:root {
    --brand-blue: #12385f;
    --brand-blue-opacity: rgba(18, 56, 95, 0.7);
    --brand-blue-dark: #0b2846;
    --brand-yellow: #eec64d;
    --brand-yellow-opacity: rgba(238, 198, 77, 0.7);
    --on-brand-blue: #f5f7fa;
    --on-brand-yellow: #0e232d;

    --timeline-point-shadow:
        0 0 0 4px rgba(238, 198, 77, 0.35),
        0 0 12px rgba(238, 198, 77, 0.45),
        0 0 20px rgba(238, 198, 77, 0.3);

    --text-primary: #0e232d;
    --text-secondary: #364849;
    --text-muted: #525c5e;
    --text-inverse: #ffffff;

    --text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
    --black-overlay: rgba(0, 0, 0, 0.6);

    --transition-duration: 0.3s;
    --transition-easing: ease;

    --font-sans: "Inter", system-ui, -apple-system, "Segoe UI",
        "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;

    --font-title: "PT Serif", serif;

    --leading-body: 1.6;
    --leading-heading: 0.9;
    --tracking-tight: -0.01em;
    --tracking-normal: 0;

    --weight-light: 300;
    --weight-regular: 400;
    --weight-medium: 500;
    --weight-bold: 700;
    --weight-extrabold: 800;

    --container-max-width-1: 1650px;
    --container-max-width-2: 1400px;
    --container-max-width-3: 966px;

    --container-padding-2xs: clamp(4px, 0.75vw, 8px);
    --container-padding-xs: clamp(8px, 1.5vw, 16px);
    --container-padding-sm: clamp(12px, 2.25vw, 24px);
    --container-padding-md: clamp(16px, 3vw, 32px);
    --container-padding-lg: clamp(20px, 4.5vw, 48px);
    --container-padding-xl: clamp(24px, 6vw, 72px);
    --container-padding-2xl: clamp(32px, 8vw, 96px);
    --container-padding-3xl: clamp(40px, 10vw, 120px);

    --vw: 18.97px;
    --font-size-3xl: clamp(50px, 0.1041666667 * calc(100 * var(--vw, 1vw)), 150px);
    --font-size-2xl: clamp(50px, 0.0520833333 * calc(100 * var(--vw, 1vw)), 75px);
    --font-size-xl: clamp(35px, 0.0381944444 * calc(100 * var(--vw, 1vw)), 55px);
    --font-size-lg: clamp(30px, 0.0243055556 * calc(100 * var(--vw, 1vw)), 35px);
    --font-size-md: clamp(22px, 0.0152777778 * calc(100 * var(--vw, 1vw)), 22px);
    --font-size-sm: clamp(18px, 0.013 * calc(100 * var(--vw, 1vw)), 20px);
    --font-size-xs: clamp(16px, 0.011 * calc(100 * var(--vw, 1vw)), 18px);
    --font-size-2xs: clamp(15px, 0.010 * calc(100 * var(--vw, 1vw)), 17px);
    --font-size-3xs: clamp(13px, 0.008 * calc(100 * var(--vw, 1vw)), 15px);
    --font-size-4xs: clamp(11px, 0.006 * calc(100 * var(--vw, 1vw)), 13px);

    --navbar-height: 8dvh;
}


.about_wrapper {
    padding-bottom: var(--container-padding-3xs);
}
.par_wrapper{
    grid-template-columns: 1fr;
}

/* =========================
    CARTA (LISTA PRODOTTI + VISUAL)
   ========================= */
.carta {
    width: 100%;
    background: var(--on-brand-blue);
    isolation: isolate;
}

.wrapper_carta {
    max-width: var(--container-max-width-1);
    width: 100%;
    padding: var(--container-padding-2xl) var(--container-padding-sm);
    padding-top: var(--container-padding-xl);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--container-padding-2xs);
}

.grid_carta {
    display: grid;
    grid-template-columns: 1.7fr 1fr;
    gap: var(--container-padding-lg);
    align-items: start;
}

.left_carta {
    display: flex;
    flex-direction: column;
    gap: var(--container-padding-2xs);
}

.carta_title {
    color: var(--text-primary);
    font-weight: var(--weight-bold);
    font-size: var(--font-size-2xl);
    font-family: var(--font-title);
    line-height: 1;
    letter-spacing: var(--tracking-tight);
    margin-bottom: var(--container-padding-sm);
}

.left_carta ul {
    display: flex;
    flex-direction: column;
    padding: 0;
    margin: 0;
}

.left_carta ul li {
    display: flex;
    align-items: center;
    gap: var(--container-padding-sm);
    padding: var(--container-padding-md) var(--container-padding-sm);
    border-bottom: 2px solid rgba(18, 56, 95, .2);
    border-left: 4px solid transparent;
    border-radius: 12px;
    transition:
        background var(--transition-duration) var(--transition-easing),
        border-color var(--transition-duration) var(--transition-easing),
        box-shadow var(--transition-duration) var(--transition-easing),
        transform var(--transition-duration) var(--transition-easing);
    will-change: background, box-shadow, transform;
}

