/* =============================================================
   Page "Radiochimie" — refonte
   -------------------------------------------------------------
   Même langage visuel que les pages "À propos" / "Activités et
   résultats" (base claire, grandes respirations, titres en graisse
   légère, rayons généreux), mais avec une grammaire de mise en page
   propre à cette page : grille de radionucléides façon tableau
   périodique, portefeuille sur fond profond avec halos animés,
   bande photo de respiration avant les équipements.
   Tout est préfixé .rx- et scopé à .rx-page.
   Retour arrière : restaurer radiochimie.backup.php.
   ============================================================= */

.rx-page {
    --rx-ink: #16171F;
    --rx-ink-soft: #6B6F76;
    --rx-line: rgba(2, 3, 22, 0.09);
    --rx-tint-blue: #F1F6FD;
    --rx-tint-teal: #EEF8F7;
    --rx-tint-neutral: #F6F6F7;
    --rx-radius: 26px;
    --rx-shadow: 0 1px 2px rgba(2, 3, 22, 0.05);
    background-color: var(--color-white);
}

/* Le thème colore et espace toutes les <section> (sélecteur `section`, 0-0-1).
   On neutralise à spécificité égale — la feuille étant chargée après, elle
   l'emporte — tout en restant surclassable par chaque bloc .rx-* (0-1-0). */
:where(.rx-page) section {
    background-color: transparent;
    padding: 0;
    overflow: visible;
}

.rx-shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Typographie commune ---------- */

.rx-title {
    margin: 0;
    font-weight: 300;
    letter-spacing: -0.015em;
    line-height: 1.08;
    color: var(--rx-ink);
    font-size: clamp(1.9rem, 4vw, 3rem);
}

.rx-subtitle {
    margin: 0;
    font-weight: 400;
    letter-spacing: -0.01em;
    line-height: 1.25;
    color: var(--rx-ink);
    font-size: clamp(1.15rem, 1.8vw, 1.45rem);
}

.rx-lead {
    margin: 24px 0 0;
    max-width: 54ch;
    font-size: clamp(16px, 1.1vw, 18px);
    line-height: 1.6;
    font-weight: 300;
    color: var(--rx-ink);
}

.rx-text {
    margin: 20px 0 0;
    max-width: 62ch;
    font-size: 16px;
    line-height: 1.75;
    font-weight: 300;
    color: var(--rx-ink-soft);
}

.rx-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-teal);
}

.rx-eyebrow-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 22px;
    padding: 0 7px;
    border-radius: 999px;
    background-color: var(--rx-tint-teal);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--color-teal);
}

.rx-section-head {
    max-width: 760px;
    margin-bottom: clamp(40px, 5vw, 64px);
}

/* ---------- Dégradé de marque animé ---------- */

@keyframes rx-gradient-slide {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

@keyframes rx-gradient-glow {

    0%,
    100% {
        background-position: 0% 0%;
    }

    50% {
        background-position: 100% 100%;
    }
}

.rx-gradient-text {
    background-image: linear-gradient(100deg,
            var(--color-teal) 0%,
            var(--color-blue) 40%,
            var(--color-blue-darker) 60%,
            var(--color-teal) 100%);
    background-size: 260% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: rx-gradient-slide 11s ease-in-out infinite;
}

/* ---------- Boutons pilule ---------- */

.rx-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 38px;
}

.rx-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 500;
    line-height: 1;
    text-decoration: none;
    transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.rx-btn i {
    font-size: 0.78rem;
    transition: transform 0.3s ease;
}

.rx-btn:hover i {
    transform: translateX(4px);
}

.rx-btn-primary {
    background-color: var(--rx-ink);
    color: var(--color-white);
}

.rx-btn-primary:hover {
    background-color: var(--color-blue-dark);
    color: var(--color-white);
    transform: translateY(-2px);
}

.rx-btn-ghost {
    border-color: var(--rx-line);
    background-color: transparent;
    color: var(--rx-ink);
}

.rx-btn-ghost:hover {
    border-color: var(--rx-ink);
    color: var(--rx-ink);
    transform: translateY(-2px);
}

/* ---------- 01 · Intro ---------- */

.rx-intro {
    padding: clamp(80px, 9vw, 130px) 0 clamp(60px, 7vw, 100px);
}

.rx-intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(36px, 6vw, 84px);
    align-items: center;
}

.rx-intro-media {
    position: relative;
    border-radius: var(--rx-radius);
    overflow: hidden;
    aspect-ratio: 4 / 5;
}

.rx-intro-media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Voile dégradé de marque très léger : lie la photo à la charte. */
.rx-intro-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(150deg, rgba(29, 156, 149, 0.28) 0%, rgba(0, 108, 166, 0.18) 45%, rgba(2, 3, 22, 0) 75%);
    background-size: 220% 220%;
    animation: rx-gradient-glow 16s ease-in-out infinite;
    pointer-events: none;
}

.rx-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 3vw, 44px);
    margin: clamp(52px, 6vw, 82px) 0 0;
    padding: clamp(28px, 3vw, 38px) 0 0;
    border-top: 1px solid var(--rx-line);
    list-style: none;
}

