/* ==========================================================================
   Taille-coffre.fr — Design system front-end
   Palette : bleu foncé / bleu clair / blanc / gris très clair, vert = positif
   Typo : Inter (texte) + IBM Plex Mono (données chiffrées, "instrument de précision")
   ========================================================================== */

:root {
    --c-dark: #123A63;
    --c-accent: #2F80ED;
    --c-accent-soft: #EAF2FE;
    --c-white: #FFFFFF;
    --c-bg: #F7F8FA;
    --c-positive: #1DB876;
    --c-positive-soft: #E4F7EF;
    --c-border: #E3E7ED;
    --c-text: #1A2433;
    --c-text-muted: #5B6472;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

    --radius-card: 12px;
    --radius-sm: 8px;
    --shadow-soft: 0 1px 2px rgba(18, 58, 99, 0.05), 0 1px 1px rgba(18, 58, 99, 0.03);
    --transition-fast: 150ms ease;

    --container-w: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--c-text);
    background: var(--c-white);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
img { max-width: 100%; display: block; }

h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: 2.6rem; line-height: 1.1; font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: 1.75rem; line-height: 1.2; }
h3 { font-size: 1.2rem; line-height: 1.3; }
p { margin: 0; }

/* Motif "plan technique" : grille millimétrée en bleu très clair, signature visuelle du
   site (fait écho aux illustrations de dimensions annotées). Utilisé avec parcimonie :
   uniquement sur le hero et le panneau de volume, pour ne pas diluer l'effet. */
.blueprint {
    background-color: var(--c-bg);
    background-image:
        linear-gradient(rgba(47, 128, 237, 0.09) 1px, transparent 1px),
        linear-gradient(90deg, rgba(47, 128, 237, 0.09) 1px, transparent 1px);
    background-size: 28px 28px;
    background-position: center top;
}

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 3.5rem 0; }
.section-head { max-width: 620px; margin-bottom: 2rem; }
.section-head h2 { margin-bottom: 0.5rem; }
.section-head p { color: var(--c-text-muted); }
.eyebrow {
    display: inline-block; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em;
    text-transform: uppercase; color: var(--c-accent); margin-bottom: 0.6rem;
}

:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; }

/* ---- Boutons ---- */
.btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.7rem 1.3rem; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 0.92rem; text-decoration: none;
    border: 1px solid transparent; cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}
.btn-primary { background: var(--c-accent); color: var(--c-white); }
.btn-primary:hover { background: #2469c9; transform: translateY(-1px); }
.btn-outline { background: var(--c-white); color: var(--c-dark); border-color: var(--c-border); }
.btn-outline:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ---- Topbar / nav ---- */
.site-header {
    position: sticky; top: 0; z-index: 40;
    background: rgba(255,255,255,0.92); backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--c-border);
}
.site-header-inner { display: flex; align-items: center; justify-content: space-between; padding: 0.9rem 1.5rem; max-width: var(--container-w); margin: 0 auto; gap: 1rem; }
.brand { display: flex; align-items: center; gap: 0.55rem; text-decoration: none; color: var(--c-dark); font-weight: 700; font-size: 1.05rem; white-space: nowrap; flex-shrink: 0; }
.brand svg { width: 28px; height: 28px; }
.main-nav { display: flex; align-items: center; gap: 1.6rem; }
.main-nav a { text-decoration: none; color: var(--c-text); font-size: 0.92rem; font-weight: 500; }
.main-nav a:hover { color: var(--c-accent); }

.nav-toggle {
    display: none; align-items: center; justify-content: center;
    width: 40px; height: 40px; flex-shrink: 0; border-radius: var(--radius-sm);
    border: 1px solid var(--c-border); background: var(--c-white); color: var(--c-dark);
    cursor: pointer; padding: 0;
}
.nav-toggle:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ---- Barre de recherche ---- */
.search-box {
    position: relative;
    display: flex; align-items: center; gap: 0.6rem;
    background: var(--c-white); border: 1.5px solid var(--c-border); border-radius: 12px;
    padding: 0.2rem 0.2rem 0.2rem 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.search-box:focus-within { border-color: var(--c-accent); box-shadow: 0 0 0 4px var(--c-accent-soft); }
.search-box svg { flex-shrink: 0; color: var(--c-text-muted); }
.search-box input {
    flex: 1; min-width: 0; border: none; outline: none; font-family: var(--font-sans);
    font-size: 1rem; padding: 0.85rem 0; background: transparent; color: var(--c-text);
}
.search-box input::placeholder { color: #9AA4B2; }
.search-box button { flex-shrink: 0; }

