.scroll-through-section {
    width: 100%;
    background: linear-gradient(180deg, #7B1F27 0%, #BB302E 50%, #EFC27D 100%);
    padding: 110px 0 110px 0;
    position: relative;
    overflow: visible;
}

/* Floating Icons */
.floating-sofa-plant {
    position: absolute;
    top: -100px;
    left: 2%;
    width: 400px;
    max-width: 28vw;
    height: auto;
    z-index: 10;
    filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.25));
    animation: floatSubtleLeft 6s ease-in-out infinite;
    pointer-events: none;
}

.floating-long-light {
    position: absolute;
    top: -160px;
    right: 5%;
    height: 840px;
    width: auto;
    z-index: 10;
    filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.2));
    animation: floatSubtleRight 7s ease-in-out 1s infinite;
    pointer-events: none;
}

@keyframes floatSubtleLeft {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-8px) rotate(-1deg);
    }
}

@keyframes floatSubtleRight {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-6px) rotate(1deg);
    }
}

/* Main Rounded Card */
.scroll-through-card {
    background-color: #D09EA1;
    border-radius: 44px;
    padding: 20px 32px 20px 32px;
    margin: 0 auto;
    max-width: 880px;
    position: relative;
    z-index: 5;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    text-align: center;
    overflow: hidden;
}

.scroll-through-heading {
    color: #ffffff;
    font-family: var(--font-californian, 'Californian FB', Georgia, serif);
    font-size: 48px;
    font-weight: 300;
    margin-bottom: 20px;
    line-height: 1.15;
}

.scroll-through-description {
    color: #ffffff;
    font-family: var(--font-hyundai-text, 'Hyundai Sans Text Office', sans-serif);
    font-size: 15px;
    font-weight: 400;
    line-height: 1.65;
    max-width: 620px;
    margin: 0 auto 44px auto;
}

/* 3D Pipe / Cylindrical Bend Carousel */
.cylinder-carousel-wrapper {
    position: relative;
    width: 100%;
    margin-top: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    user-select: none;
}

.cylinder-carousel-scene {
    width: 100%;
    max-width: 780px;
    height: 360px;
    perspective: 1100px;
    perspective-origin: 50% 50%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cylinder-carousel-pivot {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cylinder-card {
    position: absolute;
    width: 220px;
    height: 320px;
    border-radius: 20px;
    background: #ffffff;
    overflow: hidden;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
    border: 4px solid #ffffff;
    transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.6s ease;
    will-change: transform, opacity;
    cursor: pointer;
}

.cylinder-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.cylinder-card-caption {
    position: absolute;
    bottom: 0;
    inset-x: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.85) 100%);
    color: #ffffff;
    font-family: var(--font-hyundai-text, 'Hyundai Sans Text Office', sans-serif);
    font-size: 13px;
    font-weight: 700;
    padding: 24px 12px 14px 12px;
    text-align: center;
    letter-spacing: 0.5px;
}

/* Nav Buttons */
.cylinder-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 86px;
    border-radius: 40px;
    background: rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #ffffff;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 50;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.cylinder-nav-btn:hover {
    background: rgba(255, 255, 255, 0.88);
    color: #7B1F27;
    transform: translateY(-50%) scale(1.06);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.cylinder-nav-btn:active {
    transform: translateY(-50%) scale(0.96);
}

.cylinder-nav-prev {
    left: 80px;
}

.cylinder-nav-next {
    right: 80px;
}

/* ==========================================
   EXPERTS ROW & LEFT COLUMN STYLES
   ========================================== */

.experts-content-row {
    margin-top: 64px;
    position: relative;
    z-index: 5;
}

.experts-left-container {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.experts-heading {
    color: #ffffff;
    font-family: var(--font-californian, 'Californian FB', Georgia, serif);
    font-size: 44px;
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: 16px;
    text-align: left;
}

.experts-description {
    color: rgba(255, 255, 255, 0.9);
    font-family: var(--font-hyundai-text, 'Hyundai Sans Text Office', sans-serif);
    font-size: 15px;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 28px;
    max-width: 540px;
    text-align: left;
}

.experts-form-card {
    background: rgba(200, 171, 171, 0.18);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 36px;
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-sizing: border-box;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.experts-form {
    margin-bottom: 24px;
}

/* ==========================================
   EXPERTS RIGHT COLUMN ACCORDION STYLES
   ========================================== */

