@import url("https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600&display=swap");

/* Base commune : typographie légère et mise en page centrée. */
:root {
    --accent: #337ab7;
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: #505050;
    background: #fff;
    font: 300 14px/1.43 "Source Sans Pro", sans-serif;
    text-align: center;
}

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

a:hover {
    color: #23527c;
    text-decoration: underline;
}

a:focus-visible, .cd-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 5px;
}

.site-header {
    height: 250px;
    padding: 80px 15px 0;
}

.site-header nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 24px;
}

.site-main {
    width: min(1170px, calc(100% - 30px));
    margin: auto;
}

h1 {
    margin: 0 0 60px;
    font-size: 36px;
    font-weight: 500;
    line-height: 1.1;
    text-transform: uppercase;
}

.cd-title {
    text-transform: none;
}

/* Titres conservés pour les lecteurs d’écran, sans légende sous les images. */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

/* Accueil. */
.home-links {
    display: grid;
    gap: 5px;
    width: min(360px, 85%);
    margin: 0 auto 75px;
}

.home-links a {
    padding: 10px 16px;
    border: 1px solid #2e6da4;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.333;
    box-shadow: 0 2px 8px rgb(0 0 0 / 20%);
}

.home-links a:hover, .home-links a:focus-visible {
    background: #286090;
    text-decoration: none;
}

.email {
    font-size: 1rem;
}

.site-footer {
    padding: 25px 15px 10px;
    font-size: 4rem;
    opacity: .9;
}

/* Galeries : trois grilles, une seule règle d’ombre. */
.portfolio {
    padding: 20px 0 50px;
}

.book-grid, .website-grid, .cd-grid {
    display: grid;
    align-items: start;
    row-gap: 100px;
}

.book-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.book-card a, .website-card a {
    display: block;
}

.portfolio img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: auto;
    box-shadow: 0 16px 28px rgb(0 0 0 / 22%), 0 25px 55px rgb(0 0 0 / 21%);
}

.book-card img {
    width: 130px;
    aspect-ratio: 2 / 3;
    object-fit: cover;
}

.website-card {
    width: 83.333%;
    justify-self: center;
}

.website-card img {
    width: 100%;
}

.is-unavailable {
    cursor: not-allowed;
    opacity: .6;
}

.cd-card {
    position: relative;
    width: min(80vw, 100%);
    margin: 0;
    justify-self: center;
}

.cd-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.cd-card figcaption {
    position: absolute;
    inset: auto 0 0;
    padding: 10px;
    background: rgb(255 255 255 / 80%);
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    opacity: 0;
    transition: opacity .2s;
}

.cd-card:hover figcaption, .cd-card:focus-visible figcaption {
    opacity: 1;
}

@media (min-width: 768px) {
    .book-grid, .cd-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .website-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .book-card img {
        width: 200px;
    }
    .cd-card {
        width: 210px;
    }
}

@media (min-width: 992px) {
    .book-grid, .cd-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (hover: none) {
    .cd-card figcaption {
        opacity: 1;
    }
}

@media (prefers-reduced-motion: reduce) {
    .cd-card figcaption {
        transition: none;
    }
}