:root {
    --gap: 24px;
    --peek: 180px;
    --radius: 24px;
    --track-h: 8px;
    --thumb-min: 64px;
    --transition: 420ms cubic-bezier(.22,.61,.36,1);
    --card-h: 340px;
}

.peek-section {
    position: relative;
    overflow: hidden;
    padding: 64px 0;
}

/**
 * Ważne:
 * - zaczynamy w containerze z lewej
 * - ale prawa strona ma wyjść do końca viewportu
 */
.peek-shell {
    position: relative;
    margin-left: calc((100vw - min(1320px, 100vw - 32px)) / 2);
    padding-left: 0;
    width: calc(100vw - ((100vw - min(1320px, 100vw - 32px)) / 2));
}

@media (max-width: 1399.98px) {
    .peek-shell {
    margin-left: 12px;
    width: calc(100vw - 12px);
    }
}

.peek-stage {
    position: relative;
    overflow: hidden;
    user-select: none;
}

.peek-track {
    display: flex;
    gap: var(--gap);
    will-change: transform;
    transition: transform var(--transition);
    padding-right: 24px;
}

.peek-track.is-dragging,
.peek-stage.is-wheel-scrolling .peek-track {
    transition: transform 260ms ease;
}

.peek-card {
    position: relative;
    flex: 0 0 var(--card-w);
    height: var(--card-h);
    border-radius: var(--radius);
    overflow: hidden;
    background: linear-gradient(145deg, #222834 0%, #151922 100%);
    box-shadow: 0 20px 60px rgba(0,0,0,.35);
    transform: translateZ(0);
}

.peek-card__media {
    position: absolute;
    inset: 0;
    background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.18), transparent 30%),
    linear-gradient(135deg, #5b7cff, #7a32ff 55%, #ff4f8b);
    opacity: .95;
}

.peek-card__body {
    position: absolute;
    inset: auto 0 0 0;
    padding: 28px;
    background: linear-gradient(to top, rgba(7,10,16,.88), rgba(7,10,16,.1));
    z-index: 2;
}

/**
 * Overlay po prawej:
 * - daje efekt "peek"
 * - lekko wygasza 3. element
 * - nie zabija całkiem czytelności
 */
.peek-stage::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: calc(var(--peek) + 72px);
    height: 100%;
    pointer-events: none;
    z-index: 5;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    mask-image: linear-gradient(
    to left,
    rgba(0,0,0,1) 0%,
    rgba(0,0,0,.85) 28%,
    rgba(0,0,0,.35) 62%,
    rgba(0,0,0,0) 100%
    );
    -webkit-mask-image: linear-gradient(
    to left,
    rgba(0,0,0,1) 0%,
    rgba(0,0,0,.85) 28%,
    rgba(0,0,0,.35) 62%,
    rgba(0,0,0,0) 100%
    );
    background: linear-gradient(
    to left,
    rgba(15,17,21,.72) 0%,
    rgba(15,17,21,.42) 45%,
    rgba(15,17,21,0) 100%
    );
}

.peek-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 22px;
    padding-right: 24px;
}

.peek-nav {
    display: inline-flex;
    gap: 10px;
    flex-shrink: 0;
}

.peek-btn {
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255,255,255,.14);
    background: rgba(255,255,255,.06);
    color: #fff;
    border-radius: 999px;
    display: inline-grid;
    place-items: center;
    transition: .2s ease;
}

.peek-btn:hover:not(:disabled) {
    background: rgba(255,255,255,.12);
    transform: translateY(-1px);
}

.peek-btn:disabled {
    opacity: .4;
    cursor: not-allowed;
}

.peek-progress {
    position: relative;
    height: 40px;
    display: flex;
    align-items: center;
    flex: 1 1 auto;
    min-width: 0;
}

.peek-progress__track {
    position: relative;
    width: 100%;
    height: var(--track-h);
    border-radius: 999px;
    background: rgba(255,255,255,.10);
    overflow: hidden;
}

.peek-progress__fill {
    position: absolute;
    inset: 0 auto 0 0;
    width: 0;
    background: linear-gradient(90deg, rgba(255,255,255,.22), rgba(255,255,255,.1));
    pointer-events: none;
}

.peek-progress__thumb {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translate(0, -50%);
    width: 120px;
    height: 18px;
    border-radius: 999px;
    background: #fff;
    cursor: grab;
    box-shadow: 0 8px 24px rgba(0,0,0,.25);
    touch-action: none;
}

.peek-progress__thumb.is-dragging {
    cursor: grabbing;
}

.peek-meta {
    font-size: .9rem;
    color: rgba(255,255,255,.65);
    min-width: 72px;
    text-align: right;
}

@media (max-width: 991.98px) {
    :root {
    --peek: 120px;
    --gap: 18px;
    --card-h: 300px;
    }

    .peek-controls {
    gap: 12px;
    }
}

@media (max-width: 767.98px) {
    :root {
    --peek: 86px;
    --gap: 16px;
    --card-h: 280px;
    }

    .peek-stage::after {
    width: calc(var(--peek) + 40px);
    }

    .peek-controls {
    flex-wrap: wrap;
    }

    .peek-progress {
    order: 3;
    width: 100%;
    flex-basis: 100%;
    }
}