:root {
    --primary-color: #003366;
    --secondary-color: #0A2463;
    --accent-color: #FFD700;
    --text-color: #333333;
    --light-bg: #F4F7F6;
    --white: #FFFFFF;
    --font-main: 'Noto Sans JP', sans-serif;
}

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

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

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

ul {
    list-style: none;
}

/* Header */
header {
    background-color: var(--white);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    transition: color 0.3s;
}

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

.cta-button {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: var(--secondary-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 5%;
    margin-top: 60px;
    /* Header height */
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.hero-btn {
    background-color: var(--accent-color);
    color: var(--primary-color);
    padding: 1rem 2rem;
    border-radius: 5px;
    font-weight: bold;
    font-size: 1.2rem;
    transition: transform 0.3s;
}

.hero-btn:hover {
    transform: scale(1.05);
}

.campaign-message {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* Features Section */
.features {
    padding: 5rem 5%;
    background-color: var(--white);
    text-align: center;
}

.features h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: 2rem;
    background-color: var(--light-bg);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-image {
    width: 100%;
    max-width: 800px;
    height: auto;
    display: block;
    margin: 0 auto 3rem;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Use Cases Section */
.use-cases {
    padding: 5rem 5%;
    background-color: var(--light-bg);
}

.use-cases h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
}

.case-study {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1000px;
    margin: 0 auto 4rem;
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.case-study:nth-child(even) {
    flex-direction: row-reverse;
}

.case-content {
    padding: 3rem;
    flex: 1;
}

.case-image {
    flex: 1;
    height: 300px;
    background-color: #ddd;
    /* Placeholder */
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 1.5rem;
}

/* Pricing Section */
.pricing {
    padding: 5rem 5%;
    background-color: var(--white);
    text-align: center;
}

.pricing h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
}

.pricing-card {
    background: linear-gradient(135deg, #ffffff, #f0f4f8);
    border: 2px solid var(--primary-color);
    border-radius: 15px;
    padding: 3rem;
    max-width: 500px;
    margin: 0 auto;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.price {
    font-size: 3rem;
    color: var(--primary-color);
    font-weight: bold;
    margin: 1rem 0;
}

.price span {
    font-size: 1rem;
    color: #666;
}

.pricing-details {
    text-align: left;
    margin: 2rem 0;
}

.pricing-details li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.pricing-details li::before {
    content: "✓";
    color: green;
    position: absolute;
    left: 0;
}

/* Flow Section */
.flow-section {
    padding: 5rem 5%;
    background-color: var(--light-bg);
}

.flow-section h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
}

.flow-container {
    max-width: 1000px;
    margin: 0 auto 4rem;
    background-color: var(--white);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.flow-container h3 {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.flow-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.flow-step {
    padding-left: 1.5rem;
    border-left: 3px solid var(--primary-color);
}

.flow-step h4 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.flow-step p {
    font-size: 1rem;
    color: #555;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .flow-container {
        padding: 1.5rem;
    }
}

/* Documents Section */
.documents-section {
    padding: 3rem 5%;
    background-color: var(--white);
    text-align: center;
}

.documents-section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.document-list {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.document-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background-color: var(--light-bg);
    border: 1px solid #ddd;
    border-radius: 5px;
    color: var(--text-color);
    font-weight: bold;
    transition: background-color 0.3s, transform 0.3s;
}

.document-link:hover {
    background-color: #e9ecef;
    transform: translateY(-2px);
    color: var(--primary-color);
}

.doc-icon {
    font-size: 1.5rem;
}

/* Apply Section */
.apply-section {
    padding: 5rem 5%;
    background-color: var(--primary-color);
    text-align: center;
    color: var(--white);
}

.apply-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.apply-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.apply-btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--primary-color);
    padding: 1.2rem 3rem;
    border-radius: 50px;
    font-size: 1.5rem;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.apply-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Footer */
footer {
    background-color: #001a33;
    color: var(--white);
    padding: 3rem 5%;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: left;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.copyright {
    margin-top: 3rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Simple hide for now, would need hamburger menu for full mobile support */
    }

    .hero h1 {
        font-size: 2rem;
    }

    .case-study {
        flex-direction: column;
    }

    .case-study:nth-child(even) {
        flex-direction: column;
    }

    .case-image {
        width: 100%;
    }
}