@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&family=Shippori+Mincho:wght@400;500;700&display=swap');

:root {
    /* Colors */
    --color-primary: #0F172A;
    /* Deep Navy */
    --color-primary-light: #1E293B;
    --color-accent: #D4AF37;
    /* Gold */
    --color-accent-hover: #B59326;
    --color-text-main: #334155;
    --color-text-light: #64748B;
    --color-text-white: #F8FAFC;
    --color-bg-body: #F8FAFC;
    --color-bg-white: #FFFFFF;
    --color-border: #E2E8F0;

    /* Spacing */
    --spacing-xs: 0.5rem;
    /* 8px */
    --spacing-sm: 1rem;
    /* 16px */
    --spacing-md: 2rem;
    /* 32px */
    --spacing-lg: 4rem;
    /* 64px */
    --spacing-xl: 8rem;
    /* 128px */

    /* Typography */
    --font-heading: 'Shippori Mincho', serif;
    --font-body: 'Noto Sans JP', sans-serif;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    /* H1 mainly */

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;

    --transition-base: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-bg-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Scroll Lock when mobile menu is open */
body.menu-open {
    overflow: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul {
    list-style: none;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    line-height: 1.3;
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-size: var(--text-base);
    font-weight: 500;
    letter-spacing: 0.05em;
    border-radius: 0;
    /* Keep square for premium feel or slight radius */
    cursor: pointer;
    transition: var(--transition-base);
    font-family: var(--font-heading);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-white);
    border: 1px solid var(--color-primary);
}

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

.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-text-white);
    border: 1px solid var(--color-accent);
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: var(--transition-base);
    background: transparent;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    /* White with opacity */
    backdrop-filter: blur(10px);
    padding: var(--spacing-xs) 0;
    box-shadow: var(--shadow-md);
}

/* Scrolled Header Text Colors */
.header.scrolled .logo__text,
.header.scrolled .nav__link {
    color: var(--color-primary);
}

.header.scrolled .nav__link:hover {
    color: var(--color-accent);
}

.header.scrolled .btn-nav {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.header.scrolled .btn-nav:hover {
    background-color: var(--color-primary);
    color: var(--color-text-white);
}

/* Hamburger color update on scroll */
.header.scrolled .hamburger,
.header.scrolled .hamburger::before,
.header.scrolled .hamburger::after {
    background-color: var(--color-primary);
}


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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo__image {
    height: 40px;
    width: auto;
}



.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav__link {
    color: var(--color-text-white);
    font-size: var(--text-sm);
    letter-spacing: 0.05em;
    opacity: 0.9;
    transition: color 0.3s ease;
    position: relative;
    /* For absolute positioning of ::after */
}

.nav__link[data-jp]::after {
    content: attr(data-jp);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    font-size: var(--text-sm);
    /* Same size as original */
    white-space: nowrap;
    transition: all 0.3s ease;
    pointer-events: none;
    font-weight: 500;
    color: var(--color-accent);
    /* Make sure it has color */
}

.nav__link[data-jp]:hover {
    color: transparent;
    /* Hide English text */
}

.nav__link[data-jp]:hover::after {
    opacity: 1;
}

/* Scrolled Header Specifics */
.header.scrolled .nav__link[data-jp]::after {
    color: var(--color-accent);
}

.header.scrolled .nav__link[data-jp]:hover {
    color: transparent;
}

.nav__link:hover {
    color: var(--color-accent);
    opacity: 1;
}

.btn-nav {
    border: 1px solid var(--color-text-white);
    padding: 0.5rem 1.5rem;
    transition: var(--transition-base);
}

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

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: var(--color-text-white);
    /* Revert to white */
}

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('images/hamamatsu.jpg');
    background-size: cover;
    background-position: center;
    z-index: -2;
    animation: kenBurns 20s linear infinite alternate;
    will-change: transform;
}

.hero__bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom,
            rgba(15, 23, 42, 0.2) 0%,
            rgba(15, 23, 42, 0.5) 100%);
    /* Moderate Dark Overlay */
    z-index: -1;
}

.hero__content {
    text-align: center;
    max-width: 800px;
    padding: var(--spacing-md);
    /* Individual animations on children */
}

