/* Base Styles */
:root {
    --color-primary: #0056b3;
    /* 企業カラーイメージ */
    --color-accent: #f0ad4e;
    /* ゴールド/オレンジ系 */
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #ffffff;
    --color-bg-light: #f9f9f9;
    --color-white: #ffffff;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Noto Sans JP', sans-serif;

    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;
    --spacing-xl: 120px;

    --border-radius: 8px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.8;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 700;
}

.section {
    padding: var(--spacing-xl) 0;
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section__title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.05em;
}

.section__subtitle {
    color: var(--color-text-light);
    font-size: 1rem;
}

/* Button Component */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-heading);
    letter-spacing: 0.05em;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn--primary:hover {
    background-color: #004494;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 86, 179, 0.3);
}

.btn--secondary {
    background-color: var(--color-accent);
    color: var(--color-white);
}

.btn--secondary:hover {
    background-color: #ec971f;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(240, 173, 78, 0.3);
}

.btn--outline {
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
}

.btn--outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn--nav {
    padding: 8px 24px;
    font-size: 0.9rem;
    background-color: var(--color-text);
    color: var(--color-white);
}

.btn--hero {
    background-color: var(--color-white);
    color: var(--color-text);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.btn--sm {
    padding: 8px 20px;
    font-size: 0.9rem;
    width: 100%;
    margin-bottom: 8px;
    display: block;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo__img {
    height: 40px;
    /* ヘッダーの高さに合わせて調整 */
    width: auto;
}

.logo__text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

.nav ul {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 32px;
}

.nav a {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.9rem;
}

.hamburger {
    display: none;
    /* PCでは非表示 */
}

/* Hero Section */
.hero {
    position: relative;
    margin-top: 80px;
    /* ヘッダーの高さ分、セクション全体を下げる */
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    top: 0;
    /* 本来の開始位置に戻す */
    left: 0;
    width: 100%;
    height: 100%;
    /* 全体の高さを維持 */
    z-index: -1;
}

.hero__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero__bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    /* 画像を少し暗くして文字を読みやすく */
}

.hero__product-name {
    display: inline-block;
    background-color: rgba(0, 0, 0, 0.6);
    padding: 8px 24px;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 0.1em;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(5px);
}

.hero__content {
    text-align: center;
    max-width: 800px;
    padding: 20px;
    animation: fadeIn 1.5s ease-out;
}

.hero__title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 24px;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.hero__title-sub {
    font-family: var(--font-body);
    font-size: 1.5rem;
    font-weight: 500;
    display: block;
    margin-bottom: 16px;
}

.hero__text {
    font-size: 1.2rem;
    margin-bottom: 40px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

/* Concept Section */
.concept {
    background-color: var(--color-bg-light);
    position: relative;
    overflow: hidden;
}


.concept .container {
    position: relative;
    z-index: 1;
}

.concept__text {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    text-align: center;
    line-height: 2;
}

.concept__text p {
    margin-bottom: 24px;
}

.concept__3d-online {
    margin-top: 64px;
    padding: 60px 40px;
    background: linear-gradient(135deg, var(--color-primary), #003366);
    color: var(--color-white);
    border-radius: var(--border-radius);
    display: flex;
    /* 2カラム化 */
    align-items: center;
    gap: 48px;
    box-shadow: var(--shadow);
    text-align: left;
}

.concept__3d-logo {
    flex: 0 0 250px;
}

.concept__3d-logo img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.concept__3d-content {
    flex: 1;
}

.concept__3d-title {
    font-size: 2.2rem;
    margin-bottom: 20px;
    letter-spacing: 0.1em;
    font-family: var(--font-heading);
}

.concept__3d-text {
    font-size: 1.2rem;
    opacity: 0.95;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .concept__3d-online {
        flex-direction: column;
        text-align: center;
        padding: 40px 20px;
    }

    .concept__3d-logo {
        flex: none;
        width: 100%;
        max-width: 200px;
        margin: 0 auto;
    }

    .concept__3d-title {
        font-size: 1.6rem;
    }
}

/* Video Section */
.video-promo {
    background-color: var(--color-bg);
}

.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding-top: 56.25%;
    /* 16:9 Aspect Ratio */
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.text-center {
    text-align: center;
}

/* Lineup Section */
.lineup__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
}

.card__image {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.card:hover .card__image img {
    transform: scale(1.05);
}

.card__month {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(255, 255, 255, 0.9);
    padding: 8px 16px;
    font-family: var(--font-heading);
    font-weight: 700;
    border-radius: 4px;
    color: var(--color-text);
}

.card__body {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card__title {
    font-size: 1.2rem;
    margin-bottom: 16px;
    min-height: 3rem;
    /* タイトルの高さ揃え */
}

.card__desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 24px;
    flex-grow: 1;
}

.card__actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Finished Card Styles */
.card--finished {
    opacity: 0.8;
}

.card--finished .card__image {
    filter: grayscale(80%);
}

.card__overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(50, 50, 50, 0.8);
    color: #fff;
    padding: 8px 24px;
    font-size: 1.2rem;
    font-weight: 700;
    border: 2px solid #fff;
    z-index: 10;
}

/* Featured Card (Season Pass) */
.card--featured {
    border: 3px solid var(--color-accent);
    position: relative;
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.2);
    grid-column: 1 / -1;
    /* 横いっぱいに広げる */
    display: flex !important;
    flex-direction: row !important;
}

