:root {
    --primary-color: #1A5276; /* Bleu médical premium */
    --primary-light: #2980B9;
    --accent-color: #E67E22; /* Orange vif pour l'action */
    --text-color: #2C3E50;
    --bg-color: #F8F9FA;
    --white: #FFFFFF;
    --border-radius: 12px;
    --font-family: 'Inter', 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    font-size: 18px; /* Grand texte pour lisibilité sénior */
}

/* Header & Navigation (Sticky) */
header {
    background-color: var(--white);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 20px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 40px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 18px;
    padding: 10px 15px;
    border-radius: var(--border-radius);
    transition: background-color 0.3s;
}

nav ul li a:hover, nav ul li a.active {
    background-color: var(--primary-light);
    color: var(--white);
}

/* Layout général */
main {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.hero {
    display: flex;
    flex-direction: column-reverse;
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    margin-bottom: 50px;
}

@media (min-width: 768px) {
    .hero {
        flex-direction: row;
    }
}

.hero-content {
    padding: 40px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-image {
    flex: 1;
    background-image: url('hero.jpg');
    background-size: cover;
    background-position: center;
    min-height: 300px;
}

/* Typography SEO */
h1 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

h2 {
    font-size: 28px;
    color: var(--primary-color);
    margin-top: 40px;
    margin-bottom: 20px;
    border-bottom: 3px solid var(--primary-light);
    display: inline-block;
    padding-bottom: 5px;
}

h3 {
    font-size: 24px;
    color: var(--text-color);
    margin-top: 30px;
    margin-bottom: 15px;
}

p {
    margin-bottom: 20px;
}

/* Buttons (Large for touch devices) */
.btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    padding: 18px 30px;
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
    margin-top: 10px;
    min-width: 250px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}

/* Script Container (Formulaire Lead) */
.lead-form-container {
    background-color: #EAF2F8;
    padding: 30px;
    border-radius: var(--border-radius);
    border: 2px solid var(--primary-light);
    margin: 40px 0;
    text-align: center;
}

.lead-form-container h3 {
    margin-top: 0;
    color: var(--primary-color);
}

/* Grids & Cards */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 30px;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    text-align: center;
}

.card h3 {
    color: var(--primary-light);
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 40px 20px;
    margin-top: 60px;
}

footer a {
    color: var(--white);
    text-decoration: underline;
}

/* Responsive fixes for tablets and mobiles */
@media (max-width: 767px) {
    .nav-container {
        flex-direction: column;
        gap: 15px;
    }
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    h1 {
        font-size: 28px;
    }
    .btn {
        width: 100%;
        padding: 20px;
    }
}

/* Floating Click-to-Call Button */
.floating-call-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #27AE60; /* Vert confiance */
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    font-size: 20px;
    font-weight: bold;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    z-index: 1001;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.2s;
}
.floating-call-btn:hover {
    transform: scale(1.05);
}

/* Trust Badges */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.trust-badge {
    background: white;
    border: 1px solid var(--primary-light);
    padding: 10px 15px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Reviews Section */
.reviews-section {
    margin-top: 60px;
    text-align: center;
}
.review-card {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    margin: 15px;
    display: inline-block;
    width: 300px;
    text-align: left;
    vertical-align: top;
}
.stars {
    color: #F1C40F;
    font-size: 20px;
    margin-bottom: 10px;
}
.review-author {
    font-weight: bold;
    color: var(--primary-color);
    margin-top: 10px;
}

/* Breadcrumbs */
.breadcrumb {
    font-size: 14px;
    color: #7F8C8D;
    margin-bottom: 20px;
}
.breadcrumb a {
    color: var(--primary-light);
    text-decoration: none;
}
.breadcrumb a:hover {
    text-decoration: underline;
}