/* ===== CSS Variables - Corporate White Style ===== */
:root {
    --color-bg: #ffffff;
    --color-bg-light: #fafbfc;
    --color-bg-section: #f5f7fa;
    --color-text: #1a1a2e;
    --color-text-muted: #64748b;
    --color-primary: #1a365d;
    --color-accent: #b8860b;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.08);
    --font-primary: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Montserrat', sans-serif;
    --transition: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.8;
    overflow-x: hidden;
    font-feature-settings: "palt";
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Cursor Glow - Disabled ===== */
.cursor-glow {
    display: none;
}

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border-light);
    transition: all 0.3s var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
    border-bottom-color: transparent;
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

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

.logo-img {
    height: 45px;
    width: auto;
    transition: opacity 0.3s ease;
}

.logo:hover .logo-img {
    opacity: 0.7;
}

.header.scrolled .logo-img {
    height: 40px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all 0.3s var(--transition);
}

.nav-links {
    display: flex;
    gap: 0;
}

.nav-links a {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    padding: 30px 22px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s var(--transition);
}

.nav-links a:hover {
    color: var(--color-primary);
}

.nav-links a:hover::after {
    width: calc(100% - 44px);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-section) 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.gradient-orb {
    display: none;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(26, 54, 93, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(184, 134, 11, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: 0 24px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 300;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: 30px;
    letter-spacing: 0.05em;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--transition) forwards;
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) {
    animation-delay: 0.4s;
    color: var(--color-primary);
    font-weight: 600;
}
.title-line:nth-child(3) { animation-delay: 0.6s; }

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

.hero-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
    letter-spacing: 0.25em;
    margin-bottom: 50px;
    font-weight: 400;
    opacity: 0;
    animation: fadeIn 1s ease 1s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 18px 50px;
    background: var(--color-primary);
    border: none;
    color: white;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    transition: all 0.4s var(--transition);
    opacity: 0;
    animation: fadeIn 1s ease 1.2s forwards;
}

.cta-button:hover {
    background: var(--color-text);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.arrow-icon {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.cta-button:hover .arrow-icon {
    transform: translateX(5px);
}

.scroll-indicator {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    opacity: 0;
    animation: fadeIn 1s ease 1.5s forwards;
}

.scroll-indicator span {
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    color: var(--color-text-muted);
    font-weight: 500;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.3; transform: scaleY(0.6); }
}

/* ===== Section Common Styles ===== */
.section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 60px;
}

.section-number {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.1em;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.08em;
}

/* ===== About Section ===== */
.about {
    background: var(--color-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
}

.about-heading {
    font-size: clamp(1.3rem, 2vw, 1.6rem);
    font-weight: 500;
    line-height: 1.8;
    margin-bottom: 25px;
    color: var(--color-text);
}

.about-description {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 2.2;
    margin-bottom: 50px;
}

.about-stats {
    display: flex;
    gap: 50px;
}

.stat-item {
    position: relative;
    padding-left: 20px;
}

.stat-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--color-accent);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-number::after {
    content: '+';
    font-size: 1.5rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 3/4;
    background: var(--color-bg-section);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.card-glow {
    display: none;
}

.card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.card-icon {
    font-size: 3rem;
    color: var(--color-accent);
}

.card-text {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.25em;
    color: var(--color-primary);
}

/* ===== Services Section ===== */
.services {
    background: var(--color-bg-section);
}

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

.service-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
    transition: all 0.4s var(--transition);
}

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

.service-card .card-bg {
    display: none;
}

.service-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--transition);
}

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

.service-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to bottom, transparent, var(--color-bg));
    pointer-events: none;
}

.service-content {
    padding: 30px 35px 40px;
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.08em;
    margin-bottom: 15px;
}

.service-desc {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.9;
    margin-bottom: 25px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    transition: all 0.3s ease;
}

.service-link svg {
    width: 14px;
    height: 14px;
    transition: transform 0.3s ease;
}

.service-link:hover {
    color: var(--color-primary);
}

.service-link:hover svg {
    transform: translateX(5px);
}

/* ===== Partners Section ===== */
.partners {
    background: var(--color-bg);
    padding: 100px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.partner-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 40px 25px;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    transition: all 0.4s var(--transition);
}

.partner-card:hover {
    background: var(--color-bg);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.partner-card img {
    width: 90px;
    height: 90px;
    object-fit: contain;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.partner-card:hover img {
    opacity: 1;
}