.search-box-compact { max-width: 320px; flex: 1 1 auto; min-width: 0; }
.search-box-compact input { padding: 0.5rem 0; font-size: 0.92rem; min-width: 0; }

.autocomplete-list {
    position: absolute; top: calc(100% + 6px); left: 0; right: 0;
    background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius-sm);
    box-shadow: 0 8px 24px rgba(18,58,99,0.12);
    max-height: 320px; overflow-y: auto; z-index: 50; display: none;
}
.autocomplete-list.is-open { display: block; }
.autocomplete-item { display: flex; justify-content: space-between; gap: 0.75rem; padding: 0.65rem 1rem; cursor: pointer; font-size: 0.92rem; text-decoration: none; color: var(--c-text); }
.autocomplete-item span.muted { color: var(--c-text-muted); font-size: 0.82rem; }
.autocomplete-item:hover, .autocomplete-item.is-active { background: var(--c-bg); }
.autocomplete-empty { padding: 0.75rem 1rem; color: var(--c-text-muted); font-size: 0.88rem; }

/* ---- Hero ---- */
.hero { background: var(--c-bg); padding: 4.5rem 0 3.5rem; text-align: center; }
.hero.blueprint { padding-top: 5rem; }
.hero h1 { max-width: 760px; margin: 0 auto 0.9rem; color: var(--c-dark); }
.hero-sub { max-width: 560px; margin: 0 auto 2.2rem; color: var(--c-text-muted); font-size: 1.05rem; }
.hero .search-box { max-width: 640px; margin: 0 auto; }

.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.55rem; margin-top: 1.3rem; }
.chip {
    display: inline-block; padding: 0.4rem 0.9rem; border-radius: 30px;
    background: var(--c-white); border: 1px solid var(--c-border);
    font-size: 0.85rem; font-weight: 500; text-decoration: none; color: var(--c-text);
    transition: border-color var(--transition-fast), color var(--transition-fast);
}
.chip:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ---- Cartes "pourquoi nous" ---- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.feature-card { background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius-card); padding: 1.5rem; }
.feature-card .icon { font-size: 1.6rem; margin-bottom: 0.7rem; }
.feature-card h3 { margin-bottom: 0.4rem; }
.feature-card p { color: var(--c-text-muted); font-size: 0.92rem; }

/* ---- Cartes véhicule ---- */
.vehicle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.vehicle-card {
    display: block; text-decoration: none; color: var(--c-text);
    background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius-card);
    padding: 1.25rem; transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.vehicle-card:hover { border-color: var(--c-accent); box-shadow: var(--shadow-soft); transform: translateY(-2px); }
.vehicle-card .badge { margin-bottom: 0.6rem; }
.vehicle-card h3 { font-size: 1.05rem; margin-bottom: 0.3rem; }
.vehicle-card .volume { font-family: var(--font-mono); font-weight: 600; color: var(--c-accent); font-size: 1.4rem; font-variant-numeric: tabular-nums; }
.vehicle-card .volume span { font-size: 0.85rem; color: var(--c-text-muted); font-family: var(--font-sans); font-weight: 500; margin-left: 0.2rem; }

.badge {
    display: inline-block; font-size: 0.72rem; font-weight: 600; padding: 0.22rem 0.6rem;
    border-radius: 20px; background: var(--c-accent-soft); color: var(--c-dark);
}

/* ---- Articles (liés à la table `articles` du back office) ---- */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.article-card { text-decoration: none; color: var(--c-text); border: 1px solid var(--c-border); border-radius: var(--radius-card); overflow: hidden; background: var(--c-white); }
.article-card img { width: 100%; height: 150px; object-fit: cover; background: var(--c-bg); }
.article-card .body { padding: 1rem 1.15rem 1.25rem; }
.article-card h3 { font-size: 1rem; margin-bottom: 0.3rem; }
.article-card p { color: var(--c-text-muted); font-size: 0.88rem; }