.hero__title {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-white);
    /* White text */
}

.hero__title-sub {
    display: block;
    font-size: var(--text-sm);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-accent);
    /* Keep accent color */
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-body);
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    /* Shadow for readability */
    opacity: 0;
    animation: revealDown 1.2s cubic-bezier(0.2, 1, 0.3, 1) forwards;
    animation-delay: 0.3s;
}

.hero__title-main {
    display: block;
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 500;
    line-height: 1.4;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    opacity: 0;
    animation: revealUp 1.5s cubic-bezier(0.2, 1, 0.3, 1) forwards;
    animation-delay: 0.6s;
}

.hero__desc {
    font-size: clamp(1rem, 2vw, 1.3rem);
    /* Slightly larger max size */
    margin-bottom: 0;
    /* Remove margin as it's the last element */
    opacity: 0;
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    color: var(--color-text-white);
    letter-spacing: 0.05em;
    /* Add some breathing room to text */
    animation: fadeIn 2s ease-out forwards;
    animation-delay: 1.2s;
}

/* Adjust title spacing */
.hero__title {
    margin-bottom: var(--spacing-lg);
    /* More space between title and desc */
}

.hero__actions .btn {
    min-width: 200px;
}

/* Animations */
@keyframes kenBurns {
    0% {
        transform: scale(1);
    }

    100% {
        transform: scale(1.1);
    }
}

@keyframes revealDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

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

@keyframes revealUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* Mobile Menu Button - Hidden mainly, shown in media query (to be added) */
.mobile-menu-btn {
    display: none;
    width: 48px;
    /* クリック領域を確保（推奨サイズ） */
    height: 48px;
    /* クリック領域を確保（推奨サイズ） */
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    /* Essential for z-index */
    z-index: 1200;
    /* Higher than Nav */

    /* アイコンを中央に配置するための設定。 display: flex はメディアクエリへ移動 */
    align-items: center;
    justify-content: center;
    margin-right: -12px;
    /* 右端に寄りすぎないための微調整 */
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-white);
    position: relative;
    transition: var(--transition-base);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-text-white);
    transition: var(--transition-base);
}

.hamburger::before {
    transform: translateY(-8px);
}

.hamburger::after {
    transform: translateY(8px);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--color-primary);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: var(--transition-base);
        z-index: 1100;
        /* Higher than Header, lower than Mobile Menu Btn */
    }

    .nav.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .mobile-menu-btn {
        display: flex;
    }

    /* Keep icons visible and consistent during menu open regardless of header scroll state */
    .mobile-menu-btn.active .hamburger,
    .mobile-menu-btn.active .hamburger::before,
    .mobile-menu-btn.active .hamburger::after {
        background-color: var(--color-text-white) !important;
    }

    .mobile-menu-btn.active .hamburger {
        background-color: transparent;
    }

    .mobile-menu-btn.active .hamburger::before {
        transform: rotate(45deg);
    }

    .mobile-menu-btn.active .hamburger::after {
        transform: rotate(-45deg);
    }

    /* モバイルメニュー展開時は、ヘッダーの状態に関わらず文字を白に固定 */
    .nav.active .nav__link {
        color: var(--color-text-white) !important;
        opacity: 1 !important;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.25rem;
        font-size: var(--text-xs);
        text-transform: uppercase;
        letter-spacing: 0.1em;
    }

    /* 日本語サブテキスト：絶対配置を解除して縦に並べる */
    .nav.active .nav__link[data-jp]::after {
        content: attr(data-jp);
        position: static;
        transform: none;
        opacity: 1 !important;
        font-size: var(--text-lg);
        font-weight: 700;
        color: var(--color-text-white) !important;
        margin-top: 2px;
        display: block;
    }

    /* スクロール時の色の干渉をモバイルメニュー内では無効化 */
    .header.scrolled .nav.active .nav__link[data-jp]::after {
        color: var(--color-text-white) !important;
        opacity: 0.8;
    }

    /* メニュー背景が濃い色（Deep Navy）なので、ロゴも白く反転させて見やすくする */
    body.menu-open .logo__image {
        filter: brightness(0) invert(1);
    }
}