.rx-stat {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.rx-stat-value {
    font-size: clamp(2.2rem, 4.5vw, 3.4rem);
    font-weight: 300;
    line-height: 1;
    letter-spacing: -0.02em;
}

.rx-stat-label {
    font-size: 16px;
    font-weight: 300;
    line-height: 1.5;
    color: var(--rx-ink-soft);
}

/* ---------- 02 · Nos services ---------- */

.rx-services {
    padding: clamp(70px, 8vw, 110px) 0;
    background-color: var(--rx-tint-neutral);
}

.rx-service-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 2.4vw, 30px);
}

.rx-service {
    display: flex;
    flex-direction: column;
    background-color: var(--color-white);
    border-radius: var(--rx-radius);
    overflow: hidden;
    box-shadow: var(--rx-shadow);
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s ease;
}

.rx-service:hover {
    transform: translateY(-6px);
    box-shadow: 0 22px 48px rgba(2, 3, 22, 0.09);
}

.rx-service-media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.rx-service-media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rx-service-num {
    position: absolute;
    left: 18px;
    bottom: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.92);
    color: var(--color-blue-dark);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.rx-service-body {
    padding: clamp(24px, 2.6vw, 34px);
}

.rx-service-title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1.3;
    letter-spacing: -0.01em;
    color: var(--rx-ink);
}

.rx-service .rx-text {
    margin-top: 14px;
    max-width: none;
    font-size: 16px;
    line-height: 1.7;
}

/* ---------- 03 · Capacités de radiomarquage ---------- */

.rx-capacities {
    padding: clamp(80px, 9vw, 125px) 0;
}

.rx-capacities-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(36px, 6vw, 80px);
    align-items: center;
}

.rx-capacities-media {
    border-radius: var(--rx-radius);
    overflow: hidden;
    aspect-ratio: 1 / 1;
}

.rx-capacities-media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rx-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 28px 0 0;
    padding: 0;
    list-style: none;
}

.rx-chips li {
    padding: 11px 20px;
    border: 1px solid var(--rx-line);
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--rx-ink);
    background-color: var(--color-white);
}

/* Grille de radionucléides façon tableau périodique */

.rx-nuclides {
    margin-top: clamp(52px, 6vw, 84px);
    padding: clamp(28px, 3.4vw, 44px);
    border-radius: var(--rx-radius);
    background-color: var(--rx-tint-blue);
}

.rx-nuclides-head {
    margin-bottom: clamp(22px, 2.6vw, 32px);
}

.rx-nuclide-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.rx-nuclide {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 10px;
    min-height: 104px;
    padding: 14px 12px;
    border: 1px solid rgba(0, 108, 166, 0.14);
    border-radius: 16px;
    background-color: var(--color-white);
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.35s ease, box-shadow 0.35s ease;
}

.rx-nuclide:hover {
    transform: translateY(-4px);
    border-color: rgba(29, 156, 149, 0.45);
    box-shadow: 0 14px 28px rgba(0, 108, 166, 0.12);
}

.rx-nuclide-symbol {
    display: block;
    font-size: 1.65rem;
    font-weight: 300;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--color-blue-dark);
}

.rx-nuclide-symbol sup {
    margin-right: 1px;
    font-size: 0.5em;
    font-weight: 400;
    top: -0.75em;
    color: var(--color-teal);
}

.rx-nuclide-name {
    display: block;
    font-size: 0.76rem;
    font-weight: 300;
    line-height: 1.3;
    color: var(--rx-ink-soft);
}

/* ---------- 04 · Portefeuille de radiotraceurs ---------- */

.rx-portfolio {
    position: relative;
    overflow: hidden;
    padding: clamp(80px, 9vw, 125px) 0;
    background-color: var(--color-navy-deep);
}

/* Halos de marque en mouvement lent sur le fond profond. */
.rx-portfolio::before {
    content: "";
    position: absolute;
    inset: -20%;
    background-image:
        radial-gradient(circle at 15% 25%, rgba(29, 156, 149, 0.42), transparent 55%),
        radial-gradient(circle at 82% 78%, rgba(0, 108, 166, 0.48), transparent 55%);
    background-size: 180% 180%;
    animation: rx-gradient-glow 18s ease-in-out infinite;
    pointer-events: none;
}

.rx-portfolio > .rx-shell {
    position: relative;
    z-index: 1;
}

.rx-section-head-light .rx-title,
.rx-section-head-light .rx-lead {
    color: var(--color-white);
}

.rx-section-head-light .rx-lead {
    color: rgba(255, 255, 255, 0.78);
}

.rx-section-head-light .rx-eyebrow {
    color: rgba(255, 255, 255, 0.85);
}

.rx-section-head-light .rx-eyebrow-num {
    background-color: rgba(255, 255, 255, 0.12);
    color: var(--color-white);
}

.rx-portfolio-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 26px);
}

.rx-family {
    display: flex;
    flex-direction: column;
    padding: clamp(24px, 2.6vw, 32px);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--rx-radius);
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(6px);
}