.experts-list-container {
    display: flex;
    flex-direction: column;
    gap: 50px;
    padding-top: 10px;
}

.expert-item {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    padding: 6px 0;
    user-select: none;
}

.expert-avatar-wrap {
    width: 65px;
    height: 65px;
    flex-shrink: 0;
    border-radius: 50%;
    overflow: hidden;
    background-color: #FFE3B7;
    transition: width 0.45s cubic-bezier(0.25, 1, 0.5, 1), height 0.45s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.3s ease;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
}

.expert-item.active .expert-avatar-wrap {
    width: 140px;
    height: 140px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.expert-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.expert-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 8px;
    flex-grow: 1;
}

.expert-name {
    color: #ffffff;
    font-family: var(--font-californian, 'Californian FB', Georgia, serif);
    font-size: 26px;
    font-weight: 400;
    margin: 0;
    line-height: 1.2;
    transition: font-size 0.4s ease, margin 0.3s ease;
}

.expert-item.active .expert-name {
    font-size: 34px;
    margin-bottom: 8px;
}

.expert-description-collapse {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.45s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.35s ease, margin 0.3s ease;
}

.expert-item.active .expert-description-collapse {
    max-height: 250px;
    opacity: 1;
}

.expert-description-text {
    color: rgba(255, 255, 255, 0.92);
    font-family: var(--font-hyundai-text, 'Hyundai Sans Text Office', sans-serif);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.6;
    margin: 0;
    max-width: 420px;
}

/* ==========================================
   3RD INNER SECTION: SOFA BG & VIDEO BOX
   ========================================== */

.sofa-video-section-row {
    margin-top: 88px;
    position: relative;
    z-index: 5;
}

.sofa-video-box {
    position: relative;
    width: 100%;
    min-height: 480px;
    background-image: url('../images/icons/sofa_bg.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 40px;
    padding: 48px 40px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    overflow: visible;
}

/* Floating Sofa Image */
.floating-sofa-top {
    position: absolute;
    top: -75px;
    left: -20px;
    width: 320px;
    max-width: 35vw;
    height: auto;
    z-index: 15;
    filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.3));
    animation: floatSubtleLeft 6s ease-in-out infinite;
    pointer-events: none;
}

/* Video Player Container */
.video-player-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

.video-player-box {
    position: relative;
    width: 100%;
    max-width: 480px;
    height: 300px;
    border-radius: 20px;
    overflow: hidden;
    background: #111111;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.video-thumbnail-overlay {
    position: absolute;
    inset: 0;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.video-player-box.is-playing .video-thumbnail-overlay {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.video-thumbnail-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.showcase-video-element {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Action Buttons (Outline Play / Pause) */
.video-action-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: none;
    border: none;
    color: #ffffff;
    font-size: 64px;
    line-height: 1;
    cursor: pointer;
    z-index: 10;
    padding: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
}

.video-action-btn:hover {
    transform: translate(-50%, -50%) scale(1.12);
}

.video-action-btn.pause-btn {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.video-player-box.is-playing:hover .video-action-btn.pause-btn {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Caption Text */
.video-caption-text {
    color: #ffffff;
    font-family: var(--font-hyundai-text, 'Hyundai Sans Text Office', sans-serif);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.55;
    margin-top: 16px;
    max-width: 460px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* ==========================================
   4TH INNER SECTION: VISION TO LIFE FORM & CAPTION
   ========================================== */

.vision-bottom-section-row {
    margin-top: 88px;
    position: relative;
    z-index: 5;
}

.vision-bottom-heading {
    color: #ffffff;
    font-family: var(--font-californian, 'Californian FB', Georgia, serif);
    font-size: 44px;
    font-weight: 300;
    line-height: 1.2;
    margin-bottom: 28px;
    text-align: center;
}

.vision-horizontal-form {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
}

.vision-pill-input {
    width: 100%;
    height: 48px;
    background-color: #99685B;
    border: none;
    border-radius: 50px;
    padding: 0 20px;
    text-align: center;
    color: #ffffff;
    font-family: var(--font-hyundai-text, 'Hyundai Sans Text Office', sans-serif);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    outline: none;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    box-sizing: border-box;
}

