/* Reset léger */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
        sans-serif;
    line-height: 1.6;
    color: #1f2933; /* gris foncé */
    background-color: #f5f7fb; /* fond léger */
}

/* Layout de base */

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */

.site-header {
    border-bottom: 1px solid #e1e5ee;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 0;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.logo-mark {
    text-transform: uppercase;
    font-size: 0.95rem;
    padding: 0.1rem 0.3rem;
    border-radius: 999px;
    border: 1px solid #2563eb;
}

.logo-text {
    font-size: 0.95rem;
    text-transform: lowercase;
    color: #4b5563;
}

.main-nav {
    display: flex;
    gap: 1rem;
}

.main-nav a {
    text-decoration: none;
    font-size: 0.9rem;
    color: #4b5563;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.main-nav a:hover {
    background-color: #2563eb;
    color: #ffffff;
}

/* Hero */

.hero {
    padding: 3rem 0 2.5rem;
}

.hero-content {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 2.5fr);
    gap: 2.5rem;
    align-items: center;
}

.hero-text h1 {
    font-size: clamp(2.1rem, 3vw, 2.7rem);
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-size: 1rem;
    color: #6b7280;
    margin-bottom: 1rem;
}

.hero-text p {
    color: #4b5563;
}

.hero-image img {
    width: 100%;
    max-height: 260px;
    object-fit: cover;
    border-radius: 1rem;
    border: 1px solid #e5e7eb;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
}

/* Sections */

.section {
    padding: 2.5rem 0;
}

.section-light {
    background-color: #ffffff;
}

.section h2 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
}

.section p {
    margin-bottom: 0.8rem;
    color: #4b5563;
}

/* Cartes services */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.card {
    background-color: #f9fafb;
    border-radius: 1rem;
    padding: 1rem;
    border: 1px solid #e5e7eb;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 0.75rem;
    margin-bottom: