/* =============================================
   Reset & Base Styles
   ============================================= */

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

:root {
    /* Brand Colors */
    --primary-blue: #1E3A8A;
    --light-blue: #3B82F6;
    --lighter-blue: #DBEAFE;
    --accent-blue: #60A5FA;
    --dark-blue: #1E40AF;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #F9FAFB;
    --light-gray: #F3F4F6;
    --gray: #9CA3AF;
    --dark-gray: #4B5563;
    --black: #111827;
    
    /* Typography */
    --font-serif: 'Noto Serif JP', serif;
    --font-sans: 'Noto Sans JP', sans-serif;
    
    /* Spacing */
    --section-padding: 120px;
    --container-padding: 80px;
    
    /* Transitions */
    --transition-base: 0.3s ease;
    --transition-slow: 0.6s ease;
}

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

body {
    font-family: var(--font-sans);
    color: var(--black);
    background-color: var(--white);
    line-height: 1.8;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* =============================================
   Header
   ============================================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all var(--transition-base);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
    transition: transform var(--transition-base);
}

.logo a:hover img {
    transform: scale(1.05);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.nav-list a {
    text-decoration: none;
    color: var(--black);
    font-weight: 500;
    font-size: 14px;
    position: relative;
    transition: color var(--transition-base);
    white-space: nowrap;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-blue);
    transition: width var(--transition-base);
}

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

.nav-list a:hover::after {
    width: 100%;
}

.nav-cta {
    background-color: var(--primary-blue);
    color: var(--white) !important;
    padding: 10px 25px;
    border-radius: 30px;
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background-color: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(30, 58, 138, 0.3);
}

.nav-cta::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--primary-blue);
    transition: all var(--transition-base);
}

/* =============================================
   Hero Section
   ============================================= */

.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.geometric-shape {
    position: absolute;
    opacity: 0.08;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    top: 10%;
    left: 10%;
    width: 300px;
    height: 300px;
    background: var(--primary-blue);
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    animation-delay: 0s;
}

.shape-2 {
    top: 60%;
    right: 10%;
    width: 200px;
    height: 200px;
    background: var(--light-blue);
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    animation-delay: 3s;
}

.shape-3 {
    bottom: 10%;
    left: 50%;
    width: 250px;
    height: 250px;
    background: var(--accent-blue);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    animation-delay: 6s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(30px, -30px) rotate(90deg);
    }
    50% {
        transform: translate(-20px, 20px) rotate(180deg);
    }
    75% {
        transform: translate(20px, 30px) rotate(270deg);
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 0 40px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 600;
    color: var(--primary-blue);
    line-height: 1.3;
    margin-bottom: 30px;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.br-mobile {
    display: none;
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--dark-gray);
    font-weight: 300;
    letter-spacing: 0.05em;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--primary-blue);
    font-size: 2rem;
    animation: bounce 2s infinite;
    z-index: 20;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* =============================================
   Purpose Section
   ============================================= */

.purpose {
    padding: var(--section-padding) 0;
    background-color: var(--white);
}

.purpose-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
    flex-wrap: wrap;
}

.purpose-item {
    text-align: center;
    padding: 30px 40px;
    background-color: transparent;
    border-radius: 10px;
    transition: all var(--transition-base);
    border: 1px solid transparent;
    flex: 0 1 auto;
}

.purpose-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(30, 58, 138, 0.1);
    border-color: var(--lighter-blue);
}

.purpose-label {
    font-family: var(--font-serif);
    font-size: 1rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 15px;
    letter-spacing: 0.1em;
}

.purpose-text {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--dark-gray);
}

/* =============================================
   Section Headers
   ============================================= */

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--dark-gray);
    font-weight: 300;
    letter-spacing: 0.03em;
}

/* =============================================
   Career Support Section
   ============================================= */

.career-support {
    padding: var(--section-padding) 0;
    background-color: var(--off-white);
}

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

.career-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 15px;
    transition: all var(--transition-base);
    border: 1px solid var(--light-gray);
    position: relative;
    overflow: hidden;
}

.career-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--light-blue));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

.career-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(30, 58, 138, 0.15);
}

.career-card:hover::before {
    transform: scaleX(1);
}

.career-number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--lighter-blue);
    font-weight: 700;
    margin-bottom: 20px;
}

.career-card-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 20px;
    line-height: 1.6;
}

.career-card-text {
    font-size: 0.95rem;
    color: var(--dark-gray);
    line-height: 1.9;
}