.rx-family-head {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 20px;
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.rx-family-isotope {
    font-size: 1.75rem;
    font-weight: 300;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--color-white);
}

.rx-family-isotope sup {
    margin-right: 1px;
    font-size: 0.5em;
    font-weight: 400;
    top: -0.75em;
    color: var(--color-teal);
}

.rx-family-label {
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
}

.rx-tracers {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.rx-tracers li {
    padding: 8px 15px;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.1);
    font-size: 0.88rem;
    font-weight: 300;
    color: var(--color-white);
}

.rx-tracer-more {
    background-color: transparent !important;
    color: rgba(255, 255, 255, 0.5) !important;
    padding-left: 4px !important;
    padding-right: 4px !important;
}

/* ---------- 05 · Équipements ---------- */

.rx-equipment {
    padding: clamp(80px, 9vw, 125px) 0;
}

.rx-equipment-band {
    position: relative;
    border-radius: var(--rx-radius);
    overflow: hidden;
    aspect-ratio: 21 / 8;
    margin-bottom: clamp(40px, 5vw, 64px);
}

.rx-equipment-band img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rx-equipment-band::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(120deg, rgba(0, 80, 143, 0.32) 0%, rgba(29, 156, 149, 0.16) 55%, rgba(2, 3, 22, 0) 100%);
    background-size: 200% 200%;
    animation: rx-gradient-glow 18s ease-in-out infinite;
    pointer-events: none;
}

.rx-equipment-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 40px);
}

.rx-equip {
    padding: clamp(28px, 3vw, 40px);
    border-radius: var(--rx-radius);
    background-color: var(--rx-tint-neutral);
}

.rx-equip:last-child {
    background-color: var(--rx-tint-teal);
}

.rx-equip .rx-text {
    max-width: none;
}

.rx-list {
    margin: 26px 0 0;
    padding: 0;
    list-style: none;
}

.rx-list li {
    position: relative;
    padding: 14px 0 14px 30px;
    border-top: 1px solid var(--rx-line);
    font-size: 16px;
    font-weight: 300;
    line-height: 1.55;
    color: var(--rx-ink);
}

.rx-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 22px;
    width: 10px;
    height: 10px;
    border-radius: 3px;
    background-image: var(--gradient-brand);
}

/* ---------- CTA final ---------- */

.rx-cta {
    position: relative;
    overflow: hidden;
    padding: clamp(90px, 11vw, 150px) 0;
    text-align: center;
    background-image:
        radial-gradient(circle at 18% 20%, rgba(29, 156, 149, 0.55), transparent 55%),
        radial-gradient(circle at 85% 85%, rgba(0, 80, 143, 0.5), transparent 50%),
        linear-gradient(135deg, var(--color-teal) 0%, var(--color-blue) 50%, var(--color-blue-darker) 100%);
    background-size: 200% 200%;
    animation: rx-gradient-glow 14s ease-in-out infinite;
}

.rx-cta-inner {
    max-width: 720px;
    margin: 0 auto;
}

.rx-cta .rx-title,
.rx-cta .rx-lead {
    color: var(--color-white);
}

.rx-cta .rx-lead {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.rx-cta .rx-actions {
    justify-content: center;
}

.rx-cta .rx-btn-primary {
    background-color: var(--color-white);
    color: var(--rx-ink);
}

.rx-cta .rx-btn-primary:hover {
    background-color: var(--rx-tint-blue);
    color: var(--rx-ink);
}

.rx-cta .rx-btn-ghost {
    border-color: rgba(255, 255, 255, 0.55);
    color: var(--color-white);
}

.rx-cta .rx-btn-ghost:hover {
    border-color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.12);
}

/* ---------- Révélation au scroll (page-scopée) ---------- */

html.js-reveal .rx-page [data-rx-reveal] {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.85s cubic-bezier(0.22, 1, 0.36, 1), transform 0.85s cubic-bezier(0.22, 1, 0.36, 1);
}

html.js-reveal .rx-page [data-rx-reveal].is-in {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {

    .rx-cta,
    .rx-portfolio::before,
    .rx-intro-media::after,
    .rx-equipment-band::after,
    .rx-gradient-text {
        animation: none;
    }

    html.js-reveal .rx-page [data-rx-reveal],
    .rx-service,
    .rx-nuclide,
    .rx-family,
    .rx-btn {
        transition: none;
    }

    html.js-reveal .rx-page [data-rx-reveal] {
        opacity: 1;
        transform: none;
    }
}

/* ---------- Responsive ---------- */

@media (max-width: 1199px) {
    .rx-nuclide-grid {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }

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

@media (max-width: 991px) {

    .rx-intro-grid,
    .rx-capacities-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .rx-intro-media {
        aspect-ratio: 16 / 10;
        order: -1;
    }

    .rx-service-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .rx-equipment-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .rx-equipment-band {
        aspect-ratio: 16 / 9;
    }
}

@media (max-width: 767px) {
    .rx-stats {
        grid-template-columns: minmax(0, 1fr);
        gap: 26px;
    }

    .rx-nuclide-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .rx-portfolio-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .rx-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 479px) {
    .rx-nuclide-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}