/* Section Colors */
.section-subtitle {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-size: var(--text-base);
}

/* Services / Features */
.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.service-card {
    background-color: var(--color-bg-white);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.service-card__icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-bg-body);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
    transition: var(--transition-base);
}

.service-card:hover .service-card__icon {
    background-color: var(--color-primary);
    color: var(--color-accent);
}

.section-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
}

.service-card__title {
    font-size: var(--text-xl);
    margin-bottom: 0.25rem;
    font-weight: 700;
}

.service-card__desc {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    flex-grow: 1;
    /* Pushes link to bottom */
}


/* Construction Details */
#construction-details {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    background-image: url('images/hamanako.png');
    background-attachment: fixed;
    background-size: cover !important;
    background-position: center center;
    background-repeat: no-repeat;
    position: relative;
    z-index: 1;
    color: var(--color-text-white);
}

#construction-details::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.7);
    z-index: -1;
}

/* モバイル・タブレットでも背景を適切に表示 */
@media (max-width: 1024px) {
    #construction-details {
        background-image: url('images/hamanako_m.jpg');
        background-attachment: scroll;
        background-size: cover !important;
        background-position: center center;
    }

    #construction-details::before {
        background: rgba(15, 23, 42, 0.85);
    }
}

.construction-details {
    margin-top: 0;
    padding-top: 0;
    position: relative;
    z-index: 2;
}

.construction-details__title {
    text-align: center;
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: table;
    margin-left: auto;
    margin-right: auto;
    color: var(--color-text-white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.construction-details__title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    margin: 0.5rem auto 0;
}

.construction-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .construction-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.construction-item {
    background-color: var(--color-bg-white);
    /* padding: var(--spacing-md); Removed padding to let image flush */
    padding-bottom: var(--spacing-md);
    border: none;
    /* Removed border */
    border-radius: var(--radius-lg);
    /* Increased radius */
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    /* Softer shadow */
    transition: var(--transition-base);
    overflow: hidden;
}

.construction-item:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    /* Softer hover shadow */
    transform: translateY(-5px);
    /* Slightly increased lift */
    /* border-color removed */
}

.construction-item__image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

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

.construction-item:hover .construction-item__image img {
    transform: scale(1.05);
}

.construction-item__title {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
    padding: 0 var(--spacing-md);
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Decorative line next to title */
.construction-item__title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.2rem;
    background-color: var(--color-accent);
    border-radius: 2px;
}

.construction-item__desc {
    font-size: var(--text-sm);
    color: var(--color-text-main);
    line-height: 1.6;
    padding: 0 var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    /* Ensure spacing before list */
}

/* Construction Item Sub-list (Badge Style) */
.construction-item__list {
    list-style: none;
    padding: 0 var(--spacing-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.construction-item__list li {
    font-size: var(--text-xs);
    color: var(--color-primary);
    background-color: #F1F5F9;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-weight: 500;
    transition: var(--transition-base);
}

.construction-item__list li:hover {
    background-color: var(--color-border);
}

/* Removed old pseudo-element */



/* Featured Properties Carousel */
.bg-light {
    background-color: #F1F5F9;
    /* Slightly darker than body bg */
}

.container--wide {
    max-width: 1400px;
}

.carousel-container {
    width: 100%;
    margin-top: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    /* For scrollbar space if visible */
}

.carousel {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-xs);
    -webkit-overflow-scrolling: touch;

    /* Hide scrollbar */
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.carousel::-webkit-scrollbar {
    display: none;
}

.property-card {
    flex: 0 0 350px;
    /* Card width */
    background-color: var(--color-bg-white);
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    scroll-snap-align: center;
    transition: var(--transition-base);
    border: 1px solid var(--color-border);
}

.property-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

@media (max-width: 480px) {
    .property-card {
        flex: 0 0 85vw;
    }
}

.property-card__image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
}

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

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

.property-card__price {
    position: absolute;
    bottom: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    color: var(--color-text-white);
    padding: 0.75rem;
    font-weight: 700;
    font-size: var(--text-lg);
    text-align: right;
    font-family: var(--font-heading);
}