/* =============================================
   Other Services Section
   ============================================= */

.other-services {
    padding: var(--section-padding) 0;
    background-color: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
}

.service-card {
    background-color: var(--off-white);
    padding: 50px 40px;
    border-radius: 15px;
    text-align: center;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(30, 58, 138, 0.12);
    border-color: var(--accent-blue);
    background-color: var(--white);
}

.service-icon {
    font-size: 3.5rem;
    color: var(--primary-blue);
    margin-bottom: 30px;
    position: relative;
}

.service-icon-small {
    font-size: 2rem;
    position: absolute;
    top: -10px;
    right: -20px;
    color: var(--light-blue);
}

.service-icon-wifi {
    font-size: 1.8rem;
    position: absolute;
    top: -5px;
    right: -10px;
    color: var(--accent-blue);
}

.service-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 20px;
}

.service-text {
    font-size: 0.95rem;
    color: var(--dark-gray);
    line-height: 1.9;
}

/* =============================================
   VALUES Section
   ============================================= */

.values {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.value-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: 0 5px 20px rgba(30, 58, 138, 0.08);
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(30, 58, 138, 0.15);
}

.value-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 25px;
}

.value-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 15px;
}

.value-text {
    font-size: 0.9rem;
    color: var(--dark-gray);
    line-height: 1.8;
}

/* =============================================
   Company Overview Section
   ============================================= */

.company-overview {
    padding: var(--section-padding) 0;
    background-color: var(--white);
}

.company-table {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--off-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

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

.company-table th,
.company-table td {
    padding: 30px 40px;
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

.company-table th {
    background-color: var(--primary-blue);
    color: var(--white);
    font-weight: 600;
    width: 200px;
    font-family: var(--font-serif);
}

.company-table td {
    background-color: var(--white);
    color: var(--dark-gray);
    line-height: 1.9;
}

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

/* =============================================
   Representative Message Section
   ============================================= */

.representative-message {
    padding: var(--section-padding) 0;
    background-color: var(--off-white);
}

.message-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 80px;
    align-items: start;
}

.message-image {
    position: sticky;
    top: 120px;
}

.message-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.message-text {
    background-color: var(--white);
    padding: 60px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.message-title {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 40px;
}

.message-body p {
    margin-bottom: 25px;
    line-height: 2;
    color: var(--dark-gray);
}

.message-lead {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-blue);
    line-height: 1.8;
    margin-bottom: 35px !important;
}

.message-highlight {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-blue);
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
    border-radius: 10px;
    margin: 35px 0 !important;
    font-family: var(--font-serif);
}

.message-closing {
    font-weight: 600;
    color: var(--black);
}

.message-signature {
    text-align: right;
    font-weight: 600;
    color: var(--primary-blue);
    margin-top: 40px;
    font-size: 1.1rem;
}

/* =============================================
   FAQ Section
   ============================================= */

.faq {
    padding: var(--section-padding) 0;
    background-color: var(--white);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    background-color: var(--off-white);
    border-radius: 10px;
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: 0 5px 20px rgba(30, 58, 138, 0.1);
}

.faq-question {
    width: 100%;
    padding: 25px 30px;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-blue);
    transition: all var(--transition-base);
}

.faq-question-mobile {
    display: none;
}

.faq-question-desktop {
    display: inline;
}

.faq-question:hover {
    background-color: var(--lighter-blue);
}

.faq-question i {
    transition: transform var(--transition-base);
    font-size: 0.9rem;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 30px 25px;
    color: var(--dark-gray);
    line-height: 1.9;
}

/* =============================================
   Contact CTA Section
   ============================================= */

.contact-cta {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    position: relative;
    overflow: hidden;
}

.contact-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 10;
}

.cta-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--white);
    font-weight: 600;
    margin-bottom: 20px;
    line-height: 1.6;
}

.cta-text {
    font-size: 1.2rem;
    color: var(--white);
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 20px 50px;
    background-color: var(--white);
    color: var(--primary-blue);
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.cta-button i {
    font-size: 1.2rem;
}

/* =============================================
   Footer
   ============================================= */

.footer {
    background-color: var(--black);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo img {
    height: 50px;
    margin-bottom: 15px;
    filter: brightness(0) invert(1);
}

.footer-company-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 10px;
}

.footer-info p {
    line-height: 1.8;
    color: var(--gray);
    font-size: 0.95rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray);
    text-decoration: none;
    transition: color var(--transition-base);
    font-size: 0.95rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--dark-gray);
}

