/**
 * bw_slider frontend styles.
 *
 * Colours and timing are custom properties so the host layout can adapt
 * them from its own stylesheet without overriding rules.
 */

.bwslider {
    --bwslider-accent: #1268ff;
    --bwslider-accent-text: #ffffff;
    --bwslider-duration: 900ms;
    --bwslider-layer-duration: 700ms;
    --bwslider-ease: cubic-bezier(0.22, 1, 0.36, 1);

    position: relative;
    overflow: hidden;
}

.bwslider--full { height: 100vh; }
.bwslider--large { height: min(720px, 85vh); }
.bwslider--medium { height: min(520px, 70vh); }

/* Slides --------------------------------------------------------------------- */

.bwslider__track {
    position: relative;
    height: 100%;
}

.bwslider__slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    visibility: hidden;
    z-index: 1;
}

.bwslider__slide.is-active {
    visibility: visible;
    z-index: 2;
}

/* Fade transition. */
.bwslider--fade .bwslider__slide {
    opacity: 0;
    transition: opacity var(--bwslider-duration) ease, visibility var(--bwslider-duration);
}

.bwslider--fade .bwslider__slide.is-active {
    opacity: 1;
}

/* Slide transition: incoming and outgoing move together. */
.bwslider--slide .bwslider__slide {
    transform: translateX(100%);
    transition: transform var(--bwslider-duration) var(--bwslider-ease), visibility var(--bwslider-duration);
}

.bwslider--slide .bwslider__slide.is-active {
    transform: translateX(0);
}

.bwslider--slide .bwslider__slide.is-leaving {
    visibility: visible;
    transform: translateX(-30%);
    z-index: 1;
}

.bwslider--slide .bwslider__slide.is-leaving.is-reverse {
    transform: translateX(30%);
}

.bwslider--slide .bwslider__slide.is-entering-reverse {
    transform: translateX(-100%);
}

/* Media ----------------------------------------------------------------------- */

.bwslider__media {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.bwslider__image,
.bwslider__video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Ken Burns: slow drift while a slide is active. */
.bwslider--kenburns .bwslider__slide.is-active .bwslider__image {
    animation: bwslider-kenburns 9s var(--bwslider-ease) both;
}

@keyframes bwslider-kenburns {
    from { transform: scale(1); }
    to { transform: scale(1.09) translate(1.5%, -1%); }
}

/* Legibility layer between media and text. */
.bwslider__scrim {
    position: absolute;
    inset: 0;
}

.bwslider__slide--dark .bwslider__scrim {
    background: linear-gradient(100deg, rgba(2, 10, 24, 0.72) 15%, rgba(2, 10, 24, 0.25) 60%, rgba(2, 10, 24, 0.05));
}

.bwslider__slide--light .bwslider__scrim {
    background: linear-gradient(100deg, rgba(255, 255, 255, 0.82) 15%, rgba(255, 255, 255, 0.35) 60%, rgba(255, 255, 255, 0.05));
}

/* Content layers --------------------------------------------------------------- */

.bwslider__content {
    position: relative;
    z-index: 3;
    width: min(1180px, calc(100% - 48px));
    margin-inline: auto;
}

.bwslider__slide--center .bwslider__content { text-align: center; }
.bwslider__slide--right .bwslider__content { text-align: right; }

.bwslider__slide--dark .bwslider__content { color: #fff; }
.bwslider__slide--light .bwslider__content { color: #0b1526; }

.bwslider__eyebrow {
    display: inline-block;
    margin-bottom: 14px;
    padding: 7px 14px;
    border: 1px solid currentColor;
    border-radius: 999px;
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.85;
}

.bwslider__title {
    margin: 0;
    max-width: 16em;
    font-size: clamp(2rem, 5.2vw, 3.8rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.bwslider__slide--center .bwslider__title { margin-inline: auto; }
.bwslider__slide--right .bwslider__title { margin-left: auto; }

.bwslider__text {
    margin: 18px 0 0;
    max-width: 44em;
    font-size: clamp(1rem, 1.6vw, 1.15rem);
    line-height: 1.6;
    opacity: 0.9;
}

.bwslider__slide--center .bwslider__text { margin-inline: auto; }
.bwslider__slide--right .bwslider__text { margin-left: auto; }

.bwslider__button {
    display: inline-block;
    margin-top: 26px;
    padding: 14px 30px;
    border-radius: 999px;
    background: var(--bwslider-accent);
    color: var(--bwslider-accent-text);
    font-weight: 700;
    text-decoration: none;
    transition: transform 250ms var(--bwslider-ease), filter 250ms;
}

.bwslider__button:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

/* Staggered entrance of the text layers on activation. */
.bwslider__layer {
    opacity: 0;
    transform: translateY(26px);
}

.bwslider__slide.is-active .bwslider__layer {
    opacity: 1;
    transform: none;
    transition: opacity var(--bwslider-layer-duration) ease,
        transform var(--bwslider-layer-duration) var(--bwslider-ease);
}

.bwslider__slide.is-active .bwslider__layer:nth-child(1) { transition-delay: 250ms; }
.bwslider__slide.is-active .bwslider__layer:nth-child(2) { transition-delay: 400ms; }
.bwslider__slide.is-active .bwslider__layer:nth-child(3) { transition-delay: 550ms; }
.bwslider__slide.is-active .bwslider__layer:nth-child(4) { transition-delay: 700ms; }

/* Controls ---------------------------------------------------------------------- */

.bwslider__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    width: 50px;
    height: 50px;
    display: grid;
    place-items: center;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    background: rgba(10, 20, 40, 0.35);
    color: #fff;
    font-size: 1.15rem;
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: background 200ms, transform 200ms;
}

.bwslider__arrow:hover { background: var(--bwslider-accent); }
.bwslider__arrow--prev { left: 22px; }
.bwslider__arrow--next { right: 22px; }

.bwslider__dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    display: flex;
    gap: 8px;
}

.bwslider__dot {
    width: 26px;
    height: 5px;
    padding: 0;
    border: 0;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: background 250ms, width 250ms var(--bwslider-ease);
}

.bwslider__dot.is-active {
    width: 44px;
    background: var(--bwslider-accent);
}

@media (max-width: 700px) {
    .bwslider__arrow { display: none; }
}