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

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: #1a202c;
    background-color: #ffffff;
}

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

/* Typography */
h1 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: #1e3a8a;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
    line-height: 1.3;
    color: #1e3a8a;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    color: #1e40af;
    margin-bottom: 0.75rem;
}

h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 0.5rem;
}

p {
    line-height: 1.6;
    color: #4a5568;
    margin-bottom: 1rem;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e2e8f0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 40px;
    height: 40px;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e3a8a;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, #0891b2, #06b6d4);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    font-family: inherit;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0e7490, #0891b2);
}

.btn-secondary {
    background: transparent;
    color: #0891b2;
    border: 2px solid #0891b2;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    font-family: inherit;
}

.btn-secondary:hover {
    background: #0891b2;
    color: white;
}

.btn-plan {
    width: 100%;
    background: #1e3a8a;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    font-family: inherit;
}

.btn-plan:hover {
    background: #1e40af;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 120px 0 80px;
    margin-top: 70px;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
    text-align: center;
}

.hero-text {
    max-width: 800px;
    margin: 0 auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-top: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.dashboard-image,
.dashboard-preview-image,
.airport-map-image,
.console-image,
.office-image,
.team-image {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background: #f8fafc;
    object-fit: cover;
    max-width: 100%;
    display: block;
}

.dashboard-image {
    max-height: 400px;
}

.dashboard-preview-image {
    max-height: 500px;
}

.airport-map-image {
    max-height: 400px;
}

.console-image {
    max-height: 450px;
}

.office-image,
.team-image {
    max-height: 300px;
    aspect-ratio: 4/3;
}

/* Features Overview */
.features-overview {
    padding: 80px 0;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.feature-card {
    background: white;
    border-radius: 16px;
    padding: 40px 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid #f1f5f9;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #0891b2, #06b6d4);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
}

/* Statistics */
.statistics {
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    color: white;
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #06b6d4;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 1rem;
    color: #cbd5e1;
}

/* Dashboard Preview */
.dashboard-preview {
    padding: 80px 0;
    text-align: center;
    background: #f8fafc;
}

.dashboard-mockup {
    margin-top: 40px;
}

/* Disruption Map */
.disruption-map {
    padding: 80px 0;
    text-align: center;
}

.map-container {
    margin-top: 40px;
}

/* Photo Placeholder */
.photo-placeholder {
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    border-radius: 12px;
    padding: 80px 40px;
    color: #64748b;
    font-weight: 500;
    text-align: center;
    border: 2px dashed #94a3b8;
}

/* Service Plans */
.service-plans {
    padding: 80px 0;
    text-align: center;
    background: #f8fafc;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.plan-card {
    background: white;
    border-radius: 16px;
    padding: 40px 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border: 2px solid #f1f5f9;
    position: relative;
}

.plan-card.featured {
    border-color: #0891b2;
    transform: scale(1.05);
}

.plan-card.featured::before {
    content: "人気";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #0891b2;
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.plan-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e3a8a;
    margin: 20px 0;
}

.plan-price span {
    font-size: 1rem;
    color: #64748b;
    font-weight: 400;
}

.plan-card ul {
    list-style: none;
    margin: 30px 0;
    text-align: left;
}

.plan-card li {
    padding: 8px 0;
    position: relative;
    padding-left: 24px;
}

.plan-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #16a34a;
    font-weight: 600;
}

/* Manager Console */
.manager-console {
    padding: 80px 0;
    background: white;
}

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

.console-features {
    list-style: none;
    margin: 30px 0;
}

.console-features li {
    padding: 8px 0;
    position: relative;
    padding-left: 24px;
}

.console-features li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: #0891b2;
    font-weight: 600;
}

/* Partnerships */
.partnerships {
    padding: 80px 0;
    text-align: center;
    background: #f8fafc;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.partner-placeholder {
    background: white;
    border-radius: 12px;
    padding: 40px 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
    font-weight: 600;
    color: #64748b;
    text-align: center;
}

/* Contact */
.contact {
    padding: 80px 0;
    text-align: center;
    background: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

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

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
}

.contact-icon svg {
    width: 28px;
    height: 28px;
}

/* Footer */
.footer {
    background: #1a202c;
    color: #cbd5e1;
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-brand {
    flex: 2;
    min-width: 300px;
}

.footer-column {
    flex: 1;
    min-width: 150px;
}

.footer-brand .logo-section .brand-name {
    color: white;
}

.footer-brand p {
    color: #94a3b8;
    margin-top: 16px;
}

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

.footer-column li {
    margin-bottom: 8px;
}

.footer-column a {
    color: #cbd5e1;
    text-decoration: none;
}

.footer-column a:hover {
    color: #06b6d4;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 20px;
    text-align: center;
    color: #9ca3af;
}

/* SVG Favicon */
.favicon {
    display: none;
}

/* Responsive Design */
.centered-section {
    text-align: center;
}

.centered-section .container > * {
    text-align: center;
}

.centered-section .console-content {
    text-align: left;
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-content {
        gap: 30px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-buttons button {
        min-width: 140px;
    }
    
    .features-grid,
    .plans-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .console-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 25px;
        text-align: left;
    }
    
    .footer-brand,
    .footer-column {
        min-width: auto;
    }
    
    .plan-card.featured {
        transform: none;
    }
    
    .about-content-with-visual,
    .about-content-with-photo {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
}