* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    
    background: #ffffff;
    color: #111;
    overflow-x: hidden;
}

/* =========================
   HERO
========================= */

.hero {
    width: 100%;
    min-height: 800px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 82, 134, 0.90),
        rgba(0, 82, 134, 0.55),
        rgba(0, 0, 0, 0.08)
    );
}

.hero-inner {
    width: min(1350px, 90%);
    position: relative;
    z-index: 2;
    padding-top: 45px;
}

.back-link {
    color: white;
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
}

.back-link:hover {
    text-decoration: underline;
}

.hero-content {
    max-width: 900px;
    margin: 115px auto 0;
    text-align: center;
    color: white;
}

.hero-content h1 {
    font-size: clamp(34px, 5vw, 62px);
    font-weight: 900;
    letter-spacing: 1px;
    margin-bottom: 25px;
}

.hero-content p {
    max-width: 820px;
    margin: auto;
    font-size: 15px;
    line-height: 1.6;
    font-weight: 600;
}

/* =========================
   SECTIONS GÉNÉRALES
========================= */

.content-section {
    width: 100%;
    padding: 120px 0;
}

.beige {
    background: #f1f0e8;
}

.white {
    background: #ffffff;
}

.content-wrapper {
    width: min(1220px, 86%);
    margin: auto;
}

.section-small-title {
    display: inline-block;
    margin-bottom: 18px;
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #006eb6;
}
/* =========================
   SECTION TÉLÉCHARGEMENT RAPPORT
========================= */

.download-report-section {
    width: 100%;
    padding: 100px 0;
    background: #f1f0e8;
}

.download-report-wrapper {
    width: min(850px, 88%);
    margin: auto;
    text-align: center;
}

.download-report-wrapper h2 {
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.15;
    font-weight: 900;
    margin-bottom: 22px;
    color: #111;
}

.download-report-wrapper p {
    font-size: 17px;
    line-height: 1.7;
    color: #333;
    margin-bottom: 34px;
}

.download-btn {
    display: inline-block;
    padding: 16px 34px;
    background: #006eb6;
    color: #ffffff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 800;
    border-radius: 50px;
    transition: 0.3s ease;
    box-shadow: 0 16px 35px rgba(0, 110, 182, 0.25);
}

.download-btn:hover {
    background: #004f86;
    transform: translateY(-4px);
    box-shadow: 0 22px 45px rgba(0, 110, 182, 0.35);
}
/* =========================
   SECTIONS TEXTE + IMAGE
========================= */

.two-columns {
    display: grid;
    grid-template-columns: 1fr 0.95fr;
    gap: 80px;
    align-items: center;
}

.text-block h2 {
    font-size: clamp(26px, 2.7vw, 40px);
    line-height: 1.18;
    font-weight: 900;
    margin-bottom: 32px;
    color: #111;
}

.text-block p {
    font-size: 16.5px;
    line-height: 1.65;
    margin-bottom: 15px;
    color: #222;
}

.image-box {
    width: 100%;
    height: 410px;
    overflow: hidden;
    background: #111;
    box-shadow: 0 22px 45px rgba(0, 0, 0, 0.12);
}

.image-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

/* =========================
   GRANDE IMAGE FIXE PLEINE LARGEUR
========================= */

.single-bg-section {
    width: 100%;
    min-height: 620px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}

.single-bg-section.dark .single-bg-overlay {
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.20),
        rgba(0, 0, 0, 0.42)
    );
}

.single-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.10),
        rgba(0, 0, 0, 0.30)
    );
}

/* =========================
   RESPONSIVE TABLETTE
========================= */

@media screen and (max-width: 1024px) {
    .content-section {
        padding: 90px 0;
    }

    .content-wrapper {
        width: 88%;
    }

    .two-columns {
        grid-template-columns: 1fr;
        gap: 45px;
    }

    .image-box {
        height: 420px;
    }

    .hero,
    .single-bg-section {
        background-attachment: scroll;
    }

    .single-bg-section {
        min-height: 480px;
        background-size: cover;
    }
}

/* =========================
   RESPONSIVE MOBILE
========================= */

@media screen and (max-width: 768px) {
    .hero {
        min-height: 470px;
        background-attachment: scroll;
    }

    .hero-inner {
        width: 88%;
        padding-top: 28px;
    }

    .hero-content {
        margin-top: 95px;
    }

    .hero-content h1 {
        font-size: 34px;
    }

    .hero-content p {
        font-size: 14px;
        line-height: 1.55;
    }

    .content-section {
        padding: 70px 0;
    }

    .text-block h2 {
        font-size: 27px;
        margin-bottom: 25px;
    }

    .text-block p {
        font-size: 15.5px;
        line-height: 1.6;
    }

    .image-box {
        height: 300px;
    }

    .single-bg-section {
        min-height: 360px;
        background-attachment: scroll;
        background-size: cover;
    }
     .download-report-section {
        padding: 75px 0;
    }

    .download-report-wrapper p {
        font-size: 15.5px;
    }

    .download-btn {
        width: 100%;
        text-align: center;
    }
}

/* =========================
   PETIT MOBILE
========================= */

@media screen and (max-width: 480px) {
    .hero {
        min-height: 430px;
    }

    .hero-content {
        margin-top: 75px;
    }

    .hero-content h1 {
        font-size: 28px;
        line-height: 1.15;
    }

    .back-link {
        font-size: 13px;
    }

    .content-wrapper {
        width: 90%;
    }

    .image-box {
        height: 245px;
    }

    .single-bg-section {
        min-height: 280px;
        background-attachment: scroll;
        background-size: cover;
    }
}