.ivrt-panel {
    --ivrt-background-image: none;
    --ivrt-transition-time: 650ms;
    --ivrt-panel-height: 390px;
    --ivrt-lead-color: #33333b;
    --ivrt-word-color: #111118;
    --ivrt-overlay-opacity: 0;

    position: relative;
    display: grid;
    min-height: var(--ivrt-panel-height);
    overflow: hidden;
    isolation: isolate;
    background-image: var(--ivrt-background-image);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.ivrt-panel__shade {
    position: absolute;
    inset: 0;
    z-index: -1;
    background: #ffffff;
    opacity: var(--ivrt-overlay-opacity);
    pointer-events: none;
}

.ivrt-panel__layout {
    width: min(1180px, calc(100% - 40px));
    margin: auto;
    padding: clamp(70px, 9vw, 135px) 0;
    text-align: center;
}

.ivrt-panel__lead {
    margin: 0 0 12px;
    color: var(--ivrt-lead-color);
    font-family: inherit;
    font-size: clamp(20px, 2.1vw, 32px);
    font-weight: 300;
    line-height: 1.3;
    letter-spacing: -0.035em;
}

.ivrt-panel__window {
    position: relative;
    display: grid;
    min-height: 1.2em;
    overflow: hidden;
    color: var(--ivrt-word-color);
    font-family: inherit;
    font-size: clamp(48px, 8vw, 118px);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.065em;
    perspective: 900px;
}

.ivrt-panel__word {
    grid-area: 1 / 1;
    align-self: center;
    justify-self: center;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transform-origin: center;
    backface-visibility: hidden;
    pointer-events: none;
    transition:
        opacity var(--ivrt-transition-time) cubic-bezier(0.22, 1, 0.36, 1),
        transform var(--ivrt-transition-time) cubic-bezier(0.22, 1, 0.36, 1),
        filter var(--ivrt-transition-time) cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform, filter;
}

.ivrt-panel__word.is-current,
.ivrt-panel__word.is-leaving {
    visibility: visible;
}

.ivrt-panel__word.is-current {
    z-index: 2;
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1) rotateX(0deg);
    filter: blur(0);
}

.ivrt-panel__word.is-leaving {
    z-index: 1;
}

/* Roulement vertical */
.ivrt-effect-roll-up .ivrt-panel__word {
    transform: translate3d(0, 105%, 0);
}

.ivrt-effect-roll-up .ivrt-panel__word.is-current {
    transform: translate3d(0, 0, 0);
}

.ivrt-effect-roll-up .ivrt-panel__word.is-leaving {
    opacity: 0;
    transform: translate3d(0, -105%, 0);
}

/* Fondu ascendant */
.ivrt-effect-fade-rise .ivrt-panel__word {
    transform: translate3d(0, 28px, 0) scale(0.985);
}

.ivrt-effect-fade-rise .ivrt-panel__word.is-current {
    transform: translate3d(0, 0, 0) scale(1);
}

.ivrt-effect-fade-rise .ivrt-panel__word.is-leaving {
    opacity: 0;
    transform: translate3d(0, -20px, 0) scale(1.015);
}

/* Rotation 3D douce */
.ivrt-effect-soft-flip .ivrt-panel__word {
    transform: translate3d(0, 26px, 0) rotateX(-75deg);
}

.ivrt-effect-soft-flip .ivrt-panel__word.is-current {
    transform: translate3d(0, 0, 0) rotateX(0deg);
}

.ivrt-effect-soft-flip .ivrt-panel__word.is-leaving {
    opacity: 0;
    transform: translate3d(0, -22px, 0) rotateX(70deg);
}

/* Flou progressif */
.ivrt-effect-blur-swap .ivrt-panel__word {
    transform: translate3d(0, 14px, 0) scale(0.97);
    filter: blur(18px);
}

.ivrt-effect-blur-swap .ivrt-panel__word.is-current {
    transform: translate3d(0, 0, 0) scale(1);
    filter: blur(0);
}

.ivrt-effect-blur-swap .ivrt-panel__word.is-leaving {
    opacity: 0;
    transform: translate3d(0, -10px, 0) scale(1.025);
    filter: blur(16px);
}

@media (max-width: 767px) {
    .ivrt-panel {
        min-height: min(var(--ivrt-panel-height), 330px);
    }

    .ivrt-panel__layout {
        width: min(100% - 28px, 720px);
        padding: 65px 0;
    }

    .ivrt-panel__lead {
        margin-bottom: 10px;
        font-size: clamp(18px, 5vw, 23px);
    }

    .ivrt-panel__window {
        min-height: 2.25em;
        font-size: clamp(40px, 13vw, 68px);
        line-height: 1.05;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ivrt-panel__word {
        transition-duration: 1ms !important;
    }
}