/* ============================================
   AdKura Guides Top Page - B2B SaaS Style
   ============================================ */

:root {
    --color-primary: #243d5c;
    --color-primary-hover: #2d4a6f;
    --color-accent: #3b82f6;
    --color-accent-light: #60a5fa;
    --color-text: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #94a3b8;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg-alt);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-accent);
    text-decoration: none;
}

/* Header */
.header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 0 32px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-inner {
    max-width: 1120px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
}

.logo-image {
    height: 24px;
    width: auto;
}

.logo-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    padding-left: 10px;
    border-left: 1px solid var(--color-border);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.header-nav a,
.header-nav .nav-link {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 8px 14px;
    border-radius: 6px;
    transition: all 0.15s ease;
}

.header-nav a:hover,
.header-nav .nav-link:hover {
    color: var(--color-text);
    background: var(--color-bg-alt);
}

.header-nav .nav-link--primary {
    background: var(--color-primary);
    color: white !important;
    margin-left: 8px;
}

.header-nav .nav-link--primary:hover {
    background: var(--color-primary-hover);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 20px;
    height: 1.5px;
    background: var(--color-text);
    transition: 0.2s ease;
}

/* Main Content */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 32px;
}

.hero {
    text-align: center;
    margin-bottom: 64px;
}

.hero-icon {
    display: none;
}

.hero-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.hero-description {
    font-size: 15px;
    color: var(--color-text-secondary);
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 800px;
    width: 100%;
}

.card {
    background: var(--color-bg);
    border-radius: 12px;
    padding: 32px;
    text-align: left;
    border: 1px solid var(--color-border);
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
}

.card:hover {
    border-color: var(--color-text-muted);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
}

.card-icon i {
    font-size: 20px;
    color: var(--color-text);
}

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

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

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.card-description {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.card-features {
    list-style: none;
    margin-bottom: 24px;
    flex: 1;
}

.card-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.card-features li i {
    color: var(--color-accent);
    font-size: 10px;
    width: 16px;
    text-align: center;
}

.card-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--color-primary);
    color: white;
    font-size: 13px;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.15s ease;
    width: 100%;
}

.card-btn i {
    font-size: 12px;
    transition: transform 0.15s ease;
}

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

.card:hover .card-btn i {
    transform: translateX(3px);
}

/* Footer */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: 20px 32px;
}

.footer-inner {
    max-width: 1120px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-logo-image {
    height: 20px;
    width: auto;
}

.footer-copyright {
    font-size: 12px;
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 12px;
    color: var(--color-text-muted);
    transition: color 0.15s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 0 20px;
    }

    .header-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .main {
        padding: 48px 20px;
    }

    .hero {
        margin-bottom: 40px;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-description {
        font-size: 14px;
    }

    .cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .card {
        padding: 24px;
    }

    .footer {
        padding: 16px 20px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 12px;
    }

    .footer-brand {
        flex-direction: column;
        gap: 4px;
    }

    .footer-links {
        gap: 16px;
    }
}