/* ════════════════════════════════════════
   RESET & BASE
   ════════════════════════════════════════ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --red: #ff0000;
    --black: #111111;
    --grey-dark: #333333;
    --grey-mid: #666666;
    --grey-light: #e8e8e8;
    --grey-bg: #ffffff;
    --white: #ffffff;
    --font-body: "Open Sans", -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    --radius-sm: 4px;
    --radius-md: 6px;
}

body {
    font-family: var(--font-body);
    color: var(--black);
    background: var(--white);
    line-height: 1.6;
}

/* ════════════════════════════════════════
   CONTAINER
   ════════════════════════════════════════ */
.product-detail-page {
    padding: 24px 0 60px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ════════════════════════════════════════
   BREADCRUMB
   ════════════════════════════════════════ */
.breadcrumb-nav {
    margin-bottom: 2rem;
}
.breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
}
.breadcrumb-item a {
    color: var(--grey-mid);
    text-decoration: none;
    text-transform: uppercase;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
}
.breadcrumb-item a:hover { color: var(--red); }
.breadcrumb-separator {
    color: #aaaaaa;
    font-size: 9px;
    display: flex;
    align-items: center;
}
.breadcrumb-current {
    color: var(--red);
    text-transform: uppercase;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 250px;
}

/* ════════════════════════════════════════
   MAIN PRODUCT GRID
   ════════════════════════════════════════ */
.product-main-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
    margin-top: 40px;
    margin-bottom: 0;
    width: 100%;
    background: #ffffff;
    border-radius: 10px;
    padding: 40px 44px;
}

/* ────── LEFT / MEDIA COLUMN ────── */
.product-media-column {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
}

/* ── Main image: grande, sans bordure ── */
.main-image-card {
    position: relative;
    width: 100%;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.main-image-card img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    display: block;
    transition: opacity 0.18s ease;
}

/* Badge */
.upper-tech-badge {
    position: absolute;
    top: 0;
    left: 0;
    background: var(--red);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 4px 10px;
    border-radius: 3px;
    text-transform: uppercase;
    z-index: 2;
}

/* ── Thumbnails + dots row ── */
.thumb-dots-row {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
}

.slider-thumbnails {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.thumb-item {
    width: 80px;
    height: 80px;
    border: 2px solid #dddddd;
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f8f8;
    transition: border-color 0.2s ease;
    padding: 4px;
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.thumb-item:hover {
    border-color: #ff000066;
}

.thumb-item.active {
    border-color: var(--red);
    border-width: 2px;
}

/* ── Dots ── */
.slider-dots {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.slider-dots .dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #cccccc;
    display: inline-block;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.slider-dots .dot:hover {
    background: #ff000080;
    transform: scale(1.15);
}

.slider-dots .dot.active {
    background: #ff0000;
    transform: scale(1.1);
}

/* ────── RIGHT / INFO COLUMN ────── */
.product-info-column {
    padding-top: 10px;
}

.product-main-title {
    font-family: "Open Sans", sans-serif;
    font-size: 38px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: 0.01em;
    color: #222222;
    margin-bottom: 15px;
}

.product-main-title .highlight-red {
    color: #ff0000;
}

.title-decorator-line {
    width: 45px;
    height: 3px;
    background-color: #ff0000;
    margin-bottom: 30px;
}

.product-long-description {
    font-family: "Open Sans", sans-serif;
    font-size: 13.5px;
    line-height: 1.7;
    color: #444444;
    font-weight: 400;
    text-align: justify;
}

/* ════════════════════════════════════════
   SHADOW DIVIDER (pleine largeur)
   ════════════════════════════════════════ */
.section-shadow-divider {
    width: 100%;
    height: 10px;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.12),
        rgba(0, 0, 0, 0.06),
        transparent
    );
}

/* ════════════════════════════════════════
   SPECS & CHARACTERISTICS TABLES
   ════════════════════════════════════════ */
.section-title-divider {
    font-size: 24px;
    font-weight: 700;
    color: var(--grey-dark);
    margin: 40px 0 20px 0;
}
.specs-table-container {
    border: 1px solid var(--grey-light);
    overflow: hidden;
    margin-bottom: 30px;
    width: 100%;
}
.specs-table {
    width: 100%;
    border-collapse: collapse;
}
.main-tech-table thead tr {
    background: var(--red) !important;
}

.main-tech-table th.spec-label,
.main-tech-table th.spec-value {
    color: var(--white) !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 14px 20px !important;
    font-size: 13px;
    text-align: left;
    border: none !important;
}
.specs-table tr {
    border-bottom: 1px solid #eeeeee;
}
.specs-table tr:last-child {
    border-bottom: none;
}
.specs-table tr:nth-child(even) {
    background: #fbfbfb;
}
.specs-table td.spec-label {
    font-size: 12px;
    font-weight: 600;
    color: #444444;
    background: #fafafa;
    text-transform: uppercase;
    padding: 14px 20px;
    width: 35%;
}
.specs-table td.spec-value {
    font-size: 13px;
    font-weight: 500;
    color: #222222;
    background: #fff;
    padding: 14px 20px;
}

/* ════════════════════════════════════════
   ACTION BUTTONS
   ════════════════════════════════════════ */
.product-action-buttons {
    display: flex !important;
    flex-direction: row !important;
    justify-content: center !important;
    align-items: center !important;
    flex-wrap: nowrap !important;
    gap: 15px;
    width: 100%;
    margin: 50px 0 20px;
}
.btn-action-devis,
.btn-action-download,
.btn-action-devis_back {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 50px !important;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.2s ease-in-out;
}
.btn-action-devis {
    background: var(--red) !important;
    color: var(--white) !important;
    border: 2px solid var(--red) !important;
}
.btn-action-devis:hover {
    background: #cc0000 !important;
    border-color: #cc0000 !important;
}
.btn-action-download {
    background: transparent !important;
    color: var(--black) !important;
    border: 1px solid #cccccc !important;
}
.btn-action-download:hover {
    border-color: var(--black) !important;
    background: #fafafa !important;
}
.btn-action-devis_back {
    background: transparent !important;
    color: var(--red) !important;
    border: 1px solid var(--red) !important;
}
.btn-action-devis_back:hover {
    background: #fff5f5 !important;
}

/* ════════════════════════════════════════
   ANIMATIONS
   ════════════════════════════════════════ */
.fade-left  { animation: fadeLeft  0.5s ease both; }
.fade-right { animation: fadeRight 0.5s ease both; }

@keyframes fadeLeft {
    from { opacity: 0; transform: translateX(-15px); }
    to   { opacity: 1; transform: none; }
}
@keyframes fadeRight {
    from { opacity: 0; transform: translateX(15px); }
    to   { opacity: 1; transform: none; }
}

/* ════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════ */
@media (max-width: 992px) {
    .product-main-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 28px 20px;
    }
    .main-image-card {
        min-height: 240px;
    }
    .thumb-item {
        width: 64px;
        height: 64px;
    }
    .product-action-buttons {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    .btn-action-devis,
    .btn-action-download,
    .btn-action-devis_back {
        width: 100% !important;
    }
    .specs-table td.spec-label {
        width: 45%;
    }
    .product-main-title {
        font-size: 28px;
    }
}
CSS