/* ===========================
   Messages Page Styles - Optimized
   =========================== */

.messages-info {
    max-width: 1000px;
    margin: 0 auto;
}

/* Info Card - 高コントラスト対応 */
.info-card {
    background: var(--primary-light);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    margin-bottom: var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
}

.info-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--space-lg);
    display: block;
}

.info-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.info-card p {
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: var(--space-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.info-card p:last-child {
    margin-bottom: 0;
}

/* Contact Methods - 最適化版 */
.contact-methods {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-xl);
    margin-bottom: var(--space-2xl);
    transition: box-shadow 0.3s ease;
}

.contact-methods:hover {
    box-shadow: var(--shadow-md);
}

.contact-methods h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    position: relative;
    padding-left: var(--space-lg);
}

.contact-methods h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 2px;
}

.method-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.method-card {
    text-align: center;
    padding: var(--space-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.method-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-light);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.method-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.method-card:hover::before {
    opacity: 1;
}

.method-card > * {
    position: relative;
    z-index: 1;
}

.method-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    background: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.method-card:hover .method-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.method-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.method-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Recent Connections - 最適化版 */
.recent-connections {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-xl);
    transition: box-shadow 0.3s ease;
}

.recent-connections:hover {
    box-shadow: var(--shadow-md);
}

.recent-connections h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    position: relative;
    padding-left: var(--space-lg);
}

.recent-connections h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 2px;
}

.connections-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    min-height: 200px;
}

.connection-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.connection-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-color);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.connection-item:hover {
    background: var(--primary-light);
    transform: translateX(4px);
}

.connection-item:hover::before {
    transform: translateX(0);
}

.connection-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.connection-item:hover .connection-avatar {
    border-color: var(--primary-color);
}

.connection-info {
    flex: 1;
    min-width: 0;
}

.connection-info h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.connection-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.connection-actions {
    flex-shrink: 0;
}

.connection-actions .btn {
    white-space: nowrap;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
}

.empty-state i {
    font-size: 4rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

/* Responsive Design */
@media (max-width: 768px) {
    .info-card {
        padding: var(--space-lg);
    }
    
    .info-card i {
        font-size: 2.5rem;
    }
    
    .info-card h2 {
        font-size: 1.25rem;
    }
    
    .method-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .method-card {
        padding: var(--space-md);
    }
    
    .method-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .contact-methods,
    .recent-connections {
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .info-card {
        padding: var(--space-md);
    }
    
    .info-card i {
        font-size: 2rem;
        margin-bottom: var(--space-md);
    }
    
    .info-card h2 {
        font-size: 1.125rem;
        margin-bottom: var(--space-md);
    }
    
    .info-card p {
        font-size: 0.875rem;
    }
    
    .contact-methods,
    .recent-connections {
        padding: var(--space-md);
    }
    
    .connection-item {
        flex-direction: column;
        text-align: center;
        padding: var(--space-lg);
    }
    
    .connection-info {
        margin-bottom: var(--space-sm);
    }
    
    .empty-state i {
        font-size: 3rem;
    }
}