.partner-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-align: center;
    letter-spacing: 0.03em;
    transition: color 0.3s ease;
}

.partner-card:hover .partner-name {
    color: var(--color-text);
}

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

.news-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 50px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}

.news-card {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 30px 35px;
    border-bottom: 1px solid var(--color-border);
    transition: all 0.3s var(--transition);
}

.news-card:last-child {
    border-bottom: none;
}

.news-card:hover {
    background: var(--color-bg-light);
}

.news-date {
    display: flex;
    align-items: baseline;
    gap: 8px;
    min-width: 110px;
}

.date-day {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--color-primary);
}

.date-month {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
}

.news-content {
    flex: 1;
}

.news-category {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 600;
    padding: 4px 12px;
    background: var(--color-primary);
    color: white;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.news-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    transition: color 0.3s ease;
}

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

.news-excerpt {
    display: none;
}

.news-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.news-link svg {
    width: 14px;
    height: 14px;
    color: var(--color-text-muted);
    transition: all 0.3s ease;
}

.news-card:hover .news-link {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.news-card:hover .news-link svg {
    color: white;
}

.view-all-link {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-primary);
    transition: all 0.3s ease;
}

.view-all-link svg {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.view-all-link:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.view-all-link:hover svg {
    transform: translateX(5px);
}

/* ===== Contact Section ===== */
.contact {
    background: var(--color-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 100px;
}

.contact-description {
    font-size: 1rem;
    line-height: 2.2;
    color: var(--color-text-muted);
    margin-bottom: 50px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.contact-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.15em;
}

.contact-value {
    font-size: 1rem;
    color: var(--color-text);
    transition: color 0.3s ease;
}

a.contact-value:hover {
    color: var(--color-primary);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
    background: var(--color-bg-section);
    padding: 50px;
    border: 1px solid var(--color-border);
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: 18px 20px;
    font-size: 0.95rem;
    color: var(--color-text);
    font-family: var(--font-primary);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group label {
    position: absolute;
    left: 20px;
    top: 18px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    pointer-events: none;
    transition: all 0.3s var(--transition);
    background: var(--color-bg);
    padding: 0;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -8px;
    left: 15px;
    font-size: 0.7rem;
    color: var(--color-primary);
    padding: 0 8px;
    letter-spacing: 0.05em;
}

.form-line {
    display: none;
}

.form-group textarea {
    resize: none;
    min-height: 140px;
}

.submit-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 18px 55px;
    background: var(--color-primary);
    border: none;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: white;
    cursor: pointer;
    transition: all 0.4s var(--transition);
    align-self: flex-start;
}

.submit-button:hover {
    background: var(--color-text);
    box-shadow: var(--shadow-md);
}

.submit-button svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.submit-button:hover svg {
    transform: translateX(3px);
}

/* ===== Footer ===== */
.footer {
    padding: 0;
    background: var(--color-bg-section);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 50px 0;
    border-bottom: 1px solid var(--color-border);
}

.footer-logo-img {
    height: 40px;
    width: auto;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-logo-img:hover {
    opacity: 1;
}

.footer-links {
    display: flex;
    gap: 35px;
}

.footer-links a {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.footer-social svg {
    width: 18px;
    height: 18px;
    stroke: var(--color-text-muted);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.footer-social a:hover svg {
    stroke: white;
}

.footer-bottom {
    padding: 25px 0;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-align: center;
    letter-spacing: 0.03em;
}

/* ===== Responsive Styles ===== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-visual {
        order: -1;
    }

    .visual-card {
        max-width: 100%;
        aspect-ratio: 16/9;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .contact-form {
        padding: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        height: 70px;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 0;
        transition: right 0.4s var(--transition);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1rem;
        padding: 20px 40px;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }

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

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .about-stats {
        flex-direction: column;
        gap: 25px;
    }

    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .partner-card {
        padding: 30px 20px;
    }

    .partner-card img {
        width: 70px;
        height: 70px;
    }

    .news-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        padding: 25px;
    }

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

    .news-link {
        align-self: flex-end;
    }

    .footer-content {
        flex-direction: column;
        gap: 35px;
        text-align: center;
        padding: 40px 0;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px 25px;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 80px 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .cta-button {
        padding: 15px 35px;
    }

    .service-content {
        padding: 25px 25px 35px;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .submit-button {
        width: 100%;
    }

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