/* Corporate Top Page - Handwriting Animation */
/* Updated: 2026-08-07 - Card Illustrations Added */

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

body {
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    line-height: 1.8;
    color: #1a1a1a;
    background-color: #ffffff;
    overflow-x: hidden;
}

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

/* ========================================
   First View - Handwriting Animation
   ======================================== */
.first-view {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    position: relative;
}

.signature-container {
    text-align: center;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Typing Logo */
.typing-logo {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 7.5vw, 6rem);
    font-weight: 900;
    color: #0f172a;
    margin: 0;
    padding: 0;
    letter-spacing: 0;
    line-height: 1;
    white-space: nowrap;
    display: inline-block;
}

.typing-logo .cursor {
    display: inline-block;
    animation: blink 0.8s infinite;
    margin-left: 2px;
    font-weight: 100;
    opacity: 0.4;
    transform: scaleX(0.3);
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

/* Tagline fade in after signature */
.tagline {
    margin-top: 60px;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 3.8s forwards;
}

.tagline p {
    font-size: 1.1rem;
    color: #64748b;
    font-weight: 400;
    line-height: 1.8;
    letter-spacing: 0.05em;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    opacity: 1;
    z-index: 10;
}

.scroll-indicator span {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: #94a3b8;
    margin-bottom: 15px;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, #94a3b8, transparent);
    margin: 0 auto;
    animation: scrollLineMove 1.5s ease-in-out infinite;
}

@keyframes scrollLineMove {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(15px);
        opacity: 0.3;
    }
}

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

/* ========================================
   Navigation
   ======================================== */
.main-nav {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 0.5px solid #e5e7eb;
    padding: 25px 0;
    opacity: 0;
    animation: fadeIn 0.8s ease-out 2.3s forwards;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-nav .container {
    display: flex;
    justify-content: center;
    gap: 50px;
}

.nav-link {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: #64748b;
    text-decoration: none;
    font-weight: 300;
    transition: all 0.3s;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 0.5px;
    background: #0f172a;
    transition: width 0.3s;
}

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

.nav-link:hover {
    color: #0f172a;
}

/* ========================================
   Business Cards Section
   ======================================== */
.business-cards {
    padding: 120px 0;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.business-cards .section-title {
    text-align: center;
    font-size: 0.75rem;
    color: #94a3b8;
    margin-bottom: 15px;
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.business-cards .section-subtitle {
    text-align: center;
    color: #0f172a;
    font-size: 1.8rem;
    margin-bottom: 80px;
    font-weight: 300;
    letter-spacing: 0.02em;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.business-card {
    background: white;
    border-radius: 0;
    overflow: hidden;
    border: 0.5px solid #e5e7eb;
    transition: all 0.4s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.business-card:hover {
    border-color: #94a3b8;
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
}

.card-header {
    padding: 50px 40px;
    position: relative;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.card-header.sales-support {
    background: #fafafa;
    color: #0f172a;
    border-bottom: 0.5px solid #e5e7eb;
}

.card-icon {
    font-size: 1.5rem;
    margin-bottom: 20px;
    opacity: 0.4;
    font-weight: 300;
}

.card-illustration {
    width: 100%;
    max-width: 200px;
    height: 200px;
    margin: 0 auto 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card-illustration img {
    width: auto;
    height: 100%;
    max-width: 100%;
    object-fit: contain;
    opacity: 0.85;
    filter: grayscale(10%);
}

.card-header h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    font-weight: 300;
    letter-spacing: 0.05em;
}

.card-header p {
    font-size: 0.85rem;
    opacity: 0.6;
    line-height: 1.8;
    font-weight: 300;
    letter-spacing: 0.02em;
}

.card-body {
    padding: 40px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-features {
    list-style: none;
    margin-bottom: 30px;
}

.card-features li {
    padding: 15px 0;
    border-bottom: 0.5px solid #f1f5f9;
    color: #64748b;
    font-size: 0.9rem;
    font-weight: 300;
    letter-spacing: 0.01em;
}

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

.card-features li::before {
    content: '·';
    color: #cbd5e1;
    font-weight: 300;
    margin-right: 15px;
    font-size: 1.2rem;
}

.card-body .btn-card {
    width: 100%;
    text-align: center;
    padding: 14px;
    border-radius: 0;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    display: block;
    letter-spacing: 0.05em;
    font-size: 0.95rem;
}

.btn-card.blue {
    background: transparent;
    color: #0f172a;
    border: 0.5px solid #cbd5e1;
    font-weight: 300;
}

.btn-card.blue:hover {
    background: #0f172a;
    color: white;
    border-color: #0f172a;
}

