:root {
    --primary: #1e293b;
    --primary-dark: #0f172a;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text: #334155;
    --text-muted: #64748b;
    --border: #e2e8f0;
}

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

body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif;
    color: var(--text);
    background-color: var(--bg-light);
    line-height: 1.8;
    font-size: 16px;
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: white;
    padding: 8px;
    z-index: 100;
    transition: top 0.2s;
}
.skip-link:focus {
    top: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

/* Navigation */
header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.35rem;
    color: var(--primary);
}

.logo img {
    width: 35px;
    height: 35px;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.2s;
}

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

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s;
    text-align: center;
}

.btn:hover {
    background-color: var(--accent-hover);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
}

.btn-secondary:hover {
    background-color: var(--accent);
    color: white;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary);
}

/* Hero Section */
.hero {
    background-color: var(--primary-dark);
    color: white;
    padding: 5rem 1.5rem;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 2.5rem;
    line-height: 1.4;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.15rem;
    margin-bottom: 2rem;
    color: #cbd5e1;
}

.hero-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

/* Stats */
.stats {
    background-color: var(--bg-white);
    padding: 3rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.25rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

/* Sections */
section {
    padding: 5rem 1.5rem;
}

.section-title {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3.5rem auto;
}

.section-title h2 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

/* Steps */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.step-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    position: relative;
}

.step-num {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 3rem;
    font-weight: 800;
    color: #f1f5f9;
    z-index: 1;
}

.step-card-content {
    position: relative;
    z-index: 2;
}

.step-card i {
    font-size: 1.75rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.step-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Features */
.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.features-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.features-list {
    list-style: none;
}

.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 1.5rem;
}

.features-list i {
    color: var(--accent);
    margin-top: 5px;
}

/* Services */
.services-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.2s;
}

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

.service-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.service-body {
    padding: 2rem;
}

.service-body h3 {
    margin-bottom: 1rem;
    font-size: 1.35rem;
    color: var(--primary);
}

/* Pricing */
.pricing-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: flex-start;
}

.pricing-card {
    background: var(--bg-white);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    text-align: center;
    position: relative;
}

.pricing-card.popular {
    border: 3px solid var(--accent);
    box-shadow: 0 10px 25px rgba(37,99,235,0.1);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: white;
    padding: 0.25rem 1rem;
    font-size: 0.85rem;
    border-radius: 20px;
    font-weight: bold;
}

.price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin: 1.5rem 0;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.pricing-features li {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features i {
    color: var(--accent);
}

/* Forms */
.form-section {
    background: var(--primary-dark);
    color: white;
}

.form-container {
    max-width: 700px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input, textarea, select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 4px;
    background: rgba(255,255,255,0.05);
    color: white;
    font-size: 1rem;
}

input:focus, textarea:focus, select:focus {
    background: rgba(255,255,255,0.1);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input {
    width: auto;
    margin-top: 5px;
}

.checkbox-group a {
    color: #93c5fd;
    text-decoration: underline;
}

/* Accordion */
.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--bg-white);
    margin-bottom: 1rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-content {
    padding: 0 1.5rem 1.5rem 1.5rem;
    display: none;
}

.accordion-item.active .accordion-content {
    display: block;
}

.accordion-item.active .accordion-header i {
    transform: rotate(180deg);
}

/* Trust Layer */
.trust-layer {
    background: #f1f5f9;
    padding: 3rem 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.trust-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.trust-layer h4 {
    color: var(--primary);
    margin-bottom: 1rem;
}

/* Footer */
footer {
    background-color: var(--primary-dark);
    color: white;
    padding: 4rem 1.5rem 2rem 1.5rem;
    font-size: 0.9rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-info p {
    color: #cbd5e1;
    margin: 1rem 0;
}

.footer-links h4, .footer-contact h4 {
    margin-bottom: 1.5rem;
    font-size: 1rem;
    color: white;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

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

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

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    color: #94a3b8;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    max-width: 450px;
    background: var(--primary-dark);
    color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    z-index: 1000;
    display: none;
}

.cookie-content p {
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.cookie-content a {
    color: #93c5fd;
}

.cookie-actions {
    display: flex;
    justify-content: flex-end;
}

/* Responsive */
@media (max-width: 968px) {
    .hero-container, .features-grid, .services-grid, .pricing-grid, .footer-container, .trust-container {
        grid-template-columns: 1fr;
    }
    .steps-grid, .stats-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.active {
        display: flex;
    }
    .mobile-menu-btn {
        display: block;
    }
    .stats-container, .steps-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}