:root {
    /* Color Palette */
    --color-main: #00489e;
    --color-base: #fdfdfd;
    --color-text: #333333;
    --color-accent: #F7931E;
    /* Warm Orange for CTA */
    --color-accent-hover: #d67d14;
    --color-background-alt: #f0f4f8;
    --color-warning: #d9534f;

    /* Typography */
    --font-family: "Noto Sans JP", sans-serif;

    /* Spacing */
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-base);
    line-height: 1.6;
}

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 700;
    text-align: center;
    transition: background-color 0.3s ease, transform 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--color-accent);
    color: #fff;
    box-shadow: 0 4px 6px rgba(247, 147, 30, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: #fff;
    color: var(--color-main);
    border: 2px solid var(--color-main);
}

.btn-secondary:hover {
    background-color: var(--color-main);
    color: #fff;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-main);
    font-weight: 700;
}

.highlight {
    color: var(--color-accent);
    font-weight: bold;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .section-title {
        font-size: 1.5rem;
    }
}

/* --- Layout Utilities --- */
.text-center {
    text-align: center;
}

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

.section-padding {
    padding: var(--spacing-xl) 0;
}

.bg-white {
    background-color: #fff;
}

.bg-alt {
    background-color: var(--color-background-alt);
}

.bg-warning-light {
    background-color: #fff3cd;
}

/* --- Hero Section --- */
/* --- Hero Section (Modernized) --- */
.hero {
    position: relative;
    height: 90vh;
    /* Increased height for impact */
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    /* Align to left */
    color: #fff;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Removed global brightness filter, replaced with gradient overlay below */
}

/* Gradient Overlay for Readability & Mood */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right,
            rgba(0, 72, 158, 0.85) 0%,
            rgba(0, 72, 158, 0.6) 40%,
            rgba(0, 0, 0, 0) 100%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    /* Bring text above overlay */
    max-width: 1200px;
    width: 100%;
    padding: 0 var(--spacing-md);
}

.hero-text-box {
    max-width: 650px;
    /* Limit width for readability */
    /* Glassmorphism Effect */
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-content h1 {
    font-size: 3.5rem;
    /* Larger font size */
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    text-shadow: none;
    /* Removed heavy shadow */
    letter-spacing: -0.02em;
}

.hero-tag {
    display: inline-block;
    background-color: var(--color-accent);
    color: #fff;
    padding: 0.25rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: bold;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.sub-h1 {
    display: block;
    font-size: 1.2rem;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.hero-lead {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    opacity: 0.95;
    border-left: 4px solid var(--color-accent);
    padding-left: var(--spacing-md);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-start;
    /* Left align buttons */
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 220px;
}

.btn-sub {
    font-size: 0.75rem;
    opacity: 0.9;
    font-weight: 400;
    margin-top: 2px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* --- Concept Section --- */
.concept-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.concept-image,
.concept-text {
    flex: 1;
}

.concept-image img {
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* --- Warning Section --- */
.warning-title {
    color: #856404;
}

.warning-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.warning-item {
    background: #fff;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid #ffeeba;
}

.warning-item h3 {
    color: var(--color-warning);
    margin-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-warning);
    display: inline-block;
}

.highlight-box {
    border: 2px solid var(--color-main);
    background-color: #e8f0fe;
}

.highlight-box h3 {
    color: var(--color-main);
    border-bottom-color: var(--color-main);
}

/* --- Reasons Section --- */
.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.reason-card {
    background: #fff;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.reason-icon {
    font-size: 3rem;
    font-weight: 900;
    color: rgba(0, 72, 158, 0.1);
    position: absolute;
    top: -10px;
    right: 10px;
}

.reason-card h3 {
    color: var(--color-main);
    margin-bottom: var(--spacing-md);
}

/* --- Comparison Section --- */
.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.comparison-table th,
.comparison-table td {
    border: 1px solid #ddd;
    padding: var(--spacing-md);
    text-align: center;
}

.comparison-table th {
    background-color: var(--color-background-alt);
}

.col-buy {
    background-color: #fff3e0 !important;
    /* Light Orange */
    color: #e65100;
}

.col-broker {
    background-color: #e3f2fd !important;
    /* Light Blue */
    color: #0d47a1;
}

/* --- Case Studies --- */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.case-card {
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.case-content {
    padding: var(--spacing-md);
}

.case-label {
    background-color: var(--color-main);
    color: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-bottom: var(--spacing-sm);
    display: inline-block;
}

.case-price {
    font-weight: 700;
    color: var(--color-accent);
    font-size: 1.2rem;
    margin-top: var(--spacing-sm);
    text-align: right;
}

/* --- Flow Section --- */
.flow-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.step-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: #fff;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.step-number {
    background-color: var(--color-main);
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

/* --- FAQ Section --- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    margin-bottom: var(--spacing-sm);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.faq-question {
    padding: var(--spacing-md);
    background-color: #fff;
    font-weight: 700;
    cursor: pointer;
    border-bottom: 1px solid #eee;
}

.faq-question::before {
    content: "Q.";
    color: var(--color-accent);
    margin-right: var(--spacing-sm);
}

.faq-answer {
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-main);
}

/* --- Footer --- */
.site-footer {
    background-color: #333;
    /* Dark Footer */
    color: #fff;
    padding: var(--spacing-xl) 0 var(--spacing-md);
    text-align: center;
}

.footer-cta {
    margin-bottom: var(--spacing-lg);
}

.footer-cta h3 {
    margin-bottom: var(--spacing-md);
}

.footer-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }

    .concept-content {
        flex-direction: column;
    }

    .concept-image,
    .concept-text {
        width: 100%;
    }

    .hero-cta {
        flex-direction: column;
    }

    .step-item {
        flex-direction: column;
        text-align: center;
    }
}

/* Route Grid Layout Fixes */
.route-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 992px) {
    .route-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .route-grid {
        grid-template-columns: 1fr;
    }
}