.card--featured .card__image {
    flex: 1;
    height: auto;
    min-height: 300px;
}

.card--featured .card__body {
    flex: 1.2;
    padding: 40px;
    background: linear-gradient(to right, #fff, #fffafb);
}

.card__badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 10px 20px;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    z-index: 20;
    font-size: 1.1rem;
    animation: pulse 2s infinite;
}

.card--featured .card__title {
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.card--featured .card__price-box {
    margin-bottom: 24px;
    padding: 20px;
    background: #fbfbfb;
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
}

.card__price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.card__price-label {
    font-weight: 700;
    color: var(--color-text);
}

.card__price-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-accent);
    font-family: var(--font-heading);
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

@media (max-width: 992px) {
    .card--featured {
        flex-direction: column !important;
    }
}

.btn--disabled {
    background-color: #ccc;
    color: #666;
    cursor: not-allowed;
    pointer-events: none;
    box-shadow: none;
}

/* Updated About Section */
.about__block {
    margin-bottom: var(--spacing-lg);
}

.about__block:last-child {
    margin-bottom: 0;
}

.about__subtitle {
    text-align: center;
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.about__subtitle::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background-color: var(--color-accent);
    margin: 8px auto 0;
}

.about__inner {
    display: flex;
    align-items: center;
    gap: 64px;
}

.about__inner--reverse {
    flex-direction: row-reverse;
}

.about__content {
    flex: 1;
}

.about__item-title {
    font-size: 1.4rem;
    margin-bottom: 16px;
    font-weight: 700;
}

.about__company-name {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.about__text {
    margin-bottom: 32px;
    text-align: justify;
}

.about__links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.about__links .btn {
    width: auto;
    min-width: 200px;
    margin-bottom: 0;
}

.about__image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about__image--dual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    background: none;
    box-shadow: none;
    overflow: visible;
}

.about__image--dual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.section__title--left {
    text-align: left;
}

/* VR Goggle Section */
.vr-goggle {
    background-color: var(--color-bg-light);
}

.vr-goggle__inner {
    display: flex;
    align-items: center;
    gap: 64px;
    max-width: 1000px;
    margin: 0 auto;
}

.vr-goggle__image {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.vr-goggle__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
}

.vr-goggle__content {
    flex: 1;
}

.vr-goggle__title {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--color-primary);
    font-weight: 700;
}

.vr-goggle__text {
    margin-bottom: 32px;
    line-height: 1.8;
}

.vr-goggle__specs {
    margin-bottom: 24px;
    font-size: 0.9rem;
    background-color: #fff;
    padding: 16px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.vr-goggle__specs h4 {
    font-size: 1rem;
    margin-bottom: 12px;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
    color: var(--color-text-light);
}

.vr-goggle__specs dl {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.spec-row {
    display: flex;
    border-bottom: 1px dashed #eee;
    padding-bottom: 8px;
}

.spec-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.vr-goggle__specs dt {
    font-weight: 700;
    width: 100px;
    flex-shrink: 0;
    color: var(--color-primary);
}

.vr-goggle__specs dd {
    flex-grow: 1;
}

.vr-goggle__note {
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
    padding: 20px;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
}

.vr-goggle__note-title {
    font-weight: 700;
    margin-bottom: 8px;
    display: block;
}

.sp-only {
    display: none;
}

/* Footer */
.footer {
    background-color: #1a1a1a;
    color: var(--color-white);
    padding: 40px 0;
    text-align: center;
}

.footer__logo {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: 16px;
}

.footer__copyright {
    font-size: 0.8rem;
    color: #888;
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 1024px) {
    .header__container {
        height: 60px;
    }

    /* Hamburger Menu */
    .hamburger {
        display: block;
        width: 30px;
        height: 20px;
        position: relative;
        cursor: pointer;
        z-index: 101;
    }

    .hamburger span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: var(--color-text);
        position: absolute;
        transition: all 0.3s ease;
    }

    .hamburger span:nth-child(1) {
        top: 0;
    }

    .hamburger span:nth-child(2) {
        top: 9px;
    }

    .hamburger span:nth-child(3) {
        top: 18px;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg);
        top: 9px;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg);
        top: 9px;
    }

    /* Mobile Nav */
    .nav {
        display: block;
        /* display: noneを上書き */
        position: fixed;
        top: 0;
        right: -100%;
        /* 画面外へ隠す */
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-white);
        padding: 80px 20px;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 100;
    }

    .nav.active {
        right: 0;
    }

    .nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .nav a {
        font-size: 1.1rem;
    }

    .btn--nav {
        display: inline-block;
        margin-top: 16px;
    }

    .hero {
        margin-top: 60px;
        min-height: 80vh;
        height: auto;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 40px 16px;
    }

    .hero__bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        overflow: hidden;
        z-index: -1;
    }

    .hero__bg img {
        width: auto;
        height: 100%;
        min-width: 100%;
        max-width: none;
        object-fit: cover;
        transform: translateX(0);
        transition: transform 0.1s linear;
    }

    .hero__content {
        padding: 0;
        position: relative;
        z-index: 1;
        width: 100%;
    }

    .hero__title {
        font-size: 2.2rem;
    }

    .about__inner,
    .vr-goggle__inner {
        flex-direction: column;
        gap: 32px;
    }

    .sp-only {
        display: block;
    }

    .section {
        padding: var(--spacing-lg) 0;
    }

    .section__title {
        font-size: 2rem;
    }
}