight: 500;
    font-size: 17px;
    color: var(--text-color);
}

/* Contact Section */
.contact {
    padding: 80px 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.contact-info p {
    margin-bottom: 15px;
    color: var(--dark-gray);
    line-height: 1.7;
}

.contact-form {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

input, textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--medium-gray);
    border-radius: 5px;
    font-family: 'Montserrat', sans-serif;
    font-size: 15px;
    transition: border-color 0.3s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(3, 171, 252, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    font-size: 16px;
}

#form-message {
    margin-top: 15px;
    text-align: center;
}

/* Beta signup form */
.beta-signup-form {
    max-width: 500px;
    margin: 30px auto 0;
}

.beta-form-group {
    display: flex;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.beta-form-group input[type="email"] {
    flex: 1;
    border: 1px solid var(--medium-gray);
    border-right: none;
    border-radius: 5px 0 0 5px;
    padding: 12px 15px;
    font-size: 15px;
}

.beta-form-group .btn {
    border-radius: 0 5px 5px 0;
    padding: 0 20px;
    white-space: nowrap;
}

#beta-form-message {
    margin-top: 10px;
    text-align: center;
    min-height: 20px;
}

/* Social Media Section under Contact Form */
.social-section {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid var(--medium-gray);
    text-align: center;
}

.social-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-color);
    position: relative;
    display: inline-block;
}

.social-section h3:after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.social-section .social-links {
    margin-top: 25px;
}

/* Social Media Banner Section */
.social-banner {
    padding: 60px 0;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.social-banner-content {
    max-width: 800px;
    margin: 0 auto;
}

.social-banner h2 {
    font-size: 32px;
    margin-bottom: 15px;
    font-weight: 600;
}

.social-banner p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.social-banner .social-links {
    margin-top: 30px;
}

.social-banner .social-links a {
    width: 60px;
    height: 60px;
    background-color: white;
    color: var(--primary-color);
    font-size: 24px;
    border: none;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.social-banner .social-links a:hover {
    transform: translateY(-8px);
    background-color: white;
    color: var(--secondary-color);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer {
    background-color: var(--text-color);
    color: white;
    padding: 40px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
}

.footer-logo {
    max-width: 150px;
    margin-bottom: 20px;
}

.footer-logo img {
    width: 100%;
    height: auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-links a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px;
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* Social Media Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin: 10px 0 25px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    border-radius: 50%;
    color: white;
    font-size: 22px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    border: 2px solid transparent;
}

.social-links a:hover {
    background-color: white;
    color: var(--primary-color);
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.copyright {
    color: var(--medium-gray);
    font-size: 14px;
}

/* Responsive Breakpoints - Mobile Menu */
@media screen and (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
        background: none;
        border: none;
        width: 30px;
        height: 30px;
        position: relative;
        cursor: pointer;
        z-index: 10;
    }
    
    .mobile-menu-toggle span {
        display: block;
        width: 100%;
        height: 3px;
        background-color: #333;
        margin: 5px 0;
        transition: all 0.3s ease;
    }
    
    .mobile-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 250px;
        height: 100vh;
        background-color: #fff;
        box-shadow: -2px 0 5px rgba(0,0,0,0.1);
        display: flex;
        flex-direction: column;
        padding-top: 70px;
        transition: right 0.3s ease;
        z-index: 9;
    }
    
    .mobile-nav.active {
        right: 0;
    }
    
    .mobile-nav li {
        margin: 0;
        width: 100%;
    }
    
    .mobile-nav li a {
        display: block;
        padding: 15px 20px;
        text-align: left;
        font-size: 16px;
    }
    
    /* Hero responsive */
    .hero .container {
        display: flex;
        flex-direction: column;
        padding-top: 2rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
        line-height: 1.3;
        margin-bottom: 1rem;
    }
    
    .hero-img {
        margin-top: 1.5rem;
        max-width: 90%;
    }
    
    /* Beta form responsive */
    .beta-form-group {
        flex-direction: column;
        box-shadow: none;
    }
    
    .beta-form-group input[type="email"] {
        border-right: 1px solid var(--medium-gray);
        border-radius: 5px;
        margin-bottom: 10px;
    }
    
    .beta-form-group .btn {
        border-radius: 5px;
        width: 100%;
        padding: 12px;
    }
    
    /* Security section responsive */
    .security-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    /* Footer responsive */
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-links a {
        margin: 0;
        padding: 8px;
    }
}

@media screen and (max-width: 480px) {
    .hero h1 {
        font-size: 1.6rem;
    }
    
    .hero p {
        font-size: 0.95rem;
    }
}

@media screen and (min-width: 769px) {
    .contact-wrapper {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
    
    .contact-form, .responsive-form {
        width: 100%;
        max-width: none;
    }
}