.footer-bottom p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* =============================================
   Animation Classes
   ============================================= */

.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

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

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
}

.fade-in-up.visible {
    animation: fadeInUp 0.8s ease forwards;
}

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

/* =============================================
   Responsive Design
   ============================================= */

@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
        --container-padding: 60px;
    }

    .hero-title {
        font-size: 2.8rem;
    }

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

    .purpose-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

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

    .message-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .message-image {
        position: relative;
        top: 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
        max-width: 100%;
    }

    .header-container {
        padding: 15px 20px;
    }

    .logo img {
        height: 40px;
    }

    .nav-list {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: 30px;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: transform var(--transition-base);
        gap: 20px;
    }

    .nav-list.active {
        transform: translateY(0);
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero {
        height: auto;
        min-height: 100vh;
        padding: 120px 20px 80px;
    }

    .hero-title {
        font-size: 1.6rem;
        white-space: normal;
        line-height: 1.6;
    }

    .br-mobile {
        display: inline;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .scroll-indicator {
        bottom: 40px;
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.6rem;
        word-break: keep-all;
    }

    .section-subtitle {
        font-size: 0.9rem;
        word-break: keep-all;
    }

    /* Purpose/Mission/Vision */
    .purpose-item {
        padding: 20px;
    }

    .purpose-label {
        font-size: 0.9rem;
    }

    .purpose-text {
        font-size: 0.85rem;
        word-break: keep-all;
        line-height: 1.8;
    }

    /* Career Support Cards */
    .career-card {
        padding: 30px 20px;
    }

    .career-number {
        font-size: 2rem;
    }

    .career-card-title {
        font-size: 1.1rem;
        word-break: keep-all;
    }

    .career-card-text {
        font-size: 0.85rem;
        word-break: keep-all;
        line-height: 1.8;
    }

    /* Service Cards */
    .service-card {
        padding: 40px 20px;
    }

    .service-icon {
        font-size: 2.8rem;
    }

    .service-title {
        font-size: 1.2rem;
        word-break: keep-all;
    }

    .service-text {
        font-size: 0.85rem;
        word-break: keep-all;
        line-height: 1.8;
    }

    /* Values Cards */
    .values-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

    .value-icon {
        font-size: 2.5rem;
    }

    .value-title {
        font-size: 1.2rem;
        word-break: keep-all;
    }

    .value-text {
        font-size: 0.85rem;
        word-break: keep-all;
        line-height: 1.8;
    }

    /* Company Table */
    .company-table th,
    .company-table td {
        padding: 20px;
        display: block;
        width: 100%;
        font-size: 0.9rem;
    }

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

    .company-table tr {
        display: block;
        margin-bottom: 20px;
    }

    /* Representative Message */
    .message-text {
        padding: 30px 20px;
    }

    .message-title {
        font-size: 1.5rem;
        word-break: keep-all;
    }

    .message-body p {
        font-size: 0.9rem;
        word-break: keep-all;
        line-height: 1.9;
    }

    .message-lead {
        font-size: 1.05rem;
    }

    .message-highlight {
        font-size: 1.1rem;
        padding: 20px;
        word-break: keep-all;
    }

    .message-signature {
        font-size: 0.95rem;
    }

    /* FAQ */
    .faq-question {
        padding: 18px 15px;
        font-size: 0.9rem;
        align-items: flex-start;
    }

    .faq-question-desktop {
        display: none;
    }

    .faq-question-mobile {
        display: inline;
        line-height: 1.5;
        padding-right: 10px;
    }

    .faq-question span {
        word-break: keep-all;
        line-height: 1.5;
        padding-right: 10px;
    }

    .faq-question i {
        margin-top: 3px;
        flex-shrink: 0;
    }

    .faq-answer p {
        padding: 0 15px 18px;
        font-size: 0.85rem;
        word-break: keep-all;
        line-height: 1.8;
    }

    /* Contact CTA */
    .cta-title {
        font-size: 1.4rem;
        word-break: keep-all;
        line-height: 1.7;
    }

    .cta-text {
        font-size: 0.95rem;
    }

    .cta-button {
        padding: 15px 35px;
        font-size: 0.95rem;
    }

    /* Footer */
    .footer-logo img {
        height: 40px;
    }

    .footer-company-name {
        font-size: 1rem;
    }

    .footer-info p,
    .footer-links a {
        font-size: 0.85rem;
    }

    .footer-bottom p {
        font-size: 0.8rem;
    }
}