/* ---- Grille de marques ---- */
.brand-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0.75rem; }
.brand-tile {
    text-align: center; padding: 1rem 0.5rem; border: 1px solid var(--c-border); border-radius: var(--radius-sm);
    text-decoration: none; color: var(--c-text); font-weight: 600; font-size: 0.9rem;
    transition: border-color var(--transition-fast), color var(--transition-fast);
}
.brand-tile:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ---- Footer ---- */
.site-footer { background: var(--c-dark); color: #D7E2F0; padding: 3rem 0 1.5rem; margin-top: 3rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer-grid h4 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.9rem; }
.footer-grid a { display: block; color: #AEC2DB; text-decoration: none; font-size: 0.88rem; margin-bottom: 0.55rem; }
.footer-grid a:hover { color: #fff; }
.footer-brand { font-weight: 700; color: #fff; font-size: 1.05rem; margin-bottom: 0.6rem; }
.footer-brand-sub { color: #AEC2DB; font-size: 0.88rem; max-width: 280px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 1.2rem; font-size: 0.8rem; color: #9AB0CC; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.footer-bottom a { color: #9AB0CC; text-decoration: underline; }
.footer-bottom a:hover { color: #fff; }

/* ==========================================================================
   Fiche véhicule
   ========================================================================== */
.breadcrumb { font-size: 0.85rem; color: var(--c-text-muted); margin-bottom: 1.1rem; }
.breadcrumb a { text-decoration: none; color: var(--c-text-muted); }
.breadcrumb a:hover { color: var(--c-accent); }

.vehicle-head { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.6rem; flex-wrap: wrap; }
.vehicle-head h1 { color: var(--c-dark); }

.volume-panel {
    display: grid; grid-template-columns: 1.1fr 1fr; gap: 1.5rem; align-items: center;
    border: 1px solid var(--c-border); border-radius: var(--radius-card);
    padding: 2rem; margin-bottom: 2rem;
}
.volume-figure { font-family: var(--font-mono); font-weight: 700; color: var(--c-dark); font-size: 3.2rem; line-height: 1; font-variant-numeric: tabular-nums; }
.volume-figure .unit { font-size: 1.2rem; color: var(--c-text-muted); font-family: var(--font-sans); font-weight: 500; margin-left: 0.3rem; }
.volume-range { color: var(--c-text-muted); font-size: 0.92rem; margin-top: 0.6rem; }
.volume-illustration { display: flex; align-items: center; justify-content: center; }

.specs-table {
    width: 100%; border-collapse: separate; border-spacing: 0; margin-bottom: 2.2rem;
    border: 1px solid var(--c-border); border-radius: var(--radius-card); overflow: hidden;
}
.specs-table th, .specs-table td { text-align: left; padding: 0.75rem 1.1rem; border-bottom: 1px solid var(--c-border); font-size: 0.92rem; }
.specs-table th { width: 45%; color: var(--c-text-muted); font-weight: 500; }
.specs-table td { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 600; }
.specs-table tr:nth-child(even) th, .specs-table tr:nth-child(even) td { background: var(--c-bg); }
.specs-table tr:last-child th, .specs-table tr:last-child td { border-bottom: none; }

.fits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-bottom: 2.2rem; }
.fits-item { display: flex; align-items: center; gap: 0.65rem; padding: 0.85rem 1rem; border: 1px solid var(--c-border); border-radius: var(--radius-sm); font-size: 0.9rem; transition: transform var(--transition-fast); }
.fits-item.is-yes { border-color: var(--c-positive-soft); background: var(--c-positive-soft); }
.fits-item:hover { transform: translateY(-1px); }
.mark-icon { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0; }
.mark-icon.is-yes { background: var(--c-positive); color: #fff; }
.mark-icon.is-no { background: #f3d9d6; color: #B3261E; }

.similar-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-bottom: 2.2rem; }

.faq-list { display: flex; flex-direction: column; gap: 0.6rem; }
.faq-item { border: 1px solid var(--c-border); border-radius: var(--radius-card); background: var(--c-white); transition: border-color var(--transition-fast); }
.faq-item:hover { border-color: #c9d3e0; }
.faq-item.is-open { border-color: var(--c-accent); }
.faq-question {
    width: 100%; text-align: left; background: none; border: none; cursor: pointer;
    padding: 1.05rem 1.25rem; font-size: 0.98rem; font-weight: 600; color: var(--c-text);
    display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 220ms ease; color: var(--c-text-muted); font-size: 0.92rem; }
.faq-answer p { padding: 0 1.25rem; }
.faq-item.is-open .faq-answer { max-height: 420px; padding-bottom: 1.1rem; }
.faq-item .faq-icon {
    display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0;
    width: 22px; height: 22px; border-radius: 50%; background: var(--c-accent-soft); color: var(--c-accent);
    font-size: 1.05rem; line-height: 1; transition: transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}
.faq-item.is-open .faq-icon { transform: rotate(45deg); background: var(--c-accent); color: #fff; }

