:root {
    /* Color Palette - Refined Blue & Gold Theme */
    --color-primary-dark: #0A1931;
    /* Deep authoritative Navy */
    --color-primary: #152D54;
    /* Lighter Navy */
    --color-accent: #C8A97E;
    /* Soft Elegant Gold */
    --color-accent-light: #E4D4BB;
    /* Very light gold / beige */
    --color-accent-dark: #A6804A;
    /* Darker tarnished gold */

    --color-text-main: #2C3539;
    --color-text-muted: #6B7280;
    --color-text-light: #FFFFFF;

    --color-bg-light: #FFFFFF;
    --color-bg-offwhite: #FAFAFA;
    --color-bg-dark: #0A1931;

    /* Typography */
    --font-heading: 'Noto Serif JP', serif;
    --font-body: 'Noto Sans JP', sans-serif;
    --font-eng: 'Cinzel', serif;

    /* Transitions & Spacing */
    --transition-fast: 0.3s ease;
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);

    --container-max: 1140px;
    --section-padding: 120px 0;
}

/* 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-light);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography Classes */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.3;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    border-radius: 4px;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: var(--transition-fast);
    cursor: pointer;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: #fff;
}

.btn-outline-gold {
    background-color: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

.btn-outline-gold:hover {
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 25px 0;
    transition: var(--transition-fast);
    background: transparent;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

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

.site-logo {
    height: 85px;
    transition: var(--transition-fast);
}

.site-header.scrolled .site-logo {
    height: 60px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition-fast);
}

.logo-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.logo-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    line-height: 1.2;
    transition: var(--transition-fast);
}

.logo-subtitle {
    font-family: var(--font-eng);
    font-size: 0.8rem;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    transition: var(--transition-fast);
}

/* Header Text Colors & Shadows */
.site-header .logo-title {
    color: var(--color-text-light);
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.4);
}

.site-header .logo-subtitle {
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.4);
}

.site-header.scrolled .logo-title {
    color: var(--color-primary-dark);
    text-shadow: none;
}

.site-header.scrolled .logo-subtitle {
    text-shadow: none;
}

.main-nav .nav-list {
    display: flex;
    align-items: center;
    gap: 45px;
}

.main-nav a:not(.btn) {
    color: var(--color-text-light);
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    letter-spacing: 0.05em;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: var(--transition-fast);
}

.site-header.scrolled .main-nav a:not(.btn) {
    color: var(--color-primary-dark);
    text-shadow: none;
}

.main-nav a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: var(--transition-fast);
}

.main-nav a:not(.btn):hover {
    color: var(--color-accent);
}

.main-nav a:not(.btn):hover::after {
    width: 100%;
}

/* Dropdown Menus */
.has-dropdown {
    position: relative;
}

.dropdown-icon {
    font-size: 0.7em;
    margin-left: 4px;
    vertical-align: middle;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 240px;
    background: #fff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-fast);
    padding: 10px 0;
    border-radius: 4px;
    z-index: 1000;
}

.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 12px 24px !important;
    color: var(--color-primary-dark) !important;
    font-size: 0.9rem !important;
    text-shadow: none !important;
    transition: var(--transition-fast) !important;
}

.dropdown-menu a::after {
    display: none !important;
}

.dropdown-menu a:hover {
    background-color: var(--color-bg-offwhite);
    color: var(--color-accent) !important;
    padding-left: 30px !important;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 24px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text-light);
    position: absolute;
    left: 0;
    transition: var(--transition-fast);
}

.site-header.scrolled .mobile-menu-btn span {
    background-color: #fff;
}

.mobile-menu-btn span:nth-child(1) {
    top: 0;
}

.mobile-menu-btn span:nth-child(2) {
    top: 11px;
}

.mobile-menu-btn span:nth-child(3) {
    top: 22px;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
    background-image: url('images/hero_bg.png');
    transform: scale(1.05);
    /* For slight zoom effect on load */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 25, 49, 0.7) 0%, rgba(10, 25, 49, 0.3) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-text-light);
    max-width: 900px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 0.08em;
    line-height: 1.2;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 50px;
    letter-spacing: 0.1em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #fff;
    opacity: 0.8;
}

