/* ===========================================
   知っておきたいこと - ポータルページ スタイルシート
   =========================================== */

/* Portal Hero Section */
.portal-hero {
    position: relative;
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(60px + var(--spacing-2xl)) var(--spacing-md) var(--spacing-2xl);
    overflow: hidden;
}

.portal-hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-bg) 50%, var(--color-accent-light) 100%);
    opacity: 0.5;
    z-index: -1;
}

.portal-hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%236B9BD2' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.portal-hero-content {
    text-align: center;
    max-width: 800px;
}

.portal-title {
    margin-bottom: var(--spacing-lg);
}

.title-main {
    display: block;
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    color: var(--color-primary-dark);
    font-family: var(--font-rounded);
    margin-bottom: var(--spacing-sm);
}

.title-sub {
    display: block;
    font-size: clamp(1rem, 3vw, 1.5rem);
    font-weight: 500;
    color: var(--color-text-light);
}

.portal-desc {
    font-size: 1.1rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* Portal Cards Section */
.portal-cards-section {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: var(--color-bg);
}

.portal-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .portal-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .portal-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portal-card:last-child {
        grid-column: span 2;
        max-width: 500px;
        justify-self: center;
    }
}

/* Portal Card */
.portal-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    color: var(--color-text);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border: 2px solid transparent;
}

.portal-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    color: var(--color-text);
}

/* Card Colors */
.card-net { border-left: 4px solid #6B9BD2; }
.card-net:hover { border-color: #6B9BD2; background: linear-gradient(135deg, #f0f7ff 0%, #fff 100%); }
.card-net .card-icon { background: linear-gradient(135deg, #6B9BD2, #8BB4E0); }

.card-money { border-left: 4px solid #68D391; }
.card-money:hover { border-color: #68D391; background: linear-gradient(135deg, #f0fff4 0%, #fff 100%); }
.card-money .card-icon { background: linear-gradient(135deg, #68D391, #9AE6B4); }

.card-edu { border-left: 4px solid #F6AD55; }
.card-edu:hover { border-color: #F6AD55; background: linear-gradient(135deg, #fffaf0 0%, #fff 100%); }
.card-edu .card-icon { background: linear-gradient(135deg, #F6AD55, #FBD38D); }

.card-work { border-left: 4px solid #9F7AEA; }
.card-work:hover { border-color: #9F7AEA; background: linear-gradient(135deg, #faf5ff 0%, #fff 100%); }
.card-work .card-icon { background: linear-gradient(135deg, #9F7AEA, #B794F4); }

.card-support { border-left: 4px solid #FC8181; }
.card-support:hover { border-color: #FC8181; background: linear-gradient(135deg, #fff5f5 0%, #fff 100%); }
.card-support .card-icon { background: linear-gradient(135deg, #FC8181, #FEB2B2); }

.card-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1.5rem;
}

.card-content {
    flex: 1;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.card-desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.card-topics {
    list-style: none;
    padding: 0;
    margin: 0;
}

.card-topics li {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.card-topics li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

.card-arrow {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast), color var(--transition-fast);
}

.portal-card:hover .card-arrow {
    transform: translateX(4px);
    color: var(--color-primary);
}

/* About Section */
.portal-about {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: var(--color-bg-alt);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    font-size: 1.5rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.about-content h2 i {
    color: var(--color-primary);
}

.about-content p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.evidence-note {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-safe-bg);
    border-radius: var(--radius-full);
    color: var(--color-safe);
    font-weight: 500;
}

.evidence-note i {
    font-size: 1.2rem;
}

/* Footer */
.portal-footer {
    background: var(--color-text);
    color: var(--color-bg);
    padding: var(--spacing-2xl) var(--spacing-md);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--color-bg);
}

.footer-logo i {
    font-size: 1.5rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-links a {
    color: var(--color-bg-alt);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-disclaimer {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-disclaimer p {
    font-size: 0.85rem;
    color: var(--color-bg-alt);
    line-height: 1.6;
    margin: 0;
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.footer-copyright p {
    margin: 0;
}

/* Responsive adjustments */
@media (max-width: 767px) {
    .portal-card {
        flex-direction: column;
        text-align: center;
    }

    .card-icon {
        margin: 0 auto;
    }

    .card-topics li {
        padding-left: 0;
    }

    .card-topics li::before {
        display: none;
    }

    .card-arrow {
        display: none;
    }
}