.seo-article { color: var(--c-text-muted); font-size: 0.97rem; max-width: 740px; line-height: 1.7; }
.seo-article > * + * { margin-top: 1.1rem; }
.seo-article h2 { color: var(--c-dark); margin-top: 2.4rem; font-size: 1.4rem; }
.seo-article h2:first-child { margin-top: 0; }
.seo-article h3 { color: var(--c-text); margin-top: 1.8rem; font-size: 1.1rem; }
.seo-article p { margin: 0; }
.seo-article ul { margin: 0; padding-left: 1.2rem; }
.seo-article li { margin-bottom: 0.5rem; }
.seo-article li strong { color: var(--c-text); }
.seo-article a { color: var(--c-accent); text-decoration: underline; }

/* ==========================================================================
   Comparateur
   ========================================================================== */
.compare-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 1.5rem; align-items: start; }
.compare-vs { display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-weight: 700; color: var(--c-text-muted); padding-top: 3rem; }
.compare-card { border: 1px solid var(--c-border); border-radius: var(--radius-card); padding: 1.5rem; position: relative; }
.compare-card.is-winner { border-color: var(--c-positive); box-shadow: 0 0 0 3px var(--c-positive-soft); }
.winner-badge { position: absolute; top: -12px; right: 1.2rem; background: var(--c-positive); color: #fff; font-size: 0.75rem; font-weight: 700; padding: 0.25rem 0.7rem; border-radius: 20px; }
.compare-card .search-box { margin-bottom: 1.2rem; }
.compare-empty { color: var(--c-text-muted); font-size: 0.9rem; text-align: center; padding: 2rem 0; }

/* ==========================================================================
   Classements
   ========================================================================== */
.ranking-tabs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.75rem; }
.ranking-tab { padding: 0.45rem 0.9rem; border-radius: 20px; border: 1px solid var(--c-border); text-decoration: none; color: var(--c-text); font-size: 0.85rem; font-weight: 500; }
.ranking-tab.is-active { background: var(--c-dark); border-color: var(--c-dark); color: #fff; }
.ranking-table { width: 100%; border-collapse: collapse; }
.ranking-table th, .ranking-table td { text-align: left; padding: 0.8rem 1rem; border-bottom: 1px solid var(--c-border); font-size: 0.92rem; }
.ranking-table th { color: var(--c-text-muted); font-weight: 500; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
.ranking-table td.num { font-family: var(--font-mono); font-weight: 600; font-variant-numeric: tabular-nums; }
.ranking-rank { color: var(--c-text-muted); font-family: var(--font-mono); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px) {
    .feature-grid, .vehicle-grid, .article-grid, .similar-grid { grid-template-columns: repeat(2, 1fr); }
    .brand-grid { grid-template-columns: repeat(4, 1fr); }
    .volume-panel { grid-template-columns: 1fr; text-align: center; }
    .volume-illustration { justify-content: center; }
    .fits-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    /* Header sur deux lignes : logo + burger en haut, recherche pleine largeur en dessous */
    .site-header-inner { flex-wrap: wrap; row-gap: 0.75rem; padding: 0.75rem 1rem; }
    .nav-toggle { display: flex; order: 2; }
    .search-box-compact { order: 3; flex-basis: 100%; max-width: none; }

    .main-nav {
        order: 4; flex-basis: 100%; display: none; flex-direction: column; align-items: stretch;
        gap: 0; margin-top: 0.25rem; border-top: 1px solid var(--c-border); padding-top: 0.5rem;
    }
    .main-nav.is-open { display: flex; }
    .main-nav a { padding: 0.7rem 0.2rem; font-size: 1rem; }

    h1 { font-size: 1.9rem; }
    .feature-grid, .vehicle-grid, .article-grid, .similar-grid, .fits-grid { grid-template-columns: 1fr; }
    .brand-grid { grid-template-columns: repeat(3, 1fr); }
    .compare-grid { grid-template-columns: 1fr; }
    .compare-vs { padding-top: 0; }
    .specs-table { display: block; overflow-x: auto; }
    .ranking-table { display: block; overflow-x: auto; white-space: nowrap; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero { padding: 3rem 0 2.5rem; }
}