.property-card__content {
    padding: var(--spacing-md);
    text-align: left;
}

.property-card__title {
    font-size: var(--text-lg);
    margin-bottom: 0.25rem;
    margin-left: 0;
}

.property-card__location {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.property-card__location::before {
    content: '📍';
    /* Simple icon */
    font-size: 0.8rem;
}

.property-card__details {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: var(--text-xs);
    color: var(--color-primary);
    font-weight: 500;
}

.property-card__details span {
    background-color: #F1F5F9;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

.btn-sm {
    padding: 0.75rem 1.5rem;
    font-size: var(--text-xs);
    width: 100%;
}

/* Company Section */
#company {
    padding-top: var(--spacing-lg);
    /* Reduced from default section padding */
}

.container--narrow {
    max-width: 800px;
    margin: 0 auto;
}

.company-list {
    border-top: 1px solid var(--color-border);
}

.company-list__item {
    display: flex;
    flex-wrap: wrap;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
}

.company-list__item dt {
    width: 120px;
    font-weight: 700;
}

.company-list__item dd {
    flex: 1;
}

/* CEO Card */
.ceo-card {
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-align: left;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.ceo-card__image {
    flex: 0 0 200px;
    width: 200px;
    /* Explicit width */
    height: 200px;
    /* Same as width for circle */
    border-radius: 50%;
    /* Make it circular */
    overflow: hidden;
    background-color: #F1F5F9;
    align-self: flex-start;
    /* Align to top if text is long */
}

.ceo-card__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-text-white);
    text-align: center;
    font-weight: 700;
    opacity: 0.8;
}

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

.ceo-card__content {
    flex: 1;
}

.ceo-card__title {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}

.ceo-card__job {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
}

.ceo-card__name {
    display: block;
    font-size: var(--text-2xl);
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

.ceo-card__en {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-accent);
    margin-top: 0.25rem;
    font-family: var(--font-body);
    font-weight: 500;
    letter-spacing: 0.05em;
}

.ceo-card__text {
    font-size: var(--text-base);
    color: var(--color-text-main);
    line-height: 1.8;
    font-family: var(--font-heading);
}

@media (max-width: 768px) {
    .ceo-card {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-md);
    }

    .ceo-card__title {
        display: block;
        margin-left: auto;
        margin-right: auto;
        width: fit-content;
    }

    .ceo-card__image {
        flex: 0 0 200px;
        width: 200px;
        align-self: center;
        /* Override flex-start to center on mobile */
        margin-bottom: var(--spacing-sm);
    }
}

/* Contact Section */
.bg-primary {
    background-color: var(--color-primary);
    color: var(--color-text-white);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.form-input {
    width: 100%;
    padding: 1rem;
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    color: var(--color-text-main);
    font-size: var(--text-base);
    transition: var(--transition-base);
    font-family: var(--font-body);
    border-radius: var(--radius-sm);
}

.form-input:focus {
    outline: none;
    background: var(--color-bg-white);
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

.form-input::placeholder {
    color: var(--color-text-light);
}

/* Footer */
.footer {
    background-color: #0B1120;
    /* Darker than primary */
    color: var(--color-text-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer__title {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-lg);
}

/* Footer links horizontal by default (desktop) */
.footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer__links li {
    margin-bottom: 0;
}

.footer__links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
}

.footer__links a:hover {
    color: white;
}

/* Vertical layout on mobile */
@media (max-width: 768px) {
    .footer__links {
        flex-direction: column;
        gap: 0.5rem;
    }
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.5);
}

/* Fade In Animation Initial State */
.fade-in-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    will-change: opacity, visibility;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: none;
}

/* Full Width Map */
.full-width-map {
    width: 100%;
    margin-top: var(--spacing-xl);
    line-height: 0;
    /* Remove potential bottom whitespace from inline-block iframe */
}

.full-width-map iframe {
    display: block;
    width: 100%;
    height: 450px;
    filter: grayscale(100%);
    /* Optional: Stylish look */
    transition: filter 0.3s ease;
}

.full-width-map iframe:hover {
    filter: grayscale(0%);
}

@media (max-width: 768px) {
    .full-width-map iframe {
        height: 300px;
    }
}