.left_carta ul li:hover {
    background: var(--brand-blue);
    border-color: var(--brand-yellow);
}

.left_carta ul li:hover .serial h2 {
    color: var(--brand-yellow);
}

.left_carta ul li:hover .carta_subtitle {
    color: var(--on-brand-blue);
}

.carta_par {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: var(--container-padding-sm);
    width: 100%;
}

.serial h2 {
    font-family: var(--font-title);
    color: var(--brand-blue);
    opacity: .9;
    font-size: var(--font-size-lg);
    line-height: 1;
    text-shadow: none;
    transition:
        color var(--transition-duration) var(--transition-easing),
        opacity var(--transition-duration) var(--transition-easing);
    min-width: 3ch;
}

.carta_subtitle {
    color: var(--text-primary);
    font-weight: var(--weight-medium);
    font-size: var(--font-size-md);
    line-height: 1.15;
    transition: color var(--transition-duration) var(--transition-easing);
}

.carta_par .btn_blu * {
    transition: all 0.45s cubic-bezier(0.65, 0, 0.076, 1) !important;
}

.btn_info {
    width: 9.5em;
    opacity: .9;
    transition:
        color var(--transition-duration) var(--transition-easing),
        border-color var(--transition-duration) var(--transition-easing),
        opacity var(--transition-duration) var(--transition-easing);
}

.left_carta ul li:hover .btn_info,
.left_carta ul li:focus-within .btn_info,
.left_carta ul li.active .btn_info {
    opacity: 1;
    border: 2px solid var(--brand-yellow);
}

.left_carta ul li:hover button.btn_blu .circle,
.left_carta ul li:focus-within button.btn_blu .circle,
.left_carta ul li.active button.btn_blu .circle {
    background: var(--brand-yellow);
}

.left_carta ul li:hover button.btn_blu .circle .icon.arrow::before,
.left_carta ul li:focus-within button.btn_blu .circle .icon.arrow::before,
.left_carta ul li.active button.btn_blu .circle .icon.arrow::before {
    border-color: var(--on-brand-yellow);
}

.left_carta ul li:hover button.btn_blu .button-text,
.left_carta ul li:focus-within button.btn_blu .button-text,
.left_carta ul li.active button.btn_blu .button-text {
    color: var(--brand-yellow);
}

.left_carta ul li:hover button.btn_blu:hover .circle .icon.arrow,
.left_carta ul li:focus-within button.btn_blu:hover .circle .icon.arrow,
.left_carta ul li.active button.btn_blu:hover .circle .icon.arrow {
    background: var(--on-brand-yellow);
    transform: translate(1.2rem, 0);
}

.left_carta ul li:hover button.btn_blu:hover .button-text,
.left_carta ul li:focus-within button.btn_blu:hover .button-text,
.left_carta ul li.active button.btn_blu:hover .button-text {
    color: var(--on-brand-yellow);
}

.right_carta {
    height: 100%;
    width: 100%;
    max-height: 46em;
}

.right_carta img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1.5rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, .15);
    transition: opacity var(--transition-duration) var(--transition-easing), transform var(--transition-duration) var(--transition-easing);
    will-change: opacity, transform;
}

.right_carta img.is-changing {
    transform: scale(0.985);
}

/* =========================
    RESPONSIVE
   ========================= */
@media (max-width: 1200px) {
    .grid_carta {
        grid-template-columns: 1.4fr 1fr;
    }
}

@media (max-width: 992px) {
    .par_wrapper {
        grid-template-columns: 1fr;
    }

    .grid_carta {
        grid-template-columns: 1fr;
    }

    .right_carta {
        position: relative;
        top: 0;
        order: -1;
        margin-bottom: var(--container-padding-md);
    }

    .right_carta img {
        aspect-ratio: 16 / 9;
        border-radius: 1rem;
    }

    .left_carta ul li {
        padding: var(--container-padding-sm) var(--container-padding-xs);
    }
}

@media (max-width: 560px) {
    .carta_subtitle {
        font-size: var(--font-size-sm);
    }

    .serial h2 {
        font-size: var(--font-size-lg);
    }

    .btn_info {
        width: 8.5em;
    }
}

@media (max-width: 760px) {
    .intestazione_title {
        font-size: var(--font-size-lg);
    }
}

/* =========================
    ACCESSIBILITÀ / MOTION
   ========================= */
.left_carta ul li:focus-within {
    outline: 2px solid transparent;
    box-shadow:
        0 0 0 3px rgba(238, 198, 77, .45),
        0 8px 24px rgba(18, 56, 95, .12);
}

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

    .left_carta ul li,
    .right_carta img,
    .btn_info {
        transition: none !important;
    }
}

@media (max-width: 707px) {
    .carta_title {
    font-size: var(--font-size-md);
}

.serial h2 {
        font-size: var(--font-size-xs);
    }

        .carta_subtitle {
        font-size: var(--font-size-3xs);
    }


}