:root {
    --color-primary: #112233;
    /* Deep Navy */
    --color-accent: #cfa95f;
    /* Gold */
    --color-bg-light: #f9f8f4;
    /* Off-white */
    --color-text-main: #333333;
    --color-text-white: #ffffff;
    --font-serif: 'Noto Serif JP', serif;
    --font-sans: 'Noto Sans JP', sans-serif;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text-main);
    line-height: 1.8;
    background-color: var(--color-bg-light);
}

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

a:hover {
    opacity: 0.7;
}

ul {
    list-style: none;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-narrow {
    max-width: 1000px;
}

.container-medium {
    max-width: 800px;
}

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

.d-block {
    display: block;
}

.text-white {
    color: var(--color-text-white);
}

/* Typography Helper */
.section-title {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    margin-bottom: 3rem;
    line-height: 1.4;
    color: var(--color-primary);
    text-align: center;
}

.section-title .en {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

/* Header */
.header {
    background-color: transparent;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    color: var(--color-text-white);
    padding: 20px 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.nav-list {
    display: flex;
    gap: 30px;
    font-size: 0.9rem;
}

.btn-contact {
    border: 1px solid var(--color-text-white);
    padding: 10px 24px;
    font-size: 0.85rem;
    display: inline-block;
}

/* Hero Section */
.hero {
    position: relative;
    height: 90vh;
    min-height: 600px;
    background: url('https://placehold.co/1920x1080/112233/555?text=Hero+Image+Background') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-text-white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(17, 34, 51, 0.4);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 20px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.btn-primary {
    background-color: var(--color-accent);
    color: #fff;
    padding: 15px 50px;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 2px;
}

/* Intro Section (30 Years) */
.section-intro {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.bg-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 400px;
    font-weight: 700;
    color: rgba(207, 169, 95, 0.08);
    /* Faint gold */
    z-index: -1;
    font-family: var(--font-serif);
    line-height: 1;
}

.intro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 60px;
    text-align: center;
}

.intro-item h3 {
    font-size: 0.9rem;
    color: var(--color-accent);
    margin-bottom: 10px;
    letter-spacing: 0.1em;
}

.intro-item p {
    font-size: 0.9rem;
}

/* Feature Section */
.section-feature {
    padding: 80px 0;
    background-color: #fff;
}

.feature-layout {
    display: flex;
    align-items: center;
    gap: 60px;
}

.feature-image {
    flex: 1;
}

.circle-image {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto;
    border: 10px solid #f2f2f2;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

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

.feature-text {
    flex: 1.2;
}

.feature-list li {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.feature-list .num {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-accent);
    font-weight: bold;
    padding-top: 0px;
}

.feature-list h4 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.feature-list p {
    font-size: 0.95rem;
    color: #666;
}

/* Cast Section */
.section-cast {
    padding: 100px 0;
    background-color: var(--color-bg-light);
}

.cast-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.cast-img {
    height: 250px;
    overflow: hidden;
    margin-bottom: 20px;
    border-radius: 4px;
}

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

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

.cast-card h3 {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 10px;
    font-family: var(--font-serif);
}

.cast-card p {
    font-size: 0.9rem;
    color: #555;
}

/* Safety Section */
.section-safety {
    padding: 100px 0;
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.safety-card {
    background: #fff;
    padding: 40px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    border: 1px solid #eee;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.02);
}

.safety-card .icon span {
    font-size: 3rem;
    line-height: 1;
}

.safety-card h3 {
    margin-bottom: 10px;
    color: var(--color-primary);
}

.safety-card p {
    font-size: 0.9rem;
    color: #666;
}

/* Staff Section */
.section-staff {
    padding: 100px 0;
    background-color: #fff;
}

.staff-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

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

.staff-img {
    height: 350px;
    margin-bottom: 20px;
}

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

.staff-info h3 {
    font-family: var(--font-serif);
    color: var(--color-primary);
    margin-bottom: 15px;
}

/* News Section */
.section-news {
    padding: 100px 0;
}

.news-list {
    border-top: 1px solid #ddd;
}

.news-item {
    display: flex;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid #ddd;
}

.news-item .date {
    font-family: var(--font-serif);
    color: var(--color-primary);
    margin-right: 20px;
    width: 100px;
}

.news-item .label {
    background-color: var(--color-primary);
    color: #fff;
    font-size: 0.7rem;
    padding: 4px 10px;
    margin-right: 20px;
    min-width: 60px;
    text-align: center;
}

.news-item .title {
    flex: 1;
    color: var(--color-text-main);
}

.news-item .title:hover {
    color: var(--color-accent);
}

/* Gallery Carousel */
.section-gallery {
    padding: 80px 0;
    background-color: var(--color-primary);
    overflow: hidden;
}

.gallery-scroller {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    /* Simplified for static */
}

.gallery-scroller img {
    width: 200px;
    height: 200px;
    object-fit: cover;
}

/* Footer */
.footer {
    background-color: #0e1a26;
    color: #fff;
    padding: 80px 0 20px;
}

.footer-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 60px;
}

.contact-box-wrapper {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 80px;
}

.contact-box {
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 300px;
    padding: 30px;
    transition: background 0.3s;
    cursor: pointer;
}

.contact-box:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.contact-box .ja {
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.contact-box .en {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-nav {
    display: flex;
    gap: 20px;
    font-size: 0.8rem;
    opacity: 0.8;
}

.copyright {
    font-size: 0.7rem;
    opacity: 0.5;
}

.sns-links {
    display: flex;
    gap: 15px;
}

.sns-links .icon {
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header-inner {
        padding: 0 20px;
    }

    /* Hamburger Menu Button */
    .hamburger {
        display: block;
        position: relative;
        z-index: 1001;
        /* Above nav overlay */
        width: 30px;
        height: 24px;
        cursor: pointer;
    }

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

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

    .hamburger span:nth-child(2) {
        top: 11px;
    }

    .hamburger span:nth-child(3) {
        bottom: 0;
    }

    /* Hamburger Active State (X shape) */
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg);
        top: 11px;
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg);
        bottom: 11px;
    }

    /* Mobile Nav Overlay */
    .nav {
        display: block;
        /* Ensure it's not 'none' so we can animate/overlay */
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(17, 34, 51, 0.98);
        z-index: 1000;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    body.nav-open .nav {
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }

    .nav-list li a {
        font-size: 1.2rem;
        font-weight: bold;
        color: #fff;
    }

    /* Hide Desktop Button in Header on Mobile */
    .desktop-only {
        display: none !important;
    }

    /* Existing Responsive Styles */
    .hero-title {
        font-size: 2rem;
    }

    .intro-grid {
        grid-template-columns: 1fr;
    }

    .feature-layout {
        flex-direction: column;
    }

    .circle-image {
        width: 300px;
        height: 300px;
    }

    .cast-grid {
        grid-template-columns: 1fr;
    }

    .safety-grid {
        grid-template-columns: 1fr;
    }

    .staff-grid {
        grid-template-columns: 1fr;
    }

    .contact-box-wrapper {
        flex-direction: column;
        align-items: center;
    }

    .contact-box {
        width: 100%;
        max-width: 350px;
    }

    .footer-nav {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
}

@media (min-width: 769px) {
    .hamburger {
        display: none;
    }
}