/* Full Width Departments */
.departments-full {
    margin-top: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

.department-block {
    width: 100%;
    padding: var(--spacing-xl) 0;
    position: relative;
    border-top: 1px solid var(--color-border);
}

.department-block:last-child {
    border-bottom: 1px solid var(--color-border);
}

.department-block__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 0 var(--spacing-md);
}

.department-block__header {
    margin-bottom: var(--spacing-md);
}

.department-block__title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
    color: var(--color-primary);
}

.department-block__en {
    font-size: var(--text-base);
    color: var(--color-accent);
    font-family: var(--font-body);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.department-block__desc {
    font-size: var(--text-lg);
    color: var(--color-text-main);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.department-block__list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    list-style: none;
}

.department-block__list li {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-primary);
    padding: 0.5rem 1.5rem;
    background-color: var(--color-bg-body);
    border-radius: 9999px;
    /* Pill shape */
    border: 1px solid var(--color-border);
}

/* Specific styling if needed */
.construction-block {
    background-color: #FFFFFF;
}

.real-estate-block {
    background-color: #F8FAFC;
    /* Slightly different bg */
}

/* Elaborate Split Layout (ZigZag) */
.departments-zigzag {
    margin-top: 0;
    width: 100%;
    overflow: hidden;
}

.department-split {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    min-height: 500px;
    /* Ensure substantial height */
    position: relative;
    background-color: var(--color-bg-white);
}

.department-split:nth-child(even) {
    flex-direction: row-reverse;
    background-color: #F8FAFC;
}

/* Image Side */
.department-split__image {
    width: 50%;
    position: relative;
    overflow: hidden;
    min-height: 400px;
}

.department-split__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.department-split:hover .department-split__image img {
    transform: scale(1.05);
    /* Subtle zoom */
}

.department-split__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.1);
    /* Slight darkness */
    transition: background 0.3s ease;
}

/* Content Side */
.department-split__content {
    width: 50%;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

/* Number Watermark */
.department-split__number {
    font-family: var(--font-heading);
    font-size: 8rem;
    color: rgba(0, 0, 0, 0.03);
    /* Very subtle watermark */
    position: absolute;
    top: 0;
    left: var(--spacing-lg);
    right: auto;
    line-height: 1;
    pointer-events: none;
    user-select: none;
}



/* Text Styling */
.department-split__title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.department-split__en {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-accent);
    margin-top: 0.5rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    font-family: var(--font-body);
}

.department-split__desc {
    font-size: var(--text-base);
    line-height: 1.8;
    color: var(--color-text-main);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    position: relative;
    z-index: 1;
}

.department-split__list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    list-style: none;
    position: relative;
    z-index: 1;
}

.department-split__list li {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-primary);
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    background-color: transparent;
    transition: all 0.3s ease;
}

.department-split__list li:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* Construction Buttons */
.department-split__list--buttons li {
    padding: 0;
    border: none;
}

.btn-department {
    display: block;
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--color-border);
    color: var(--color-primary);
    background-color: var(--color-bg-white);
    font-weight: 600;
    transition: var(--transition-base);
    text-decoration: none;
    border-radius: var(--radius-sm);
}

.btn-department:hover {
    border-color: var(--color-accent);
    color: var(--color-text-white);
    background-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Scroll Offset for Fixed Header */
.construction-item {
    scroll-margin-top: 100px;
}

/* Mobile Responsive */
@media (max-width: 900px) {

    .department-split,
    .department-split:nth-child(even) {
        flex-direction: column;
        background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    }

    .department-split:nth-child(even) {
        background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
    }

    .department-split__image,
    .department-split__content {
        width: 100%;
    }

    .department-split__image {
        height: 300px;
        min-height: auto;
    }

    .department-split__content {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .department-split__number {
        font-size: 5rem;
        top: var(--spacing-md);
        right: var(--spacing-md);
    }
}