.vision-pill-input::placeholder {
    color: rgba(255, 255, 255, 0.95);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.vision-pill-input:focus {
    background-color: #88594d;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.vision-pill-submit {
    width: 200px;
    height: 48px;
    background-color: #ffffff;
    border: none;
    border-radius: 50px;
    color: #5C1B20;
    font-family: var(--font-hyundai-text, 'Hyundai Sans Text Office', sans-serif);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.vision-pill-submit:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.vision-bottom-description {
    color: #5C1B20;
    font-family: var(--font-hyundai, 'Hyundai Sans', 'Hyundai Sans Text Office', sans-serif);
    font-size: 15px;
    font-weight: 300;
    line-height: 1.65;
    max-width: 820px;
    margin: 36px auto 0 auto;
    text-align: center;
}

@media (max-width: 991px) {
    .scroll-through-section {
        padding: 80px 0;
    }

    .scroll-through-card {
        padding: 36px 24px 28px 24px;
        border-radius: 36px;
    }

    .scroll-through-heading {
        font-size: 38px;
    }

    .scroll-through-description {
        font-size: 14px;
        margin-bottom: 36px;
    }

    .cylinder-carousel-scene {
        height: 310px;
    }

    .cylinder-card {
        width: 180px;
        height: 270px;
    }

    .cylinder-nav-prev {
        left: 20px;
    }

    .cylinder-nav-next {
        right: 20px;
    }

    .cylinder-nav-btn {
        width: 38px;
        height: 72px;
        font-size: 18px;
    }

    .experts-content-row {
        margin-top: 48px;
    }

    .experts-heading {
        font-size: 36px;
    }

    .experts-description {
        font-size: 14px;
    }

    .experts-form-card {
        padding: 28px 24px;
        border-radius: 28px;
    }

    .expert-item.active .expert-avatar-wrap {
        width: 110px;
        height: 110px;
    }

    .expert-item.active .expert-name {
        font-size: 28px;
    }

    .sofa-video-box {
        padding: 36px 24px;
        min-height: auto;
    }

    .floating-sofa-top {
        width: 240px;
        top: -50px;
        left: -10px;
    }

    .video-player-box {
        height: 250px;
    }

    .vision-bottom-section-row {
        margin-top: 64px;
    }

    .vision-bottom-heading {
        font-size: 34px;
        margin-bottom: 22px;
    }

    .vision-bottom-description {
        font-size: 14px;
        margin-top: 28px;
    }
}

@media (max-width: 575px) {
    .scroll-through-section {
        padding: 60px 0;
    }

    .scroll-through-card {
        padding: 28px 16px 24px 16px;
        border-radius: 28px;
    }

    .scroll-through-heading {
        font-size: 30px;
    }

    .scroll-through-description {
        font-size: 13px;
        margin-bottom: 28px;
    }

    .cylinder-carousel-scene {
        height: 270px;
    }

    .cylinder-card {
        width: 150px;
        height: 230px;
    }

    .cylinder-nav-btn {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .experts-content-row {
        margin-top: 36px;
    }

    .experts-heading {
        font-size: 28px;
    }

    .experts-description {
        font-size: 13px;
    }

    .experts-form-card {
        padding: 24px 16px;
        border-radius: 24px;
    }

    .expert-avatar-wrap {
        width: 50px;
        height: 50px;
    }

    .expert-item.active .expert-avatar-wrap {
        width: 90px;
        height: 90px;
    }

    .expert-name {
        font-size: 22px;
    }

    .expert-item.active .expert-name {
        font-size: 24px;
    }

    .expert-description-text {
        font-size: 12px;
    }

    .sofa-video-box {
        padding: 28px 16px;
        border-radius: 28px;
    }

    .floating-sofa-top {
        width: 180px;
        top: -35px;
        left: -5px;
    }

    .video-player-box {
        height: 210px;
    }

    .video-action-btn {
        font-size: 48px;
    }

    .video-caption-text {
        font-size: 12px;
    }

    .vision-bottom-section-row {
        margin-top: 48px;
    }

    .vision-bottom-heading {
        font-size: 26px;
        margin-bottom: 18px;
    }

    .vision-pill-input,
    .vision-pill-submit {
        height: 42px;
        font-size: 11px;
    }

    .vision-pill-input::placeholder {
        font-size: 10px;
    }

    .vision-pill-submit {
        width: 160px;
    }

    .vision-bottom-description {
        font-size: 12px;
        margin-top: 22px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .floating-sofa-plant,
    .floating-long-light,
    .floating-sofa-top {
        animation: none;
    }

    .cylinder-card {
        transition: none;
    }

    .expert-avatar-wrap,
    .expert-description-collapse {
        transition: none;
    }
}