:root {
    --color-primary: #173b57;
    --color-accent: #e66b35;
    --color-text: #252a2e;
    --color-muted: #68727b;
    --color-background: #f0ede8;
    --color-light: #f4f6f8;
    --container-width: 1200px;
    --radius: 8px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--color-text);
    background: var(--color-background);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.7;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    color: var(--color-accent);
}

h1,
h2,
h3,
h4 {
    margin-top: 0;
    line-height: 1.2;
    color: var(--color-primary);
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
}

h2 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
}

.container {
    width: min(var(--container-width), calc(100% - 40px));
    margin-inline: auto;
}

.section {
    padding-block: 64px;
}

.site-header {
    position: relative;
    z-index: 10;
    background: transparent;
}

.header-inner {
    min-height: 86px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.site-branding {
    flex-shrink: 0;
}

.site-branding img {
    width: auto;
    max-height: 65px;
}

.site-title {
    color: var(--color-primary);
    font-size: 1.5rem;
    font-weight: 700;
}

.main-navigation ul,
.footer-navigation ul {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.main-navigation a {
    font-weight: 600;
}

.menu-toggle {
    display: none;
    border: 0;
    background: transparent;
    font-size: 1.5rem;
    cursor: pointer;
}

.site-main {
    min-height: 55vh;
}

.site-footer {
    padding-block: 40px;
    color: #ffffff;
    background: var(--color-primary);
}

.site-footer a,
.site-footer p {
    color: #ffffff;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-brand p,
.copyright {
    margin-bottom: 0;
}

.footer-brand > a {
    font-size: 1.2rem;
    font-weight: 700;
}

.button,
button,
input[type="submit"] {
    display: inline-block;
    padding: 12px 22px;
    border: 0;
    border-radius: var(--radius);
    color: #ffffff;
    background: var(--color-accent);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.button:hover,
input[type="submit"]:hover {
    color: #ffffff;
    filter: brightness(0.92);
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 10px;
    z-index: 1000;
    padding: 10px 16px;
    color: #ffffff;
    background: var(--color-primary);
}

.skip-link:focus {
    top: 10px;
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

@media (max-width: 800px) {
    .header-inner {
        min-height: 72px;
        flex-wrap: wrap;
        gap: 12px;
        padding-block: 12px;
    }

    .menu-toggle {
        display: block;
    }

    .main-navigation {
        display: none;
        width: 100%;
    }

    .main-navigation.is-open {
        display: block;
    }

    .main-navigation ul {
        align-items: stretch;
        flex-direction: column;
        gap: 0;
    }

    .main-navigation a {
        display: block;
        padding: 10px 0;
    }

    .section {
        padding-block: 40px;
    }

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}


/* Menu principal */
.main-navigation .menu {
    display: flex;
    align-items: center;
    gap: 24px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.main-navigation li {
    position: relative;
    list-style: none;
}

.main-navigation li a {
    display: block;
    padding: 12px 0;
}

/* Sous-menus masqués par défaut */
.main-navigation .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 100;
    display: none;
    min-width: 220px;
    margin: 0;
    padding: 8px 0;
    list-style: none;
    background: #ffffff;
    border: 1px solid #e6e9ec;
    border-radius: 6px;
    box-shadow: 0 8px 24px rgb(0 0 0 / 10%);
}

/* Affichage au survol et au clavier */
.main-navigation li:hover > .sub-menu,
.main-navigation li:focus-within > .sub-menu {
    display: block;
}

.main-navigation .sub-menu li a {
    padding: 10px 16px;
    white-space: nowrap;
}

/* Sous-menu de deuxième niveau */
.main-navigation .sub-menu .sub-menu {
    top: 0;
    left: 100%;
}

/* Menu mobile */
@media (max-width: 800px) {
    .main-navigation .menu {
        display: flex;
        align-items: stretch;
        flex-direction: column;
        gap: 0;
    }

    .main-navigation .sub-menu {
        position: static;
        min-width: 0;
        padding-left: 20px;
        border: 0;
        box-shadow: none;
    }

    .main-navigation li:hover > .sub-menu,
    .main-navigation li:focus-within > .sub-menu {
        display: block;
    }

    .main-navigation .sub-menu li a {
        white-space: normal;
    }
}