.scroll-text {
    font-family: var(--font-eng);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    margin-bottom: 10px;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: var(--color-accent);
    animation: scrollDown 2s infinite ease-in-out;
}

@keyframes scrollDown {
    0% {
        transform: translateY(-100%);
    }

    100% {
        transform: translateY(200%);
    }
}

/* Mobile Nav Structure (Hidden by default) */
.mobile-nav-overlay {
    display: none;
}

.mobile-nav-content {
    width: 100%;
    height: 100%;
    overflow-y: auto;
    padding: 100px 20px 40px;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    list-style: none;
    /* Add this explicitly */
    padding: 0;
    /* Clear padding */
}

.mobile-nav-list>li {
    width: 100%;
    text-align: center;
}

.mobile-nav-list a {
    display: block;
    color: #fff;
    font-size: 1.5rem;
    padding: 15px 0;
    text-decoration: none;
    transition: var(--transition-fast);
}

.mobile-nav-list a:hover {
    color: var(--color-accent);
}

.mobile-has-dropdown {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mobile-dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    position: relative;
    cursor: pointer;
}

.toggle-icon {
    color: #fff;
    font-size: 1.5rem;
    position: absolute;
    right: 15%;
    transition: transform 0.3s ease;
}

.toggle-icon.open {
    transform: rotate(45deg);
}

.mobile-dropdown-menu {
    display: none;
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-top: 10px;
    padding: 10px 0;
    list-style: none;
}

.mobile-dropdown-menu li {
    text-align: center;
}

.mobile-dropdown-menu li a {
    font-size: 1.1rem !important;
    padding: 10px 0 !important;
    color: var(--color-accent-light) !important;
}

.mobile-dropdown-menu li a:hover {
    color: #fff !important;
}

/* Sections Base */
.section {
    padding: var(--section-padding);
}

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

.container-narrow {
    max-width: 900px;
}

.section-header {
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--color-primary-dark);
    margin-bottom: 10px;
}

.section-title-eng {
    font-family: var(--font-eng);
    color: var(--color-accent);
    font-size: 1rem;
    letter-spacing: 0.15em;
    margin-bottom: 20px;
}

.section-title-line {
    width: 60px;
    height: 2px;
    background-color: var(--color-accent);
    margin: 0 auto 20px;
}

.section-desc {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Business Section */
.business-section {
    background-color: var(--color-bg-offwhite);
}

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

.business-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition-fast);
}

.business-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.card-img-wrap {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.business-card:hover .card-img-wrap img {
    transform: scale(1.1);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 21, 41, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-fast);
}

.business-card:hover .card-overlay {
    opacity: 1;
}

.btn-outline-light {
    border: 1px solid #fff;
    color: #fff;
    padding: 8px 24px;
}

.btn-outline-light:hover {
    background: #fff;
    color: var(--color-primary-dark);
}

.card-content {
    padding: 30px;
    position: relative;
}

.card-title {
    font-size: 1.5rem;
    color: var(--color-primary-dark);
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.card-title span {
    font-family: var(--font-eng);
    font-size: 2rem;
    color: var(--color-accent);
    opacity: 0.2;
    line-height: 1;
}

.card-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Message Section */
.message-section {
    background-color: var(--color-bg-light);
    position: relative;
    padding-top: 140px;
    padding-bottom: 120px;
}

.message-content {
    background: #fff;
    padding: 60px 80px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
    border-top: 3px solid var(--color-accent);
    position: relative;
    margin-top: -120px;
    /* Overlap with hero slightly or just pull up */
    z-index: 10;
}

.message-subtitle {
    font-family: var(--font-eng);
    color: var(--color-accent);
    letter-spacing: 0.2em;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.message-title {
    font-size: 2.2rem;
    color: var(--color-primary-dark);
    margin-bottom: 40px;
    line-height: 1.5;
}

.message-text p {
    color: var(--color-text-main);
    margin-bottom: 20px;
    font-size: 1.05rem;
    line-height: 1.9;
}