/* ========================================
   About Section
   ======================================== */
.about-section {
    padding: 120px 0;
    background: #fafafa;
    border-top: 0.5px solid #e5e7eb;
    border-bottom: 0.5px solid #e5e7eb;
}

.about-section .section-title {
    font-size: 0.75rem;
    color: #94a3b8;
    margin-bottom: 15px;
    font-weight: 400;
    text-align: center;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.about-section .section-heading {
    font-size: 1.8rem;
    color: #0f172a;
    margin-bottom: 60px;
    font-weight: 300;
    text-align: center;
    letter-spacing: 0.02em;
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    font-size: 0.95rem;
    line-height: 2.2;
    color: #64748b;
    margin-bottom: 30px;
    font-weight: 300;
    letter-spacing: 0.02em;
}

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

.about-illustration img {
    filter: grayscale(30%);
    opacity: 0.6;
}

/* ========================================
   Company Info Section
   ======================================== */
.company-section {
    padding: 120px 0;
    background: #ffffff;
}

.company-section .section-title {
    text-align: center;
    font-size: 0.75rem;
    color: #94a3b8;
    margin-bottom: 15px;
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.company-section .section-heading {
    text-align: center;
    font-size: 1.8rem;
    color: #0f172a;
    margin-bottom: 60px;
    font-weight: 300;
    letter-spacing: 0.02em;
}

.company-table {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 0;
    overflow: hidden;
    border: 0.5px solid #e5e7eb;
}

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

.company-table th,
.company-table td {
    padding: 25px 35px;
    text-align: left;
    border-bottom: 0.5px solid #f1f5f9;
}

.company-table th {
    background: #fafafa;
    color: #64748b;
    font-weight: 300;
    width: 200px;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

.company-table td {
    color: #334155;
    font-weight: 300;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

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

/* ========================================
   Contact Section
   ======================================== */
.contact-section {
    padding: 120px 0;
    background: #fafafa;
}

.contact-section .section-title {
    text-align: center;
    font-size: 0.75rem;
    color: #94a3b8;
    margin-bottom: 15px;
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.contact-section .section-subtitle {
    text-align: center;
    color: #0f172a;
    font-size: 1.8rem;
    margin-bottom: 80px;
    font-weight: 300;
    letter-spacing: 0.02em;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 80px auto 0;
}

.contact-item {
    text-align: center;
    padding: 50px 30px;
    background: white;
    border: 0.5px solid #e5e7eb;
    transition: all 0.3s ease;
}

.contact-item:hover {
    border-color: #cbd5e1;
    transform: translateY(-5px);
}

.contact-label {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: #94a3b8;
    margin-bottom: 20px;
    font-weight: 300;
}

.contact-value {
    display: block;
    font-size: 1.5rem;
    color: #0f172a;
    text-decoration: none;
    font-weight: 300;
    margin-bottom: 15px;
    transition: color 0.3s ease;
    letter-spacing: 0.02em;
}

.contact-value:hover {
    color: #64748b;
}

.contact-line {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.2rem;
}

.contact-line i {
    font-size: 1.5rem;
    color: #00B900;
}

.contact-note {
    font-size: 0.85rem;
    color: #94a3b8;
    font-weight: 300;
    letter-spacing: 0.02em;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 60px 0 30px;
    border-top: 1px solid #1e293b;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s;
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    color: #94a3b8;
    font-size: 1.5rem;
    transition: color 0.3s;
}

.social-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 30px;
    text-align: center;
    color: #64748b;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .first-view {
        min-height: 100vh;
    }

    .typing-logo {
        font-size: clamp(1.75rem, 8.5vw, 3.5rem);
    }

    .scroll-indicator {
        bottom: 30px;
    }

    .main-nav .container {
        flex-wrap: wrap;
        gap: 25px;
    }

    .nav-link {
        font-size: 0.8rem;
    }

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

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

    .about-illustration {
        order: -1;
    }

    .company-table th,
    .company-table td {
        display: block;
        width: 100%;
        padding: 15px 20px;
    }

    .company-table th {
        border-bottom: none;
        background: #0f172a;
        color: white;
    }

    .company-table td {
        padding-bottom: 30px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-item {
        padding: 40px 20px;
    }
}

@media (max-width: 480px) {
    .first-view {
        padding: 0 20px;
    }

    .typing-logo {
        font-size: clamp(1.5rem, 9vw, 2.5rem);
    }

    .business-cards,
    .about-section,
    .company-section {
        padding: 60px 0;
    }

    .card-header {
        padding: 30px 25px;
    }

    .card-body {
        padding: 25px;
    }

    .main-nav {
        padding: 20px 0;
    }

    .main-nav .container {
        gap: 20px;
    }

    .nav-link {
        font-size: 0.75rem;
    }
}