/* Slide In Animations */
.slide-in-left {
    opacity: 0;
    transform: translateX(-50px) translateY(0);
    transition: transform 1.2s cubic-bezier(0.165, 0.84, 0.44, 1), opacity 1.2s cubic-bezier(0.165, 0.84, 0.44, 1);
    will-change: transform, opacity;
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px) translateY(0);
    transition: transform 1.2s cubic-bezier(0.165, 0.84, 0.44, 1), opacity 1.2s cubic-bezier(0.165, 0.84, 0.44, 1);
    will-change: transform, opacity;
}

.slide-in-left.is-visible,
.slide-in-right.is-visible {
    opacity: 1;
    transform: translateX(0) translateY(0);
}

/* Sub Hero for Subpages */
.sub-hero {
    position: relative;
    height: 40vh;
    min-height: 300px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: var(--color-text-white);
    margin-bottom: 0;
}

.sub-hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('images/hamamatsu.jpg');
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.sub-hero__bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(15, 23, 42, 0.4), rgba(15, 23, 42, 0.7));
    z-index: -1;
}

.sub-hero__title {
    font-size: var(--text-4xl);
    font-weight: 700;
    font-family: var(--font-heading);
    letter-spacing: 0.1em;
    z-index: 1;
    color: #ffffff;
}

/* Integrated Form Styling */
.form-label {
    display: block;
    text-align: left;
    margin-bottom: 0.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-size: var(--text-sm);
}

.required-badge {
    color: #e11d48;
    /* Red for required */
    font-size: 0.8em;
    margin-left: 0.5rem;
    font-weight: normal;
}

.radio-group,
.checkbox-group {
    display: flex;
    gap: var(--spacing-md);
    padding: 0.5rem 0;
    justify-content: flex-start;
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: var(--text-base);
}

.form-actions {
    margin-top: var(--spacing-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-main);
}

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

/* Ensure inputs define height correctly */
select.form-input {
    height: 48px;
    /* Match standard input height likely */
    background-color: var(--color-bg-white);
}

/* Parallax Features Section */
#features {
    background-image: url('images/hamanako.png');
    background-attachment: fixed;
    background-size: cover !important;
    background-position: center center;
    background-repeat: no-repeat;
    position: relative;
    z-index: 1;
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    color: var(--color-text-white);
    /* Default text to white for section header */
}

/* Dark Overlay for readability */
#features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.7);
    /* Deep Navy opacity */
    z-index: -1;
}

/* Section Title override for dark background */
#features .section-title {
    color: var(--color-text-white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    margin-bottom: var(--spacing-sm);
}

#features .section-subtitle {
    color: var(--color-text-white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    margin-bottom: 0;
}

/* モバイル・タブレットでも背景を適切に表示 */
@media (max-width: 1024px) {
    #features {
        background-image: url('images/hamanako_m.jpg');
        background-attachment: scroll;
        background-size: cover !important;
        background-position: center center;
    }

    #features::before {
        background: rgba(15, 23, 42, 0.85);
    }
}

/* Glassy Department Blocks */
.departments-zigzag {
    margin-top: 0;
}

.department-split {
    background-color: rgba(255, 255, 255, 0.95);
    /* High opacity white */
    backdrop-filter: blur(5px);
    box-shadow: var(--shadow-xl);
}

.department-split:nth-child(even) {
    background-color: rgba(248, 250, 252, 0.95);
    /* Slightly off-white for even */
}

/* Ensure text inside blocks is standard color */
.department-split__title,
.department-split__desc,
.department-split__list li {
    /* Colors inherit or set explicitly in previous rules, verifying... */
    /* Previous .department-split__title was using text-3xl, need to ensure color is dark */
    color: var(--color-primary);
}

.department-split__desc {
    color: var(--color-text-main);
}

/* Parallax adjustments for Construction Details */
.construction-details__title {
    color: var(--color-text-white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    text-align: center;
    font-size: var(--text-2xl);
}

.construction-item {
    background-color: #ffffff;
    /* Solid white */
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    /* Ensure internal text is dark */
    color: var(--color-text-main);
}

/* Ensure headings inside the cards are dark */
.construction-item__title {
    color: var(--color-primary);
}

.construction-item__desc {
    color: var(--color-text-main);
}

.construction-item__list li {
    background-color: #F1F5F9;
    /* keep/ensure visibility */
    color: var(--color-primary);
}