.message-signature {
    margin-top: 50px;
    text-align: right;
}

.message-signature p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.message-signature .name {
    font-size: 1.4rem;
    color: var(--color-primary-dark);
    font-family: var(--font-heading);
}

/* Strengths Section */
.strengths-section {
    background-color: var(--color-primary-dark);
    color: #fff;
}

.strengths-section .section-title {
    color: #fff;
}

.strengths-section .section-desc {
    color: rgba(255, 255, 255, 0.7);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 40px;
}

.strength-card {
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.02);
    transition: var(--transition-fast);
}

.strength-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(200, 169, 126, 0.3);
    /* Accent border on hover */
    transform: translateY(-5px);
}

.strength-number {
    font-family: var(--font-eng);
    font-size: 3rem;
    color: var(--color-accent);
    opacity: 0.5;
    margin-bottom: 20px;
    line-height: 1;
}

.strength-title {
    font-size: 1.4rem;
    margin-bottom: 20px;
    line-height: 1.5;
    color: #fff;
}

.strength-desc {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* News Section */
.news-section {
    background-color: var(--color-bg-light);
}

.news-list {
    display: flex;
    flex-direction: column;
}

.news-item {
    display: flex;
    align-items: center;
    padding: 24px 0;
    border-bottom: 1px solid #eee;
    transition: var(--transition-fast);
}

.news-item:first-child {
    border-top: 1px solid #eee;
}

.news-item:hover {
    background-color: var(--color-bg-offwhite);
    padding-left: 10px;
    padding-right: 10px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 180px;
}

.news-date {
    color: var(--color-text-muted);
    font-family: var(--font-eng);
    font-size: 0.95rem;
}

.news-category {
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    color: #fff;
    font-weight: 500;
}

.tag-info {
    background-color: var(--color-primary);
}

.tag-service {
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
}

.tag-event {
    background-color: var(--color-text-muted);
}

.news-title {
    font-size: 1.05rem;
    color: var(--color-primary-dark);
    font-weight: 500;
    flex-grow: 1;
    transition: var(--transition-fast);
}

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

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

.company-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(to left, rgba(212, 175, 55, 0.05), transparent);
    z-index: 0;
}

.company-content {
    background: #fff;
    padding: 50px;
    border-top: 4px solid var(--color-accent);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.05);
    position: relative;
    z-index: 1;
}

.company-table {
    width: 100%;
    border-collapse: collapse;
}

.company-table th,
.company-table td {
    padding: 20px 15px;
    border-bottom: 1px solid #eee;
    text-align: left;
}

.company-table tr:last-child th,
.company-table tr:last-child td {
    border-bottom: none;
}

.company-table th {
    width: 30%;
    color: var(--color-primary-dark);
    font-weight: 500;
}

.company-table td {
    color: var(--color-text-muted);
}

/* Footer / CTA Section */
.site-footer {
    background-color: var(--color-primary-dark);
    color: #fff;
    padding-top: 80px;
}

.footer-cta {
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 60px;
    margin-bottom: 60px;
}

.cta-title {
    font-size: 2rem;
    margin-bottom: 40px;
    line-height: 1.5;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.btn-large .icon {
    margin-right: 10px;
}

.cta-note {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 40px;
}

.footer-logo img {
    height: 85px;
}

.footer-logo .logo-title {
    color: #fff;
}

.footer-info {
    text-align: right;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    line-height: 1.8;
}

.copyright {
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8rem;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Responsive */
@media (max-width: 992px) {
    .main-nav {
        display: none;
    }

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

    .hero-title {
        font-size: 2.5rem;
    }

    .business-grid,
    .strengths-grid {
        grid-template-columns: 1fr;
    }

    .message-content {
        padding: 40px 30px;
        margin-top: -60px;
    }

    .message-title {
        font-size: 1.8rem;
    }

    .news-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .news-meta {
        min-width: auto;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-large {
        width: 100%;
        max-width: 350px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

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

    .company-content {
        padding: 30px 20px;
    }

    .company-table th,
    .company-table td {
        display: block;
        width: 100%;
    }

    .company-table th {
        padding-bottom: 5px;
        border-bottom: none;
    }

    .company-table td {
        padding-top: 0;
        padding-bottom: 20px;
    }
}