/* コンセプト背景画像をカバーで表示 */
.concept-hero-image {
    position: absolute;
    inset: 0;
    width: 100vw;
    height: 100vh;
        background: url("../../images/home/concept/chef-plating.jpg") center center / cover no-repeat;
    z-index: 1;
    pointer-events: none;
}

/* オーバーレイで暗くする場合 */
.concept-backdrop {
    position: absolute;
    inset: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.45);
    z-index: 2;
    pointer-events: none;
}

.concept-content-wrapper {
    position: relative;
    z-index: 10;
}
/* --- CONCEPTOセクション中央寄せ・白文字・大きく・影付き --- */
.concept-content-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    text-align: center;
}

.section-title-es {
    color: #fff !important;
    font-size: 5vw !important;
    font-weight: 900 !important;
    letter-spacing: 0.15em;
    text-shadow: 0 4px 24px rgba(0,0,0,0.7), 0 1px 0 #333;
    margin-bottom: 16px;
}

.section-title-sub,
.concept-description {
    color: #fff !important;
    font-size: 1.1rem;
    font-weight: 400;
    text-shadow: 0 2px 8px rgba(0,0,0,0.7);
    margin-bottom: 8px;
}

.concept-description {
    margin-top: 8px;
    line-height: 2;
}
/* ===================================
   Part: Section - Concept
   ================================== */
.concept-hero {
    position: relative;
    min-height: 20vh;
    /* Mobile default */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    /* Parallax effect base */
    perspective: 1000px;
}

@media (min-width: 900px) {
    .concept-hero {
        min-height: 80vh;
        /* PC only */
    }
}

.concept-hero-image {
    position: absolute;
    inset: 0;
    z-index: 1;
    transform: scale(1.1);
    /* Slight zoom for movement */
    transition: transform 0.1s ease-out;
}

.concept-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.concept-backdrop {
    position: absolute;
    inset: 0;
    background: transparent;
    z-index: 2;
}

.concept-content-wrapper {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 800px;
    padding: var(--space-xl) var(--space-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.concept-description {
    font-size: 1.15rem;
    line-height: 2.2;
    color: var(--color-light);
    /* margin-bottom: var(--space-xl); */
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
    font-weight: 500;
    /* Premium text styling */
    font-feature-settings: "palt";
    letter-spacing: 0.05em;
}

/* Button Styling */
.concept-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    color: var(--color-light);
    padding: 1.2rem 3rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.concept-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-light);
    transform: translateX(-101%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: -1;
}

.concept-btn:hover {
    color: var(--color-dark);
    border-color: var(--color-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.concept-btn:hover::before {
    transform: translateX(0);
}

.concept-btn-arrow {
    font-size: 1.2rem;
    transition: transform 0.4s ease;
}

.concept-btn:hover .concept-btn-arrow {
    transform: translateX(6px);
}

@media (max-width: 900px) {
    /* .concept-hero {
        min-height: 50vh;
    } */

    .concept-description {
        font-size: clamp(0.78rem, 3.5vw, 1rem);
        line-height: 1.9;
        text-align: left;
        padding: 0 1rem;
    }
}